From 696b23b57afa05f040fc4b165c80a1c00fd57938 Mon Sep 17 00:00:00 2001
From: Geert Bevin <gbevin@uwyn.com>
Date: Tue, 9 May 2023 21:20:16 -0400
Subject: [PATCH] First commit of standalone repo

---
 .gitignore                                    |   57 +
 .idea/.gitignore                              |    8 +
 .idea/bld.iml                                 |   14 +
 .idea/codeStyles/Project.xml                  |    7 +
 .idea/codeStyles/codeStyleConfig.xml          |    5 +
 .idea/framework.iml                           |   32 +
 .idea/libraries/bld.xml                       |   17 +
 .idea/libraries/compile.xml                   |   13 +
 .idea/libraries/runtime.xml                   |   14 +
 .idea/libraries/test.xml                      |   15 +
 .idea/misc.xml                                |    9 +
 .idea/modules.xml                             |    9 +
 .idea/runConfigurations/Run Tests.xml         |   13 +
 .idea/vcs.xml                                 |    7 +
 LICENSE.txt                                   |  202 +++
 bld                                           |    2 +
 bld.bat                                       |    4 +
 images/bld_logo.png                           |  Bin 0 -> 4982 bytes
 images/bld_logo.svg                           |   13 +
 lib/bld/bld-wrapper.jar                       |  Bin 0 -> 25099 bytes
 lib/bld/bld-wrapper.properties                |    8 +
 src/bld/java/rife/BldBuild.java               |  254 +++
 src/main/bld/bld                              |    2 +
 src/main/bld/bld.bat                          |    4 +
 src/main/java/rife/bld/BaseProject.java       | 1608 +++++++++++++++++
 src/main/java/rife/bld/BldVersion.java        |   43 +
 .../java/rife/bld/BldVersionSingleton.java    |   14 +
 src/main/java/rife/bld/BuildCommand.java      |   52 +
 src/main/java/rife/bld/BuildExecutor.java     |  467 +++++
 src/main/java/rife/bld/Cli.java               |  100 +
 src/main/java/rife/bld/CommandAnnotated.java  |   36 +
 src/main/java/rife/bld/CommandDefinition.java |   33 +
 src/main/java/rife/bld/CommandHelp.java       |   33 +
 src/main/java/rife/bld/NamedFile.java         |   19 +
 src/main/java/rife/bld/Project.java           |  195 ++
 src/main/java/rife/bld/WebProject.java        |  134 ++
 .../bld/blueprints/BaseProjectBlueprint.java  |   40 +
 .../bld/blueprints/BlankProjectBlueprint.java |   43 +
 .../bld/blueprints/LibProjectBlueprint.java   |   39 +
 .../bld/blueprints/Rife2ProjectBlueprint.java |   53 +
 .../rife/bld/blueprints/package-info.java     |   10 +
 .../bld/dependencies/ArtifactRetriever.java   |  202 +++
 .../rife/bld/dependencies/Dependency.java     |  169 ++
 .../bld/dependencies/DependencyExclusion.java |   34 +
 .../bld/dependencies/DependencyResolver.java  |  427 +++++
 .../bld/dependencies/DependencyScopes.java    |  141 ++
 .../rife/bld/dependencies/DependencySet.java  |  266 +++
 .../rife/bld/dependencies/ExclusionSet.java   |   16 +
 .../bld/dependencies/LocalDependency.java     |   17 +
 .../rife/bld/dependencies/MavenMetadata.java  |   63 +
 .../rife/bld/dependencies/PomDependency.java  |   47 +
 .../rife/bld/dependencies/Repository.java     |  197 ++
 .../bld/dependencies/RepositoryArtifact.java  |   23 +
 .../java/rife/bld/dependencies/Scope.java     |   44 +
 .../rife/bld/dependencies/VersionNumber.java  |  249 +++
 .../bld/dependencies/Xml2MavenMetadata.java   |  120 ++
 .../rife/bld/dependencies/Xml2MavenPom.java   |  375 ++++
 .../exceptions/ArtifactNotFoundException.java |   31 +
 .../ArtifactRetrievalErrorException.java      |   31 +
 .../exceptions/DependencyException.java       |   23 +
 .../DependencyTransferException.java          |   38 +
 .../DependencyXmlParsingErrorException.java   |   39 +
 .../dependencies/exceptions/package-info.java |   10 +
 .../rife/bld/dependencies/package-info.java   |   10 +
 src/main/java/rife/bld/help/CleanHelp.java    |   27 +
 src/main/java/rife/bld/help/CompileHelp.java  |   27 +
 .../java/rife/bld/help/CreateBaseHelp.java    |   29 +
 .../java/rife/bld/help/CreateBlankHelp.java   |   29 +
 .../java/rife/bld/help/CreateLibHelp.java     |   29 +
 .../java/rife/bld/help/CreateRife2Help.java   |   29 +
 .../rife/bld/help/DependencyTreeHelp.java     |   27 +
 src/main/java/rife/bld/help/DownloadHelp.java |   27 +
 src/main/java/rife/bld/help/HelpHelp.java     |   19 +
 src/main/java/rife/bld/help/JUnitHelp.java    |   35 +
 src/main/java/rife/bld/help/JarHelp.java      |   29 +
 .../java/rife/bld/help/JarJavadocHelp.java    |   29 +
 .../java/rife/bld/help/JarSourcesHelp.java    |   27 +
 src/main/java/rife/bld/help/JavadocHelp.java  |   27 +
 .../java/rife/bld/help/PrecompileHelp.java    |   27 +
 src/main/java/rife/bld/help/PublishHelp.java  |   30 +
 .../java/rife/bld/help/PublishWebHelp.java    |   31 +
 src/main/java/rife/bld/help/PurgeHelp.java    |   27 +
 src/main/java/rife/bld/help/RunHelp.java      |   27 +
 src/main/java/rife/bld/help/TestHelp.java     |   27 +
 src/main/java/rife/bld/help/UberJarHelp.java  |   29 +
 src/main/java/rife/bld/help/UpdatesHelp.java  |   27 +
 src/main/java/rife/bld/help/UpgradeHelp.java  |   29 +
 src/main/java/rife/bld/help/VersionHelp.java  |   27 +
 src/main/java/rife/bld/help/WarHelp.java      |   29 +
 src/main/java/rife/bld/help/package-info.java |   10 +
 .../operations/AbstractCreateOperation.java   |  526 ++++++
 .../bld/operations/AbstractOperation.java     |   86 +
 .../operations/AbstractProcessOperation.java  |  337 ++++
 .../rife/bld/operations/CleanOperation.java   |  101 ++
 .../rife/bld/operations/CompileOperation.java |  480 +++++
 .../bld/operations/CreateBaseOperation.java   |   26 +
 .../bld/operations/CreateBlankOperation.java  |   26 +
 .../bld/operations/CreateLibOperation.java    |   35 +
 .../bld/operations/CreateRife2Operation.java  |   92 +
 .../operations/DependencyTreeOperation.java   |  181 ++
 .../bld/operations/DownloadOperation.java     |  355 ++++
 .../rife/bld/operations/HelpOperation.java    |  105 ++
 .../rife/bld/operations/JUnitOperation.java   |   71 +
 .../rife/bld/operations/JUnitOptions.java     |  508 ++++++
 .../rife/bld/operations/JarOperation.java     |  418 +++++
 .../java/rife/bld/operations/JavaOptions.java |  308 ++++
 .../rife/bld/operations/JavacOptions.java     |  427 +++++
 .../rife/bld/operations/JavadocOperation.java |  436 +++++
 .../rife/bld/operations/JavadocOptions.java   |  959 ++++++++++
 .../bld/operations/PrecompileOperation.java   |  189 ++
 .../rife/bld/operations/PublishOperation.java |  706 ++++++++
 .../rife/bld/operations/PurgeOperation.java   |  369 ++++
 .../rife/bld/operations/RunOperation.java     |   93 +
 .../rife/bld/operations/TemplateType.java     |   59 +
 .../rife/bld/operations/TestOperation.java    |  115 ++
 .../rife/bld/operations/UberJarOperation.java |  268 +++
 .../rife/bld/operations/UpdatesOperation.java |  170 ++
 .../rife/bld/operations/UpgradeOperation.java |   33 +
 .../rife/bld/operations/VersionOperation.java |   26 +
 .../rife/bld/operations/WarOperation.java     |  377 ++++
 .../exceptions/ExitStatusException.java       |   45 +
 .../exceptions/OperationOptionException.java  |   21 +
 .../operations/exceptions/SignException.java  |   37 +
 .../exceptions/UploadException.java           |   35 +
 .../operations/exceptions/package-info.java   |   10 +
 .../rife/bld/operations/package-info.java     |   10 +
 src/main/java/rife/bld/package-info.java      |   10 +
 .../rife/bld/publish/MetadataBuilder.java     |  254 +++
 .../java/rife/bld/publish/PomBuilder.java     |  168 ++
 .../rife/bld/publish/PublishArtifact.java     |   24 +
 .../rife/bld/publish/PublishDeveloper.java    |  106 ++
 .../java/rife/bld/publish/PublishInfo.java    |  329 ++++
 .../java/rife/bld/publish/PublishLicense.java |   60 +
 .../java/rife/bld/publish/PublishScm.java     |   83 +
 .../rife/bld/publish/SnapshotVersion.java     |   26 +
 .../java/rife/bld/publish/package-info.java   |   10 +
 src/main/java/rife/bld/wrapper/Wrapper.java   |  553 ++++++
 .../rife/bld/wrapper/WrapperClassLoader.java  |   30 +
 .../bld/wrapper/WrapperExtensionResolver.java |  203 +++
 .../java/rife/bld/wrapper/package-info.java   |   10 +
 src/main/resources/BLD_VERSION                |    1 +
 .../templates/bld/base/idea/app_iml.xml       |   29 +
 .../templates/bld/base/idea/bld_iml.xml       |   14 +
 .../templates/bld/base/idea/libraries/bld.xml |   17 +
 .../bld/base/idea/libraries/compile.xml       |   13 +
 .../bld/base/idea/libraries/runtime.xml       |   14 +
 .../bld/base/idea/libraries/test.xml          |   14 +
 .../templates/bld/base/idea/misc.xml          |    6 +
 .../templates/bld/base/idea/modules.xml       |    9 +
 .../base/idea/runConfigurations/Run_Main.xml  |    9 +
 .../base/idea/runConfigurations/Run_Tests.xml |    9 +
 .../templates/bld/base/project_build.txt      |   20 +
 .../templates/bld/base/project_gitignore.txt  |   55 +
 .../templates/bld/base/project_main.txt       |   11 +
 .../templates/bld/base/project_test.txt       |   15 +
 .../templates/bld/base/vscode/launch.json     |   17 +
 .../templates/bld/base/vscode/settings.json   |   15 +
 .../templates/bld/blank/idea/app_iml.xml      |   29 +
 .../templates/bld/blank/idea/bld_iml.xml      |   14 +
 .../bld/blank/idea/libraries/bld.xml          |   17 +
 .../bld/blank/idea/libraries/compile.xml      |   13 +
 .../bld/blank/idea/libraries/runtime.xml      |   14 +
 .../bld/blank/idea/libraries/test.xml         |   14 +
 .../templates/bld/blank/idea/misc.xml         |    6 +
 .../templates/bld/blank/idea/modules.xml      |    9 +
 .../blank/idea/runConfigurations/Run_Main.xml |    9 +
 .../idea/runConfigurations/Run_Tests.xml      |   13 +
 .../templates/bld/blank/project_build.txt     |   26 +
 .../templates/bld/blank/project_gitignore.txt |   55 +
 .../templates/bld/blank/project_main.txt      |   11 +
 .../templates/bld/blank/project_test.txt      |   12 +
 .../templates/bld/blank/vscode/launch.json    |   24 +
 .../templates/bld/blank/vscode/settings.json  |   15 +
 src/main/resources/templates/bld/bld.txt      |    2 +
 src/main/resources/templates/bld/bld_bat.txt  |    4 +
 .../templates/bld/lib/idea/app_iml.xml        |   29 +
 .../templates/bld/lib/idea/bld_iml.xml        |   14 +
 .../templates/bld/lib/idea/libraries/bld.xml  |   17 +
 .../bld/lib/idea/libraries/compile.xml        |   13 +
 .../bld/lib/idea/libraries/runtime.xml        |   14 +
 .../templates/bld/lib/idea/libraries/test.xml |   14 +
 .../resources/templates/bld/lib/idea/misc.xml |    6 +
 .../templates/bld/lib/idea/modules.xml        |    9 +
 .../lib/idea/runConfigurations/Run_Tests.xml  |    9 +
 .../templates/bld/lib/project_build.txt       |   19 +
 .../templates/bld/lib/project_gitignore.txt   |   55 +
 .../templates/bld/lib/project_main.txt        |    7 +
 .../templates/bld/lib/project_test.txt        |   15 +
 .../templates/bld/lib/vscode/launch.json      |   11 +
 .../templates/bld/lib/vscode/settings.json    |   15 +
 .../bld/maven_metadata_blueprint.xml          |   63 +
 .../resources/templates/bld/pom_blueprint.xml |   80 +
 .../bld/rife2_hello/idea/app_iml.xml          |   30 +
 .../bld/rife2_hello/idea/bld_iml.xml          |   14 +
 .../bld/rife2_hello/idea/libraries/bld.xml    |   17 +
 .../rife2_hello/idea/libraries/compile.xml    |   13 +
 .../rife2_hello/idea/libraries/runtime.xml    |   14 +
 .../rife2_hello/idea/libraries/standalone.xml |   13 +
 .../bld/rife2_hello/idea/libraries/test.xml   |   14 +
 .../templates/bld/rife2_hello/idea/misc.xml   |    6 +
 .../bld/rife2_hello/idea/modules.xml          |    9 +
 .../idea/runConfigurations/Run_Main.xml       |    9 +
 .../idea/runConfigurations/Run_Tests.xml      |   13 +
 .../bld/rife2_hello/project_build.txt         |   31 +
 .../bld/rife2_hello/project_gitignore.txt     |   55 +
 .../bld/rife2_hello/project_main.txt          |   16 +
 .../bld/rife2_hello/project_main_uber.txt     |   11 +
 .../bld/rife2_hello/project_style.txt         |   21 +
 .../bld/rife2_hello/project_template.html     |   11 +
 .../bld/rife2_hello/project_test.txt          |   21 +
 .../templates/bld/rife2_hello/project_web.xml |   18 +
 .../bld/rife2_hello/vscode/launch.json        |   24 +
 .../bld/rife2_hello/vscode/settings.json      |   16 +
 src/test/java/rife/bld/TestProject.java       |  389 ++++
 src/test/java/rife/bld/TestWebProject.java    |  152 ++
 .../rife/bld/dependencies/TestDependency.java |  109 ++
 .../dependencies/TestDependencyResolver.java  | 1436 +++++++++++++++
 .../bld/dependencies/TestDependencySet.java   |  375 ++++
 .../rife/bld/dependencies/TestRepository.java |  123 ++
 .../bld/dependencies/TestVersionNumber.java   |  148 ++
 .../bld/operations/TestCleanOperation.java    |  161 ++
 .../bld/operations/TestCompileOperation.java  |  321 ++++
 .../operations/TestCreateBaseOperation.java   |  332 ++++
 .../operations/TestCreateBlankOperation.java  |  550 ++++++
 .../operations/TestCreateLibOperation.java    |  327 ++++
 .../operations/TestCreateRife2Operation.java  |  720 ++++++++
 .../TestDependencyTreeOperation.java          |  197 ++
 .../bld/operations/TestDownloadOperation.java |  314 ++++
 .../bld/operations/TestJUnitOperation.java    |  213 +++
 .../rife/bld/operations/TestJarOperation.java |  218 +++
 .../bld/operations/TestJavadocOperation.java  |  368 ++++
 .../operations/TestPrecompileOperation.java   |  137 ++
 .../bld/operations/TestPublishOperation.java  |  689 +++++++
 .../bld/operations/TestPurgeOperation.java    |  541 ++++++
 .../rife/bld/operations/TestRunOperation.java |  187 ++
 .../bld/operations/TestUberJarOperation.java  |  182 ++
 .../bld/operations/TestUpdatesOperation.java  |  172 ++
 .../rife/bld/operations/TestWarOperation.java |  156 ++
 .../rife/bld/publish/TestMetadataBuilder.java |  250 +++
 .../java/rife/bld/publish/TestPomBuilder.java |  558 ++++++
 .../wrapper/TestWrapperExtensionResolver.java |  566 ++++++
 241 files changed, 28028 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 .idea/.gitignore
 create mode 100644 .idea/bld.iml
 create mode 100644 .idea/codeStyles/Project.xml
 create mode 100644 .idea/codeStyles/codeStyleConfig.xml
 create mode 100644 .idea/framework.iml
 create mode 100644 .idea/libraries/bld.xml
 create mode 100644 .idea/libraries/compile.xml
 create mode 100644 .idea/libraries/runtime.xml
 create mode 100644 .idea/libraries/test.xml
 create mode 100644 .idea/misc.xml
 create mode 100644 .idea/modules.xml
 create mode 100644 .idea/runConfigurations/Run Tests.xml
 create mode 100644 .idea/vcs.xml
 create mode 100644 LICENSE.txt
 create mode 100755 bld
 create mode 100644 bld.bat
 create mode 100644 images/bld_logo.png
 create mode 100644 images/bld_logo.svg
 create mode 100644 lib/bld/bld-wrapper.jar
 create mode 100644 lib/bld/bld-wrapper.properties
 create mode 100644 src/bld/java/rife/BldBuild.java
 create mode 100755 src/main/bld/bld
 create mode 100644 src/main/bld/bld.bat
 create mode 100644 src/main/java/rife/bld/BaseProject.java
 create mode 100644 src/main/java/rife/bld/BldVersion.java
 create mode 100644 src/main/java/rife/bld/BldVersionSingleton.java
 create mode 100644 src/main/java/rife/bld/BuildCommand.java
 create mode 100644 src/main/java/rife/bld/BuildExecutor.java
 create mode 100644 src/main/java/rife/bld/Cli.java
 create mode 100644 src/main/java/rife/bld/CommandAnnotated.java
 create mode 100644 src/main/java/rife/bld/CommandDefinition.java
 create mode 100644 src/main/java/rife/bld/CommandHelp.java
 create mode 100644 src/main/java/rife/bld/NamedFile.java
 create mode 100644 src/main/java/rife/bld/Project.java
 create mode 100644 src/main/java/rife/bld/WebProject.java
 create mode 100644 src/main/java/rife/bld/blueprints/BaseProjectBlueprint.java
 create mode 100644 src/main/java/rife/bld/blueprints/BlankProjectBlueprint.java
 create mode 100644 src/main/java/rife/bld/blueprints/LibProjectBlueprint.java
 create mode 100644 src/main/java/rife/bld/blueprints/Rife2ProjectBlueprint.java
 create mode 100644 src/main/java/rife/bld/blueprints/package-info.java
 create mode 100644 src/main/java/rife/bld/dependencies/ArtifactRetriever.java
 create mode 100644 src/main/java/rife/bld/dependencies/Dependency.java
 create mode 100644 src/main/java/rife/bld/dependencies/DependencyExclusion.java
 create mode 100644 src/main/java/rife/bld/dependencies/DependencyResolver.java
 create mode 100644 src/main/java/rife/bld/dependencies/DependencyScopes.java
 create mode 100644 src/main/java/rife/bld/dependencies/DependencySet.java
 create mode 100644 src/main/java/rife/bld/dependencies/ExclusionSet.java
 create mode 100644 src/main/java/rife/bld/dependencies/LocalDependency.java
 create mode 100644 src/main/java/rife/bld/dependencies/MavenMetadata.java
 create mode 100644 src/main/java/rife/bld/dependencies/PomDependency.java
 create mode 100644 src/main/java/rife/bld/dependencies/Repository.java
 create mode 100644 src/main/java/rife/bld/dependencies/RepositoryArtifact.java
 create mode 100644 src/main/java/rife/bld/dependencies/Scope.java
 create mode 100644 src/main/java/rife/bld/dependencies/VersionNumber.java
 create mode 100644 src/main/java/rife/bld/dependencies/Xml2MavenMetadata.java
 create mode 100644 src/main/java/rife/bld/dependencies/Xml2MavenPom.java
 create mode 100644 src/main/java/rife/bld/dependencies/exceptions/ArtifactNotFoundException.java
 create mode 100644 src/main/java/rife/bld/dependencies/exceptions/ArtifactRetrievalErrorException.java
 create mode 100644 src/main/java/rife/bld/dependencies/exceptions/DependencyException.java
 create mode 100644 src/main/java/rife/bld/dependencies/exceptions/DependencyTransferException.java
 create mode 100644 src/main/java/rife/bld/dependencies/exceptions/DependencyXmlParsingErrorException.java
 create mode 100644 src/main/java/rife/bld/dependencies/exceptions/package-info.java
 create mode 100644 src/main/java/rife/bld/dependencies/package-info.java
 create mode 100644 src/main/java/rife/bld/help/CleanHelp.java
 create mode 100644 src/main/java/rife/bld/help/CompileHelp.java
 create mode 100644 src/main/java/rife/bld/help/CreateBaseHelp.java
 create mode 100644 src/main/java/rife/bld/help/CreateBlankHelp.java
 create mode 100644 src/main/java/rife/bld/help/CreateLibHelp.java
 create mode 100644 src/main/java/rife/bld/help/CreateRife2Help.java
 create mode 100644 src/main/java/rife/bld/help/DependencyTreeHelp.java
 create mode 100644 src/main/java/rife/bld/help/DownloadHelp.java
 create mode 100644 src/main/java/rife/bld/help/HelpHelp.java
 create mode 100644 src/main/java/rife/bld/help/JUnitHelp.java
 create mode 100644 src/main/java/rife/bld/help/JarHelp.java
 create mode 100644 src/main/java/rife/bld/help/JarJavadocHelp.java
 create mode 100644 src/main/java/rife/bld/help/JarSourcesHelp.java
 create mode 100644 src/main/java/rife/bld/help/JavadocHelp.java
 create mode 100644 src/main/java/rife/bld/help/PrecompileHelp.java
 create mode 100644 src/main/java/rife/bld/help/PublishHelp.java
 create mode 100644 src/main/java/rife/bld/help/PublishWebHelp.java
 create mode 100644 src/main/java/rife/bld/help/PurgeHelp.java
 create mode 100644 src/main/java/rife/bld/help/RunHelp.java
 create mode 100644 src/main/java/rife/bld/help/TestHelp.java
 create mode 100644 src/main/java/rife/bld/help/UberJarHelp.java
 create mode 100644 src/main/java/rife/bld/help/UpdatesHelp.java
 create mode 100644 src/main/java/rife/bld/help/UpgradeHelp.java
 create mode 100644 src/main/java/rife/bld/help/VersionHelp.java
 create mode 100644 src/main/java/rife/bld/help/WarHelp.java
 create mode 100644 src/main/java/rife/bld/help/package-info.java
 create mode 100644 src/main/java/rife/bld/operations/AbstractCreateOperation.java
 create mode 100644 src/main/java/rife/bld/operations/AbstractOperation.java
 create mode 100644 src/main/java/rife/bld/operations/AbstractProcessOperation.java
 create mode 100644 src/main/java/rife/bld/operations/CleanOperation.java
 create mode 100644 src/main/java/rife/bld/operations/CompileOperation.java
 create mode 100644 src/main/java/rife/bld/operations/CreateBaseOperation.java
 create mode 100644 src/main/java/rife/bld/operations/CreateBlankOperation.java
 create mode 100644 src/main/java/rife/bld/operations/CreateLibOperation.java
 create mode 100644 src/main/java/rife/bld/operations/CreateRife2Operation.java
 create mode 100644 src/main/java/rife/bld/operations/DependencyTreeOperation.java
 create mode 100644 src/main/java/rife/bld/operations/DownloadOperation.java
 create mode 100644 src/main/java/rife/bld/operations/HelpOperation.java
 create mode 100644 src/main/java/rife/bld/operations/JUnitOperation.java
 create mode 100644 src/main/java/rife/bld/operations/JUnitOptions.java
 create mode 100644 src/main/java/rife/bld/operations/JarOperation.java
 create mode 100644 src/main/java/rife/bld/operations/JavaOptions.java
 create mode 100644 src/main/java/rife/bld/operations/JavacOptions.java
 create mode 100644 src/main/java/rife/bld/operations/JavadocOperation.java
 create mode 100644 src/main/java/rife/bld/operations/JavadocOptions.java
 create mode 100644 src/main/java/rife/bld/operations/PrecompileOperation.java
 create mode 100644 src/main/java/rife/bld/operations/PublishOperation.java
 create mode 100644 src/main/java/rife/bld/operations/PurgeOperation.java
 create mode 100644 src/main/java/rife/bld/operations/RunOperation.java
 create mode 100644 src/main/java/rife/bld/operations/TemplateType.java
 create mode 100644 src/main/java/rife/bld/operations/TestOperation.java
 create mode 100644 src/main/java/rife/bld/operations/UberJarOperation.java
 create mode 100644 src/main/java/rife/bld/operations/UpdatesOperation.java
 create mode 100644 src/main/java/rife/bld/operations/UpgradeOperation.java
 create mode 100644 src/main/java/rife/bld/operations/VersionOperation.java
 create mode 100644 src/main/java/rife/bld/operations/WarOperation.java
 create mode 100644 src/main/java/rife/bld/operations/exceptions/ExitStatusException.java
 create mode 100644 src/main/java/rife/bld/operations/exceptions/OperationOptionException.java
 create mode 100644 src/main/java/rife/bld/operations/exceptions/SignException.java
 create mode 100644 src/main/java/rife/bld/operations/exceptions/UploadException.java
 create mode 100644 src/main/java/rife/bld/operations/exceptions/package-info.java
 create mode 100644 src/main/java/rife/bld/operations/package-info.java
 create mode 100644 src/main/java/rife/bld/package-info.java
 create mode 100644 src/main/java/rife/bld/publish/MetadataBuilder.java
 create mode 100644 src/main/java/rife/bld/publish/PomBuilder.java
 create mode 100644 src/main/java/rife/bld/publish/PublishArtifact.java
 create mode 100644 src/main/java/rife/bld/publish/PublishDeveloper.java
 create mode 100644 src/main/java/rife/bld/publish/PublishInfo.java
 create mode 100644 src/main/java/rife/bld/publish/PublishLicense.java
 create mode 100644 src/main/java/rife/bld/publish/PublishScm.java
 create mode 100644 src/main/java/rife/bld/publish/SnapshotVersion.java
 create mode 100644 src/main/java/rife/bld/publish/package-info.java
 create mode 100644 src/main/java/rife/bld/wrapper/Wrapper.java
 create mode 100644 src/main/java/rife/bld/wrapper/WrapperClassLoader.java
 create mode 100644 src/main/java/rife/bld/wrapper/WrapperExtensionResolver.java
 create mode 100644 src/main/java/rife/bld/wrapper/package-info.java
 create mode 100644 src/main/resources/BLD_VERSION
 create mode 100644 src/main/resources/templates/bld/base/idea/app_iml.xml
 create mode 100644 src/main/resources/templates/bld/base/idea/bld_iml.xml
 create mode 100644 src/main/resources/templates/bld/base/idea/libraries/bld.xml
 create mode 100644 src/main/resources/templates/bld/base/idea/libraries/compile.xml
 create mode 100644 src/main/resources/templates/bld/base/idea/libraries/runtime.xml
 create mode 100644 src/main/resources/templates/bld/base/idea/libraries/test.xml
 create mode 100644 src/main/resources/templates/bld/base/idea/misc.xml
 create mode 100644 src/main/resources/templates/bld/base/idea/modules.xml
 create mode 100644 src/main/resources/templates/bld/base/idea/runConfigurations/Run_Main.xml
 create mode 100644 src/main/resources/templates/bld/base/idea/runConfigurations/Run_Tests.xml
 create mode 100644 src/main/resources/templates/bld/base/project_build.txt
 create mode 100644 src/main/resources/templates/bld/base/project_gitignore.txt
 create mode 100644 src/main/resources/templates/bld/base/project_main.txt
 create mode 100644 src/main/resources/templates/bld/base/project_test.txt
 create mode 100644 src/main/resources/templates/bld/base/vscode/launch.json
 create mode 100644 src/main/resources/templates/bld/base/vscode/settings.json
 create mode 100644 src/main/resources/templates/bld/blank/idea/app_iml.xml
 create mode 100644 src/main/resources/templates/bld/blank/idea/bld_iml.xml
 create mode 100644 src/main/resources/templates/bld/blank/idea/libraries/bld.xml
 create mode 100644 src/main/resources/templates/bld/blank/idea/libraries/compile.xml
 create mode 100644 src/main/resources/templates/bld/blank/idea/libraries/runtime.xml
 create mode 100644 src/main/resources/templates/bld/blank/idea/libraries/test.xml
 create mode 100644 src/main/resources/templates/bld/blank/idea/misc.xml
 create mode 100644 src/main/resources/templates/bld/blank/idea/modules.xml
 create mode 100644 src/main/resources/templates/bld/blank/idea/runConfigurations/Run_Main.xml
 create mode 100644 src/main/resources/templates/bld/blank/idea/runConfigurations/Run_Tests.xml
 create mode 100644 src/main/resources/templates/bld/blank/project_build.txt
 create mode 100644 src/main/resources/templates/bld/blank/project_gitignore.txt
 create mode 100644 src/main/resources/templates/bld/blank/project_main.txt
 create mode 100644 src/main/resources/templates/bld/blank/project_test.txt
 create mode 100644 src/main/resources/templates/bld/blank/vscode/launch.json
 create mode 100644 src/main/resources/templates/bld/blank/vscode/settings.json
 create mode 100755 src/main/resources/templates/bld/bld.txt
 create mode 100755 src/main/resources/templates/bld/bld_bat.txt
 create mode 100644 src/main/resources/templates/bld/lib/idea/app_iml.xml
 create mode 100644 src/main/resources/templates/bld/lib/idea/bld_iml.xml
 create mode 100644 src/main/resources/templates/bld/lib/idea/libraries/bld.xml
 create mode 100644 src/main/resources/templates/bld/lib/idea/libraries/compile.xml
 create mode 100644 src/main/resources/templates/bld/lib/idea/libraries/runtime.xml
 create mode 100644 src/main/resources/templates/bld/lib/idea/libraries/test.xml
 create mode 100644 src/main/resources/templates/bld/lib/idea/misc.xml
 create mode 100644 src/main/resources/templates/bld/lib/idea/modules.xml
 create mode 100644 src/main/resources/templates/bld/lib/idea/runConfigurations/Run_Tests.xml
 create mode 100644 src/main/resources/templates/bld/lib/project_build.txt
 create mode 100644 src/main/resources/templates/bld/lib/project_gitignore.txt
 create mode 100644 src/main/resources/templates/bld/lib/project_main.txt
 create mode 100644 src/main/resources/templates/bld/lib/project_test.txt
 create mode 100644 src/main/resources/templates/bld/lib/vscode/launch.json
 create mode 100644 src/main/resources/templates/bld/lib/vscode/settings.json
 create mode 100644 src/main/resources/templates/bld/maven_metadata_blueprint.xml
 create mode 100644 src/main/resources/templates/bld/pom_blueprint.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/idea/app_iml.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/idea/bld_iml.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/idea/libraries/bld.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/idea/libraries/compile.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/idea/libraries/runtime.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/idea/libraries/standalone.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/idea/libraries/test.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/idea/misc.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/idea/modules.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/idea/runConfigurations/Run_Main.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/idea/runConfigurations/Run_Tests.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/project_build.txt
 create mode 100644 src/main/resources/templates/bld/rife2_hello/project_gitignore.txt
 create mode 100644 src/main/resources/templates/bld/rife2_hello/project_main.txt
 create mode 100644 src/main/resources/templates/bld/rife2_hello/project_main_uber.txt
 create mode 100644 src/main/resources/templates/bld/rife2_hello/project_style.txt
 create mode 100644 src/main/resources/templates/bld/rife2_hello/project_template.html
 create mode 100644 src/main/resources/templates/bld/rife2_hello/project_test.txt
 create mode 100644 src/main/resources/templates/bld/rife2_hello/project_web.xml
 create mode 100644 src/main/resources/templates/bld/rife2_hello/vscode/launch.json
 create mode 100644 src/main/resources/templates/bld/rife2_hello/vscode/settings.json
 create mode 100644 src/test/java/rife/bld/TestProject.java
 create mode 100644 src/test/java/rife/bld/TestWebProject.java
 create mode 100644 src/test/java/rife/bld/dependencies/TestDependency.java
 create mode 100644 src/test/java/rife/bld/dependencies/TestDependencyResolver.java
 create mode 100644 src/test/java/rife/bld/dependencies/TestDependencySet.java
 create mode 100644 src/test/java/rife/bld/dependencies/TestRepository.java
 create mode 100644 src/test/java/rife/bld/dependencies/TestVersionNumber.java
 create mode 100644 src/test/java/rife/bld/operations/TestCleanOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestCompileOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestCreateBaseOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestCreateBlankOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestCreateLibOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestCreateRife2Operation.java
 create mode 100644 src/test/java/rife/bld/operations/TestDependencyTreeOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestDownloadOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestJUnitOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestJarOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestJavadocOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestPrecompileOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestPublishOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestPurgeOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestRunOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestUberJarOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestUpdatesOperation.java
 create mode 100644 src/test/java/rife/bld/operations/TestWarOperation.java
 create mode 100644 src/test/java/rife/bld/publish/TestMetadataBuilder.java
 create mode 100644 src/test/java/rife/bld/publish/TestPomBuilder.java
 create mode 100644 src/test/java/rife/bld/wrapper/TestWrapperExtensionResolver.java

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..53114a2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,57 @@
+*.log
+embedded_dbs
+.gradle
+.DS_Store
+build
+lib/bld/**
+lib/compile/**
+lib/runtime/**
+lib/standalone/**
+lib/test/**
+!bld-wrapper.jar
+!bld-wrapper.properties
+
+# IDEA ignores
+
+# User-specific
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Editor-based Rest Client
+.idea/httpRequests
\ No newline at end of file
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..13566b8
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/bld.iml b/.idea/bld.iml
new file mode 100644
index 0000000..e63e11e
--- /dev/null
+++ b/.idea/bld.iml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/build/bld" />
+    <output-test url="file://$MODULE_DIR$/build/bld" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$/src/bld">
+      <sourceFolder url="file://$MODULE_DIR$/src/bld/java" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="bld" level="project" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
new file mode 100644
index 0000000..919ce1f
--- /dev/null
+++ b/.idea/codeStyles/Project.xml
@@ -0,0 +1,7 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <ScalaCodeStyleSettings>
+      <option name="MULTILINE_STRING_CLOSING_QUOTES_ON_NEW_LINE" value="true" />
+    </ScalaCodeStyleSettings>
+  </code_scheme>
+</component>
\ No newline at end of file
diff --git a/.idea/codeStyles/codeStyleConfig.xml b/.idea/codeStyles/codeStyleConfig.xml
new file mode 100644
index 0000000..a55e7a1
--- /dev/null
+++ b/.idea/codeStyles/codeStyleConfig.xml
@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>
\ No newline at end of file
diff --git a/.idea/framework.iml b/.idea/framework.iml
new file mode 100644
index 0000000..22bdcec
--- /dev/null
+++ b/.idea/framework.iml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/build/main" />
+    <output-test url="file://$MODULE_DIR$/build/test" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated" isTestSource="false" generated="true" />
+      <sourceFolder url="file://$MODULE_DIR$/core/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/core/src/test/java" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/core/src/main/resources/templates" />
+      <excludeFolder url="file://$MODULE_DIR$/src/main/resources/templates" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module-library" scope="RUNTIME">
+      <library>
+        <CLASSES>
+          <root url="file://$MODULE_DIR$/src/main/resources/templates" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+    <orderEntry type="library" name="compile" level="project" />
+    <orderEntry type="library" scope="RUNTIME" name="runtime" level="project" />
+    <orderEntry type="library" scope="TEST" name="test" level="project" />
+    <orderEntry type="module" module-name="bld" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/libraries/bld.xml b/.idea/libraries/bld.xml
new file mode 100644
index 0000000..71decad
--- /dev/null
+++ b/.idea/libraries/bld.xml
@@ -0,0 +1,17 @@
+<component name="libraryTable">
+  <library name="bld">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/bld" />
+      <root url="jar://$USER_HOME$/.rife2/dist/rife2-1.6.3.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="jar://$USER_HOME$/.rife2/dist/rife2-1.6.3-sources.jar!/" />
+    </SOURCES>
+    <excluded>
+      <root url="jar://$PROJECT_DIR$/lib/bld/bld-wrapper.jar!/" />
+    </excluded>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/bld" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/bld" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/libraries/compile.xml b/.idea/libraries/compile.xml
new file mode 100644
index 0000000..9bd86aa
--- /dev/null
+++ b/.idea/libraries/compile.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="compile">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/compile" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/compile" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/libraries/runtime.xml b/.idea/libraries/runtime.xml
new file mode 100644
index 0000000..2ae5c4b
--- /dev/null
+++ b/.idea/libraries/runtime.xml
@@ -0,0 +1,14 @@
+<component name="libraryTable">
+  <library name="runtime">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/runtime" />
+      <root url="file://$PROJECT_DIR$/src/main/resources" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/runtime" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/libraries/test.xml b/.idea/libraries/test.xml
new file mode 100644
index 0000000..d382c72
--- /dev/null
+++ b/.idea/libraries/test.xml
@@ -0,0 +1,15 @@
+<component name="libraryTable">
+  <library name="test">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/test" />
+      <root url="file://$PROJECT_DIR$/src/test/resources" />
+      <root url="file://$PROJECT_DIR$/core/src/test/resources" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/test" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..47e63bd
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PDMPlugin">
+    <option name="skipTestSources" value="false" />
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="19" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..7a6039d
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/bld.iml" filepath="$PROJECT_DIR$/.idea/bld.iml" />
+      <module fileurl="file://$PROJECT_DIR$/.idea/framework.iml" filepath="$PROJECT_DIR$/.idea/framework.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/runConfigurations/Run Tests.xml b/.idea/runConfigurations/Run Tests.xml
new file mode 100644
index 0000000..732b27e
--- /dev/null
+++ b/.idea/runConfigurations/Run Tests.xml	
@@ -0,0 +1,13 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Run Tests" type="JUnit" factoryName="JUnit">
+    <module name="framework" />
+    <option name="PACKAGE_NAME" value="rife" />
+    <option name="MAIN_CLASS_NAME" value="" />
+    <option name="METHOD_NAME" value="" />
+    <option name="TEST_OBJECT" value="package" />
+    <dir value="$PROJECT_DIR$/src/test/java" />
+    <method v="2">
+      <option name="Make" enabled="true" />
+    </method>
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..14b7c9c
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$/core" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
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diff --git a/bld b/bld
new file mode 100755
index 0000000..e67c495
--- /dev/null
+++ b/bld
@@ -0,0 +1,2 @@
+#!/usr/bin/env sh
+java -jar "$(dirname "$0")/lib/bld/bld-wrapper.jar" "$0" --build rife.BldBuild "$@"
\ No newline at end of file
diff --git a/bld.bat b/bld.bat
new file mode 100644
index 0000000..7ab09ac
--- /dev/null
+++ b/bld.bat
@@ -0,0 +1,4 @@
+@echo off
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+java -jar "%DIRNAME%/lib/bld/bld-wrapper.jar" "%0" --build rife.BldBuild %*
\ No newline at end of file
diff --git a/images/bld_logo.png b/images/bld_logo.png
new file mode 100644
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diff --git a/images/bld_logo.svg b/images/bld_logo.svg
new file mode 100644
index 0000000..81220b4
--- /dev/null
+++ b/images/bld_logo.svg
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
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+    <g transform="matrix(1,0,0,1,-210.511,-96.3382)">
+        <g transform="matrix(1,0,0,1,-23.3386,-649.816)">
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diff --git a/lib/bld/bld-wrapper.jar b/lib/bld/bld-wrapper.jar
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HcmV?d00001

diff --git a/lib/bld/bld-wrapper.properties b/lib/bld/bld-wrapper.properties
new file mode 100644
index 0000000..e7de0fa
--- /dev/null
+++ b/lib/bld/bld-wrapper.properties
@@ -0,0 +1,8 @@
+bld.downloadExtensionJavadoc=false
+bld.downloadExtensionSources=true
+bld.extension-antlr=com.uwyn.rife2:bld-antlr4:1.1.0
+bld.extension-archive=com.uwyn.rife2:bld-archive:0.3.0
+bld.extension-tests=com.uwyn.rife2:bld-tests-badge:1.3.0
+bld.repositories=MAVEN_CENTRAL,RIFE2_RELEASES
+rife2.downloadLocation=
+rife2.version=1.6.3
diff --git a/src/bld/java/rife/BldBuild.java b/src/bld/java/rife/BldBuild.java
new file mode 100644
index 0000000..bf2244d
--- /dev/null
+++ b/src/bld/java/rife/BldBuild.java
@@ -0,0 +1,254 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife;
+
+import rife.bld.BuildCommand;
+import rife.bld.Project;
+import rife.bld.dependencies.VersionNumber;
+import rife.bld.extension.Antlr4Operation;
+import rife.bld.extension.TestsBadgeOperation;
+import rife.bld.extension.ZipOperation;
+import rife.bld.operations.*;
+import rife.bld.publish.*;
+import rife.bld.wrapper.Wrapper;
+import rife.tools.DirBuilder;
+import rife.tools.FileUtils;
+import rife.tools.StringUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+import java.util.jar.Attributes;
+import java.util.regex.Pattern;
+
+import static rife.bld.dependencies.Repository.*;
+import static rife.bld.dependencies.Scope.*;
+import static rife.bld.operations.JavadocOptions.DocLinkOption.NO_MISSING;
+import static rife.bld.operations.TemplateType.*;
+import static rife.tools.FileUtils.path;
+
+public class BldBuild extends Project {
+    public BldBuild()
+    throws Exception {
+        pkg = "rife";
+        name = "bld";
+        mainClass = "rife.bld.Cli";
+        version = version(FileUtils.readString(new File(srcMainResourcesDirectory(), "BLD_VERSION")));
+
+        javaRelease = 17;
+        downloadSources = true;
+        autoDownloadPurge = true;
+
+        repositories = List.of(MAVEN_CENTRAL, RIFE2_RELEASES);
+        scope(test)
+            .include(dependency("org.slf4j", "slf4j-simple", version(2,0,7)))
+            .include(dependency("net.imagej", "ij", version("1.54d")))
+            .include(dependency("org.junit.jupiter", "junit-jupiter", version(5,9,3)))
+            .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1,9,3)))
+            .include(dependency("com.h2database", "h2", version(2,1,214)))
+            .include(dependency("net.sourceforge.htmlunit", "htmlunit", version(2,70,0)))
+            .include(dependency("org.postgresql", "postgresql", version(42,6,0)))
+            .include(dependency("com.mysql", "mysql-connector-j", version(8,0,33)))
+            .include(dependency("org.mariadb.jdbc", "mariadb-java-client", version(3,1,4)))
+            .include(dependency("org.hsqldb", "hsqldb", version(2,7,1)))
+            .include(dependency("org.apache.derby", "derby", version("10.16.1.1")))
+            .include(dependency("org.apache.derby", "derbytools", version("10.16.1.1")))
+            .include(dependency("com.oracle.database.jdbc", "ojdbc11", version("23.2.0.0")))
+            .include(dependency("org.json", "json", version(20230227)));
+
+        cleanOperation()
+            .directories(
+                new File(workDirectory(), "embedded_dbs"),
+                new File(workDirectory(), "logs"));
+
+        var core_directory = new File(workDirectory(), "core");
+        var core_src_directory = new File(core_directory, "src");
+        var core_src_main_directory = new File(core_src_directory, "main");
+        var core_src_main_java_directory = new File(core_src_main_directory, "java");
+        var core_src_main_resources_directory = new File(core_src_main_directory, "resources");
+        var core_src_test_directory = new File(core_src_directory, "test");
+        var core_src_test_java_directory = new File(core_src_test_directory, "java");
+        var core_src_test_resources_directory = new File(core_src_test_directory, "resources");
+        var core_src_main_resources_templates_directory = new File(core_src_main_resources_directory, "templates");
+
+        antlr4Operation
+            .sourceDirectories(List.of(new File(core_src_main_directory, "antlr")))
+            .outputDirectory(new File(buildDirectory(), "generated/rife/template/antlr"))
+            .visitor()
+            .longMessages();
+
+        precompileOperation()
+            .sourceDirectories(core_src_main_resources_templates_directory)
+            .templateTypes(HTML, XML, SQL, TXT, JSON);
+
+        compileOperation()
+            .mainSourceDirectories(antlr4Operation.outputDirectory(), core_src_main_java_directory)
+            .testSourceDirectories(core_src_test_java_directory)
+            .compileOptions()
+                .debuggingInfo(JavacOptions.DebuggingInfo.ALL);
+
+        jarOperation()
+            .sourceDirectories(core_src_main_resources_directory)
+            .excluded(Pattern.compile("^\\Q" + core_src_main_resources_templates_directory.getAbsolutePath() + "\\E.*"))
+            .manifestAttribute(Attributes.Name.MAIN_CLASS, mainClass());
+
+        zipBldOperation
+            .destinationDirectory(buildDistDirectory())
+            .destinationFileName("rife2-" + version() + "-bld.zip");
+
+        testsBadgeOperation
+            .classpath(core_src_main_resources_directory.getAbsolutePath())
+            .classpath(core_src_test_resources_directory.getAbsolutePath());
+        propagateJavaProperties(testsBadgeOperation.javaOptions(),
+            "test.postgres",
+            "test.mysql",
+            "test.mariadb",
+            "test.oracle",
+            "test.oracle-free",
+            "test.derby",
+            "test.hsqldb",
+            "test.h2");
+
+        javadocOperation()
+            .excluded(
+                "rife/antlr/",
+                "rife/asm/",
+                "rife/.*/databasedrivers/",
+                "rife/.*/imagestoredrivers/",
+                "rife/.*/rawstoredrivers/",
+                "rife/.*/textstoredrivers/",
+                "rife/database/capabilities/"
+            )
+            .javadocOptions()
+                .docTitle("<a href=\"https://rife2.com/bld\">bld</a> " + version())
+                .docLint(NO_MISSING)
+                .keywords()
+                .splitIndex()
+                .tag("apiNote", "a", "API Note:")
+                .link("https://jakarta.ee/specifications/servlet/5.0/apidocs/")
+                .link("https://jsoup.org/apidocs/")
+                .overview(new File(srcMainJavaDirectory(), "overview.html"));
+
+        publishOperation()
+            .repository(version.isSnapshot() ? repository("rife2-snapshots") : repository("rife2-releases"))
+            .repository(version.isSnapshot() ? repository("sonatype-snapshots") : repository("sonatype-releases"))
+            .info(new PublishInfo()
+                .groupId("com.uwyn.rife2")
+                .artifactId("bld")
+                .name("bld")
+                .description("Pure java build tool for developers who don't like dealing with build tools.")
+                .url("https://github.com/rife2/bld")
+                .developer(new PublishDeveloper()
+                    .id("gbevin")
+                    .name("Geert Bevin")
+                    .email("gbevin@uwyn.com")
+                    .url("https://github.com/gbevin"))
+                .license(new PublishLicense()
+                    .name("The Apache License, Version 2.0")
+                    .url("https://www.apache.org/licenses/LICENSE-2.0.txt"))
+                .scm(new PublishScm()
+                    .connection("scm:git:https://github.com/rife2/bld.git")
+                    .developerConnection("scm:git:git@github.com:rife2/bld.git")
+                    .url("https://github.com/rife2/bld"))
+                .signKey(property("sign.key"))
+                .signPassphrase(property("sign.passphrase")))
+            .artifacts(
+                new PublishArtifact(zipBldOperation.destinationFile(), "bld", "zip"));
+    }
+
+    void propagateJavaProperties(JavaOptions options, String... names) {
+        for (var name : names) {
+            if (properties().contains(name)) {
+                options.property(name, properties().getValueString(name));
+            }
+        }
+    }
+
+    final Antlr4Operation antlr4Operation = new Antlr4Operation() {
+        @Override
+        public void execute()
+        throws Exception {
+            super.execute();
+            // replace the package name so that it becomes part of RIFE2
+            FileUtils.transformFiles(outputDirectory(), FileUtils.JAVA_FILE_PATTERN, null, s ->
+                StringUtils.replace(s, "org.antlr.v4.runtime", "rife.antlr.v4.runtime"));
+        }
+    };
+    @BuildCommand(summary = "Generates the grammar Java sources")
+    public void generateGrammar()
+    throws Exception {
+        antlr4Operation.executeOnce();
+    }
+
+    public void compile()
+    throws Exception {
+        generateGrammar();
+        super.compile();
+    }
+
+    final ZipOperation zipBldOperation = new ZipOperation();
+    @BuildCommand(value = "zip-bld", summary = "Creates the bld zip archive")
+    public void zipBld()
+    throws Exception {
+        jar();
+        var tmp = Files.createTempDirectory("bld").toFile();
+        try {
+            new Wrapper().createWrapperFiles(path(tmp, "lib").toFile(), VersionNumber.UNKNOWN.toString());
+            new DirBuilder(tmp, t -> {
+                t.dir("bld", b -> {
+                    b.dir("bin", i -> {
+                        i.file("bld", f -> {
+                            f.copy(path(srcMainDirectory(), "bld", "bld"));
+                            f.perms(0755);
+                        });
+                        i.file("bld.bat", f -> {
+                            f.copy(path(srcMainDirectory(), "bld", "bld.bat"));
+                            f.perms(0755);
+                        });
+                    });
+                    b.dir("lib", l -> {
+                        l.file("bld-wrapper.jar", f -> f.move(path(tmp, "lib", "bld-wrapper.jar")));
+                    });
+                });
+                t.dir("lib", l -> l.delete());
+            });
+
+            zipBldOperation
+                .sourceDirectories(tmp)
+                .execute();
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    private final TestsBadgeOperation testsBadgeOperation = new TestsBadgeOperation();
+    public void test()
+    throws Exception {
+        testsBadgeOperation.executeOnce(() -> testsBadgeOperation
+            .url(property("testsBadgeUrl"))
+            .apiKey(property("testsBadgeApiKey"))
+            .fromProject(this));
+    }
+
+    @BuildCommand(summary = "Creates all the distribution artifacts")
+    public void all()
+    throws Exception {
+        jar();
+        jarSources();
+        jarJavadoc();
+        zipBld();
+    }
+
+    public void publish()
+    throws Exception {
+        all();
+        super.publish();
+    }
+
+    public static void main(String[] args)
+    throws Exception {
+        new BldBuild().start(args);
+    }
+}
\ No newline at end of file
diff --git a/src/main/bld/bld b/src/main/bld/bld
new file mode 100755
index 0000000..206ddea
--- /dev/null
+++ b/src/main/bld/bld
@@ -0,0 +1,2 @@
+#!/usr/bin/env sh
+java -jar "$(dirname "$0")/../lib/bld-wrapper.jar" "$0" "$@"
\ No newline at end of file
diff --git a/src/main/bld/bld.bat b/src/main/bld/bld.bat
new file mode 100644
index 0000000..d7d6080
--- /dev/null
+++ b/src/main/bld/bld.bat
@@ -0,0 +1,4 @@
+@echo off
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+java -jar "%DIRNAME%/../lib/bld-wrapper.jar" "%0" %*
\ No newline at end of file
diff --git a/src/main/java/rife/bld/BaseProject.java b/src/main/java/rife/bld/BaseProject.java
new file mode 100644
index 0000000..d379ae0
--- /dev/null
+++ b/src/main/java/rife/bld/BaseProject.java
@@ -0,0 +1,1608 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+import rife.bld.dependencies.*;
+import rife.bld.help.*;
+import rife.bld.operations.*;
+import rife.tools.FileUtils;
+import rife.tools.StringUtils;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import java.io.File;
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.*;
+import java.util.regex.Pattern;
+
+import static rife.bld.dependencies.Scope.runtime;
+import static rife.tools.FileUtils.JAR_FILE_PATTERN;
+
+/**
+ * Provides the base configuration and commands of a Java project for the
+ * build system.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.20
+ */
+public class BaseProject extends BuildExecutor {
+    /**
+     * The work directory of the project.
+     *
+     * @see #workDirectory()
+     * @since 1.5
+     */
+    protected File workDirectory = new File(System.getProperty("user.dir"));
+    /**
+     * The project's package.
+     *
+     * @see #pkg()
+     * @since 1.5
+     */
+    protected String pkg = null;
+    /**
+     * The project's name.
+     *
+     * @see #name()
+     * @since 1.5
+     */
+    protected String name = null;
+    /**
+     * The project's version.
+     *
+     * @see #version()
+     * @since 1.5
+     */
+    protected VersionNumber version = null;
+    /**
+     * The project's main class.
+     *
+     * @see #mainClass()
+     * @since 1.5
+     */
+    protected String mainClass = null;
+
+    /**
+     * The project's repositories for dependency resolution.
+     *
+     * @see #repositories()
+     * @since 1.5
+     */
+    protected List<Repository> repositories = new ArrayList<>();
+    /**
+     * The project's dependencies.
+     *
+     * @see #dependencies()
+     * @since 1.5
+     */
+    protected DependencyScopes dependencies = new DependencyScopes();
+
+    /**
+     * The project's Java release version for compilation.
+     *
+     * @see #javaRelease()
+     * @since 1.5.6
+     */
+    protected Integer javaRelease = null;
+    /**
+     * The tool that is used for running the java main class.
+     *
+     * @see #javaTool()
+     * @since 1.5
+     */
+    protected String javaTool = null;
+    /**
+     * The base name that is used for creating archives.
+     *
+     * @see #archiveBaseName()
+     * @since 1.5
+     */
+    protected String archiveBaseName = null;
+    /**
+     * The filename to use for the main jar archive creation.
+     *
+     * @see #jarFileName()
+     * @since 1.5
+     */
+    protected String jarFileName = null;
+    /**
+     * The filename to use for the sources jar archive creation.
+     *
+     * @see #sourcesJarFileName()
+     * @since 1.5.10
+     */
+    protected String sourcesJarFileName = null;
+    /**
+     * The filename to use for the javadoc jar archive creation.
+     *
+     * @see #javadocJarFileName()
+     * @since 1.5.10
+     */
+    protected String javadocJarFileName = null;
+    /**
+     * The filename to use for the uber jar archive creation.
+     *
+     * @see #uberJarFileName()
+     * @since 1.5
+     */
+    protected String uberJarFileName = null;
+    /**
+     * The main class to run the UberJar with.
+     *
+     * @see #uberJarMainClass()
+     * @since 1.5
+     */
+    protected String uberJarMainClass = null;
+    /**
+     * Indicates whether dependencies should be automatically downloaded and purged when changes are detected.
+     *
+     * @see #autoDownloadPurge()
+     * @since 1.5.16
+     */
+    protected Boolean autoDownloadPurge = null;
+    /**
+     * Indicates whether sources should be downloaded for the dependencies.
+     *
+     * @see #downloadSources()
+     * @since 1.5.6
+     */
+    protected Boolean downloadSources = null;
+    /**
+     * Indicates whether javadocs should be downloaded for the dependencies.
+     *
+     * @see #downloadJavadoc()
+     * @since 1.5.6
+     */
+    protected Boolean downloadJavadoc = null;
+
+    /**
+     * The source code directory.
+     *
+     * @see #srcDirectory()
+     * @since 1.5
+     */
+    protected File srcDirectory = null;
+    /**
+     * The bld source code directory.
+     *
+     * @see #srcBldDirectory()
+     * @since 1.5
+     */
+    protected File srcBldDirectory = null;
+    /**
+     * The bld java source code directory.
+     *
+     * @see #srcBldJavaDirectory()
+     * @since 1.5
+     */
+    protected File srcBldJavaDirectory = null;
+    /**
+     * The bld resources source code directory.
+     *
+     * @see #srcBldResourcesDirectory()
+     * @since 1.5.6
+     */
+    protected File srcBldResourcesDirectory = null;
+    /**
+     * The main source code directory.
+     *
+     * @see #srcMainDirectory()
+     * @since 1.5
+     */
+    protected File srcMainDirectory = null;
+    /**
+     * The main java source code directory.
+     *
+     * @see #srcMainJavaDirectory()
+     * @since 1.5
+     */
+    protected File srcMainJavaDirectory = null;
+    /**
+     * The main resources source code directory.
+     *
+     * @see #srcMainResourcesDirectory()
+     * @since 1.5
+     */
+    protected File srcMainResourcesDirectory = null;
+    /**
+     * The main template resources source code directory.
+     *
+     * @see #srcMainResourcesTemplatesDirectory()
+     * @since 1.5
+     */
+    protected File srcMainResourcesTemplatesDirectory = null;
+    /**
+     * The test source code directory.
+     *
+     * @see #srcTestDirectory()
+     * @since 1.5
+     */
+    protected File srcTestDirectory = null;
+    /**
+     * The test java source code directory.
+     *
+     * @see #srcTestJavaDirectory()
+     * @since 1.5
+     */
+    protected File srcTestJavaDirectory = null;
+    /**
+     * The test resources source code directory.
+     *
+     * @see #srcTestResourcesDirectory()
+     * @since 1.5.18
+     */
+    protected File srcTestResourcesDirectory = null;
+    /**
+     * The lib directory.
+     *
+     * @see #libDirectory()
+     * @since 1.5
+     */
+    protected File libDirectory = null;
+    /**
+     * The compile scope lib directory.
+     *
+     * @see #libCompileDirectory()
+     * @since 1.5
+     */
+    protected File libCompileDirectory = null;
+    /**
+     * The runtime scope lib directory.
+     *
+     * @see #libRuntimeDirectory()
+     * @since 1.5
+     */
+    protected File libRuntimeDirectory = null;
+    /**
+     * The standalone scope lib directory.
+     *
+     * @see #libStandaloneDirectory()
+     * @since 1.5
+     */
+    protected File libStandaloneDirectory = null;
+    /**
+     * The standalone scope lib directory.
+     *
+     * @see #libTestDirectory()
+     * @since 1.5
+     */
+    protected File libTestDirectory = null;
+    /**
+     * The build directory.
+     *
+     * @see #buildDirectory()
+     * @since 1.5
+     */
+    protected File buildDirectory = null;
+    /**
+     * The bld build directory.
+     *
+     * @see #buildBldDirectory()
+     * @since 1.5
+     */
+    protected File buildBldDirectory = null;
+    /**
+     * The dist build directory.
+     *
+     * @see #buildDistDirectory()
+     * @since 1.5
+     */
+    protected File buildDistDirectory = null;
+    /**
+     * The javadoc build directory.
+     *
+     * @see #buildJavadocDirectory()
+     * @since 1.5.10
+     */
+    protected File buildJavadocDirectory = null;
+    /**
+     * The main build directory.
+     *
+     * @see #buildMainDirectory()
+     * @since 1.5
+     */
+    protected File buildMainDirectory = null;
+    /**
+     * The templates build directory.
+     *
+     * @see #buildTemplatesDirectory()
+     * @since 1.5
+     */
+    protected File buildTemplatesDirectory = null;
+    /**
+     * The test build directory.
+     *
+     * @see #buildTestDirectory()
+     * @since 1.5
+     */
+    protected File buildTestDirectory = null;
+
+    /*
+     * Standard build commands
+     */
+
+    private final ArtifactRetriever retriever_ = ArtifactRetriever.cachingInstance();
+
+    /**
+     * Returns the artifact retriever that is used.
+     *
+     * @return the artifact retriever
+     * @since 1.5.21
+     */
+    public ArtifactRetriever artifactRetriever() {
+        return retriever_;
+    }
+
+    private final CleanOperation cleanOperation_ = new CleanOperation();
+    private final CompileOperation compileOperation_ = new CompileOperation();
+    private final DependencyTreeOperation dependencyTreeOperation_ = new DependencyTreeOperation();
+    private final DownloadOperation downloadOperation_ = new DownloadOperation();
+    private final PurgeOperation purgeOperation_ = new PurgeOperation();
+    private final PublishOperation publishOperation_ = new PublishOperation();
+    private final RunOperation runOperation_ = new RunOperation();
+    private final TestOperation<?, ?> testOperation_ = new TestOperation<>();
+    private final UpdatesOperation updatesOperation_ = new UpdatesOperation();
+    private final VersionOperation versionOperation_ = new VersionOperation();
+
+    /**
+     * Retrieves the project's default clean operation.
+     *
+     * @return the default clean operation instance
+     * @since 1.5.18
+     */
+    public CleanOperation cleanOperation() {
+        return cleanOperation_;
+    }
+
+    /**
+     * Retrieves the project's default compile operation.
+     *
+     * @return the default compile operation instance
+     * @since 1.5.18
+     */
+    public CompileOperation compileOperation() {
+        return compileOperation_;
+    }
+
+    /**
+     * Retrieves the project's default dependency tree operation.
+     *
+     * @return the default dependency tree operation instance
+     * @since 1.5.21
+     */
+    public DependencyTreeOperation dependencyTreeOperation() {
+        return dependencyTreeOperation_;
+    }
+
+    /**
+     * Retrieves the project's default download operation.
+     *
+     * @return the default download operation instance
+     * @since 1.5.18
+     */
+    public DownloadOperation downloadOperation() {
+        return downloadOperation_;
+    }
+
+    /**
+     * Retrieves the project's default publish operation.
+     *
+     * @return the default publish operation instance
+     * @since 1.5.18
+     */
+    public PublishOperation publishOperation() {
+        return publishOperation_;
+    }
+
+    /**
+     * Retrieves the project's default purge operation.
+     *
+     * @return the default purge operation instance
+     * @since 1.5.18
+     */
+    public PurgeOperation purgeOperation() {
+        return purgeOperation_;
+    }
+
+    /**
+     * Retrieves the project's default run operation.
+     *
+     * @return the default run operation instance
+     * @since 1.5.18
+     */
+    public RunOperation runOperation() {
+        return runOperation_;
+    }
+
+    /**
+     * Retrieves the project's default test operation.
+     *
+     * @return the default test operation instance
+     * @since 1.5.18
+     */
+    public TestOperation<?, ?> testOperation() {
+        return testOperation_;
+    }
+
+    /**
+     * Retrieves the project's default updates operation.
+     *
+     * @return the default updates operation instance
+     * @since 1.5.18
+     */
+    public UpdatesOperation updatesOperation() {
+        return updatesOperation_;
+    }
+
+    /**
+     * Retrieves the project's default version operation.
+     *
+     * @return the default version operation instance
+     * @since 1.5.18
+     */
+    public VersionOperation versionOperation() {
+        return versionOperation_;
+    }
+
+    /**
+     * Standard build command, cleans the build files.
+     *
+     * @since 1.5
+     */
+    @BuildCommand(help = CleanHelp.class)
+    public void clean()
+    throws Exception {
+        cleanOperation().executeOnce(() -> cleanOperation().fromProject(this));
+    }
+
+    /**
+     * Standard build command, compiles the project.
+     *
+     * @since 1.5
+     */
+    @BuildCommand(help = CompileHelp.class)
+    public void compile()
+    throws Exception {
+        compileOperation().executeOnce(() -> compileOperation().fromProject(this));
+    }
+
+    /**
+     * Standard build command, output the dependency tree.
+     *
+     * @since 1.5.21
+     */
+    @BuildCommand(value = "dependency-tree", help = DependencyTreeHelp.class)
+    public void dependencyTree()
+    throws Exception {
+        dependencyTreeOperation().executeOnce(() -> dependencyTreeOperation().fromProject(this));
+    }
+
+    /**
+     * Standard build command, downloads all dependencies of the project.
+     *
+     * @since 1.5
+     */
+    @BuildCommand(help = DownloadHelp.class)
+    public void download()
+    throws Exception {
+        downloadOperation().executeOnce(() -> downloadOperation().fromProject(this));
+    }
+
+    /**
+     * Standard build command, purges all unused artifacts from the project.
+     *
+     * @since 1.5
+     */
+    @BuildCommand(help = PurgeHelp.class)
+    public void purge()
+    throws Exception {
+        purgeOperation().executeOnce(() -> purgeOperation().fromProject(this));
+    }
+
+    /**
+     * Standard build command, runs the project.
+     *
+     * @since 1.5
+     */
+    @BuildCommand(help = RunHelp.class)
+    public void run()
+    throws Exception {
+        runOperation().executeOnce(() -> runOperation().fromProject(this));
+    }
+
+    /**
+     * Standard build command, tests the project.
+     *
+     * @since 1.5
+     */
+    @BuildCommand(help = TestHelp.class)
+    public void test()
+    throws Exception {
+        testOperation().executeOnce(() -> testOperation().fromProject(this));
+    }
+
+    /**
+     * Standard build command, outputs the version of the build system.
+     *
+     * @since 1.5.2
+     */
+    @BuildCommand(value = "version", help = VersionHelp.class)
+    public void printVersion()
+    throws Exception {
+        versionOperation().executeOnce();
+    }
+
+    /**
+     * Standard build command, checks for updates of the project dependencies.
+     *
+     * @since 1.5
+     */
+    @BuildCommand(help = UpdatesHelp.class)
+    public void updates()
+    throws Exception {
+        updatesOperation().executeOnce(() -> updatesOperation().fromProject(this));
+    }
+
+    /*
+     * Useful methods
+     */
+
+    private Dependency rife2Agent_ = null;
+
+    /**
+     * Includes the RIFE2 instrumentation agent as a runtime dependency,
+     * and activates it for run and test commands.
+     *
+     * @param version the version of the instrumentation agent to use
+     * @since 1.5.5
+     */
+    public void useRife2Agent(VersionNumber version) {
+        rife2Agent_ = new Dependency("com.uwyn.rife2", "rife2", version, "agent");
+        scope(runtime).include(rife2Agent_);
+    }
+
+    /**
+     * Indicates whether the RIFE2 instrumentation agent should be used.
+     *
+     * @return {@code true} if the RIFE2 instrumentation agent should be used; or
+     * {@code false} otherwise
+     * @since 1.5.18
+     */
+    public boolean usesRife2Agent() {
+        return rife2Agent_ != null;
+    }
+
+    /**
+     * Returns the jar file of the RIFE2 instrumentation agent that should be used.
+     *
+     * @return the jar file of the RIFE2 instrumentation agent; or
+     * {@code null} if no agent should be used
+     * @since 1.5.18
+     */
+    public File getRife2AgentFile() {
+        if (rife2Agent_ == null) {
+            return null;
+        }
+        return new File(libRuntimeDirectory(), rife2Agent_.toFileName());
+    }
+
+    /**
+     * Creates a new repository instance.
+     * <p>
+     * Instead of providing the repository location, it's also possible to provide a name
+     * that will be used to look up the repository credentials in the hierarchical
+     * properties.
+     * <p>
+     * For instance, using the name {@code myrepo} will look for the following properties:<br>
+     * {@code bld.repo.myrepo}<br>
+     * {@code bld.repo.myrepo.username} (optional)<br>
+     * {@code bld.repo.myrepo.password} (optional)
+     *
+     * @param locationOrName the repository location or name
+     * @return a newly created {@code Repository} instance
+     * @since 1.5.6
+     */
+    public Repository repository(String locationOrName) {
+        return Repository.resolveRepository(properties(), locationOrName);
+    }
+
+    /**
+     * Creates a new repository instance with basic username and password authentication.
+     *
+     * @param location the repository location
+     * @param username the repository username
+     * @param password the repository password
+     * @return a newly created {@code Repository} instance
+     * @since 1.5.7
+     */
+    public Repository repository(String location, String username, String password) {
+        return new Repository(location, username, password);
+    }
+
+    /**
+     * Creates a new version instance.
+     *
+     * @param major the major component of the version number
+     * @return a newly created {@code VersionNumber} instance
+     * @since 1.5
+     */
+    public VersionNumber version(int major) {
+        return new VersionNumber(major);
+    }
+
+    /**
+     * Creates a new version instance.
+     *
+     * @param major the major component of the version number
+     * @param minor the minor component of the version number
+     * @return a newly created {@code VersionNumber} instance
+     * @since 1.5
+     */
+    public VersionNumber version(int major, int minor) {
+        return new VersionNumber(major, minor);
+    }
+
+    /**
+     * Creates a new version instance.
+     *
+     * @param major    the major component of the version number
+     * @param minor    the minor component of the version number
+     * @param revision the revision component of the version number
+     * @return a newly created {@code VersionNumber} instance
+     * @since 1.5
+     */
+    public VersionNumber version(int major, int minor, int revision) {
+        return new VersionNumber(major, minor, revision);
+    }
+
+    /**
+     * Creates a new version instance.
+     *
+     * @param major     the major component of the version number
+     * @param minor     the minor component of the version number
+     * @param revision  the revision component of the version number
+     * @param qualifier the qualifier component of the version number
+     * @return a newly created {@code VersionNumber} instance
+     * @since 1.5
+     */
+    public VersionNumber version(int major, int minor, int revision, String qualifier) {
+        return new VersionNumber(major, minor, revision, qualifier);
+    }
+
+    /**
+     * Creates a new version instance.
+     *
+     * @param description the textual description of the version number
+     * @return a newly created {@code VersionNumber} instance; or
+     * {@link VersionNumber#UNKNOWN} if the description couldn't be parsed
+     * @since 1.5
+     */
+    public VersionNumber version(String description) {
+        return VersionNumber.parse(description);
+    }
+
+    /**
+     * Retrieves the dependency set for a particular scope, initializing it
+     * if it doesn't exist yet.
+     *
+     * @param scope the scope to retrieve dependencies for
+     * @return the scope's dependency set
+     * @since 1.5
+     */
+    public DependencySet scope(Scope scope) {
+        return dependencies().scope(scope);
+    }
+
+    /**
+     * Creates a new dependency instance.
+     *
+     * @param groupId    the dependency group identifier
+     * @param artifactId the dependency artifact identifier
+     * @return a newly created {@code Dependency} instance
+     * @since 1.5
+     */
+    public Dependency dependency(String groupId, String artifactId) {
+        return new Dependency(groupId, artifactId);
+    }
+
+    /**
+     * Creates a new dependency instance.
+     *
+     * @param groupId    the dependency group identifier
+     * @param artifactId the dependency artifact identifier
+     * @param version    the dependency version
+     * @return a newly created {@code Dependency} instance
+     * @since 1.5.16
+     */
+    public Dependency dependency(String groupId, String artifactId, String version) {
+        return new Dependency(groupId, artifactId, version(version));
+    }
+
+    /**
+     * Creates a new dependency instance.
+     *
+     * @param groupId    the dependency group identifier
+     * @param artifactId the dependency artifact identifier
+     * @param version    the dependency version
+     * @param classifier the dependency classifier
+     * @return a newly created {@code Dependency} instance
+     * @since 1.5.16
+     */
+    public Dependency dependency(String groupId, String artifactId, String version, String classifier) {
+        return new Dependency(groupId, artifactId, version(version), classifier);
+    }
+
+    /**
+     * Creates a new dependency instance.
+     *
+     * @param groupId    the dependency group identifier
+     * @param artifactId the dependency artifact identifier
+     * @param version    the dependency version
+     * @param classifier the dependency classifier
+     * @param type       the dependency type
+     * @return a newly created {@code Dependency} instance
+     * @since 1.5.16
+     */
+    public Dependency dependency(String groupId, String artifactId, String version, String classifier, String type) {
+        return new Dependency(groupId, artifactId, version(version), classifier, type);
+    }
+
+    /**
+     * Creates a new dependency instance.
+     *
+     * @param groupId    the dependency group identifier
+     * @param artifactId the dependency artifact identifier
+     * @param version    the dependency version
+     * @return a newly created {@code Dependency} instance
+     * @since 1.5
+     */
+    public Dependency dependency(String groupId, String artifactId, VersionNumber version) {
+        return new Dependency(groupId, artifactId, version);
+    }
+
+    /**
+     * Creates a new dependency instance.
+     *
+     * @param groupId    the dependency group identifier
+     * @param artifactId the dependency artifact identifier
+     * @param version    the dependency version
+     * @param classifier the dependency classifier
+     * @return a newly created {@code Dependency} instance
+     * @since 1.5
+     */
+    public Dependency dependency(String groupId, String artifactId, VersionNumber version, String classifier) {
+        return new Dependency(groupId, artifactId, version, classifier);
+    }
+
+    /**
+     * Creates a new dependency instance.
+     *
+     * @param groupId    the dependency group identifier
+     * @param artifactId the dependency artifact identifier
+     * @param version    the dependency version
+     * @param classifier the dependency classifier
+     * @param type       the dependency type
+     * @return a newly created {@code Dependency} instance
+     * @since 1.5
+     */
+    public Dependency dependency(String groupId, String artifactId, VersionNumber version, String classifier, String type) {
+        return new Dependency(groupId, artifactId, version, classifier, type);
+    }
+
+    /**
+     * Creates a new dependency instance from a string representation.
+     * The format is {@code groupId:artifactId:version:classifier@type}.
+     * The {@code version}, {@code classifier} and {@code type} are optional.
+     * <p>
+     * If the string can't be successfully parsed, {@code null} will be returned.
+     *
+     * @param description the dependency string to parse
+     * @return a parsed instance of {@code Dependency}; or
+     * {@code null} when the string couldn't be parsed
+     * @since 1.5.2
+     */
+    public Dependency dependency(String description) {
+        return Dependency.parse(description);
+    }
+
+    /**
+     * Creates a local dependency instance.
+     * <p>
+     * If the local dependency points to a directory, it will be scanned for jar files.
+     *
+     * @param path the file system path of the local dependency
+     * @since 1.5.2
+     */
+
+    public LocalDependency local(String path) {
+        return new LocalDependency(path);
+    }
+
+    /*
+     * Project directories
+     */
+
+    /**
+     * {@inheritDoc}
+     *
+     * @since 1.5
+     */
+    public File workDirectory() {
+        return Objects.requireNonNullElseGet(workDirectory, super::workDirectory);
+    }
+
+    /**
+     * Returns the project source code directory.
+     * Defaults to {@code "src"} relative to {@link #workDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File srcDirectory() {
+        return Objects.requireNonNullElseGet(srcDirectory, () -> new File(workDirectory(), "src"));
+    }
+
+    /**
+     * Returns the project bld source code directory.
+     * Defaults to {@code "bld"} relative to {@link #srcDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File srcBldDirectory() {
+        return Objects.requireNonNullElseGet(srcBldDirectory, () -> new File(srcDirectory(), "bld"));
+    }
+
+    /**
+     * Returns the project bld java source code directory.
+     * Defaults to {@code "java"} relative to {@link #srcBldDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File srcBldJavaDirectory() {
+        return Objects.requireNonNullElseGet(srcBldJavaDirectory, () -> new File(srcBldDirectory(), "java"));
+    }
+
+    /**
+     * Returns the project bld resources source code directory.
+     * Defaults to {@code "resources"} relative to {@link #srcMainDirectory()}.
+     *
+     * @since 1.5.5
+     */
+    public File srcBldResourcesDirectory() {
+        return Objects.requireNonNullElseGet(srcBldResourcesDirectory, () -> new File(srcBldDirectory(), "resources"));
+    }
+
+    /**
+     * Returns the project main source code directory.
+     * Defaults to {@code "main"} relative to {@link #srcDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File srcMainDirectory() {
+        return Objects.requireNonNullElseGet(srcMainDirectory, () -> new File(srcDirectory(), "main"));
+    }
+
+    /**
+     * Returns the project main java source code directory.
+     * Defaults to {@code "java"} relative to {@link #srcMainDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File srcMainJavaDirectory() {
+        return Objects.requireNonNullElseGet(srcMainJavaDirectory, () -> new File(srcMainDirectory(), "java"));
+    }
+
+    /**
+     * Returns the project main resources source code directory.
+     * Defaults to {@code "resources"} relative to {@link #srcMainDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File srcMainResourcesDirectory() {
+        return Objects.requireNonNullElseGet(srcMainResourcesDirectory, () -> new File(srcMainDirectory(), "resources"));
+    }
+
+    /**
+     * Returns the project main template resources source code directory.
+     * Defaults to {@code "templates"} relative to {@link #srcMainResourcesDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File srcMainResourcesTemplatesDirectory() {
+        return Objects.requireNonNullElseGet(srcMainResourcesTemplatesDirectory, () -> new File(srcMainResourcesDirectory(), "templates"));
+    }
+
+    /**
+     * Returns the project test source code directory.
+     * Defaults to {@code "test"} relative to {@link #srcDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File srcTestDirectory() {
+        return Objects.requireNonNullElseGet(srcTestDirectory, () -> new File(srcDirectory(), "test"));
+    }
+
+    /**
+     * Returns the project test resources source code directory.
+     * Defaults to {@code "resources"} relative to {@link #srcTestDirectory()}.
+     *
+     * @since 1.5.18
+     */
+    public File srcTestResourcesDirectory() {
+        return Objects.requireNonNullElseGet(srcTestResourcesDirectory, () -> new File(srcTestDirectory(), "resources"));
+    }
+
+    /**
+     * Returns the project test java source code directory.
+     * Defaults to {@code "java"} relative to {@link #srcTestDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File srcTestJavaDirectory() {
+        return Objects.requireNonNullElseGet(srcTestJavaDirectory, () -> new File(srcTestDirectory(), "java"));
+    }
+
+    /**
+     * Returns the project lib directory.
+     * Defaults to {@code "lib"} relative to {@link #workDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File libDirectory() {
+        return Objects.requireNonNullElseGet(libDirectory, () -> new File(workDirectory(), "lib"));
+    }
+
+    /**
+     * Returns the {@code lib/bld} directory relative to {@link #workDirectory()}.
+     *
+     * @since 1.5
+     */
+    public final File libBldDirectory() {
+        return new File(new File(workDirectory(), "lib"), "bld");
+    }
+
+    /**
+     * Returns the project compile scope lib directory.
+     * Defaults to {@code "compile"} relative to {@link #libDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File libCompileDirectory() {
+        return Objects.requireNonNullElseGet(libCompileDirectory, () -> new File(libDirectory(), "compile"));
+    }
+
+    /**
+     * Returns the project runtime scope lib directory.
+     * Defaults to {@code "runtime"} relative to {@link #libDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File libRuntimeDirectory() {
+        return Objects.requireNonNullElseGet(libRuntimeDirectory, () -> new File(libDirectory(), "runtime"));
+    }
+
+    /**
+     * Returns the project standalone scope lib directory.
+     * Defaults to {@code null}.
+     *
+     * @since 1.5
+     */
+    public File libStandaloneDirectory() {
+        return null;
+    }
+
+    /**
+     * Returns the project test scope lib directory.
+     * Defaults to {@code "test"} relative to {@link #libDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File libTestDirectory() {
+        return Objects.requireNonNullElseGet(libTestDirectory, () -> new File(libDirectory(), "test"));
+    }
+
+    /**
+     * Returns the project build directory.
+     * Defaults to {@code "build"} relative to {@link #workDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File buildDirectory() {
+        return Objects.requireNonNullElseGet(buildDirectory, () -> new File(workDirectory(), "build"));
+    }
+
+    /**
+     * Returns the project bld build directory.
+     * Defaults to {@code "bld"} relative to {@link #buildDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File buildBldDirectory() {
+        return Objects.requireNonNullElseGet(buildBldDirectory, () -> new File(buildDirectory(), "bld"));
+    }
+
+    /**
+     * Returns the project dist build directory.
+     * Defaults to {@code "dist"} relative to {@link #buildDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File buildDistDirectory() {
+        return Objects.requireNonNullElseGet(buildDistDirectory, () -> new File(buildDirectory(), "dist"));
+    }
+
+    /**
+     * Returns the project javadoc build directory.
+     * Defaults to {@code "javadoc"} relative to {@link #buildDirectory()}.
+     *
+     * @since 1.5.10
+     */
+    public File buildJavadocDirectory() {
+        return Objects.requireNonNullElseGet(buildJavadocDirectory, () -> new File(buildDirectory(), "javadoc"));
+    }
+
+    /**
+     * Returns the project main build directory.
+     * Defaults to {@code "main"} relative to {@link #buildDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File buildMainDirectory() {
+        return Objects.requireNonNullElseGet(buildMainDirectory, () -> new File(buildDirectory(), "main"));
+    }
+
+    /**
+     * Returns the project templates build directory.
+     * Defaults to {@link #buildMainDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File buildTemplatesDirectory() {
+        return Objects.requireNonNullElseGet(buildTemplatesDirectory, this::buildMainDirectory);
+    }
+
+    /**
+     * Returns the project test build directory.
+     * Defaults to {@code "test"} relative to {@link #buildDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File buildTestDirectory() {
+        return Objects.requireNonNullElseGet(buildTestDirectory, () -> new File(buildDirectory(), "test"));
+    }
+
+    /**
+     * Creates the project structure based on the directories that are specified in the other methods.
+     *
+     * @since 1.5
+     */
+    public void createProjectStructure() {
+        srcDirectory().mkdirs();
+        srcBldDirectory().mkdirs();
+        srcBldJavaDirectory().mkdirs();
+        srcBldResourcesDirectory().mkdirs();
+        srcMainDirectory().mkdirs();
+        srcMainJavaDirectory().mkdirs();
+        srcMainResourcesDirectory().mkdirs();
+        srcMainResourcesTemplatesDirectory().mkdirs();
+        srcTestDirectory().mkdirs();
+        srcTestJavaDirectory().mkdirs();
+        srcTestResourcesDirectory().mkdirs();
+        libDirectory().mkdirs();
+        libBldDirectory().mkdirs();
+        libCompileDirectory().mkdirs();
+        libRuntimeDirectory().mkdirs();
+        if (libStandaloneDirectory() != null) {
+            libStandaloneDirectory().mkdirs();
+        }
+        libTestDirectory().mkdirs();
+    }
+
+    /**
+     * Creates the project build structure based on the directories that are specified in the other methods.
+     *
+     * @since 1.5
+     */
+    public void createBuildStructure() {
+        buildDirectory().mkdirs();
+        buildBldDirectory().mkdirs();
+        buildDistDirectory().mkdirs();
+        buildJavadocDirectory().mkdirs();
+        buildMainDirectory().mkdirs();
+        buildTemplatesDirectory().mkdirs();
+        buildTestDirectory().mkdirs();
+    }
+
+    /*
+     * Project options
+     */
+
+    /**
+     * Returns the project's package.
+     *
+     * @since 1.5
+     */
+    public String pkg() {
+        if (pkg == null) {
+            throw new IllegalStateException("The pkg variable has to be set.");
+        }
+        return pkg;
+    }
+
+    /**
+     * Returns the project's name.
+     *
+     * @since 1.5
+     */
+    public String name() {
+        if (name == null) {
+            throw new IllegalStateException("The name variable has to be set.");
+        }
+        return name;
+    }
+
+    /**
+     * Returns the project's version.
+     *
+     * @since 1.5
+     */
+    public VersionNumber version() {
+        if (version == null) {
+            throw new IllegalStateException("The version variable has to be set.");
+        }
+        return version;
+    }
+
+    /**
+     * Returns the project's main class.
+     *
+     * @since 1.5
+     */
+    public String mainClass() {
+        if (mainClass == null) {
+            throw new IllegalStateException("The mainClass variable has to be set.");
+        }
+        return mainClass;
+    }
+
+    /**
+     * Returns the list of repositories for this project.
+     * <p>
+     * This list can be modified to change the repositories that the project uses.
+     *
+     * @since 1.5
+     */
+    public List<Repository> repositories() {
+        if (repositories == null) {
+            repositories = new ArrayList<>();
+        }
+        return repositories;
+    }
+
+    /**
+     * Adds repositories to this project.
+     *
+     * @param repositories the repositories to add
+     * @since 1.5.6
+     */
+    public void repositories(Repository... repositories) {
+        for (var repository : repositories) {
+            repositories().add(repository);
+        }
+    }
+
+    /**
+     * Returns the project's dependencies.
+     * <p>
+     * This collection can be modified to change the dependencies that the project uses.
+     *
+     * @since 1.5
+     */
+    public DependencyScopes dependencies() {
+        if (dependencies == null) {
+            dependencies = new DependencyScopes();
+        }
+        return dependencies;
+    }
+
+    /**
+     * Returns the java release targets for this project.
+     *
+     * @since 1.5.18
+     */
+    public Integer javaRelease() {
+        return javaRelease;
+    }
+
+    /**
+     * Returns the tool that is used for running the java main class.
+     *
+     * @since 1.5
+     */
+    public String javaTool() {
+        return Objects.requireNonNullElse(javaTool, "java");
+    }
+
+    /**
+     * Returns the base name that is used for creating archives.
+     * By default, this returns the lower-cased project name.
+     *
+     * @since 1.5
+     */
+    public String archiveBaseName() {
+        return Objects.requireNonNullElseGet(archiveBaseName, () -> name().toLowerCase(Locale.ENGLISH));
+    }
+
+    /**
+     * Returns the filename to use for the main jar archive creation.
+     * By default, appends the version and the {@code jar} extension to the {@link #archiveBaseName()}.
+     *
+     * @since 1.5
+     */
+    public String jarFileName() {
+        return Objects.requireNonNullElseGet(jarFileName, () -> archiveBaseName() + "-" + version() + ".jar");
+    }
+
+    /**
+     * Returns the filename to use for the sources jar archive creation.
+     * By default, appends the version, {@code "sources"} and the {@code jar} extension to the {@link #archiveBaseName()}.
+     *
+     * @since 1.5.10
+     */
+    public String sourcesJarFileName() {
+        return Objects.requireNonNullElseGet(sourcesJarFileName, () -> archiveBaseName() + "-" + version() + "-sources" + ".jar");
+    }
+
+    /**
+     * Returns the filename to use for the javadoc jar archive creation.
+     * By default, appends the version, {@code "javadoc"} and the {@code jar} extension to the {@link #archiveBaseName()}.
+     *
+     * @since 1.5.10
+     */
+    public String javadocJarFileName() {
+        return Objects.requireNonNullElseGet(javadocJarFileName, () -> archiveBaseName() + "-" + version() + "-javadoc" + ".jar");
+    }
+
+    /**
+     * Returns the filename to use for the uber jar archive creation.
+     * By default, appends the version, the {@code "-uber"} suffix and the {@code jar} extension to the {@link #archiveBaseName()}.
+     *
+     * @since 1.5
+     */
+    public String uberJarFileName() {
+        return Objects.requireNonNullElseGet(uberJarFileName, () -> archiveBaseName() + "-" + version() + "-uber.jar");
+    }
+
+    /**
+     * Returns main class to run the UberJar with.
+     * By default, returns the same as {@link #mainClass()}.
+     *
+     * @since 1.5
+     */
+    public String uberJarMainClass() {
+        return Objects.requireNonNullElseGet(uberJarMainClass, this::mainClass);
+    }
+
+    /**
+     * Indicates whether dependencies should be automatically downloaded and purged when changes are detected.
+     * By default, returns {@code false}.
+     *
+     * @since 1.5.6
+     */
+    public boolean autoDownloadPurge() {
+        return Objects.requireNonNullElse(autoDownloadPurge, Boolean.FALSE);
+    }
+
+    /**
+     * Returns whether sources should be downloaded for the dependencies.
+     * By default, returns {@code false}.
+     *
+     * @since 1.5.6
+     */
+    public boolean downloadSources() {
+        return Objects.requireNonNullElse(downloadSources, Boolean.FALSE);
+    }
+
+    /**
+     * Returns whether javadocs should be downloaded for the dependencies.
+     * By default, returns {@code false}.
+     *
+     * @since 1.5.6
+     */
+    public boolean downloadJavadoc() {
+        return Objects.requireNonNullElse(downloadJavadoc, Boolean.FALSE);
+    }
+
+    /*
+     * File collections
+     */
+
+    /**
+     * Returns all a list with all the main Java source files.
+     *
+     * @since 1.5
+     */
+    public List<File> mainSourceFiles() {
+        return FileUtils.getJavaFileList(srcMainJavaDirectory());
+    }
+
+    /**
+     * Returns all a list with all the test Java source files.
+     *
+     * @since 1.5
+     */
+    public List<File> testSourceFiles() {
+        return FileUtils.getJavaFileList(srcTestJavaDirectory());
+    }
+
+    /*
+     * Project classpaths
+     */
+
+    private static final Pattern JAR_EXCLUDE_SOURCES_PATTERN = Pattern.compile("^.*-sources\\.jar$", Pattern.CASE_INSENSITIVE);
+    private static final Pattern JAR_EXCLUDE_JAVADOC_PATTERN = Pattern.compile("^.*-javadoc\\.jar$", Pattern.CASE_INSENSITIVE);
+    private static final Pattern[] INCLUDED_JARS = new Pattern[]{JAR_FILE_PATTERN};
+    private static final Pattern[] EXCLUDED_JARS = new Pattern[]{JAR_EXCLUDE_SOURCES_PATTERN, JAR_EXCLUDE_JAVADOC_PATTERN};
+
+    /**
+     * Returns all the jar files that are in the compile scope classpath.
+     * <p>
+     * By default, this collects all the jar files in the {@link #libCompileDirectory()}
+     * and adds all the jar files from the compile scope local dependencies.
+     *
+     * @since 1.5
+     */
+    public List<File> compileClasspathJars() {
+        // detect the jar files in the compile lib directory
+        var dir_abs = libCompileDirectory().getAbsoluteFile();
+        var jar_files = FileUtils.getFileList(dir_abs, INCLUDED_JARS, EXCLUDED_JARS);
+
+        // build the compilation classpath
+        var classpath = new ArrayList<>(jar_files.stream().map(file -> new File(dir_abs, file)).toList());
+        addLocalDependencies(classpath, Scope.compile);
+        addLocalDependencies(classpath, Scope.provided);
+        return classpath;
+    }
+
+    /**
+     * Returns all the jar files that are in the runtime scope classpath.
+     * <p>
+     * By default, this collects all the jar files in the {@link #libRuntimeDirectory()}
+     * and adds all the jar files from the runtime scope local dependencies.
+     *
+     * @since 1.5
+     */
+    public List<File> runtimeClasspathJars() {
+        // detect the jar files in the runtime lib directory
+        var dir_abs = libRuntimeDirectory().getAbsoluteFile();
+        var jar_files = FileUtils.getFileList(dir_abs, INCLUDED_JARS, EXCLUDED_JARS);
+
+        // build the runtime classpath
+        var classpath = new ArrayList<>(jar_files.stream().map(file -> new File(dir_abs, file)).toList());
+        addLocalDependencies(classpath, Scope.runtime);
+        return classpath;
+    }
+
+    /**
+     * Returns all the jar files that are in the standalone scope classpath.
+     * <p>
+     * By default, this collects all the jar files in the {@link #libStandaloneDirectory()}
+     * and adds all the jar files from the standalone scope local dependencies.
+     *
+     * @since 1.5
+     */
+    public List<File> standaloneClasspathJars() {
+        // build the standalone classpath
+        List<File> classpath;
+        if (libStandaloneDirectory() == null) {
+            classpath = new ArrayList<>();
+        } else {
+            // detect the jar files in the standalone lib directory
+            var dir_abs = libStandaloneDirectory().getAbsoluteFile();
+            var jar_files = FileUtils.getFileList(dir_abs, INCLUDED_JARS, EXCLUDED_JARS);
+
+            classpath = new ArrayList<>(jar_files.stream().map(file -> new File(dir_abs, file)).toList());
+        }
+        addLocalDependencies(classpath, Scope.standalone);
+        return classpath;
+    }
+
+    /**
+     * Returns all the jar files that are in the test scope classpath.
+     * <p>
+     * By default, this collects all the jar files in the {@link #libTestDirectory()}
+     * and adds all the jar files from the test scope local dependencies.
+     *
+     * @since 1.5
+     */
+    public List<File> testClasspathJars() {
+        // detect the jar files in the test lib directory
+        var dir_abs = libTestDirectory().getAbsoluteFile();
+        var jar_files = FileUtils.getFileList(dir_abs, INCLUDED_JARS, EXCLUDED_JARS);
+
+        // build the test classpath
+        var classpath = new ArrayList<>(jar_files.stream().map(file -> new File(dir_abs, file)).toList());
+        addLocalDependencies(classpath, Scope.test);
+        return classpath;
+    }
+
+    private void addLocalDependencies(List<File> classpath, Scope scope) {
+        if (dependencies.get(scope) == null) {
+            return;
+        }
+
+        for (var dependency : dependencies.get(scope).localDependencies()) {
+            var local_file = new File(workDirectory(), dependency.path());
+            if (local_file.exists()) {
+                if (local_file.isDirectory()) {
+                    var local_jar_files = FileUtils.getFileList(local_file.getAbsoluteFile(), INCLUDED_JARS, EXCLUDED_JARS);
+                    classpath.addAll(new ArrayList<>(local_jar_files.stream().map(file -> new File(local_file, file)).toList()));
+                } else {
+                    classpath.add(local_file);
+                }
+            }
+        }
+    }
+
+    /**
+     * Returns all the classpath entries for compiling the main sources.
+     * <p>
+     * By default, this converts the files from {@link #compileClasspathJars()} to absolute paths.
+     *
+     * @since 1.5
+     */
+    public List<String> compileMainClasspath() {
+        return FileUtils.combineToAbsolutePaths(compileClasspathJars());
+    }
+
+    /**
+     * Returns all the classpath entries for compiling the test sources.
+     * <p>
+     * By default, this converts the files from {@link #compileClasspathJars()} and
+     * {@link #testClasspathJars()} to absolute paths, as well as the {@link #buildMainDirectory()}
+     *
+     * @since 1.5
+     */
+    public List<String> compileTestClasspath() {
+        var paths = new ArrayList<String>();
+        paths.add(buildMainDirectory().getAbsolutePath());
+        paths.addAll(FileUtils.combineToAbsolutePaths(compileClasspathJars(), testClasspathJars()));
+        return paths;
+    }
+
+    /**
+     * Returns all the classpath entries for running the application.
+     * <p>
+     * By default, this converts the files from {@link #compileClasspathJars()},
+     * {@link #runtimeClasspathJars()} and {@link #standaloneClasspathJars()} to absolute paths,
+     * as well as the {@link #srcMainResourcesDirectory()} and {@link #buildMainDirectory()}
+     *
+     * @since 1.5
+     */
+    public List<String> runClasspath() {
+        var paths = new ArrayList<String>();
+        paths.add(srcMainResourcesDirectory().getAbsolutePath());
+        paths.add(buildMainDirectory().getAbsolutePath());
+        paths.addAll(FileUtils.combineToAbsolutePaths(compileClasspathJars(), runtimeClasspathJars(), standaloneClasspathJars()));
+        return paths;
+    }
+
+    /**
+     * Returns all the classpath entries for testing the application.
+     * <p>
+     * By default, this converts the files from {@link #compileClasspathJars()},
+     * {@link #runtimeClasspathJars()}  and {@link #testClasspathJars()}
+     * to absolute paths, as well as the {@link #srcMainResourcesDirectory()},
+     * {@link #buildMainDirectory()} and {@link #buildTestDirectory()}
+     *
+     * @since 1.5
+     */
+    public List<String> testClasspath() {
+        var paths = new ArrayList<String>();
+        paths.add(srcMainResourcesDirectory().getAbsolutePath());
+        paths.add(srcTestResourcesDirectory().getAbsolutePath());
+        paths.add(buildMainDirectory().getAbsolutePath());
+        paths.add(buildTestDirectory().getAbsolutePath());
+        paths.addAll(FileUtils.combineToAbsolutePaths(compileClasspathJars(), runtimeClasspathJars(), standaloneClasspathJars(), testClasspathJars()));
+        return paths;
+    }
+
+    /**
+     * Executes download and purge commands automatically when the
+     * {@code autoDownloadPurge} flag is set and changes have been detected.
+     *
+     * @throws Exception when an exception occurs during the auto download purge operation
+     * @since 1.6.0
+     */
+    public void executeAutoDownloadPurge()
+    throws Exception {
+        download();
+        purge();
+    }
+
+    private static final String BLD_BUILD_HASH = "bld-build.hash";
+
+    private void performAutoDownloadPurge() {
+        // verify and update the fingerprint hash file,
+        // don't download and purge if the hash is identical
+        var hash_file = new File(libBldDirectory(), BLD_BUILD_HASH);
+        var hash = createHash();
+        if (validateHash(hash_file, hash)) {
+            return;
+        }
+
+        try {
+            executeAutoDownloadPurge();
+
+            writeHash(hash_file, hash);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private String createHash() {
+        var finger_print = new StringBuilder();
+        for (var repository : repositories()) {
+            finger_print.append(repository.toString());
+            finger_print.append("\n");
+        }
+        for (var entry : dependencies().entrySet()) {
+            finger_print.append(entry.getKey());
+            finger_print.append("\n");
+            if (entry.getValue() != null) {
+                for (var dependency : entry.getValue()) {
+                    finger_print.append(dependency.toString());
+                    finger_print.append("\n");
+                }
+            }
+        }
+        finger_print.append(downloadSources());
+        finger_print.append("\n");
+        finger_print.append(downloadJavadoc());
+        finger_print.append("\n");
+
+        try {
+            var digest = MessageDigest.getInstance("SHA-1");
+            digest.update(finger_print.toString().getBytes(StandardCharsets.UTF_8));
+            return StringUtils.encodeHexLower(digest.digest());
+        } catch (NoSuchAlgorithmException e) {
+            // should not happen
+            throw new RuntimeException(e);
+        }
+    }
+
+    private boolean validateHash(File hashFile, String hash) {
+        try {
+            if (hashFile.exists()) {
+                var current_hash = FileUtils.readString(hashFile);
+                if (current_hash.equals(hash)) {
+                    return true;
+                }
+                hashFile.delete();
+            }
+            return false;
+        } catch (FileUtilsErrorException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private void writeHash(File hashFile, String hash) {
+        try {
+            hashFile.getParentFile().mkdirs();
+            FileUtils.writeString(hash, hashFile);
+        } catch (FileUtilsErrorException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public int execute(String[] arguments) {
+        if (autoDownloadPurge()) {
+            performAutoDownloadPurge();
+        }
+
+        return super.execute(arguments);
+    }
+}
diff --git a/src/main/java/rife/bld/BldVersion.java b/src/main/java/rife/bld/BldVersion.java
new file mode 100644
index 0000000..5f5ec47
--- /dev/null
+++ b/src/main/java/rife/bld/BldVersion.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+import rife.resources.ResourceFinderClasspath;
+import rife.resources.exceptions.ResourceFinderErrorException;
+
+/**
+ * Singleton class that provides access to the current RIFE2 version as a string.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.0
+ */
+public class BldVersion {
+    private String version_;
+
+    BldVersion() {
+        ResourceFinderClasspath resource_finder = ResourceFinderClasspath.instance();
+        try {
+            version_ = resource_finder.getContent("BLD_VERSION");
+        } catch (ResourceFinderErrorException e) {
+            version_ = null;
+        }
+
+        if (version_ != null) {
+            version_ = version_.trim();
+        }
+        if (null == version_) {
+            version_ = "unknown version";
+        }
+    }
+
+    private String getVersionString() {
+        return version_;
+    }
+
+    public static String getVersion() {
+        return BldVersionSingleton.INSTANCE.getVersionString();
+    }
+}
+
diff --git a/src/main/java/rife/bld/BldVersionSingleton.java b/src/main/java/rife/bld/BldVersionSingleton.java
new file mode 100644
index 0000000..9052123
--- /dev/null
+++ b/src/main/java/rife/bld/BldVersionSingleton.java
@@ -0,0 +1,14 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+/**
+ * Helper class to avoid Double Check Locking
+ * and still have a thread-safe singleton pattern
+ */
+class BldVersionSingleton {
+    static final BldVersion INSTANCE = new BldVersion();
+}
+
diff --git a/src/main/java/rife/bld/BuildCommand.java b/src/main/java/rife/bld/BuildCommand.java
new file mode 100644
index 0000000..63db244
--- /dev/null
+++ b/src/main/java/rife/bld/BuildCommand.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+import java.lang.annotation.*;
+
+/**
+ * Declares a {@link BuildExecutor} method to be used as a build command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.METHOD})
+@Documented
+public @interface BuildCommand {
+    /**
+     * When provided, specifies a name for the build command that can be
+     * different from the method name.
+     *
+     * @return a string representing the build command name
+     * @since 1.5
+     */
+    String value() default "";
+
+    /**
+     * When provided, specifies a short description about the command.
+     *
+     * @return the short summary, defaults to {@code ""}
+     * @since 1.5.12
+     */
+    String summary() default "";
+
+    /**
+     * When provided, specifies the full help description of a command.
+     *
+     * @return the full help description, defaults to {@code ""}
+     * @since 1.5.12
+     */
+    String description() default "";
+
+    /**
+     * When provided, specifies a class that provides help about the
+     * build command.
+     *
+     * @return a class providing help information
+     * @since 1.5
+     */
+    Class<? extends CommandHelp> help() default CommandHelp.class;
+}
diff --git a/src/main/java/rife/bld/BuildExecutor.java b/src/main/java/rife/bld/BuildExecutor.java
new file mode 100644
index 0000000..5098a78
--- /dev/null
+++ b/src/main/java/rife/bld/BuildExecutor.java
@@ -0,0 +1,467 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+import rife.bld.dependencies.DependencyResolver;
+import rife.bld.dependencies.Repository;
+import rife.bld.help.HelpHelp;
+import rife.bld.operations.HelpOperation;
+import rife.bld.operations.exceptions.ExitStatusException;
+import rife.ioc.HierarchicalProperties;
+import rife.tools.ExceptionUtils;
+
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.*;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.logging.Logger;
+import java.util.regex.Pattern;
+
+/**
+ * Base class that executes build commands from a list of arguments.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @see BuildCommand
+ * @see CommandDefinition
+ * @since 1.5
+ */
+public class BuildExecutor {
+    public static final File RIFE2_USER_DIR = new File(System.getProperty("user.home"), ".rife2");
+    public static final String BLD_PROPERTIES = "bld.properties";
+    public static final String LOCAL_PROPERTIES = "local.properties";
+
+    private static final String ARG_HELP1 = "--help";
+    private static final String ARG_HELP2 = "-h";
+    private static final String ARG_HELP3 = "-?";
+    private static final String ARG_STACKTRACE1 = "--stacktrace";
+    private static final String ARG_STACKTRACE2 = "-s";
+
+    private final HierarchicalProperties properties_;
+    private List<String> arguments_ = Collections.emptyList();
+    private Map<String, CommandDefinition> buildCommands_ = null;
+    private final AtomicReference<String> currentCommandName_ = new AtomicReference<>();
+    private final AtomicReference<CommandDefinition> currentCommandDefinition_ = new AtomicReference<>();
+    private int exitStatus_ = 0;
+
+    /**
+     * Show the full Java stacktrace when exceptions occur, as opposed
+     * to the chain of messages.
+     * <p>
+     * Defaults to {@code false}, can be set to {@code true} by setting
+     * through code or by adding {@code --stacktrace} as a CLI argument.
+     *
+     * @since 1.5.19
+     */
+    protected boolean showStacktrace = false;
+
+    /**
+     * Creates a new build executor instance.
+     *
+     * @since 1.5
+     */
+    public BuildExecutor() {
+        properties_ = setupProperties(workDirectory());
+        Repository.resolveMavenLocal(properties());
+    }
+
+    /**
+     * Creates a properties hierarchy for bld execution.
+     *
+     * @param workDirectory the directory where the project build files are location
+     * @return the properties hierarchy
+     * @since 1.5.12
+     */
+    public static HierarchicalProperties setupProperties(File workDirectory) {
+        var system_properties = HierarchicalProperties.createSystemInstance();
+
+        var java_properties = system_properties;
+        system_properties = java_properties.getParent();
+
+        HierarchicalProperties bld_properties = null;
+        HierarchicalProperties local_properties = null;
+
+        var bld_properties_file = new File(RIFE2_USER_DIR, BLD_PROPERTIES);
+        if (bld_properties_file.exists() && bld_properties_file.isFile() && bld_properties_file.canRead()) {
+            try {
+                var bld = new Properties();
+                bld.load(new FileReader(bld_properties_file));
+                bld_properties = new HierarchicalProperties();
+                bld_properties.putAll(bld);
+
+                bld_properties.parent(system_properties);
+            } catch (IOException e) {
+                Logger.getLogger("rife.bld").warning("Unable to parse " + bld_properties_file + " as a properties file:\n" + e.getMessage());
+            }
+        }
+
+        var local_properties_file = new File(workDirectory, LOCAL_PROPERTIES);
+        if (local_properties_file.exists() && local_properties_file.isFile() && local_properties_file.canRead()) {
+            try {
+                var local = new Properties();
+                local.load(new FileReader(local_properties_file));
+                local_properties = new HierarchicalProperties();
+                local_properties.putAll(local);
+
+                local_properties.parent(Objects.requireNonNullElse(bld_properties, system_properties));
+            } catch (IOException e) {
+                Logger.getLogger("rife.bld").warning("Unable to parse " + local_properties_file + " as a properties file:\n" + e.getMessage());
+            }
+        }
+
+        java_properties.parent(
+            Objects.requireNonNullElse(local_properties,
+                Objects.requireNonNullElse(bld_properties, system_properties)));
+
+        final HierarchicalProperties properties = new HierarchicalProperties();
+        properties.parent(java_properties);
+        return properties;
+    }
+
+    /**
+     * Returns the properties uses by this conversation.
+     *
+     * @return the instance of {@code HierarchicalProperties} that is used
+     * by this build executor
+     * @since 1.5
+     */
+    public HierarchicalProperties properties() {
+        return properties_;
+    }
+
+    /**
+     * Retrieve a property from the {@link #properties()}.
+     *
+     * @param name the name of the property
+     * @return the requested property; or {@code null} if it doesn't exist
+     * @since 1.5.15
+     */
+    public String property(String name) {
+        return properties().getValueString(name);
+    }
+
+    /**
+     * Retrieve a property from the {@link #properties()} with a default value.
+     *
+     * @param name         the name of the property
+     * @param defaultValue the value that should be used as a fallback
+     * @return the requested property; or the default value if it doesn't exist
+     * @since 1.5.15
+     */
+    public String property(String name, String defaultValue) {
+        return properties().getValueString(name, defaultValue);
+    }
+
+    /**
+     * Checks for the existence of a property in {@link #properties()}.
+     *
+     * @param name the name of the property
+     * @return {@code true} if the property exists; or {@code false} otherwise
+     * @since 1.5.15
+     */
+    public boolean hasProperty(String name) {
+        return properties().contains(name);
+    }
+
+    /**
+     * Returns the work directory of the project.
+     * Defaults to this process's user working directory, which when running
+     * through the bld wrapper corresponds to the top-level project directory.
+     *
+     * @since 1.5.12
+     */
+    public File workDirectory() {
+        return new File(System.getProperty("user.dir"));
+    }
+
+    /**
+     * Set the exist status to use at the end of the execution.
+     *
+     * @param status sets the exit status
+     * @since 1.5.1
+     */
+    public void exitStatus(int status) {
+        exitStatus_ = status;
+    }
+
+    /**
+     * Retrieves the exit status.
+     *
+     * @return the exit status
+     * @since 1.5.1
+     */
+    public int exitStatus() {
+        return exitStatus_;
+    }
+
+    /**
+     * Execute the build commands from the provided arguments.
+     * <p>
+     * While the build is executing, the arguments can be retrieved
+     * using {@link #arguments()}.
+     *
+     * @param arguments the arguments to execute the build with
+     * @return the exist status
+     * @since 1.5.1
+     */
+    public int execute(String[] arguments) {
+        arguments_ = new ArrayList<>(Arrays.asList(arguments));
+
+        var show_help = false;
+        show_help |= arguments_.removeAll(List.of(ARG_HELP1, ARG_HELP2, ARG_HELP3));
+        showStacktrace |= arguments_.removeAll(List.of(ARG_STACKTRACE1, ARG_STACKTRACE2));
+        show_help |= arguments_.isEmpty();
+
+        if (show_help) {
+            new HelpOperation(this, Collections.emptyList()).execute();
+            return exitStatus_;
+        }
+
+        while (!arguments_.isEmpty()) {
+            var command = arguments_.remove(0);
+
+            try {
+                if (!executeCommand(command)) {
+                    break;
+                }
+            } catch (Throwable e) {
+                exitStatus(1);
+
+                System.err.println();
+
+                if (showStacktrace) {
+                    System.err.println(ExceptionUtils.getExceptionStackTrace(e));
+                } else {
+                    boolean first = true;
+                    var e2 = e;
+                    while (e2 != null) {
+                        if (e2.getMessage() != null) {
+                            if (!first) {
+                                System.err.print("> ");
+                            }
+                            System.err.println(e2.getMessage());
+                            first = false;
+                        }
+                        e2 = e2.getCause();
+                    }
+
+                    if (first) {
+                        System.err.println(ExceptionUtils.getExceptionStackTrace(e));
+                    }
+                }
+            }
+        }
+
+
+        return exitStatus_;
+    }
+
+    /**
+     * Starts the execution of the build. This method will call
+     * System.exit() when done with the appropriate exit status.
+     *
+     * @param arguments the arguments to execute the build with
+     * @see #execute
+     * @since 1.5.1
+     */
+    public void start(String[] arguments) {
+        System.exit(execute(arguments));
+    }
+
+    /**
+     * Retrieves the list of arguments that are being processed.
+     *
+     * @return the list of arguments
+     * @since 1.5
+     */
+    public List<String> arguments() {
+        return arguments_;
+    }
+
+    /**
+     * Retrieves the commands that can be executed by this {@code BuildExecutor}.
+     *
+     * @return a map containing the name of the build command and the method that
+     * corresponds to execution
+     * @see BuildCommand
+     * @since 1.5
+     */
+    public Map<String, CommandDefinition> buildCommands() {
+        if (buildCommands_ == null) {
+            var build_commands = new TreeMap<String, CommandDefinition>();
+
+            Class<?> klass = getClass();
+
+            try {
+                while (klass != null) {
+                    for (var method : klass.getDeclaredMethods()) {
+                        if (method.getParameters().length == 0 && method.isAnnotationPresent(BuildCommand.class)) {
+                            method.setAccessible(true);
+
+                            var name = method.getName();
+                            var annotation = method.getAnnotation(BuildCommand.class);
+
+                            var annotation_name = annotation.value();
+                            if (annotation_name != null && !annotation_name.isEmpty()) {
+                                name = annotation_name;
+                            }
+
+                            if (!build_commands.containsKey(name)) {
+                                var build_help = annotation.help();
+                                CommandHelp command_help = null;
+                                if (build_help != null && build_help != CommandHelp.class) {
+                                    command_help = build_help.getDeclaredConstructor().newInstance();
+                                }
+
+                                var summary = annotation.summary();
+                                var description = annotation.description();
+                                if ((summary != null && !summary.isBlank()) ||
+                                    (description != null && !description.isBlank())) {
+                                    if (summary == null) summary = "";
+                                    if (description == null) description = "";
+                                    if (command_help != null) {
+                                        if (summary.isBlank()) summary = command_help.getSummary();
+                                        if (description.isBlank()) description = command_help.getDescription(name);
+                                    }
+                                    command_help = new AnnotatedCommandHelp(summary, description);
+                                }
+
+                                build_commands.put(name, new CommandAnnotated(this, method, command_help));
+                            }
+                        }
+                    }
+
+                    klass = klass.getSuperclass();
+                }
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+
+            buildCommands_ = build_commands;
+        }
+
+        return buildCommands_;
+    }
+
+    private static class AnnotatedCommandHelp implements CommandHelp {
+        private final String summary_;
+        private final String description_;
+
+        AnnotatedCommandHelp(String summary, String description) {
+            summary_ = summary;
+            description_ = description;
+        }
+
+        @Override
+        public String getSummary() {
+            return summary_;
+        }
+
+        @Override
+        public String getDescription(String topic) {
+            return description_;
+        }
+    }
+
+    /**
+     * Performs the execution of a single command.
+     *
+     * @param command the name of the command to execute
+     * @return {@code true} when the command was found and executed; or
+     * {@code false} if the command couldn't be found
+     * @throws Throwable when an exception occurred during the command execution
+     * @see BuildCommand
+     * @since 1.5
+     */
+    public boolean executeCommand(String command)
+    throws Throwable {
+        var matched_command = command;
+        var definition = buildCommands().get(command);
+
+        // try to find a match for the provided command amongst
+        // the ones that are known
+        if (definition == null) {
+            // try to find starting matching options
+            var matches = new ArrayList<>(buildCommands().keySet().stream()
+                .filter(c -> c.toLowerCase().startsWith(command.toLowerCase()))
+                .toList());
+
+            if (matches.isEmpty()) {
+                // try to find fuzzy matching options
+                var fuzzy_regexp = new StringBuilder("^.*");
+                for (var ch : command.toCharArray()) {
+                    fuzzy_regexp.append("\\Q");
+                    fuzzy_regexp.append(ch);
+                    fuzzy_regexp.append("\\E.*");
+                }
+                fuzzy_regexp.append("$");
+                var fuzzy_pattern = Pattern.compile(fuzzy_regexp.toString());
+                matches.addAll(buildCommands().keySet().stream()
+                    .filter(c -> fuzzy_pattern.matcher(c.toLowerCase()).matches())
+                    .toList());
+            }
+
+            // only proceed if exactly one match was found
+            if (matches.size() == 1) {
+                matched_command = matches.get(0);
+                System.out.println("Executing matched command: " + matched_command);
+                definition = buildCommands().get(matched_command);
+            }
+        }
+
+        // execute the command if we found one
+        if (definition != null) {
+            try {
+                currentCommandName_.set(matched_command);
+                currentCommandDefinition_.set(definition);
+                definition.execute();
+            } catch (ExitStatusException e) {
+                exitStatus(e.getExitStatus());
+                return e.getExitStatus() == ExitStatusException.EXIT_SUCCESS;
+            } finally {
+                currentCommandDefinition_.set(null);
+                currentCommandName_.set(null);
+            }
+        } else {
+            new HelpOperation(this, arguments()).executePrintOverviewHelp();
+            System.err.println();
+            System.err.println("ERROR: unknown command '" + command + "'");
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Retrieves the name of the currently executing command.
+     *
+     * @return the name of the current command; or
+     * {@code null} if no command is currently executing
+     * @since 1.5.12
+     */
+    public String getCurrentCommandName() {
+        return currentCommandName_.get();
+    }
+
+    /**
+     * Retrieves the definition of the currently executing command.
+     *
+     * @return the definition of the current command; or
+     * {@code null} if no command is currently executing
+     * @since 1.5.12
+     */
+    public CommandDefinition getCurrentCommandDefinition() {
+        return currentCommandDefinition_.get();
+    }
+
+    /**
+     * The standard {@code help} command.
+     *
+     * @since 1.5
+     */
+    @BuildCommand(help = HelpHelp.class)
+    public void help() {
+        new HelpOperation(this, arguments()).execute();
+    }
+}
diff --git a/src/main/java/rife/bld/Cli.java b/src/main/java/rife/bld/Cli.java
new file mode 100644
index 0000000..c2b1cb4
--- /dev/null
+++ b/src/main/java/rife/bld/Cli.java
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+import rife.bld.help.*;
+import rife.bld.operations.*;
+
+/**
+ * Implements the RIFE2 CLI build executor that is available when running
+ * the RIFE2 jar as an executable jar.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class Cli extends BuildExecutor {
+    private final CreateBaseOperation createBaseOperation_ = new CreateBaseOperation();
+    private final CreateBlankOperation createBlankOperation_ = new CreateBlankOperation();
+    private final CreateLibOperation createLibOperation_ = new CreateLibOperation();
+    private final CreateRife2Operation createRife2Operation_ = new CreateRife2Operation();
+    private final UpgradeOperation upgradeOperation_ = new UpgradeOperation();
+    private final VersionOperation versionOperation_ = new VersionOperation();
+
+    /**
+     * The standard {@code create} command.
+     *
+     * @throws Exception when an error occurred during the creation process
+     * @since 1.5
+     */
+    @BuildCommand(help = CreateRife2Help.class)
+    public void create()
+    throws Exception {
+        createRife2Operation_.executeOnce(() -> createRife2Operation_.fromArguments(arguments()));
+    }
+
+    /**
+     * The standard {@code create-blank} command.
+     *
+     * @throws Exception when an error occurred during the creation process
+     * @since 1.5
+     */
+    @BuildCommand(value = "create-blank", help = CreateBlankHelp.class)
+    public void createBlank()
+    throws Exception {
+        createBlankOperation_.executeOnce(() -> createBlankOperation_.fromArguments(arguments()));
+    }
+
+    /**
+     * The standard {@code create-base} command.
+     *
+     * @throws Exception when an error occurred during the creation process
+     * @since 1.5.20
+     */
+    @BuildCommand(value = "create-base", help = CreateBaseHelp.class)
+    public void createBase()
+    throws Exception {
+        createBaseOperation_.executeOnce(() -> createBaseOperation_.fromArguments(arguments()));
+    }
+
+    /**
+     * The standard {@code create-lib} command.
+     *
+     * @throws Exception when an error occurred during the creation process
+     * @since 1.6
+     */
+    @BuildCommand(value = "create-lib", help = CreateLibHelp.class)
+    public void createLib()
+    throws Exception {
+        createLibOperation_.executeOnce(() -> createLibOperation_.fromArguments(arguments()));
+    }
+
+    /**
+     * The standard {@code upgrade} command.
+     *
+     * @throws Exception when an error occurred during the upgrade process
+     * @since 1.5
+     */
+    @BuildCommand(help = UpgradeHelp.class)
+    public void upgrade()
+    throws Exception {
+        upgradeOperation_.executeOnce();
+    }
+
+    /**
+     * The standard {@code version} command.
+     *
+     * @since 1.5.2
+     */
+    @BuildCommand(help = VersionHelp.class)
+    public void version()
+    throws Exception {
+        versionOperation_.executeOnce();
+    }
+
+    public static void main(String[] arguments)
+    throws Exception {
+        new Cli().start(arguments);
+    }
+}
diff --git a/src/main/java/rife/bld/CommandAnnotated.java b/src/main/java/rife/bld/CommandAnnotated.java
new file mode 100644
index 0000000..a93ae92
--- /dev/null
+++ b/src/main/java/rife/bld/CommandAnnotated.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+class CommandAnnotated implements CommandDefinition {
+    private final BuildExecutor executor_;
+    private final Method method_;
+    private final CommandHelp help_;
+
+    CommandAnnotated(BuildExecutor executor, Method method, CommandHelp help) {
+        executor_ = executor;
+        method_ = method;
+        if (help == null) {
+            help = new CommandHelp() {};
+        }
+        help_ = help;
+    }
+
+    public void execute()
+    throws Throwable {
+        try {
+            method_.invoke(executor_);
+        } catch (InvocationTargetException e) {
+            throw e.getCause();
+        }
+    }
+
+    public CommandHelp getHelp() {
+        return help_;
+    }
+}
diff --git a/src/main/java/rife/bld/CommandDefinition.java b/src/main/java/rife/bld/CommandDefinition.java
new file mode 100644
index 0000000..6d27b95
--- /dev/null
+++ b/src/main/java/rife/bld/CommandDefinition.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+/**
+ * Defines the logic for a build command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public interface CommandDefinition {
+    /**
+     * Called when a build command is executed.
+     *
+     * @throws Throwable when an error occurred during the execution of the build command
+     * @since 1.5
+     */
+    void execute() throws Throwable;
+
+    /**
+     * Retrieves the help information of a build command.
+     * <p>
+     * Defaults to blank help sections.
+     *
+     * @return this build command's help information
+     * @since 1.5
+     */
+    default CommandHelp getHelp() {
+        return new CommandHelp() {};
+    }
+}
diff --git a/src/main/java/rife/bld/CommandHelp.java b/src/main/java/rife/bld/CommandHelp.java
new file mode 100644
index 0000000..267ed34
--- /dev/null
+++ b/src/main/java/rife/bld/CommandHelp.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+/**
+ * Interface that provides help texts to display about {@link BuildExecutor} commands.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public interface CommandHelp {
+    /**
+     * Returns a short description about the command.
+     *
+     * @return the short summary, defaults to {@code ""}
+     * @since 1.5
+     */
+    default String getSummary() {
+        return "";
+    }
+
+    /**
+     * Returns the full help description of a command.
+     *
+     * @return the full help description, defaults to {@code ""}
+     * @since 1.5
+     */
+    default String getDescription(String topic) {
+        return "";
+    }
+}
diff --git a/src/main/java/rife/bld/NamedFile.java b/src/main/java/rife/bld/NamedFile.java
new file mode 100644
index 0000000..3142e7f
--- /dev/null
+++ b/src/main/java/rife/bld/NamedFile.java
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+import java.io.File;
+
+/**
+ * Combines the information of a filesystem file with the name it's intended
+ * to have.
+ *
+ * @param name the intended name of the file
+ * @param file the location on the filesystem
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public record NamedFile(String name, File file) {
+}
diff --git a/src/main/java/rife/bld/Project.java b/src/main/java/rife/bld/Project.java
new file mode 100644
index 0000000..8f12be1
--- /dev/null
+++ b/src/main/java/rife/bld/Project.java
@@ -0,0 +1,195 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+import rife.bld.help.*;
+import rife.bld.operations.*;
+
+import java.util.*;
+import java.util.jar.Attributes;
+
+/**
+ * Provides the configuration and commands of a Java project for the
+ * build system with all standard commands ready to go.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class Project extends BaseProject {
+    /*
+     * Standard build commands
+     */
+
+    private final JavadocOperation javadocOperation_ = new JavadocOperation();
+    private final PrecompileOperation precompileOperation_ = new PrecompileOperation();
+    private final JarOperation jarOperation_ = new JarOperation();
+    private final JarOperation jarSourcesOperation_ = new JarOperation();
+    private final JarOperation jarJavadocOperation_ = new JarOperation();
+    private final JUnitOperation junitTestOperation_ = new JUnitOperation();
+    private final UberJarOperation uberJarOperation_ = new UberJarOperation();
+
+    @Override
+    public JUnitOperation testOperation() {
+        return junitTestOperation_;
+    }
+
+    /**
+     * Retrieves the project's default javadoc operation.
+     *
+     * @return the default javadoc operation instance
+     * @since 1.5.18
+     */
+    public JavadocOperation javadocOperation() {
+        return javadocOperation_;
+    }
+
+    /**
+     * Retrieves the project's default precompile operation.
+     *
+     * @return the default precompile operation instance
+     * @since 1.5.18
+     */
+    public PrecompileOperation precompileOperation() {
+        return precompileOperation_;
+    }
+
+    /**
+     * Retrieves the project's default jar operation.
+     *
+     * @return the default jar operation instance
+     * @since 1.5.18
+     */
+    public JarOperation jarOperation() {
+        return jarOperation_;
+    }
+
+    /**
+     * Retrieves the project's default jar operation for sources.
+     *
+     * @return the default jar operation instance for sources
+     * @since 1.5.18
+     */
+    public JarOperation jarSourcesOperation() {
+        return jarSourcesOperation_;
+    }
+
+    /**
+     * Retrieves the project's default jar operation for javadoc.
+     *
+     * @return the default jar operation instance for javadoc
+     * @since 1.5.18
+     */
+    public JarOperation jarJavadocOperation() {
+        return jarJavadocOperation_;
+    }
+
+    /**
+     * Retrieves the project's default uberjar operation.
+     *
+     * @return the default uberjar operation instance
+     * @since 1.5.18
+     */
+    public UberJarOperation uberJarOperation() {
+        return uberJarOperation_;
+    }
+
+    @BuildCommand(help = JUnitHelp.class)
+    @Override
+    public void test()
+    throws Exception {
+        super.test();
+    }
+
+    /**
+     * Standard build command, generates javadoc.
+     *
+     * @since 1.5.10
+     */
+    @BuildCommand(help = JavadocHelp.class)
+    public void javadoc()
+    throws Exception {
+        javadocOperation().executeOnce(() -> javadocOperation().fromProject(this));
+    }
+
+    /**
+     * Standard build command, pre-compiles RIFE2 templates to class files.
+     *
+     * @since 1.5
+     */
+    @BuildCommand(help = PrecompileHelp.class)
+    public void precompile()
+    throws Exception {
+        precompileOperation().executeOnce(() -> precompileOperation().fromProject(this));
+    }
+
+    /**
+     * Standard build command, creates a jar archive for the project.
+     *
+     * @since 1.5
+     */
+    @BuildCommand(help = JarHelp.class)
+    public void jar()
+    throws Exception {
+        compile();
+        precompile();
+        jarOperation().executeOnce(() -> jarOperation().fromProject(this));
+    }
+
+    /**
+     * Standard build command, creates a sources jar archive for the project.
+     *
+     * @since 1.5.10
+     */
+    @BuildCommand(value = "jar-sources", help = JarSourcesHelp.class)
+    public void jarSources()
+    throws Exception {
+        jarSourcesOperation().executeOnce(() -> jarSourcesOperation()
+            .manifestAttributes(Map.of(Attributes.Name.MANIFEST_VERSION, "1.0"))
+            .sourceDirectories(List.of(srcMainJavaDirectory()))
+            .destinationDirectory(buildDistDirectory())
+            .destinationFileName(sourcesJarFileName()));
+    }
+
+    /**
+     * Standard build command, creates a javadoc jar archive for the project.
+     *
+     * @since 1.5.10
+     */
+    @BuildCommand(value = "jar-javadoc", help = JarJavadocHelp.class)
+    public void jarJavadoc()
+    throws Exception {
+        compile();
+        javadoc();
+        jarJavadocOperation().executeOnce(() -> jarJavadocOperation().manifestAttributes(Map.of(Attributes.Name.MANIFEST_VERSION, "1.0"))
+            .sourceDirectories(List.of(buildJavadocDirectory()))
+            .destinationDirectory(buildDistDirectory())
+            .destinationFileName(javadocJarFileName()));
+    }
+    /**
+     * Standard build command, creates an UberJar archive for the project.
+     *
+     * @since 1.5
+     */
+    @BuildCommand(help = UberJarHelp.class)
+    public void uberjar()
+    throws Exception {
+        jar();
+        uberJarOperation().executeOnce(() -> uberJarOperation().fromProject(this));
+    }
+
+    /**
+     * Standard publish command, uploads artifacts to the publication repository.
+     *
+     * @since 1.5.7
+     */
+    @BuildCommand(help = PublishHelp.class)
+    public void publish()
+    throws Exception {
+        jar();
+        jarSources();
+        jarJavadoc();
+        publishOperation().executeOnce(() -> publishOperation().fromProject(this));
+    }
+}
diff --git a/src/main/java/rife/bld/WebProject.java b/src/main/java/rife/bld/WebProject.java
new file mode 100644
index 0000000..1314525
--- /dev/null
+++ b/src/main/java/rife/bld/WebProject.java
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+import rife.bld.help.*;
+import rife.bld.operations.*;
+import rife.bld.publish.PublishArtifact;
+
+import java.io.File;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * Provides the configuration and commands of a Java web project for the
+ * build system.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class WebProject extends Project {
+    /**
+     * The main war archive creation.
+     *
+     * @see #warFileName()
+     * @since 1.5.0
+     */
+    protected String warFileName = null;
+    /**
+     * The main webapp directory.
+     *
+     * @see #srcMainWebappDirectory()
+     * @since 1.5
+     */
+    protected File srcMainWebappDirectory = null;
+
+    /*
+     * Standard build commands
+     */
+
+    private final WarOperation warOperation_ = new WarOperation();
+
+    /**
+     * Retrieves the project's default war operation.
+     *
+     * @return the default war operation instance
+     * @since 1.5.18
+     */
+    protected WarOperation warOperation() {
+        return warOperation_;
+    }
+
+    /**
+     * Standard build command, creates an UberJar archive for the web project.
+     *
+     * @since 1.5
+     */
+    @Override
+    public void uberjar()
+    throws Exception {
+        jar();
+        uberJarOperation().executeOnce(() -> {
+            uberJarOperation().fromProject(this);
+            uberJarOperation().sourceDirectories(List.of(new NamedFile("webapp", srcMainWebappDirectory())));
+            uberJarOperation().jarSourceFiles().addAll(standaloneClasspathJars());
+        });
+    }
+
+    /**
+     * Standard build command, creates a war archive for the web project.
+     *
+     * @since 1.5
+     */
+    @BuildCommand(help = WarHelp.class)
+    public void war()
+    throws Exception {
+        jar();
+        warOperation().executeOnce(() -> warOperation().fromProject(this));
+    }
+
+    /**
+     * Standard publish-web command, uploads artifacts to the publication repository.
+     *
+     * @since 1.5.7
+     */
+    @BuildCommand(help = PublishWebHelp.class)
+    public void publish()
+    throws Exception {
+        jar();
+        jarSources();
+        jarJavadoc();
+        uberjar();
+        war();
+        publishOperation().executeOnce(() -> {
+            publishOperation().fromProject(this);
+            publishOperation().artifacts().add(new PublishArtifact(new File(buildDistDirectory(), uberJarFileName()), "uber", "jar"));
+            publishOperation().artifacts().add(new PublishArtifact(new File(buildDistDirectory(), warFileName()), "", "war"));
+        });
+    }
+
+    /*
+     * Project directories
+     */
+
+    @Override
+    public File libStandaloneDirectory() {
+        return Objects.requireNonNullElseGet(libStandaloneDirectory, () -> new File(libDirectory(), "standalone"));
+    }
+
+    /**
+     * Returns the project main webapp directory.
+     * Defaults to {@code "webapp"} relative to {@link #srcMainDirectory()}.
+     *
+     * @since 1.5
+     */
+    public File srcMainWebappDirectory() {
+        return Objects.requireNonNullElseGet(srcMainWebappDirectory, () -> new File(srcMainDirectory(), "webapp"));
+    }
+
+    /*
+     * Project options
+     */
+
+    /**
+     * Returns filename to use for the main war archive creation.
+     * By default, appends the version and the {@code war} extension to the {@link #archiveBaseName()}.
+     *
+     * @since 1.5.0
+     */
+    public String warFileName() {
+        return Objects.requireNonNullElseGet(warFileName, () -> archiveBaseName() + "-" + version() + ".war");
+    }
+}
diff --git a/src/main/java/rife/bld/blueprints/BaseProjectBlueprint.java b/src/main/java/rife/bld/blueprints/BaseProjectBlueprint.java
new file mode 100644
index 0000000..6a299f4
--- /dev/null
+++ b/src/main/java/rife/bld/blueprints/BaseProjectBlueprint.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.blueprints;
+
+import rife.bld.Project;
+import rife.bld.dependencies.VersionNumber;
+import rife.tools.StringUtils;
+
+import java.io.File;
+import java.util.List;
+
+import static rife.bld.dependencies.Repository.MAVEN_CENTRAL;
+import static rife.bld.dependencies.Repository.SONATYPE_SNAPSHOTS;
+import static rife.bld.dependencies.Scope.test;
+
+/**
+ * Provides the dependency information required to create a new base project.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.20
+ */
+public class BaseProjectBlueprint extends Project {
+    public BaseProjectBlueprint(File work, String packageName, String projectName) {
+        this(work, packageName, projectName, new VersionNumber(0,0,1));
+    }
+
+    public BaseProjectBlueprint(File work, String packageName, String projectName, VersionNumber versionNumber) {
+        workDirectory = work;
+
+        pkg = packageName;
+        name = projectName;
+        mainClass = packageName + "." + StringUtils.capitalize(projectName) + "Main";
+        version = versionNumber;
+
+        downloadSources = true;
+        repositories = List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/blueprints/BlankProjectBlueprint.java b/src/main/java/rife/bld/blueprints/BlankProjectBlueprint.java
new file mode 100644
index 0000000..3a6937f
--- /dev/null
+++ b/src/main/java/rife/bld/blueprints/BlankProjectBlueprint.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.blueprints;
+
+import rife.bld.Project;
+import rife.bld.dependencies.VersionNumber;
+import rife.tools.StringUtils;
+
+import java.io.File;
+import java.util.List;
+
+import static rife.bld.dependencies.Repository.MAVEN_CENTRAL;
+import static rife.bld.dependencies.Repository.SONATYPE_SNAPSHOTS;
+import static rife.bld.dependencies.Scope.test;
+
+/**
+ * Provides the dependency information required to create a new blank project.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class BlankProjectBlueprint extends Project {
+    public BlankProjectBlueprint(File work, String packageName, String projectName) {
+        this(work, packageName, projectName, new VersionNumber(0,0,1));
+    }
+
+    public BlankProjectBlueprint(File work, String packageName, String projectName, VersionNumber versionNumber) {
+        workDirectory = work;
+
+        pkg = packageName;
+        name = projectName;
+        mainClass = packageName + "." + StringUtils.capitalize(projectName) + "Main";
+        version = versionNumber;
+
+        downloadSources = true;
+        repositories = List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS);
+        scope(test)
+            .include(dependency("org.junit.jupiter", "junit-jupiter", version(5,9,3)))
+            .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1,9,3)));
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/blueprints/LibProjectBlueprint.java b/src/main/java/rife/bld/blueprints/LibProjectBlueprint.java
new file mode 100644
index 0000000..0805cd7
--- /dev/null
+++ b/src/main/java/rife/bld/blueprints/LibProjectBlueprint.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.blueprints;
+
+import rife.bld.Project;
+import rife.bld.dependencies.VersionNumber;
+import rife.tools.StringUtils;
+
+import java.io.File;
+import java.util.List;
+
+import static rife.bld.dependencies.Repository.MAVEN_CENTRAL;
+import static rife.bld.dependencies.Repository.SONATYPE_SNAPSHOTS;
+
+/**
+ * Provides the dependency information required to create a new lib project.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.6
+ */
+public class LibProjectBlueprint extends Project {
+    public LibProjectBlueprint(File work, String packageName, String projectName) {
+        this(work, packageName, projectName, new VersionNumber(0,0,1));
+    }
+
+    public LibProjectBlueprint(File work, String packageName, String projectName, VersionNumber versionNumber) {
+        workDirectory = work;
+
+        pkg = packageName;
+        name = projectName;
+        mainClass = packageName + "." + StringUtils.capitalize(projectName) + "Lib";
+        version = versionNumber;
+
+        downloadSources = true;
+        repositories = List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/blueprints/Rife2ProjectBlueprint.java b/src/main/java/rife/bld/blueprints/Rife2ProjectBlueprint.java
new file mode 100644
index 0000000..49123b2
--- /dev/null
+++ b/src/main/java/rife/bld/blueprints/Rife2ProjectBlueprint.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.blueprints;
+
+import rife.bld.WebProject;
+import rife.bld.dependencies.VersionNumber;
+import rife.bld.operations.TemplateType;
+import rife.tools.StringUtils;
+
+import java.io.File;
+import java.util.List;
+
+import static rife.bld.dependencies.Repository.MAVEN_CENTRAL;
+import static rife.bld.dependencies.Repository.SONATYPE_SNAPSHOTS;
+import static rife.bld.dependencies.Scope.*;
+
+/**
+ * Provides the dependency information required to create a new RIFE2 project.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class Rife2ProjectBlueprint extends WebProject {
+    public Rife2ProjectBlueprint(File work, String packageName, String projectName) {
+        this(work, packageName, projectName, new VersionNumber(0,0,1));
+    }
+
+    public Rife2ProjectBlueprint(File work, String packageName, String projectName, VersionNumber versionNumber) {
+        workDirectory = work;
+
+        pkg = packageName;
+        name = projectName;
+        mainClass = packageName + "." + StringUtils.capitalize(projectName) + "Site";
+        version = versionNumber;
+
+        downloadSources = true;
+        repositories = List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS);
+        scope(compile)
+            .include(dependency("com.uwyn.rife2", "rife2", version(1,6,3)));
+        scope(test)
+            .include(dependency("org.jsoup", "jsoup", version(1,16,1)))
+            .include(dependency("org.junit.jupiter", "junit-jupiter", version(5,9,3)))
+            .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1,9,3)));
+        scope(standalone)
+            .include(dependency("org.eclipse.jetty", "jetty-server", version(11,0,15)))
+            .include(dependency("org.eclipse.jetty", "jetty-servlet", version(11,0,15)))
+            .include(dependency("org.slf4j", "slf4j-simple", version(2,0,7)));
+
+        precompileOperation().templateTypes(TemplateType.HTML);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/blueprints/package-info.java b/src/main/java/rife/bld/blueprints/package-info.java
new file mode 100644
index 0000000..22f7558
--- /dev/null
+++ b/src/main/java/rife/bld/blueprints/package-info.java
@@ -0,0 +1,10 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+
+/**
+ * Provides blueprints for project creation.
+ * @since 1.5
+ */
+package rife.bld.blueprints;
\ No newline at end of file
diff --git a/src/main/java/rife/bld/dependencies/ArtifactRetriever.java b/src/main/java/rife/bld/dependencies/ArtifactRetriever.java
new file mode 100644
index 0000000..a4874d9
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/ArtifactRetriever.java
@@ -0,0 +1,202 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import rife.tools.FileUtils;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.net.URL;
+import java.nio.channels.Channels;
+import java.security.MessageDigest;
+import java.util.*;
+
+import static rife.tools.HttpUtils.HEADER_AUTHORIZATION;
+import static rife.tools.HttpUtils.basicAuthorizationHeader;
+import static rife.tools.StringUtils.encodeHexLower;
+
+/**
+ * Retrieves artifact data.
+ * <p>
+ * To instantiate, use either {@link #instance()} for direct retrieval of
+ * each request, or {@link #cachingInstance()} where previous retrievals
+ * of remote string content will be cached for faster future retrieval.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.18
+ */
+public abstract class ArtifactRetriever {
+    private final static ArtifactRetriever UNCACHED = new ArtifactRetriever() {
+        String getCached(RepositoryArtifact artifact) {
+            return null;
+        }
+
+        void cache(RepositoryArtifact artifact, String content) {
+        }
+    };
+
+    /**
+     * Gets an artifact retriever that does direct retrieval of each request.
+     *
+     * @return the direct retrieval instance
+     * @since 1.5.18
+     */
+    public static ArtifactRetriever instance() {
+        return UNCACHED;
+    }
+
+    /**
+     * Creates a caching artifact retriever where previous retrievals
+     * of remote string content will be cached for faster future retrieval.
+     *
+     * @return a caching instance
+     * @since 1.5.18
+     */
+    public static ArtifactRetriever cachingInstance() {
+        return new ArtifactRetriever() {
+            private final Map<RepositoryArtifact, String> artifactCache = new HashMap<>();
+
+            String getCached(RepositoryArtifact artifact) {
+                return artifactCache.get(artifact);
+            }
+
+            void cache(RepositoryArtifact artifact, String content) {
+                artifactCache.put(artifact, content);
+            }
+
+        };
+    }
+
+    private ArtifactRetriever() {
+    }
+
+    abstract String getCached(RepositoryArtifact artifact);
+
+    abstract void cache(RepositoryArtifact artifact, String content);
+
+    /**
+     * Reads the contents of an artifact as a string.
+     *
+     * @param artifact the artifact who's content to retrieve
+     * @return the string content of the artifact
+     * @throws FileUtilsErrorException when an error occurred when reading the contents
+     * @since 1.5.18
+     */
+    public String readString(RepositoryArtifact artifact)
+    throws FileUtilsErrorException {
+        if (artifact.repository().isLocal()) {
+            return FileUtils.readString(new File(artifact.location()));
+        } else {
+            var cached = getCached(artifact);
+            if (cached != null) {
+                return cached;
+            }
+
+            try {
+                var connection = new URL(artifact.location()).openConnection();
+                connection.setUseCaches(false);
+                if (artifact.repository().username() != null && artifact.repository().password() != null) {
+                    connection.setRequestProperty(
+                        HEADER_AUTHORIZATION,
+                        basicAuthorizationHeader(artifact.repository().username(), artifact.repository().password()));
+                }
+                try (var input_stream = connection.getInputStream()) {
+                    var result = FileUtils.readString(input_stream);
+                    cache(artifact, result);
+                    return result;
+                }
+            } catch (IOException e) {
+                throw new FileUtilsErrorException("Error while reading URL '" + artifact.location() + ".", e);
+            }
+        }
+    }
+
+    /**
+     * Transfers artifact into the provided directory.
+     * <p>
+     * The destination directory must exist and be writable.
+     *
+     * @param artifact  the artifact to transfer
+     * @param directory the directory to transfer the artifact into
+     * @return {@code true} when the artifact is present in the directory (it could already have been
+     * there and be validated as correct); or {@code false} when the artifact couldn't be transferred
+     * @throws IOException             when an error occurred during the transfer
+     * @throws FileUtilsErrorException when an error occurred during the transfer
+     * @since 1.5.18
+     */
+    public boolean transferIntoDirectory(RepositoryArtifact artifact, File directory)
+    throws IOException, FileUtilsErrorException {
+        if (directory == null) throw new IllegalArgumentException("directory can't be null");
+        if (!directory.exists()) throw new IllegalArgumentException("directory '" + directory + "' doesn't exit");
+        if (!directory.canWrite()) throw new IllegalArgumentException("directory '" + directory + "' can't be written to");
+        if (!directory.isDirectory()) throw new IllegalArgumentException("directory '" + directory + "' is not a directory");
+
+        var download_filename = artifact.location().substring(artifact.location().lastIndexOf("/") + 1);
+        var download_file = new File(directory, download_filename);
+        System.out.print("Downloading: " + artifact.location() + " ... ");
+        System.out.flush();
+        try {
+            if (artifact.repository().isLocal()) {
+                var source = new File(artifact.location());
+                if (source.exists()) {
+                    FileUtils.copy(source, download_file);
+                    System.out.print("done");
+                    return true;
+                } else {
+                    System.out.print("not found");
+                    return false;
+                }
+            } else {
+                try {
+                    if (download_file.exists() && download_file.canRead()) {
+                        if (checkHash(artifact, download_file, ".sha256", "SHA-256") ||
+                            checkHash(artifact, download_file, ".md5", "MD5")) {
+                            System.out.print("exists");
+                            return true;
+                        }
+                    }
+
+                    var connection = new URL(artifact.location()).openConnection();
+                    connection.setUseCaches(false);
+                    if (artifact.repository().username() != null && artifact.repository().password() != null) {
+                        connection.setRequestProperty(
+                            HEADER_AUTHORIZATION,
+                            basicAuthorizationHeader(artifact.repository().username(), artifact.repository().password()));
+                    }
+                    try (var input_stream = connection.getInputStream()) {
+                        var readableByteChannel = Channels.newChannel(input_stream);
+                        try (var fileOutputStream = new FileOutputStream(download_file)) {
+                            var fileChannel = fileOutputStream.getChannel();
+                            fileChannel.transferFrom(readableByteChannel, 0, Long.MAX_VALUE);
+
+                            System.out.print("done");
+                            return true;
+                        }
+                    }
+                } catch (FileNotFoundException e) {
+                    System.out.print("not found");
+                    return false;
+                }
+            }
+        } finally {
+            System.out.println();
+        }
+    }
+
+    private boolean checkHash(RepositoryArtifact artifact, File downloadFile, String extension, String algorithm) {
+        try {
+            var hash_sum = readString(artifact.appendPath(extension));
+            var digest = MessageDigest.getInstance(algorithm);
+            digest.update(FileUtils.readBytes(downloadFile));
+            return hash_sum.equals(encodeHexLower(digest.digest()));
+        } catch (Exception e) {
+            // no-op, the hash file couldn't be found or calculated, so it couldn't be checked
+        }
+        return false;
+    }
+}
diff --git a/src/main/java/rife/bld/dependencies/Dependency.java b/src/main/java/rife/bld/dependencies/Dependency.java
new file mode 100644
index 0000000..48fbe0f
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/Dependency.java
@@ -0,0 +1,169 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import java.util.Objects;
+import java.util.regex.Pattern;
+
+/**
+ * Contains the information required to describe an url dependency in the build system.
+ *
+ * @param groupId    the dependency group identifier
+ * @param artifactId the dependency url identifier
+ * @param version    the dependency version
+ * @param classifier the dependency classier
+ * @param type       the dependency type
+ * @param exclusions the dependency exclusions for transitive resolution
+ * @param parent     the parent dependency that created this dependency (only for information purposes)
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public record Dependency(String groupId, String artifactId, VersionNumber version, String classifier, String type, ExclusionSet exclusions, Dependency parent) {
+    public static final String CLASSIFIER_SOURCES = "sources";
+    public static final String CLASSIFIER_JAVADOC = "javadoc";
+
+    public Dependency(String groupId, String artifactId) {
+        this(groupId, artifactId, null, null, null);
+    }
+
+    public Dependency(String groupId, String artifactId, VersionNumber version) {
+        this(groupId, artifactId, version, null, null);
+    }
+
+    public Dependency(String groupId, String artifactId, VersionNumber version, String classifier) {
+        this(groupId, artifactId, version, classifier, null);
+    }
+
+    public Dependency(String groupId, String artifactId, VersionNumber version, String classifier, String type) {
+        this(groupId, artifactId, version, classifier, type, null);
+    }
+
+    public Dependency(String groupId, String artifactId, VersionNumber version, String classifier, String type, ExclusionSet exclusions) {
+        this(groupId, artifactId, version, classifier, type, null, null);
+    }
+
+    public Dependency(String groupId, String artifactId, VersionNumber version, String classifier, String type, ExclusionSet exclusions, Dependency parent) {
+        this.groupId = groupId;
+        this.artifactId = artifactId;
+        this.version = (version == null ? VersionNumber.UNKNOWN : version);
+        this.classifier = (classifier == null ? "" : classifier);
+        this.type = (type == null ? "jar" : type);
+        this.exclusions = (exclusions == null ? new ExclusionSet() : exclusions);
+        this.parent = parent;
+    }
+
+    private static final Pattern DEPENDENCY_PATTERN = Pattern.compile("^(?<groupId>[^:@]+):(?<artifactId>[^:@]+)(?::(?<version>[^:@]+)(?::(?<classifier>[^:@]+))?)?(?:@(?<type>[^:@]+))?$");
+
+    /**
+     * Parses a dependency from a string representation.
+     * The format is {@code groupId:artifactId:version:classifier@type}.
+     * The {@code version}, {@code classifier} and {@code type} are optional.
+     * <p>
+     * If the string can't be successfully parsed, {@code null} will be returned.
+     *
+     * @param dependency the dependency string to parse
+     * @return a parsed instance of {@code Dependency}; or
+     * {@code null} when the string couldn't be parsed
+     * @since 1.5.2
+     */
+    public static Dependency parse(String dependency) {
+        if (dependency == null || dependency.isEmpty()) {
+            return null;
+        }
+
+        var matcher = DEPENDENCY_PATTERN.matcher(dependency);
+        if (!matcher.matches()) {
+            return null;
+        }
+
+        var groupId = matcher.group("groupId");
+        var artifactId = matcher.group("artifactId");
+        var version = VersionNumber.parse(matcher.group("version"));
+        var classifier = matcher.group("classifier");
+        var type = matcher.group("type");
+
+        return new Dependency(groupId, artifactId, version, classifier, type);
+    }
+
+    /**
+     * Returns the base dependency of this dependency, replacing the version number
+     * with an unknown version number.
+     *
+     * @return this dependency's base dependency
+     * @since 1.5
+     */
+    public Dependency baseDependency() {
+        return new Dependency(groupId, artifactId, VersionNumber.UNKNOWN, classifier, type);
+    }
+
+    /**
+     * Adds an exclusion to this dependency.
+     *
+     * @param groupId    the exclusion group identifier, use {@code "*"} to exclude all groupIds
+     * @param artifactId the exclusion url identifier, use {@code "*"} to exclude all artifactIds
+     * @return this dependency instance
+     * @since 1.5
+     */
+    public Dependency exclude(String groupId, String artifactId) {
+        exclusions.add(new DependencyExclusion(groupId, artifactId));
+        return this;
+    }
+
+    /**
+     * Returns a new dependency with the same data, except for the provided classifier.
+     *
+     * @param classifier the classifier to use for the new dependency
+     * @return the new dependency with the changed classifier
+     * @since 1.5.6
+     */
+    public Dependency withClassifier(String classifier) {
+        return new Dependency(groupId, artifactId, version, classifier, type);
+    }
+
+    /**
+     * Returns a filename that corresponds to the dependency information.
+     *
+     * @return a filename for the dependency
+     * @since 1.5.4
+     */
+    public String toFileName() {
+        var result = new StringBuilder(artifactId());
+        result.append("-").append(version());
+        if (!classifier().isEmpty()) {
+            result.append("-").append(classifier());
+        }
+        result.append(".").append(type());
+        return result.toString();
+
+    }
+
+    public String toString() {
+        var result = new StringBuilder(groupId).append(":").append(artifactId);
+        if (!version.equals(VersionNumber.UNKNOWN)) {
+            result.append(":").append(version);
+        }
+        if (!classifier.isEmpty()) {
+            result.append(":").append(classifier);
+        }
+        if (!type.isEmpty() && !type.equals("jar")) {
+            result.append("@").append(type);
+        }
+        return result.toString();
+    }
+
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        var that = (Dependency) o;
+        return groupId.equals(that.groupId) &&
+               artifactId.equals(that.artifactId) &&
+               classifier.equals(that.classifier) &&
+               type.equals(that.type);
+    }
+
+    public int hashCode() {
+        return Objects.hash(groupId, artifactId, classifier, type);
+    }
+}
diff --git a/src/main/java/rife/bld/dependencies/DependencyExclusion.java b/src/main/java/rife/bld/dependencies/DependencyExclusion.java
new file mode 100644
index 0000000..23bb3b3
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/DependencyExclusion.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import java.util.Objects;
+
+/**
+ * Contains the information to describe a dependency exclusion.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public record DependencyExclusion(String groupId, String artifactId) {
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        DependencyExclusion that = (DependencyExclusion) o;
+        return Objects.equals(groupId, that.groupId) && Objects.equals(artifactId, that.artifactId);
+    }
+
+    public int hashCode() {
+        return Objects.hash(groupId, artifactId);
+    }
+
+    boolean matches(PomDependency dependency) {
+        return (groupId().equals("*") && artifactId().equals("*")) ||
+               (groupId().equals("*") && artifactId().equals(dependency.artifactId())) ||
+               (groupId().equals(dependency.groupId()) && artifactId().equals("*")) ||
+               (groupId().equals(dependency.groupId()) && artifactId().equals(dependency.artifactId()));
+
+    }
+}
diff --git a/src/main/java/rife/bld/dependencies/DependencyResolver.java b/src/main/java/rife/bld/dependencies/DependencyResolver.java
new file mode 100644
index 0000000..281c857
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/DependencyResolver.java
@@ -0,0 +1,427 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import rife.bld.dependencies.exceptions.*;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import java.io.*;
+import java.util.*;
+import java.util.stream.Collectors;
+
+/**
+ * Resolves a dependency within a list of Maven-compatible repositories.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class DependencyResolver {
+    private final ArtifactRetriever retriever_;
+    private final List<Repository> repositories_;
+    private final Dependency dependency_;
+
+    private MavenMetadata metadata_ = null;
+    private MavenMetadata snapshotMetadata_ = null;
+
+    /**
+     * Creates a new resolver for a particular dependency.
+     * <p>
+     * The repositories will be checked in the order they're listed.
+     *
+     * @param retriever    the retriever to use to get artifacts
+     * @param repositories the repositories to use for the resolution
+     * @param dependency   the dependency to resolve
+     * @since 1.5.18
+     */
+    public DependencyResolver(ArtifactRetriever retriever, List<Repository> repositories, Dependency dependency) {
+        retriever_ = retriever;
+        if (repositories == null) {
+            repositories = Collections.emptyList();
+        }
+        repositories_ = repositories;
+        dependency_ = dependency;
+    }
+
+    /**
+     * Checks whether the dependency exists in any of the provided repositories.
+     *
+     * @return {@code true} if the dependency exists; {@code false} otherwise
+     * @since 1.5
+     */
+    public boolean exists() {
+        try {
+            if (getMavenMetadata() == null) {
+                return false;
+            }
+            if (!dependency_.version().equals(VersionNumber.UNKNOWN)) {
+                return getMavenMetadata().getVersions().contains(dependency_.version());
+            }
+            return true;
+        } catch (ArtifactNotFoundException | ArtifactRetrievalErrorException e) {
+            return false;
+        }
+    }
+
+
+    /**
+     * Resolves the dependency version in the provided repositories.
+     * <p>
+     * When the dependency was defined without a specific version number,
+     * the latest version number will be returned if the dependency exists.
+     * If the dependency couldn't be found and no specific version number
+     * was provided, {@linkplain VersionNumber#UNKNOWN} will be returned.
+     *
+     * @return the resolved version
+     * @since 1.5
+     */
+    public VersionNumber resolveVersion() {
+        var version = dependency_.version();
+        if (version.equals(VersionNumber.UNKNOWN)) {
+            return latestVersion();
+        }
+        return version;
+    }
+
+    /**
+     * Retrieves the direct dependencies of the resolved dependency for the
+     * provided scopes.
+     *
+     * @param scopes the scopes to return the direct dependencies for
+     * @return the requested direct dependencies; or an empty {@linkplain DependencySet}
+     * if no direct dependencies could be found or the dependency doesn't exist in
+     * the provided repositories
+     * @since 1.5
+     */
+    public DependencySet getDirectDependencies(Scope... scopes) {
+        var pom_dependencies = getMavenPom(dependency_).getDependencies(scopes);
+        var result = new DependencySet();
+        for (var dependency : pom_dependencies) {
+            result.add(dependency.convertToDependency());
+        }
+        return result;
+    }
+
+    /**
+     * Retrieves all the transitive dependencies of the resolved dependency for the
+     * provided scopes. This includes the dependency of this resolver also.
+     * <p>
+     * This can be a slow and expensive operation since querying continues through
+     * the complete POM hierarchy until all transitive dependencies have been found.
+     *
+     * @param scopes the scopes to return the transitive dependencies for
+     * @return the requested transitive dependencies; or an empty {@linkplain DependencySet}
+     * if no transitive dependencies could be found or the dependency doesn't exist in
+     * the provided repositories
+     * @since 1.5
+     */
+    public DependencySet getAllDependencies(Scope... scopes) {
+        var result = new DependencySet();
+        result.add(dependency_);
+
+        var dependency_queue = new ArrayList<PomDependency>();
+
+        var parent = dependency_;
+        var next_dependencies = getMavenPom(parent).getDependencies(scopes);
+
+        while (parent != null && next_dependencies != null) {
+            // remove any next dependencies that are already queued
+            dependency_queue.forEach(next_dependencies::remove);
+            // remove any next dependencies that match the current exclusion context
+            final var exclusion_context = parent;
+            next_dependencies.removeIf(it -> matchesExclusions(exclusion_context, it));
+            // add all next dependencies to the queue
+            dependency_queue.addAll(next_dependencies);
+
+            // unless we find a next set of dependencies to add, stop resolving
+            parent = null;
+            next_dependencies = null;
+
+            // iterate through the dependency queue until we find one that isn't
+            // part of the results yet
+            while (!dependency_queue.isEmpty()) {
+                var candidate = dependency_queue.remove(0);
+                var dependency = candidate.convertToDependency();
+                if (!result.contains(dependency)) {
+                    result.add(dependency);
+
+                    // we found a dependency that was added to the result, get its
+                    // dependencies so that they can be added to the queue after
+                    // filtering
+                    parent = dependency;
+                    next_dependencies = new DependencyResolver(retriever_, repositories_, dependency).getMavenPom(parent).getDependencies(scopes);
+                    break;
+                }
+            }
+        }
+        return result;
+    }
+
+    private boolean matchesExclusions(Dependency context, PomDependency checked) {
+        while (context != null) {
+            if (context.exclusions() != null) {
+                for (var exclusion : context.exclusions()) {
+                    if (exclusion.matches(checked)) {
+                        return true;
+                    }
+                }
+            }
+            context = context.parent();
+        }
+
+        if (dependency_.exclusions() != null) {
+            for (var exclusion : dependency_.exclusions()) {
+                if (exclusion.matches(checked)) {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Retrieves all the versions of the resolved dependency.
+     *
+     * @return this dependency's version list; or an empty list if the dependency
+     * couldn't be found in the provided repositories
+     * @since 1.5
+     */
+    public List<VersionNumber> listVersions() {
+        return getMavenMetadata().getVersions();
+    }
+
+    /**
+     * Retrieves the latest version of the resolved dependency.
+     *
+     * @return this dependency's latest version; or {@link VersionNumber#UNKNOWN}
+     * if the dependency couldn't be found in the provided repositories
+     * @since 1.5
+     */
+    public VersionNumber latestVersion() {
+        return getMavenMetadata().getLatest();
+    }
+
+    /**
+     * Retrieves the release version of the resolved dependency.
+     *
+     * @return this dependency's release version; or {@link VersionNumber#UNKNOWN}
+     * if the dependency couldn't be found in the provided repositories
+     * @since 1.5
+     */
+    public VersionNumber releaseVersion() {
+        return getMavenMetadata().getRelease();
+    }
+
+    /**
+     * Transfers the artifacts for the resolved dependency into the provided directory.
+     * <p>
+     * The destination directory must exist and be writable.
+     *
+     * @param directory the directory to transfer the dependency artifact into
+     * @return the artifact that was successfully transferred; or {@code null} if no artifact was transferred
+     * @throws DependencyTransferException when an error occurred during the transfer
+     * @since 1.5.10
+     */
+    public RepositoryArtifact transferIntoDirectory(File directory)
+    throws DependencyTransferException {
+        for (var artifact : getTransferArtifacts()) {
+            try {
+                if (retriever_.transferIntoDirectory(artifact, directory)) {
+                    return artifact;
+                }
+            } catch (IOException e) {
+                throw new DependencyTransferException(dependency_, artifact.location(), directory, e);
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Retrieve the repositories that are used by this dependency resolver.
+     *
+     * @return the dependency resolver's repositories
+     * @since 1.5
+     */
+    public List<Repository> repositories() {
+        return repositories_;
+    }
+
+    /**
+     * Retrieve the dependency that is resolved.
+     *
+     * @return the resolved dependency
+     * @since 1.5
+     */
+    public Dependency dependency() {
+        return dependency_;
+    }
+
+    /**
+     * Retrieves all the potential locations for the dependency
+     * within the provided repositories.
+     *
+     * @return a list of potential transfer locations
+     * @since 1.5.10
+     */
+    public List<String> getTransferLocations() {
+        return getTransferArtifacts().stream().map(RepositoryArtifact::location).toList();
+    }
+
+    /**
+     * Returns the main Maven metadata for this dependency
+     *
+     * @return this dependency's metadata
+     * @since 1.5.8
+     */
+    public MavenMetadata getMavenMetadata() {
+        if (metadata_ == null) {
+            var locations = getMetadataLocations();
+            metadata_ = parseMavenMetadata(locations);
+        }
+
+        return metadata_;
+    }
+
+    /**
+     * THe Maven metadata with snapshot information when this is a snapshot version.
+     *
+     * @return Maven metadata if this is a snapshot dependency version; or
+     * {@code null} if this version is not a snapshot
+     * @since 1.5.8
+     */
+    public MavenMetadata getSnapshotMavenMetadata() {
+        if (snapshotMetadata_ == null) {
+            final var version = resolveVersion();
+            if (version.isSnapshot()) {
+                var locations = getSnapshotMetadataLocations();
+                snapshotMetadata_ = parseMavenMetadata(locations);
+            }
+        }
+
+        return snapshotMetadata_;
+    }
+
+    private List<RepositoryArtifact> getTransferArtifacts() {
+        final var version = resolveVersion();
+        final VersionNumber pom_version;
+        if (version.isSnapshot()) {
+            var metadata = getSnapshotMavenMetadata();
+            pom_version = metadata.getSnapshot();
+        } else {
+            pom_version = version;
+        }
+
+        return getArtifactLocations().stream().map(a -> {
+            var result = new StringBuilder();
+            result.append(version).append("/").append(dependency_.artifactId()).append("-").append(pom_version);
+            if (!dependency_.classifier().isEmpty()) {
+                result.append("-").append(dependency_.classifier());
+            }
+            var type = dependency_.type();
+            if (type == null) {
+                type = "jar";
+            }
+            result.append(".").append(type);
+
+            return a.appendPath(result.toString());
+        }).toList();
+    }
+
+    private List<RepositoryArtifact> getArtifactLocations() {
+        return repositories_.stream().map(repository -> new RepositoryArtifact(repository, repository.getArtifactLocation(dependency_))).toList();
+    }
+
+    private List<RepositoryArtifact> getMetadataLocations() {
+        return getArtifactLocations().stream().map(a -> a.appendPath(a.repository().getMetadataName())).toList();
+    }
+
+    private List<RepositoryArtifact> getSnapshotMetadataLocations() {
+        var version = resolveVersion();
+        return getArtifactLocations().stream().map(a -> a.appendPath(version + "/" + a.repository().getMetadataName())).toList();
+    }
+
+    private MavenMetadata parseMavenMetadata(List<RepositoryArtifact> artifacts) {
+        RepositoryArtifact retrieved_artifact = null;
+        String metadata = null;
+        for (var artifact : artifacts) {
+            try {
+                var content = retriever_.readString(artifact);
+                if (content == null) {
+                    throw new ArtifactNotFoundException(dependency_, artifact.location());
+                }
+
+                retrieved_artifact = artifact;
+                metadata = content;
+
+                break;
+            } catch (FileUtilsErrorException e) {
+                if (e.getCause() instanceof FileNotFoundException) {
+                    continue;
+                }
+                throw new ArtifactRetrievalErrorException(dependency_, artifact.location(), e);
+            }
+        }
+
+        if (metadata == null) {
+            throw new ArtifactNotFoundException(dependency_, artifacts.stream().map(RepositoryArtifact::location).collect(Collectors.joining(", ")));
+        }
+
+        var xml = new Xml2MavenMetadata();
+        if (!xml.processXml(metadata)) {
+            throw new DependencyXmlParsingErrorException(dependency_, retrieved_artifact.location(), xml.getErrors());
+        }
+
+        return xml;
+    }
+
+    private List<RepositoryArtifact> getPomLocations() {
+        final var version = resolveVersion();
+        final VersionNumber pom_version;
+        if (version.isSnapshot()) {
+            var metadata = getSnapshotMavenMetadata();
+            pom_version = metadata.getSnapshot();
+        } else {
+            pom_version = version;
+        }
+
+        return getArtifactLocations().stream().map(a -> a.appendPath(version + "/" + dependency_.artifactId() + "-" + pom_version + ".pom")).toList();
+    }
+
+    Xml2MavenPom getMavenPom(Dependency parent) {
+        RepositoryArtifact retrieved_artifact = null;
+        String pom = null;
+        var artifacts = getPomLocations();
+
+        for (var artifact : artifacts) {
+            try {
+                var content = retriever_.readString(artifact);
+                if (content == null) {
+                    throw new ArtifactNotFoundException(dependency_, artifact.location());
+                }
+
+                retrieved_artifact = artifact;
+                pom = content;
+
+                break;
+            } catch (FileUtilsErrorException e) {
+                if (e.getCause() instanceof FileNotFoundException) {
+                    continue;
+                }
+                throw new ArtifactRetrievalErrorException(dependency_, artifact.location(), e);
+            }
+        }
+
+        if (pom == null) {
+            throw new ArtifactNotFoundException(dependency_, artifacts.stream().map(RepositoryArtifact::location).collect(Collectors.joining(", ")));
+        }
+
+        var xml = new Xml2MavenPom(parent, retriever_, repositories_);
+        if (!xml.processXml(pom)) {
+            throw new DependencyXmlParsingErrorException(dependency_, retrieved_artifact.location(), xml.getErrors());
+        }
+
+        return xml;
+    }
+}
diff --git a/src/main/java/rife/bld/dependencies/DependencyScopes.java b/src/main/java/rife/bld/dependencies/DependencyScopes.java
new file mode 100644
index 0000000..fc98cfa
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/DependencyScopes.java
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import java.util.LinkedHashMap;
+import java.util.List;
+
+/**
+ * Convenience class to map a {@link Scope} to its dependencies.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class DependencyScopes extends LinkedHashMap<Scope, DependencySet> {
+    /**
+     * Creates an empty dependency scope map.
+     *
+     * @since 1.5
+     */
+    public DependencyScopes() {
+    }
+
+    /**
+     * Creates a dependency scope map from another one.
+     *
+     * @param other the other map to create this one from
+     * @since 1.5
+     */
+    public DependencyScopes(DependencyScopes other) {
+        for (var entry : other.entrySet()) {
+            put(entry.getKey(), new DependencySet(entry.getValue()));
+        }
+    }
+
+    /**
+     * Includes all the dependencies from another dependency scope map.
+     *
+     * @param other the other map to include dependencies from
+     * @since 1.5
+     */
+    public void include(DependencyScopes other) {
+        for (var entry : other.entrySet()) {
+            var dependencies = get(entry.getKey());
+            if (dependencies == null) {
+                dependencies = new DependencySet();
+                put(entry.getKey(), dependencies);
+            }
+            dependencies.addAll(entry.getValue());
+        }
+    }
+
+    /**
+     * Retrieves the {@link DependencySet} for a particular scope.
+     *
+     * @param scope the scope to retrieve the dependencies for
+     * @return the scope's {@code DependencySet};
+     * or an empty {@code DependencySet} if none have been defined for the provided scope.
+     * @since 1.5
+     */
+    public DependencySet scope(Scope scope) {
+        return computeIfAbsent(scope, k -> new DependencySet());
+    }
+
+    /**
+     * Returns the transitive set of dependencies that would be used for the compile scope in a project.
+     *
+     * @param retriever    the retriever to use to get artifacts
+     * @param repositories the repositories to use for the resolution
+     * @return the compile scope dependency set
+     * @since 1.6
+     */
+    public DependencySet resolveCompileDependencies(ArtifactRetriever retriever, List<Repository> repositories) {
+        return resolveScopedDependencies(retriever, repositories,
+            new Scope[]{Scope.provided, Scope.compile},
+            new Scope[]{Scope.compile},
+            null);
+    }
+
+    /**
+     * Returns the transitive set of dependencies that would be used for the runtime scope in a project.
+     *
+     * @param retriever    the retriever to use to get artifacts
+     * @param repositories the repositories to use for the resolution
+     * @return the runtime scope dependency set
+     * @since 1.6
+     */
+    public DependencySet resolveRuntimeDependencies(ArtifactRetriever retriever, List<Repository> repositories) {
+        return resolveScopedDependencies(retriever, repositories,
+            new Scope[]{Scope.provided, Scope.compile, Scope.runtime},
+            new Scope[]{Scope.compile, Scope.runtime},
+            resolveCompileDependencies(retriever, repositories));
+    }
+
+    /**
+     * Returns the transitive set of dependencies that would be used for the standalone scope in a project.
+     *
+     * @param retriever    the retriever to use to get artifacts
+     * @param repositories the repositories to use for the resolution
+     * @return the standalone scope dependency set
+     * @since 1.6
+     */
+    public DependencySet resolveStandaloneDependencies(ArtifactRetriever retriever, List<Repository> repositories) {
+        return resolveScopedDependencies(retriever, repositories,
+            new Scope[]{Scope.standalone},
+            new Scope[]{Scope.compile, Scope.runtime},
+            null);
+    }
+
+    /**
+     * Returns the transitive set of dependencies that would be used for the test scope in a project.
+     *
+     * @param retriever    the retriever to use to get artifacts
+     * @param repositories the repositories to use for the resolution
+     * @return the test scope dependency set
+     * @since 1.6
+     */
+    public DependencySet resolveTestDependencies(ArtifactRetriever retriever, List<Repository> repositories) {
+        return resolveScopedDependencies(retriever, repositories,
+            new Scope[]{Scope.test},
+            new Scope[]{Scope.compile, Scope.runtime},
+            null);
+    }
+
+    private DependencySet resolveScopedDependencies(ArtifactRetriever retriever, List<Repository> repositories, Scope[] resolvedScopes, Scope[] transitiveScopes, DependencySet excluded) {
+        var dependencies = new DependencySet();
+        for (var scope : resolvedScopes) {
+            var scoped_dependencies = get(scope);
+            if (scoped_dependencies != null) {
+                for (var dependency : scoped_dependencies) {
+                    dependencies.addAll(new DependencyResolver(retriever, repositories, dependency).getAllDependencies(transitiveScopes));
+                }
+            }
+        }
+        if (excluded != null) {
+            dependencies.removeAll(excluded);
+        }
+        return dependencies;
+    }
+}
diff --git a/src/main/java/rife/bld/dependencies/DependencySet.java b/src/main/java/rife/bld/dependencies/DependencySet.java
new file mode 100644
index 0000000..5d5aeb0
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/DependencySet.java
@@ -0,0 +1,266 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import rife.bld.dependencies.exceptions.DependencyTransferException;
+
+import java.io.File;
+import java.util.*;
+
+/**
+ * Convenience class to handle a set of {@link Dependency} objects.
+ * <p>
+ * Only a single version of each dependency can exist in this set.
+ * When adding a new dependency, it will only be added if it didn't exist
+ * in the set yet, or if the new dependency has a higher version than
+ * the existing one.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class DependencySet extends AbstractSet<Dependency> implements Set<Dependency> {
+    private final Map<Dependency, Dependency> dependencies_ = new LinkedHashMap<>();
+    private final Set<LocalDependency> localDependencies_ = new LinkedHashSet<>();
+
+    /**
+     * Creates an empty dependency set.
+     *
+     * @since 1.5
+     */
+    public DependencySet() {
+    }
+
+    /**
+     * Creates a dependency set from another one.
+     *
+     * @param other the other set to create this one from
+     * @since 1.5
+     */
+    public DependencySet(DependencySet other) {
+        addAll(other);
+    }
+
+    /**
+     * Includes a dependency into the dependency set.
+     *
+     * @param dependency the dependency to include
+     * @return this dependency set instance
+     * @since 1.5
+     */
+    public DependencySet include(Dependency dependency) {
+        add(dependency);
+        return this;
+    }
+
+    /**
+     * Includes a local dependency into the dependency set.
+     * <p>
+     * Local dependencies aren't resolved and point to a location on
+     * the file system.
+     *
+     * @param dependency the dependency to include
+     * @return this dependency set instance
+     * @since 1.5.2
+     */
+    public DependencySet include(LocalDependency dependency) {
+        localDependencies_.add(dependency);
+        return this;
+    }
+
+    /**
+     * Retrieves the local dependencies.
+     *
+     * @return the set of local dependencies
+     * @since 1.5.2
+     */
+    public Set<LocalDependency> localDependencies() {
+        return localDependencies_;
+    }
+
+    /**
+     * Transfers the artifacts for the dependencies into the provided directory.
+     * <p>
+     * The destination directory must exist and be writable.
+     *
+     * @param retriever    the retriever to use to get artifacts
+     * @param repositories the repositories to use for the transfer
+     * @param directory    the directory to transfer the artifacts into
+     * @return the list of artifacts that were transferred successfully
+     * @throws DependencyTransferException when an error occurred during the transfer
+     * @since 1.5.10
+     */
+    public List<RepositoryArtifact> transferIntoDirectory(ArtifactRetriever retriever, List<Repository> repositories, File directory) {
+        return transferIntoDirectory(retriever, repositories, directory, (String[]) null);
+    }
+
+    /**
+     * Transfers the artifacts for the dependencies into the provided directory,
+     * including other classifiers.
+     * <p>
+     * The destination directory must exist and be writable.
+     *
+     * @param retriever    the retriever to use to get artifacts
+     * @param repositories the repositories to use for the download
+     * @param directory    the directory to download the artifacts into
+     * @param classifiers  the additional classifiers to transfer
+     * @return the list of artifacts that were transferred successfully
+     * @throws DependencyTransferException when an error occurred during the transfer
+     * @since 1.5.10
+     */
+    public List<RepositoryArtifact> transferIntoDirectory(ArtifactRetriever retriever, List<Repository> repositories, File directory, String... classifiers) {
+        var result = new ArrayList<RepositoryArtifact>();
+        for (var dependency : this) {
+            var artifact = new DependencyResolver(retriever, repositories, dependency).transferIntoDirectory(directory);
+            if (artifact != null) {
+                result.add(artifact);
+            }
+
+            if (classifiers != null) {
+                for (var classifier : classifiers) {
+                    if (classifier != null) {
+                        var classifier_artifact = new DependencyResolver(retriever, repositories, dependency.withClassifier(classifier)).transferIntoDirectory(directory);
+                        if (classifier_artifact != null) {
+                            result.add(classifier_artifact);
+                        }
+                    }
+                }
+            }
+        }
+        return result;
+    }
+
+    /**
+     * Returns the dependency that was stored in the set.
+     * <p>
+     * The version can be different from the dependency passed in and this
+     * method can be used to look up the actual version of the dependency in the set.
+     *
+     * @param dependency the dependency to look for
+     * @return the dependency in the set; or
+     * {@code null} if no such dependency exists
+     * @since 1.5
+     */
+    public Dependency get(Dependency dependency) {
+        return dependencies_.get(dependency);
+    }
+
+    /**
+     * Generates the string description of the transitive hierarchical tree of
+     * dependencies for a particular scope.
+     *
+     * @param retriever    the retriever to use to get artifacts
+     * @param repositories the repositories to look for dependencies in
+     * @param scopes       the scopes to return the transitive dependencies for
+     * @return the generated tree description string; or an empty string if
+     * there were no dependencies to describe
+     * @since 1.5.21
+     */
+    public String generateTransitiveDependencyTree(ArtifactRetriever retriever, List<Repository> repositories, Scope... scopes) {
+        var compile_dependencies = new DependencySet();
+        for (var dependency : this) {
+            compile_dependencies.addAll(new DependencyResolver(retriever, repositories, dependency).getAllDependencies(scopes));
+        }
+        return compile_dependencies.generateDependencyTree();
+    }
+
+    /**
+     * Generates the string description of the hierarchical tree of
+     * dependencies in this {@code DependencySet}. This relies on the {@code Dependency}
+     * {@code parent} field to be set correctly to indicate their relationships.
+     *
+     * @return the generated tree description string; or an empty string if
+     * there were no dependencies to describe
+     * @since 1.5.21
+     */
+    public String generateDependencyTree() {
+        var result = new StringBuilder();
+
+        var dependency_list = new ArrayList<>(this);
+        var dependency_stack = new Stack<DependencyTreeEntry>();
+
+        var roots = dependency_list.stream().filter(dependency -> dependency.parent() == null).toList();
+        dependency_list.removeIf(dependency -> dependency.parent() == null);
+
+        var roots_it = roots.iterator();
+        while (roots_it.hasNext()) {
+            var root = roots_it.next();
+
+            dependency_list.add(0, root);
+            stack:
+            do {
+                var list_it = dependency_list.iterator();
+                while (list_it.hasNext()) {
+                    var list_dep = list_it.next();
+                    if (list_dep.parent() == null) {
+                        list_it.remove();
+                        var entry = new DependencyTreeEntry(null, list_dep, !roots_it.hasNext());
+                        result.append(entry).append(System.lineSeparator());
+                        dependency_stack.add(entry);
+                    } else {
+                        var stack_entry = dependency_stack.peek();
+                        if (list_dep.parent().equals(stack_entry.dependency())) {
+                            list_it.remove();
+
+                            boolean last = dependency_list.stream().noneMatch(d -> d.parent().equals(stack_entry.dependency()));
+                            var entry = new DependencyTreeEntry(stack_entry, list_dep, last);
+                            result.append(entry).append(System.lineSeparator());
+                            dependency_stack.add(entry);
+                            continue stack;
+                        }
+                    }
+                }
+                dependency_stack.pop();
+            } while (!dependency_stack.isEmpty());
+        }
+
+        return result.toString();
+    }
+
+    private record DependencyTreeEntry(DependencyTreeEntry parent, Dependency dependency, boolean last) {
+        public String toString() {
+            var result = new StringBuilder();
+
+            if (last) {
+                result.insert(0, "└─ ");
+            } else {
+                result.insert(0, "├─ ");
+            }
+
+            var p = parent();
+            while (p != null) {
+                if (p.last()) {
+                    result.insert(0, "   ");
+                } else {
+                    result.insert(0, "│  ");
+                }
+                p = p.parent();
+            }
+
+            return result.toString() + dependency;
+        }
+    }
+
+    public boolean add(Dependency dependency) {
+        var existing = dependencies_.get(dependency);
+        if (existing == null) {
+            dependencies_.put(dependency, dependency);
+            return true;
+        }
+        if (dependency.version().compareTo(existing.version()) > 0) {
+            dependencies_.remove(dependency);
+            dependencies_.put(dependency, dependency);
+            return true;
+        }
+        return false;
+    }
+
+    public Iterator<Dependency> iterator() {
+        return dependencies_.keySet().iterator();
+    }
+
+    public int size() {
+        return dependencies_.size();
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/dependencies/ExclusionSet.java b/src/main/java/rife/bld/dependencies/ExclusionSet.java
new file mode 100644
index 0000000..3dc0df7
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/ExclusionSet.java
@@ -0,0 +1,16 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import java.util.LinkedHashSet;
+
+/**
+ * Convenience class to handle a set of {@link DependencyExclusion} objects.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class ExclusionSet extends LinkedHashSet<DependencyExclusion> {
+}
diff --git a/src/main/java/rife/bld/dependencies/LocalDependency.java b/src/main/java/rife/bld/dependencies/LocalDependency.java
new file mode 100644
index 0000000..2bf227b
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/LocalDependency.java
@@ -0,0 +1,17 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+/**
+ * Contains the information required to describe a local dependency for the build system.
+ * <p>
+ * If the local dependency points to a directory, it will be scanned for jar files.
+ *
+ * @param path the file system path of the local dependency
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.2
+ */
+public record LocalDependency(String path) {
+}
diff --git a/src/main/java/rife/bld/dependencies/MavenMetadata.java b/src/main/java/rife/bld/dependencies/MavenMetadata.java
new file mode 100644
index 0000000..b901941
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/MavenMetadata.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import java.util.List;
+
+/**
+ * Provides Maven metadata information
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.8
+ */
+public interface MavenMetadata {
+    /**
+     * Returns latest version number in the metadata.
+     *
+     * @return the latest version number
+     * @since 1.5.8
+     */
+    VersionNumber getLatest();
+
+    /**
+     * Returns release version number in the metadata.
+     *
+     * @return the release version number
+     * @since 1.5.8
+     */
+    VersionNumber getRelease();
+
+    /**
+     * Returns snapshot version number in the metadata.
+     *
+     * @return the snapshot version number
+     * @since 1.5.8
+     */
+    VersionNumber getSnapshot();
+
+    /**
+     * Returns snapshot timestamp in the metadata.
+     *
+     * @return the snapshot timestamp
+     * @since 1.5.8
+     */
+    String getSnapshotTimestamp();
+
+    /**
+     * Returns snapshot build number in the metadata.
+     *
+     * @return the snapshot build number
+     * @since 1.5.8
+     */
+    Integer getSnapshotBuildNumber();
+
+    /**
+     * Returns all the release or snapshot versions in the metadata.
+     *
+     * @return the version number list
+     * @since 1.5.8
+     */
+    List<VersionNumber> getVersions();
+}
diff --git a/src/main/java/rife/bld/dependencies/PomDependency.java b/src/main/java/rife/bld/dependencies/PomDependency.java
new file mode 100644
index 0000000..13d19d6
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/PomDependency.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import java.util.*;
+
+/**
+ * Contains the information required to describe a dependency with all
+ * the details stored in a Maven POM descriptor.
+ * <p>
+ * This is used by the {@linkplain DependencyResolver} while traversing
+ * the dependency graph, eventually resulting into fully resolved
+ * {@linkplain Dependency} instances.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public record PomDependency(String groupId, String artifactId, String version, String classifier, String type,
+                            String scope, String optional, ExclusionSet exclusions, Dependency parent) {
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        PomDependency that = (PomDependency) o;
+        return Objects.equals(groupId, that.groupId) && Objects.equals(artifactId, that.artifactId) && Objects.equals(classifier, that.classifier) && Objects.equals(type, that.type);
+    }
+
+    boolean isPomImport() {
+        return "pom".equals(type()) && "import".equals(scope());
+    }
+
+    Dependency convertToDependency() {
+        return new Dependency(
+            groupId(),
+            artifactId(),
+            VersionNumber.parse(version()),
+            classifier(),
+            type(),
+            exclusions(),
+            parent());
+    }
+
+    public int hashCode() {
+        return Objects.hash(groupId, artifactId, classifier, type);
+    }
+}
diff --git a/src/main/java/rife/bld/dependencies/Repository.java b/src/main/java/rife/bld/dependencies/Repository.java
new file mode 100644
index 0000000..d37fe59
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/Repository.java
@@ -0,0 +1,197 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import rife.ioc.HierarchicalProperties;
+import rife.tools.StringEncryptor;
+
+import java.nio.file.Path;
+import java.security.NoSuchAlgorithmException;
+
+/**
+ * Contains the information required to locate a Maven-compatible repository.
+ *
+ * @param location the base location of the repository
+ * @param username the username to access the repository
+ * @param password the password to access the repository
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public record Repository(String location, String username, String password) {
+    public static Repository MAVEN_LOCAL = null;
+    public static final Repository MAVEN_CENTRAL = new Repository("https://repo1.maven.org/maven2/");
+    public static final Repository SONATYPE_RELEASES = new Repository("https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/");
+    public static final Repository SONATYPE_SNAPSHOTS = new Repository("https://s01.oss.sonatype.org/content/repositories/snapshots/");
+    public static final Repository SONATYPE_SNAPSHOTS_LEGACY = new Repository("https://oss.sonatype.org/content/repositories/snapshots/");
+    public static final Repository APACHE = new Repository("https://repo.maven.apache.org/maven2/");
+    public static final Repository RIFE2_RELEASES = new Repository("https://repo.rife2.com/releases/");
+    public static final Repository RIFE2_SNAPSHOTS = new Repository("https://repo.rife2.com/snapshots/");
+
+    private static final String MAVEN_LOCAL_REPO_PROPERTY = "maven.repo.local";
+
+    public static final String PROPERTY_BLD_REPO_PREFIX = "bld.repo.";
+    public static final String PROPERTY_BLD_REPO_USERNAME_SUFFIX = ".username";
+    public static final String PROPERTY_BLD_REPO_PASSWORD_SUFFIX = ".password";
+
+    /**
+     * This method will be called as soon as hierarchical properties
+     * are initialized in the build executor. It is not intended to be called
+     * manually.
+     *
+     * @param properties the hierarchical properties to use for resolving
+     *                   the maven local repository
+     * @since 1.5.12
+     */
+    public static void resolveMavenLocal(HierarchicalProperties properties) {
+        var user_home = properties.getValueString("user.home");
+        if (user_home == null) {
+            user_home = System.getProperty("user.home");
+        }
+        var maven_local = properties.getValueString(
+            MAVEN_LOCAL_REPO_PROPERTY,
+            Path.of(user_home, ".m2", "repository").toString());
+        MAVEN_LOCAL = new Repository(maven_local);
+    }
+
+    /**
+     * Resolves the repository in the provided hierarchical properties.
+     * <p>
+     * For instance, using the name {@code myrepo} will look for the following properties:<br>
+     * {@code bld.repo.myrepo}<br>
+     * {@code bld.repo.myrepo.username} (optional)<br>
+     * {@code bld.repo.myrepo.password} (optional)
+     * <p>
+     * If the {@code bld.repo.myrepo} property isn't found, the {@code locationOrName}
+     * parameter will be used as a location instead.
+     *
+     * @param properties     the hierarchical properties to look into
+     * @param locationOrName the text to resolve a repository name or to be used as a location
+     * @return the repository instance
+     * @since 1.5.12
+     */
+    public static Repository resolveRepository(HierarchicalProperties properties, String locationOrName) {
+        if (properties != null && properties.contains(PROPERTY_BLD_REPO_PREFIX + locationOrName)) {
+            var location = properties.getValueString(PROPERTY_BLD_REPO_PREFIX + locationOrName);
+            var username = properties.getValueString(PROPERTY_BLD_REPO_PREFIX + locationOrName + PROPERTY_BLD_REPO_USERNAME_SUFFIX);
+            var password = properties.getValueString(PROPERTY_BLD_REPO_PREFIX + locationOrName + PROPERTY_BLD_REPO_PASSWORD_SUFFIX);
+            return new Repository(location, username, password);
+        }
+
+        return switch (locationOrName) {
+            case "MAVEN_LOCAL" -> Repository.MAVEN_LOCAL;
+            case "MAVEN_CENTRAL" -> Repository.MAVEN_CENTRAL;
+            case "SONATYPE_RELEASES" -> Repository.SONATYPE_RELEASES;
+            case "SONATYPE_SNAPSHOTS" -> Repository.SONATYPE_SNAPSHOTS;
+            case "SONATYPE_SNAPSHOTS_LEGACY" -> Repository.SONATYPE_SNAPSHOTS_LEGACY;
+            case "APACHE" -> Repository.APACHE;
+            case "RIFE2_RELEASES" -> Repository.RIFE2_RELEASES;
+            case "RIFE2_SNAPSHOTS" -> Repository.RIFE2_SNAPSHOTS;
+            default -> new Repository(locationOrName);
+        };
+    }
+
+    /**
+     * Creates a new repository with only a location.
+     *
+     * @param location the location to create the repository for
+     * @since 1.5
+     */
+    public Repository(String location) {
+        this(location, null, null);
+    }
+
+    /**
+     * Indicates whether this repository is local.
+     *
+     * @return {@code true} when this repository is local; or
+     * {@code false} otherwise
+     * @since 1.5.10
+     */
+    public boolean isLocal() {
+        return location().startsWith("/") || location().startsWith("file:");
+    }
+
+    /**
+     * Creates a new repository instance of the same location, but with
+     * different credentials.
+     *
+     * @param username the username to access the repository
+     * @param password the password to access the repository
+     * @return the new repository
+     * @since 1.5.10
+     */
+    public Repository withCredentials(String username, String password) {
+        return new Repository(location(), username, password);
+    }
+
+    /**
+     * Constructs the location for a dependency if it would be located in this repository.
+     *
+     * @param dependency the dependency to create the location for
+     * @return the constructed location
+     * @since 1.5.10
+     */
+    public String getArtifactLocation(Dependency dependency) {
+        return getArtifactLocation(dependency.groupId(), dependency.artifactId());
+    }
+
+    /**
+     * Constructs the location for a dependency if it would be located in this repository.
+     *
+     * @param groupId    the groupId dependency to create the location for
+     * @param artifactId the artifactId dependency to create the location for
+     * @return the constructed location
+     * @since 1.5.10
+     */
+    public String getArtifactLocation(String groupId, String artifactId) {
+        var group_path = groupId.replace(".", "/");
+        var result = new StringBuilder();
+        if (isLocal()) {
+            if (location().startsWith("file://")) {
+                result.append(location().substring("file://".length()));
+            } else {
+                result.append(location());
+            }
+        } else {
+            result.append(location());
+        }
+        if (!location().endsWith("/")) {
+            result.append("/");
+        }
+        return result.append(group_path).append("/").append(artifactId).append("/").toString();
+    }
+
+    /**
+     * Returns the appropriate metadata name.
+     *
+     * @return the metadata name for this repository.
+     * @since 1.5.10
+     */
+    public String getMetadataName() {
+        if (isLocal()) {
+            return "maven-metadata-local.xml";
+        } else {
+            return "maven-metadata.xml";
+        }
+    }
+
+    public String toString() {
+        var result = new StringBuilder(location);
+        if (username() != null) {
+            result.append(":");
+            try {
+                result.append(StringEncryptor.MD5HLO.performEncryption(username(), null));
+                if (password() != null) {
+                    result.append(":");
+                    result.append(StringEncryptor.MD5HLO.performEncryption(password(), null));
+                }
+            } catch (NoSuchAlgorithmException e) {
+                // should never happen
+                throw new RuntimeException(e);
+            }
+        }
+        return result.toString();
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/dependencies/RepositoryArtifact.java b/src/main/java/rife/bld/dependencies/RepositoryArtifact.java
new file mode 100644
index 0000000..88a0433
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/RepositoryArtifact.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+/**
+ * Represents an artifact location in a repository.
+ *
+ * @param repository the repository of the artifact
+ * @param location   the location of the artifact in the repository
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.6
+ */
+public record RepositoryArtifact(Repository repository, String location) {
+    public RepositoryArtifact appendPath(String path) {
+        return new RepositoryArtifact(repository, location + path);
+    }
+
+    public String toString() {
+        return repository + ":" + location;
+    }
+}
diff --git a/src/main/java/rife/bld/dependencies/Scope.java b/src/main/java/rife/bld/dependencies/Scope.java
new file mode 100644
index 0000000..dd8f40c
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/Scope.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+/**
+ * Provides all the dependency scopes that are supported by
+ * the RIFE2 build system.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public enum Scope {
+    /**
+     * Used for compiling the main source code.
+     * @since 1.5
+     */
+    compile,
+
+    /**
+     * Used when running the main source code.
+     * @since 1.5
+     */
+    runtime,
+
+    /**
+     * Used when compiling and running the test source code.
+     * @since 1.5
+     */
+    test,
+
+    /**
+     * Used when running the main source code without container.
+     * @since 1.5
+     */
+    standalone,
+
+    /**
+     * Provided by a container when running the main source code.
+     * @since 1.5
+     */
+    provided
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/dependencies/VersionNumber.java b/src/main/java/rife/bld/dependencies/VersionNumber.java
new file mode 100644
index 0000000..650d70b
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/VersionNumber.java
@@ -0,0 +1,249 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import java.util.Objects;
+import java.util.regex.Pattern;
+
+/**
+ * Contains the information required to describe a dependency version number.
+ * <p>
+ * This operates according to the versioning scheme specified by Maven.
+ * <p>
+ * When the version number is undefined, {@link VersionNumber#UNKNOWN} should be used.
+ *
+ * @param major     the major version component
+ * @param minor     the minor version component
+ * @param revision  the revision of the version
+ * @param qualifier a string qualifier for the version
+ * @param separator the separator used to separate the qualifier from the version number
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public record VersionNumber(Integer major, Integer minor, Integer revision, String qualifier, String separator) implements Comparable<VersionNumber> {
+    public static final String SNAPSHOT_QUALIFIER = "SNAPSHOT";
+
+    /**
+     * Singleton to use when the version is not specified.
+     *
+     * @since 1.5
+     */
+    public static final VersionNumber UNKNOWN = new VersionNumber(0, 0, 0, "");
+
+    private static final Pattern VERSION_PATTERN = Pattern.compile("^(?<major>\\d+)(?:\\.(?<minor>\\d+)(?:\\.(?<revision>\\d+))?)?(?:(?<separator>[.\\-])(?<qualifier>.*[^.\\-]))??$");
+
+    /**
+     * Parses a version number from a string representation.
+     * <p>
+     * If the string can't be successfully parsed, {@link VersionNumber#UNKNOWN} will be returned.
+     *
+     * @param version the version string to parse
+     * @return a parsed instance of {@code VersionNumber}; or
+     * {@link VersionNumber#UNKNOWN} when the string couldn't be parsed
+     * @since 1.5
+     */
+    public static VersionNumber parse(String version) {
+        if (version == null || version.isEmpty()) {
+            return UNKNOWN;
+        }
+
+        var matcher = VERSION_PATTERN.matcher(version);
+        if (!matcher.matches()) {
+            return UNKNOWN;
+        }
+
+        var major = matcher.group("major");
+        var minor = matcher.group("minor");
+        var revision = matcher.group("revision");
+
+        var major_integer = (major != null ? Integer.parseInt(major) : null);
+        var minor_integer = (minor != null ? Integer.parseInt(minor) : null);
+        var revision_integer = (revision != null ? Integer.parseInt(revision) : null);
+
+        var qualifier = matcher.group("qualifier");
+        var separator = matcher.group("separator");
+
+        return new VersionNumber(major_integer, minor_integer, revision_integer, qualifier, separator);
+    }
+
+    /**
+     * Constructs a version number with only a major component.
+     *
+     * @param major the major version component
+     * @since 1.5
+     */
+    public VersionNumber(Integer major) {
+        this(major, null, null, "");
+    }
+
+    /**
+     * Constructs a version number with a major and minor component.
+     *
+     * @param major the major version component
+     * @param minor the minor version component
+     * @since 1.5
+     */
+    public VersionNumber(Integer major, Integer minor) {
+        this(major, minor, null, "");
+    }
+
+    /**
+     * Constructs a version number with major, minor and revision components.
+     *
+     * @param major    the major version component
+     * @param minor    the minor version component
+     * @param revision the version revision component
+     * @since 1.5
+     */
+    public VersionNumber(Integer major, Integer minor, Integer revision) {
+        this(major, minor, revision, "");
+    }
+
+    /**
+     * Constructs a complete version number with qualifier, the separator will default to "{@code -}".
+     *
+     * @param major     the major version component
+     * @param minor     the minor version component
+     * @param revision  the version revision component
+     * @param qualifier the version qualifier
+     * @since 1.5
+     */
+    public VersionNumber(Integer major, Integer minor, Integer revision, String qualifier) {
+        this(major, minor, revision, qualifier, "-");
+    }
+
+    /**
+     * Constructs a complete version number with qualifier.
+     *
+     * @param major     the major version component
+     * @param minor     the minor version component
+     * @param revision  the version revision component
+     * @param qualifier the version qualifier
+     * @param separator the separator for the version qualifier
+     * @since 1.5
+     */
+    public VersionNumber(Integer major, Integer minor, Integer revision, String qualifier, String separator) {
+        this.major = major;
+        this.minor = minor;
+        this.revision = revision;
+        this.qualifier = (qualifier == null ? "" : qualifier);
+        this.separator = separator;
+    }
+
+    /**
+     * Retrieves the base version number without the qualifier.
+     *
+     * @return the base version number instance
+     * @since 1.5
+     */
+    public VersionNumber getBaseVersion() {
+        return new VersionNumber(major, minor, revision, null);
+    }
+
+    /**
+     * Retrieves the version number with a different qualifier.
+     *
+     * @return this version number with a different qualifier
+     * @since 1.5.8
+     */
+    public VersionNumber withQualifier(String qualifier) {
+        return new VersionNumber(major, minor, revision, qualifier);
+    }
+
+    /**
+     * Returns a primitive integer for the major version component.
+     *
+     * @return the major version component as an {@code int}
+     * @since 1.5
+     */
+    public int majorInt() {
+        return major == null ? 0 : major;
+    }
+
+    /**
+     * Returns a primitive integer for the minor version component.
+     *
+     * @return the minor version component as an {@code int}
+     * @since 1.5
+     */
+    public int minorInt() {
+        return minor == null ? 0 : minor;
+    }
+
+    /**
+     * Returns a primitive integer for the version revision component.
+     *
+     * @return the version revision component as an {@code int}
+     * @since 1.5
+     */
+    public int revisionInt() {
+        return revision == null ? 0 : revision;
+    }
+
+    /**
+     * Indicates whether this is a snapshot version.
+     *
+     * @return {@code true} if this is a snapshot version; or
+     * {@code false} otherwise
+     * @since 1.5.8
+     */
+    public boolean isSnapshot() {
+        return qualifier().toUpperCase().contains(SNAPSHOT_QUALIFIER);
+    }
+
+    public int compareTo(VersionNumber other) {
+        if (majorInt() != other.majorInt()) {
+            return majorInt() - other.majorInt();
+        }
+        if (minorInt() != other.minorInt()) {
+            return minorInt() - other.minorInt();
+        }
+        if (revisionInt() != other.revisionInt()) {
+            return revisionInt() - other.revisionInt();
+        }
+
+        if (qualifier.equals(other.qualifier)) {
+            return 0;
+        } else if (qualifier.isEmpty()) {
+            return 1;
+        } else if (other.qualifier.isEmpty()) {
+            return -1;
+        }
+
+        return qualifier.toLowerCase().compareTo(other.qualifier.toLowerCase());
+    }
+
+    public String toString() {
+        var version = new StringBuilder();
+        version.append(majorInt());
+        if (minor != null || revision != null) {
+            version.append(".");
+            version.append(minorInt());
+        }
+        if (revision != null) {
+            version.append(".");
+            version.append(revisionInt());
+        }
+        if (qualifier != null && !qualifier.isEmpty()) {
+            version.append(separator);
+            version.append(qualifier);
+        }
+        return version.toString();
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        return other instanceof VersionNumber && compareTo((VersionNumber) other) == 0;
+    }
+
+    @Override
+    public int hashCode() {
+        int result = majorInt();
+        result = 31 * result + minorInt();
+        result = 31 * result + revisionInt();
+        result = 31 * result + Objects.hashCode(qualifier.toLowerCase());
+        return result;
+    }
+}
diff --git a/src/main/java/rife/bld/dependencies/Xml2MavenMetadata.java b/src/main/java/rife/bld/dependencies/Xml2MavenMetadata.java
new file mode 100644
index 0000000..51ad0b7
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/Xml2MavenMetadata.java
@@ -0,0 +1,120 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.SAXException;
+import rife.xml.Xml2Data;
+
+import java.util.*;
+import java.util.regex.Pattern;
+
+/**
+ * Parses an XML document to generate {@link MavenMetadata}, this is an internal class.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.8
+ */
+public class Xml2MavenMetadata extends Xml2Data implements MavenMetadata {
+    private VersionNumber latest_ = VersionNumber.UNKNOWN;
+    private VersionNumber release_ = VersionNumber.UNKNOWN;
+    private final List<VersionNumber> versions_;
+    private VersionNumber snapshot_ = VersionNumber.UNKNOWN;
+
+    private StringBuilder characterData_ = null;
+
+    private String snapshotTimestamp_ = null;
+    private Integer snapshotBuildNumber_ = null;
+
+    public Xml2MavenMetadata() {
+        versions_ = new ArrayList<>();
+    }
+
+    public VersionNumber getLatest() {
+        return latest_;
+    }
+
+    public VersionNumber getRelease() {
+        return release_;
+    }
+
+    public VersionNumber getSnapshot() {
+        return snapshot_;
+    }
+
+    public String getSnapshotTimestamp() {
+        return snapshotTimestamp_;
+    }
+
+    public Integer getSnapshotBuildNumber() {
+        return snapshotBuildNumber_;
+    }
+
+    public List<VersionNumber> getVersions() {
+        return versions_;
+    }
+
+    public void startElement(String uri, String localName, String qName, Attributes attributes) {
+        characterData_ = new StringBuilder();
+    }
+
+    public void endElement(String uri, String localName, String qName) {
+        switch (qName) {
+            case "latest" -> latest_ = VersionNumber.parse(characterData_.toString());
+            case "release" -> release_ = VersionNumber.parse(characterData_.toString());
+            case "version" -> versions_.add(VersionNumber.parse(characterData_.toString()));
+            case "timestamp" -> snapshotTimestamp_ = characterData_.toString();
+            case "buildNumber" -> snapshotBuildNumber_ = Integer.parseInt(characterData_.toString());
+            case "snapshot" -> {
+                if (!versions_.isEmpty()) {
+                    var version = versions_.get(0);
+                    var qualifier = VersionNumber.SNAPSHOT_QUALIFIER;
+                    if (snapshotTimestamp_ != null && snapshotBuildNumber_ != null) {
+                        qualifier = snapshotTimestamp_ + "-" + snapshotBuildNumber_;
+                    }
+                    snapshot_ = new VersionNumber(version.major(), version.minor(), version.revision(), qualifier);
+                }
+            }
+        }
+
+        characterData_ = null;
+    }
+
+    private static final Pattern MILESTONE = Pattern.compile("^m\\d*$");
+    private static final Pattern BETA = Pattern.compile("^b\\d*$");
+    private static final Pattern ALPHA = Pattern.compile("^a\\d*$");
+
+    public void endDocument()
+    throws SAXException {
+        // determine latest stable version by removing pre-release qualifiers
+        var filtered_versions = new TreeSet<VersionNumber>();
+        filtered_versions.addAll(versions_.stream()
+            .filter(v -> {
+                if (v.qualifier() == null) return true;
+                var q = v.qualifier().toLowerCase();
+                return !q.startsWith("rc") &&
+                       !q.startsWith("cr") &&
+                       !q.contains("milestone") &&
+                       !MILESTONE.matcher(q).matches() &&
+                       !q.contains("beta") &&
+                       !BETA.matcher(q).matches() &&
+                       !q.contains("alpha") &&
+                       !ALPHA.matcher(q).matches();
+            }).toList());
+
+        // only replace the stable version from the metadata when
+        // something remained from the filtering, then use the
+        // last version in the sorted set
+        if (!filtered_versions.isEmpty()) {
+            latest_ = filtered_versions.last();
+        }
+    }
+
+    public void characters(char[] ch, int start, int length) {
+        if (characterData_ != null) {
+            characterData_.append(String.copyValueOf(ch, start, length));
+        }
+    }
+}
diff --git a/src/main/java/rife/bld/dependencies/Xml2MavenPom.java b/src/main/java/rife/bld/dependencies/Xml2MavenPom.java
new file mode 100644
index 0000000..fd3e46e
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/Xml2MavenPom.java
@@ -0,0 +1,375 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import org.xml.sax.Attributes;
+import rife.xml.Xml2Data;
+
+import java.util.*;
+import java.util.regex.Pattern;
+
+/**
+ * Parses an XML document to retrieve POM information, this is an internal class.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.18
+ */
+class Xml2MavenPom extends Xml2Data {
+    private final Dependency parent_;
+    private final ArtifactRetriever retriever_;
+    private final List<Repository> repositories_;
+    private Map<Scope, Set<PomDependency>> resolvedDependencies_ = null;
+
+    private final Map<PomDependency, PomDependency> dependencyManagement_ = new LinkedHashMap<>();
+    private final Set<PomDependency> dependencies_ = new LinkedHashSet<>();
+    private final Map<String, String> properties_ = new HashMap<>();
+    private final Stack<String> elementStack_ = new Stack<>();
+    private ExclusionSet exclusions_ = null;
+
+    private boolean collectProperties_ = false;
+    private boolean collectDependencyManagement_ = false;
+    private boolean collectDependencies_ = false;
+    private boolean collectExclusions_ = false;
+
+    private StringBuilder characterData_ = null;
+
+    private String lastGroupId_ = null;
+    private String lastArtifactId_ = null;
+    private String lastVersion_ = null;
+    private String lastType_ = null;
+    private String lastClassifier_ = null;
+    private String lastScope_ = null;
+    private String lastOptional_ = null;
+    private String lastExclusionGroupId_ = null;
+    private String lastExclusionArtifactId_ = null;
+
+    Xml2MavenPom(Dependency parent, ArtifactRetriever retriever, List<Repository> repositories) {
+        parent_ = parent;
+        retriever_ = retriever;
+        repositories_ = repositories;
+    }
+
+    Set<PomDependency> getDependencies(Scope... scopes) {
+        if (scopes == null || scopes.length == 0) {
+            return Collections.emptySet();
+        }
+
+        var scopes_list = Arrays.asList(scopes);
+
+        if (resolvedDependencies_ == null) {
+            var resolved_dependencies = new HashMap<Scope, Set<PomDependency>>();
+
+            if (!dependencies_.isEmpty()) {
+                for (var dependency : dependencies_) {
+                    var managed_dependency = dependencyManagement_.get(dependency);
+                    var version = dependency.version();
+                    var dep_scope = dependency.scope();
+                    var optional = dependency.optional();
+                    var exclusions = dependency.exclusions();
+                    if (managed_dependency != null) {
+                        if (version == null) {
+                            version = managed_dependency.version();
+                        }
+                        if (dep_scope == null) {
+                            dep_scope = managed_dependency.scope();
+                        }
+                        if (optional == null) {
+                            optional = managed_dependency.optional();
+                        }
+                        if (exclusions == null) {
+                            exclusions = managed_dependency.exclusions();
+                        }
+                    }
+                    if (dep_scope == null) {
+                        dep_scope = "compile";
+                    }
+                    optional = resolveProperties(optional);
+                    if ("true".equals(optional)) {
+                        continue;
+                    }
+
+                    var resolved_dependency = new PomDependency(
+                        resolveProperties(dependency.groupId()),
+                        resolveProperties(dependency.artifactId()),
+                        resolveProperties(version),
+                        resolveProperties(dependency.classifier()),
+                        resolveProperties(dependency.type()),
+                        dep_scope,
+                        "false",
+                        exclusions,
+                        dependency.parent());
+                    if (resolved_dependency.type() == null || resolved_dependency.type().equals("jar")) {
+                        var scope = Scope.valueOf(resolved_dependency.scope());
+                        if (scopes_list.contains(scope)) {
+                            var resolved_dependency_set = resolved_dependencies.computeIfAbsent(scope, k -> new LinkedHashSet<>());
+                            resolved_dependency_set.add(resolved_dependency);
+                        }
+                    }
+                }
+            }
+
+            resolvedDependencies_ = resolved_dependencies;
+        }
+
+        var result = new LinkedHashSet<PomDependency>();
+        for (var scope : scopes) {
+            var deps = resolvedDependencies_.get(scope);
+            if (deps != null) {
+                result.addAll(deps);
+            }
+        }
+
+        return result;
+    }
+
+    PomDependency resolveDependency(PomDependency dependency) {
+        return new PomDependency(
+            resolveProperties(dependency.groupId()),
+            resolveProperties(dependency.artifactId()),
+            resolveProperties(dependency.version()),
+            resolveProperties(dependency.classifier()),
+            resolveProperties(dependency.type()),
+            dependency.scope(),
+            resolveProperties(dependency.optional()),
+            dependency.exclusions(),
+            dependency.parent());
+    }
+
+    public void startElement(String uri, String localName, String qName, Attributes attributes) {
+        characterData_ = new StringBuilder();
+
+        switch (qName) {
+            case "parent" -> resetState();
+            case "properties" -> {
+                if (isChildOfProject()) {
+                    collectProperties_ = true;
+                }
+            }
+            case "dependencyManagement" -> {
+                if (isChildOfProject()) {
+                    collectDependencyManagement_ = true;
+                }
+            }
+            case "dependencies" -> {
+                if (isChildOfProject()) {
+                    resetState();
+                    collectDependencies_ = true;
+                }
+            }
+            case "exclusions" -> {
+                if (collectDependencyManagement_ || collectDependencies_) {
+                    collectExclusions_ = true;
+                    exclusions_ = new ExclusionSet();
+                }
+            }
+            case "dependency" -> {
+                if (collectDependencies_) resetState();
+            }
+        }
+
+        elementStack_.push(qName);
+    }
+
+    public void endElement(String uri, String localName, String qName) {
+        elementStack_.pop();
+
+        switch (qName) {
+            case "parent" -> {
+                if (isChildOfProject()) {
+                    var parent_dependency = new Dependency(resolveProperties(lastGroupId_), resolveProperties(lastArtifactId_), VersionNumber.parse(resolveProperties(lastVersion_)));
+                    var parent = new DependencyResolver(retriever_, repositories_, parent_dependency).getMavenPom(parent_);
+
+                    parent.properties_.keySet().removeAll(properties_.keySet());
+                    properties_.putAll(parent.properties_);
+
+                    parent.dependencyManagement_.keySet().removeAll(dependencyManagement_.keySet());
+                    dependencyManagement_.putAll(parent.dependencyManagement_);
+
+                    parent.dependencies_.removeAll(dependencies_);
+                    dependencies_.addAll(parent.dependencies_);
+
+                    resetState();
+                }
+            }
+            case "properties" -> collectProperties_ = false;
+            case "dependencyManagement" -> collectDependencyManagement_ = false;
+            case "dependencies" -> collectDependencies_ = false;
+            case "exclusions" -> collectExclusions_ = false;
+            case "exclusion" -> {
+                if (collectExclusions_) {
+                    exclusions_.add(new DependencyExclusion(lastExclusionGroupId_, lastExclusionArtifactId_));
+                }
+            }
+            case "dependency" -> {
+                var dependency = new PomDependency(lastGroupId_, lastArtifactId_, lastVersion_, lastClassifier_, lastType_, lastScope_, lastOptional_, exclusions_, parent_);
+                if (collectDependencyManagement_) {
+                    if (dependency.isPomImport()) {
+                        var import_dependency = new Dependency(resolveProperties(lastGroupId_), resolveProperties(lastArtifactId_), VersionNumber.parse(resolveProperties(lastVersion_)));
+                        var imported_pom = new DependencyResolver(retriever_, repositories_, import_dependency).getMavenPom(parent_);
+                        imported_pom.dependencyManagement_.keySet().removeAll(dependencyManagement_.keySet());
+                        var resolved_dependencies = new LinkedHashSet<PomDependency>();
+                        for (var managed_dependency : imported_pom.dependencyManagement_.keySet()) {
+                            resolved_dependencies.add(imported_pom.resolveDependency(managed_dependency));
+                        }
+
+                        resolved_dependencies.removeAll(dependencyManagement_.keySet());
+                        for (var resolved_dependency : resolved_dependencies) {
+                            dependencyManagement_.put(resolved_dependency, resolved_dependency);
+                        }
+                    } else {
+                        dependencyManagement_.put(dependency, dependency);
+                    }
+                } else if (collectDependencies_) {
+                    dependencies_.add(dependency);
+                }
+                resetState();
+            }
+            case "groupId" -> {
+                if (isChildOfProject()) {
+                    addProjectProperty(qName);
+                } else if (isChildOfParent() || isChildOfDependency()) {
+                    lastGroupId_ = getCharacterData();
+                } else if (collectExclusions_ && isChildOfExclusion()) {
+                    lastExclusionGroupId_ = getCharacterData();
+                }
+            }
+            case "artifactId" -> {
+                if (isChildOfProject()) {
+                    addProjectProperty(qName);
+                } else if (isChildOfParent() || isChildOfDependency()) {
+                    lastArtifactId_ = getCharacterData();
+                } else if (collectExclusions_ && isChildOfExclusion()) {
+                    lastExclusionArtifactId_ = getCharacterData();
+                }
+            }
+            case "version" -> {
+                if (isChildOfProject()) {
+                    addProjectProperty(qName);
+                } else if (isChildOfParent() || isChildOfDependency()) {
+                    lastVersion_ = getCharacterData();
+                }
+            }
+            case "type" -> {
+                if (isChildOfDependency()) {
+                    lastType_ = getCharacterData();
+                }
+            }
+            case "classifier" -> {
+                if (isChildOfDependency()) {
+                    lastClassifier_ = getCharacterData();
+                }
+            }
+            case "scope" -> {
+                if (isChildOfDependency()) {
+                    lastScope_ = getCharacterData();
+                }
+            }
+            case "optional" -> {
+                if (isChildOfDependency()) {
+                    lastOptional_ = getCharacterData();
+                }
+            }
+            case "packaging", "name", "description", "url", "inceptionYear" -> {
+                if (isChildOfProject()) {
+                    addProjectProperty(qName);
+                }
+            }
+            default -> {
+                if (collectProperties_) {
+                    properties_.put(qName, getCharacterData());
+                }
+            }
+        }
+
+        characterData_ = null;
+    }
+
+    private boolean isChildOfProject() {
+        return elementStack_.peek().equals("project");
+    }
+
+    private boolean isChildOfParent() {
+        return elementStack_.peek().equals("parent");
+    }
+
+    private boolean isChildOfDependency() {
+        return elementStack_.peek().equals("dependency");
+    }
+
+    private boolean isChildOfExclusion() {
+        return elementStack_.peek().equals("exclusion");
+    }
+
+    private void addProjectProperty(String name) {
+        properties_.put("project." + name, getCharacterData());
+    }
+
+    private String getCharacterData() {
+        if (characterData_ == null) {
+            return null;
+        }
+
+        var result = characterData_.toString().trim();
+        if (result.isEmpty()) {
+            return null;
+        }
+        return result;
+    }
+
+    private static final Pattern MAVEN_PROPERTY = Pattern.compile("\\$\\{([^<>{}]+)}");
+
+    private String resolveProperties(String data) {
+        if (data == null) {
+            return null;
+        }
+
+        boolean replaced;
+        do {
+            replaced = false;
+
+            var processed_data = new StringBuilder();
+            var matcher = MAVEN_PROPERTY.matcher(data);
+            var last_end = 0;
+            while (matcher.find()) {
+                if (matcher.groupCount() == 1) {
+                    var property = matcher.group(1);
+                    if (properties_.containsKey(property)) {
+                        processed_data.append(data, last_end, matcher.start());
+                        processed_data.append(properties_.get(property));
+                        last_end = matcher.end();
+
+                        replaced = true;
+                    }
+                }
+            }
+            if (last_end < data.length()) {
+                processed_data.append(data.substring(last_end));
+            }
+
+            data = processed_data.toString();
+        } while (replaced);
+
+        return data;
+    }
+
+    private void resetState() {
+        lastGroupId_ = null;
+        lastArtifactId_ = null;
+        lastVersion_ = null;
+        lastType_ = null;
+        lastClassifier_ = null;
+        lastScope_ = null;
+        lastOptional_ = null;
+        lastExclusionArtifactId_ = null;
+        lastExclusionGroupId_ = null;
+        exclusions_ = null;
+    }
+
+    public void characters(char[] ch, int start, int length) {
+        if (characterData_ != null) {
+            characterData_.append(String.copyValueOf(ch, start, length));
+        }
+    }
+}
diff --git a/src/main/java/rife/bld/dependencies/exceptions/ArtifactNotFoundException.java b/src/main/java/rife/bld/dependencies/exceptions/ArtifactNotFoundException.java
new file mode 100644
index 0000000..77d2dd6
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/exceptions/ArtifactNotFoundException.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies.exceptions;
+
+import rife.bld.dependencies.Dependency;
+
+import java.io.Serial;
+
+public class ArtifactNotFoundException extends DependencyException {
+    @Serial private static final long serialVersionUID = 3137804373567469249L;
+
+    private final Dependency dependency_;
+    private final String location_;
+
+    public ArtifactNotFoundException(Dependency dependency, String location) {
+        super("Couldn't find artifact for dependency '" + dependency + "' at " + location);
+
+        dependency_ = dependency;
+        location_ = location;
+    }
+
+    public Dependency getDependency() {
+        return dependency_;
+    }
+
+    public String getLocation() {
+        return location_;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/dependencies/exceptions/ArtifactRetrievalErrorException.java b/src/main/java/rife/bld/dependencies/exceptions/ArtifactRetrievalErrorException.java
new file mode 100644
index 0000000..dfbae4f
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/exceptions/ArtifactRetrievalErrorException.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies.exceptions;
+
+import rife.bld.dependencies.Dependency;
+
+import java.io.Serial;
+
+public class ArtifactRetrievalErrorException extends DependencyException {
+    @Serial private static final long serialVersionUID = 5570184718213503548L;
+
+    private final Dependency dependency_;
+    private final String location_;
+
+    public ArtifactRetrievalErrorException(Dependency dependency, String location, Throwable e) {
+        super("Unexpected error while retrieving artifact for dependency '" + dependency + "' from '" + location + "'", e);
+
+        dependency_ = dependency;
+        location_ = location;
+    }
+
+    public Dependency getDependency() {
+        return dependency_;
+    }
+
+    public String getLocation() {
+        return location_;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/dependencies/exceptions/DependencyException.java b/src/main/java/rife/bld/dependencies/exceptions/DependencyException.java
new file mode 100644
index 0000000..222f5a5
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/exceptions/DependencyException.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies.exceptions;
+
+import java.io.Serial;
+
+public class DependencyException extends RuntimeException {
+    @Serial private static final long serialVersionUID = 7683888067001718316L;
+
+    public DependencyException(String message) {
+        super(message);
+    }
+
+    public DependencyException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public DependencyException(Throwable cause) {
+        super(cause);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/dependencies/exceptions/DependencyTransferException.java b/src/main/java/rife/bld/dependencies/exceptions/DependencyTransferException.java
new file mode 100644
index 0000000..febbe4d
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/exceptions/DependencyTransferException.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies.exceptions;
+
+import rife.bld.dependencies.Dependency;
+
+import java.io.File;
+import java.io.Serial;
+
+public class DependencyTransferException extends DependencyException {
+    @Serial private static final long serialVersionUID = 2128741620203670830L;
+
+    private final Dependency dependency_;
+    private final String location_;
+    private final File destination_;
+
+    public DependencyTransferException(Dependency dependency, String location, File destination, Throwable e) {
+        super("Unable to transfer dependency '" + dependency + "' from '" + location + "' into '" + destination + "'", e);
+
+        dependency_ = dependency;
+        location_ = location;
+        destination_ = destination;
+    }
+
+    public Dependency getDependency() {
+        return dependency_;
+    }
+
+    public String getLocation() {
+        return location_;
+    }
+
+    public File getDestination() {
+        return destination_;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/dependencies/exceptions/DependencyXmlParsingErrorException.java b/src/main/java/rife/bld/dependencies/exceptions/DependencyXmlParsingErrorException.java
new file mode 100644
index 0000000..cc3c30b
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/exceptions/DependencyXmlParsingErrorException.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies.exceptions;
+
+import rife.bld.dependencies.Dependency;
+import rife.tools.StringUtils;
+
+import java.io.Serial;
+import java.util.Set;
+
+public class DependencyXmlParsingErrorException extends DependencyException {
+    @Serial private static final long serialVersionUID = -1050469071912675264L;
+
+    private final Dependency dependency_;
+    private final String location_;
+    private final Set<String> errors_;
+
+    public DependencyXmlParsingErrorException(Dependency dependency, String location, Set<String> errors) {
+        super("Unable to parse artifact document for dependency '" + dependency + "' from '" + location + "' :\n" + StringUtils.join(errors, "\n"));
+
+        dependency_ = dependency;
+        location_ = location;
+        errors_ = errors;
+    }
+
+    public Dependency getDependency() {
+        return dependency_;
+    }
+
+    public String getLocation() {
+        return location_;
+    }
+
+    public Set<String> getErrors() {
+        return errors_;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/dependencies/exceptions/package-info.java b/src/main/java/rife/bld/dependencies/exceptions/package-info.java
new file mode 100644
index 0000000..90d56ca
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/exceptions/package-info.java
@@ -0,0 +1,10 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+
+/**
+ * Provides exception classes build system dependency handling.
+ * @since 1.5
+ */
+package rife.bld.dependencies.exceptions;
\ No newline at end of file
diff --git a/src/main/java/rife/bld/dependencies/package-info.java b/src/main/java/rife/bld/dependencies/package-info.java
new file mode 100644
index 0000000..ec9e192
--- /dev/null
+++ b/src/main/java/rife/bld/dependencies/package-info.java
@@ -0,0 +1,10 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+
+/**
+ * Provides functionalities to resolve and retrieve dependency artifacts.
+ * @since 1.5
+ */
+package rife.bld.dependencies;
\ No newline at end of file
diff --git a/src/main/java/rife/bld/help/CleanHelp.java b/src/main/java/rife/bld/help/CleanHelp.java
new file mode 100644
index 0000000..9cb3550
--- /dev/null
+++ b/src/main/java/rife/bld/help/CleanHelp.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the clean command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class CleanHelp implements CommandHelp {
+    public String getSummary() {
+        return "Cleans the build files";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Cleans the build files.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/CompileHelp.java b/src/main/java/rife/bld/help/CompileHelp.java
new file mode 100644
index 0000000..ddc5f05
--- /dev/null
+++ b/src/main/java/rife/bld/help/CompileHelp.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the compile command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class CompileHelp implements CommandHelp {
+    public String getSummary() {
+        return "Compiles the project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Compiles the project.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/CreateBaseHelp.java b/src/main/java/rife/bld/help/CreateBaseHelp.java
new file mode 100644
index 0000000..78a40f5
--- /dev/null
+++ b/src/main/java/rife/bld/help/CreateBaseHelp.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the create-blank command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.20
+ */
+public class CreateBaseHelp implements CommandHelp {
+    public String getSummary() {
+        return "Creates a new baseline Java project with minimal commands";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Creates a new baseline Java project with minimal commands.
+                        
+            Usage : ${topic} <package> <name>
+              package  The package of the project to create
+              name     The name of the project to create""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/CreateBlankHelp.java b/src/main/java/rife/bld/help/CreateBlankHelp.java
new file mode 100644
index 0000000..3afa215
--- /dev/null
+++ b/src/main/java/rife/bld/help/CreateBlankHelp.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the create-blank command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class CreateBlankHelp implements CommandHelp {
+    public String getSummary() {
+        return "Creates a new blank Java project with standard commands";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Creates a new blank Java project with standard commands.
+                        
+            Usage : ${topic} <package> <name>
+              package  The package of the project to create
+              name     The name of the project to create""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/CreateLibHelp.java b/src/main/java/rife/bld/help/CreateLibHelp.java
new file mode 100644
index 0000000..9163df3
--- /dev/null
+++ b/src/main/java/rife/bld/help/CreateLibHelp.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the create-lib command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.6
+ */
+public class CreateLibHelp implements CommandHelp {
+    public String getSummary() {
+        return "Creates a new Java library with minimal commands";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Creates a new library Java project with minimal commands.
+                        
+            Usage : ${topic} <package> <name>
+              package  The package of the project to create
+              name     The name of the project to create""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/CreateRife2Help.java b/src/main/java/rife/bld/help/CreateRife2Help.java
new file mode 100644
index 0000000..e9eb5b8
--- /dev/null
+++ b/src/main/java/rife/bld/help/CreateRife2Help.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the create command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class CreateRife2Help implements CommandHelp {
+    public String getSummary() {
+        return "Creates a new RIFE2 project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Creates a new RIFE2 project.
+                        
+            Usage : ${topic} <package> <name>
+              package  The package of the project to create
+              name     The name of the project to create""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/DependencyTreeHelp.java b/src/main/java/rife/bld/help/DependencyTreeHelp.java
new file mode 100644
index 0000000..9d06f1b
--- /dev/null
+++ b/src/main/java/rife/bld/help/DependencyTreeHelp.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the dependency tree command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.21
+ */
+public class DependencyTreeHelp implements CommandHelp {
+    public String getSummary() {
+        return "Outputs the dependency tree of the project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Outputs the dependency tree of the project
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/DownloadHelp.java b/src/main/java/rife/bld/help/DownloadHelp.java
new file mode 100644
index 0000000..85726e5
--- /dev/null
+++ b/src/main/java/rife/bld/help/DownloadHelp.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the download command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class DownloadHelp implements CommandHelp {
+    public String getSummary() {
+        return "Downloads all dependencies of the project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Downloads all dependencies of the project
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/HelpHelp.java b/src/main/java/rife/bld/help/HelpHelp.java
new file mode 100644
index 0000000..5e5ca7b
--- /dev/null
+++ b/src/main/java/rife/bld/help/HelpHelp.java
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+
+/**
+ * Provides help for the help command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class HelpHelp implements CommandHelp {
+    public String getSummary() {
+        return "Provides help about any of the other commands";
+    }
+}
diff --git a/src/main/java/rife/bld/help/JUnitHelp.java b/src/main/java/rife/bld/help/JUnitHelp.java
new file mode 100644
index 0000000..deca11c
--- /dev/null
+++ b/src/main/java/rife/bld/help/JUnitHelp.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the JUnit test command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.20
+ */
+public class JUnitHelp implements CommandHelp {
+    public String getSummary() {
+        return "Tests the project with JUnit (takes options)";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Tests the project with JUnit.
+            
+            Additional JUnit console launcher options can be
+            provided after the command.
+            
+            These commandline options are provided by this command:
+            --junit-help   see the full list of JUnit launcher options
+            --junit-clear  clear the JUnit launcher options the build uses
+                           (needs to be provided before other options)
+                        
+            Usage : ${topic} [OPTIONS]""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/JarHelp.java b/src/main/java/rife/bld/help/JarHelp.java
new file mode 100644
index 0000000..9e1726f
--- /dev/null
+++ b/src/main/java/rife/bld/help/JarHelp.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the jar command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class JarHelp implements CommandHelp {
+    public String getSummary() {
+        return "Creates a jar archive for the project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Creates a jar archive for the project.
+            The standard jar command will automatically also execute
+            the compile and precompile commands beforehand.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/JarJavadocHelp.java b/src/main/java/rife/bld/help/JarJavadocHelp.java
new file mode 100644
index 0000000..4b84059
--- /dev/null
+++ b/src/main/java/rife/bld/help/JarJavadocHelp.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the jar-javadoc command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.10
+ */
+public class JarJavadocHelp implements CommandHelp {
+    public String getSummary() {
+        return "Creates a javadoc jar archive for the project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Creates a javadoc jar archive for the project.
+            The standard jar-javadoc command will automatically also execute
+            the compile and javadoc commands beforehand.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/JarSourcesHelp.java b/src/main/java/rife/bld/help/JarSourcesHelp.java
new file mode 100644
index 0000000..c03eb39
--- /dev/null
+++ b/src/main/java/rife/bld/help/JarSourcesHelp.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the jar-sources command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.10
+ */
+public class JarSourcesHelp implements CommandHelp {
+    public String getSummary() {
+        return "Creates a sources jar archive for the project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Creates a sources jar archive for the project.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/JavadocHelp.java b/src/main/java/rife/bld/help/JavadocHelp.java
new file mode 100644
index 0000000..2105f0b
--- /dev/null
+++ b/src/main/java/rife/bld/help/JavadocHelp.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the javadoc command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.10
+ */
+public class JavadocHelp implements CommandHelp {
+    public String getSummary() {
+        return "Generates javadoc for the project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Generates javadoc for the project.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/PrecompileHelp.java b/src/main/java/rife/bld/help/PrecompileHelp.java
new file mode 100644
index 0000000..c2d7b7c
--- /dev/null
+++ b/src/main/java/rife/bld/help/PrecompileHelp.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the precompile command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class PrecompileHelp implements CommandHelp {
+    public String getSummary() {
+        return "Pre-compiles RIFE2 templates to class files";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Pre-compiles RIFE2 templates to class files
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/PublishHelp.java b/src/main/java/rife/bld/help/PublishHelp.java
new file mode 100644
index 0000000..189c01c
--- /dev/null
+++ b/src/main/java/rife/bld/help/PublishHelp.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the publish command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.7
+ */
+public class PublishHelp implements CommandHelp {
+    public String getSummary() {
+        return "Publishes the artifacts of your project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Publishes the artifacts of the project to the publication
+            repository.
+            The standard publish command will automatically also execute
+            the jar, jar-sources and jar-javadoc commands beforehand.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/help/PublishWebHelp.java b/src/main/java/rife/bld/help/PublishWebHelp.java
new file mode 100644
index 0000000..f7e5127
--- /dev/null
+++ b/src/main/java/rife/bld/help/PublishWebHelp.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the publish web command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.7
+ */
+public class PublishWebHelp implements CommandHelp {
+    public String getSummary() {
+        return "Publishes the artifacts of your web project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Publishes the artifacts of the web project to the publication
+            repository.
+            The standard web publish command will automatically also execute
+            the jar, jar-sources, jar-javadoc, uberjar and war commands
+            beforehand.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/help/PurgeHelp.java b/src/main/java/rife/bld/help/PurgeHelp.java
new file mode 100644
index 0000000..6f34097
--- /dev/null
+++ b/src/main/java/rife/bld/help/PurgeHelp.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the purge command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class PurgeHelp implements CommandHelp {
+    public String getSummary() {
+        return "Purges all unused artifacts from the project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Purges all the unused dependency artifacts from the project
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/RunHelp.java b/src/main/java/rife/bld/help/RunHelp.java
new file mode 100644
index 0000000..7234807
--- /dev/null
+++ b/src/main/java/rife/bld/help/RunHelp.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the run command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class RunHelp implements CommandHelp {
+    public String getSummary() {
+        return "Runs the project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Runs the project.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/TestHelp.java b/src/main/java/rife/bld/help/TestHelp.java
new file mode 100644
index 0000000..417bbfc
--- /dev/null
+++ b/src/main/java/rife/bld/help/TestHelp.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the test command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class TestHelp implements CommandHelp {
+    public String getSummary() {
+        return "Tests the project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Tests the project.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/UberJarHelp.java b/src/main/java/rife/bld/help/UberJarHelp.java
new file mode 100644
index 0000000..096675b
--- /dev/null
+++ b/src/main/java/rife/bld/help/UberJarHelp.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the uberjar command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class UberJarHelp implements CommandHelp {
+    public String getSummary() {
+        return "Creates an UberJar archive for the project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Creates an UberJar archive for the project.
+            The standard uberjar command will automatically also execute
+            the jar command beforehand.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/UpdatesHelp.java b/src/main/java/rife/bld/help/UpdatesHelp.java
new file mode 100644
index 0000000..c61a993
--- /dev/null
+++ b/src/main/java/rife/bld/help/UpdatesHelp.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the updates command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class UpdatesHelp implements CommandHelp {
+    public String getSummary() {
+        return "Checks for updates of the project dependencies";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Checks which updates are available for the project dependencies.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/UpgradeHelp.java b/src/main/java/rife/bld/help/UpgradeHelp.java
new file mode 100644
index 0000000..858c037
--- /dev/null
+++ b/src/main/java/rife/bld/help/UpgradeHelp.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the upgrade command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class UpgradeHelp implements CommandHelp {
+    public String getSummary() {
+        return "Upgrades the bld wrapper to the latest version";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Upgrades the bld wrapper to the latest version.
+            This command should be executed in the root directory of
+            your project.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/VersionHelp.java b/src/main/java/rife/bld/help/VersionHelp.java
new file mode 100644
index 0000000..10b2dda
--- /dev/null
+++ b/src/main/java/rife/bld/help/VersionHelp.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the version command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.2
+ */
+public class VersionHelp implements CommandHelp {
+    public String getSummary() {
+        return "Outputs the version of the build system";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Outputs the version of the build system.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/WarHelp.java b/src/main/java/rife/bld/help/WarHelp.java
new file mode 100644
index 0000000..cdff0e1
--- /dev/null
+++ b/src/main/java/rife/bld/help/WarHelp.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.help;
+
+import rife.bld.CommandHelp;
+import rife.tools.StringUtils;
+
+/**
+ * Provides help for the war command.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class WarHelp implements CommandHelp {
+    public String getSummary() {
+        return "Creates a war archive for the project";
+    }
+
+    public String getDescription(String topic) {
+        return StringUtils.replace("""
+            Creates a war archive for the project.
+            The standard war command will automatically also execute
+            the jar command beforehand.
+                        
+            Usage : ${topic}""", "${topic}", topic);
+    }
+}
diff --git a/src/main/java/rife/bld/help/package-info.java b/src/main/java/rife/bld/help/package-info.java
new file mode 100644
index 0000000..83a15ce
--- /dev/null
+++ b/src/main/java/rife/bld/help/package-info.java
@@ -0,0 +1,10 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+
+/**
+ * Provides help texts for build commands.
+ * @since 1.5
+ */
+package rife.bld.help;
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/AbstractCreateOperation.java b/src/main/java/rife/bld/operations/AbstractCreateOperation.java
new file mode 100644
index 0000000..1d849d5
--- /dev/null
+++ b/src/main/java/rife/bld/operations/AbstractCreateOperation.java
@@ -0,0 +1,526 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BldVersion;
+import rife.bld.Project;
+import rife.bld.operations.exceptions.OperationOptionException;
+import rife.bld.wrapper.Wrapper;
+import rife.template.TemplateFactory;
+import rife.tools.FileUtils;
+import rife.tools.StringUtils;
+import rife.tools.exceptions.FileUtilsErrorException;
+import rife.validation.ValidityChecks;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.List;
+
+/**
+ * Provides the baseline foundation for creating a project structure.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public abstract class AbstractCreateOperation<T extends AbstractCreateOperation<T, P>, P extends Project> extends AbstractOperation<AbstractCreateOperation<T, P>> {
+    final String templateBase_;
+
+    File workDirectory_ = new File(System.getProperty("user.dir"));
+    String packageName_;
+    String projectName_;
+    boolean downloadDependencies_;
+
+    P project_;
+
+    String projectClassName_;
+    String projectBuildName_;
+    String projectMainName_;
+    String projectMainUberName_;
+    String projectTestName_;
+
+    File bldPackageDirectory_;
+    File mainPackageDirectory_;
+    File testPackageDirectory_;
+    File ideaDirectory_;
+    File ideaLibrariesDirectory_;
+    File ideaRunConfigurationsDirectory_;
+    File vscodeDirectory_;
+
+    protected AbstractCreateOperation(String templateBase) {
+        templateBase_ = templateBase;
+    }
+
+    /**
+     * Performs the creation operation.
+     *
+     * @throws FileUtilsErrorException when an error occurred during the creation operation
+     * @throws IOException             when an error occurred during the creation operation
+     * @since 1.5
+     */
+    public void execute()
+    throws FileUtilsErrorException, IOException {
+        if (packageName() == null || projectName() == null) {
+            System.err.println("ERROR: Missing package or project name.");
+            return;
+        }
+
+        executeConfigure();
+        executeCreateProjectStructure();
+        executePopulateProjectStructure();
+        executePopulateIdeaProject();
+        executePopulateVscodeProject();
+        if (downloadDependencies()) {
+            executeDownloadDependencies();
+        }
+        if (!silent()) {
+            System.out.println("The project was successfully created at '" + project_.workDirectory() + "'.");
+        }
+    }
+
+    /**
+     * Create a blueprint of the project.
+     *
+     * @return a blueprint for project creation
+     * @since 1.5
+     */
+    protected abstract P createProjectBlueprint();
+
+    /**
+     * Part of the {@link #execute} operation, configures the project.
+     *
+     * @since 1.5
+     */
+    protected void executeConfigure() {
+        project_ = createProjectBlueprint();
+
+        // standard names
+        projectClassName_ = StringUtils.capitalize(project_.name());
+        projectBuildName_ = projectBuildClassName(projectClassName_);
+        projectMainName_ = projectMainClassName(projectClassName_);
+        projectMainUberName_ = projectMainUberClassName(projectClassName_);
+        projectTestName_ = projectTestClassName(projectClassName_);
+
+        // create the main project structure
+        ideaDirectory_ = new File(project_.workDirectory(), ".idea");
+        ideaLibrariesDirectory_ = new File(ideaDirectory_, "libraries");
+        ideaRunConfigurationsDirectory_ = new File(ideaDirectory_, "runConfigurations");
+        vscodeDirectory_ = new File(project_.workDirectory(), ".vscode");
+
+        var package_dir = project_.pkg().replace('.', File.separatorChar);
+        bldPackageDirectory_ = new File(project_.srcBldJavaDirectory(), package_dir);
+        mainPackageDirectory_ = new File(project_.srcMainJavaDirectory(), package_dir);
+        testPackageDirectory_ = new File(project_.srcTestJavaDirectory(), package_dir);
+    }
+
+    /**
+     * Generates the build class name from the project class name
+     * @param projectClassName the project class name
+     * @return the generated build class name
+     * @since 1.6
+     */
+    protected String projectBuildClassName(String projectClassName) {
+        return projectClassName + "Build";
+    }
+
+    /**
+     * Generates the main class name from the project class name
+     * @param projectClassName the project class name
+     * @return the generated main class name
+     * @since 1.6
+     */
+    protected String projectMainClassName(String projectClassName) {
+        return projectClassName + "Main";
+    }
+
+    /**
+     * Generates the main uber class name from the project class name
+     * @param projectClassName the project class name
+     * @return the generated main uber class name
+     * @since 1.6
+     */
+    protected String projectMainUberClassName(String projectClassName) {
+        return projectClassName + "Main";
+    }
+
+    /**
+     * Generates the test class name from the project class name
+     * @param projectClassName the project class name
+     * @return the generated test class name
+     * @since 1.6
+     */
+    protected String projectTestClassName(String projectClassName) {
+        return projectClassName + "Test";
+    }
+
+    /**
+     * Part of the {@link #execute} operation, creates the project structure.
+     *
+     * @since 1.5
+     */
+    protected void executeCreateProjectStructure() {
+        project_.createProjectStructure();
+
+        bldPackageDirectory_.mkdirs();
+        mainPackageDirectory_.mkdirs();
+        testPackageDirectory_.mkdirs();
+
+        ideaDirectory_.mkdirs();
+        ideaLibrariesDirectory_.mkdirs();
+        ideaRunConfigurationsDirectory_.mkdirs();
+        vscodeDirectory_.mkdirs();
+    }
+
+
+    /**
+     * Part of the {@link #execute} operation, populates the project structure.
+     *
+     * @since 1.5
+     */
+    protected void executePopulateProjectStructure()
+    throws FileUtilsErrorException, IOException {
+        // project gitignore
+        FileUtils.writeString(
+            TemplateFactory.TXT.get(templateBase_ + "project_gitignore").getContent(),
+            new File(project_.workDirectory(), ".gitignore"));
+
+        // project main
+        var site_template = TemplateFactory.TXT.get(templateBase_ + "project_main");
+        site_template.setValue("package", project_.pkg());
+        site_template.setValue("projectMain", projectMainName_);
+        var project_main_file = new File(mainPackageDirectory_, projectMainName_ + ".java");
+        FileUtils.writeString(site_template.getContent(), project_main_file);
+
+        // project test
+        var test_template = TemplateFactory.TXT.get(templateBase_ + "project_test");
+        test_template.setValue("package", project_.pkg());
+        test_template.setValue("projectTest", projectTestName_);
+        test_template.setValue("projectMain", projectMainName_);
+        if (test_template.hasValueId("project")) {
+            test_template.setValue("project", projectClassName_);
+        }
+        var project_test_file = new File(testPackageDirectory_, projectTestName_ + ".java");
+        FileUtils.writeString(test_template.getContent(), project_test_file);
+
+        // project build
+        var build_template = TemplateFactory.TXT.get(templateBase_ + "project_build");
+        build_template.setValue("projectBuild", projectBuildName_);
+        build_template.setValue("package", project_.pkg());
+        build_template.setValue("project", projectClassName_);
+        if (build_template.hasValueId("projectMain")) {
+            build_template.setValue("projectMain", projectMainName_);
+        }
+        if (build_template.hasValueId("projectTest")) {
+            build_template.setValue("projectTest", projectTestName_);
+        }
+        if (build_template.hasValueId("projectMainUber")) {
+            build_template.setValue("projectMainUber", projectMainUberName_);
+        }
+        for (var entry : project_.dependencies().entrySet()) {
+            build_template.blankValue("dependencies");
+
+            for (var dependency : entry.getValue()) {
+                build_template.setValue("groupId", dependency.groupId());
+                build_template.setValue("artifactId", dependency.artifactId());
+                var version = dependency.version();
+                var version_string = version.major() + "," + version.minor() + "," + version.revision();
+                if (!version.qualifier().isEmpty()) {
+                    version_string += ",\"" + version.qualifier() + "\"";
+                }
+                build_template.setValue("version", version_string);
+                build_template.appendBlock("dependencies", "dependency");
+            }
+            build_template.setValue("name", entry.getKey().name());
+            build_template.appendBlock("scopes", "scope");
+        }
+        var project_build_file = new File(bldPackageDirectory_, projectBuildName_ + ".java");
+        FileUtils.writeString(build_template.getContent(), project_build_file);
+
+        // build shell scripts
+        var build_sh_template = TemplateFactory.TXT.get("bld.bld");
+        build_sh_template.setValue("projectBuild", projectBuildName_);
+        build_sh_template.setValue("package", project_.pkg());
+        var build_sh_file = new File(project_.workDirectory(), "bld");
+        FileUtils.writeString(build_sh_template.getContent(), build_sh_file);
+        build_sh_file.setExecutable(true);
+
+        var build_bat_template = TemplateFactory.TXT.get("bld.bld_bat");
+        build_bat_template.setValue("projectBuild", projectBuildName_);
+        build_bat_template.setValue("package", project_.pkg());
+        var build_bat_file = new File(project_.workDirectory(), "bld.bat");
+        FileUtils.writeString(build_bat_template.getContent(), build_bat_file);
+
+        // create the wrapper files
+        new Wrapper().createWrapperFiles(project_.libBldDirectory(), BldVersion.getVersion());
+    }
+
+    /**
+     * Part of the {@link #execute} operation, populates the IDEA project structure.
+     *
+     * @since 1.5
+     */
+    protected void executePopulateIdeaProject()
+    throws FileUtilsErrorException {
+        // IDEA project files
+        FileUtils.writeString(
+            TemplateFactory.XML.get(templateBase_ + "idea.app_iml").getContent(),
+            new File(ideaDirectory_, "app.iml"));
+        FileUtils.writeString(
+            TemplateFactory.XML.get(templateBase_ + "idea.bld_iml").getContent(),
+            new File(ideaDirectory_, "bld.iml"));
+        FileUtils.writeString(
+            TemplateFactory.XML.get(templateBase_ + "idea.misc").getContent(),
+            new File(ideaDirectory_, "misc.xml"));
+        FileUtils.writeString(
+            TemplateFactory.XML.get(templateBase_ + "idea.modules").getContent(),
+            new File(ideaDirectory_, "modules.xml"));
+
+        var bld_xml_template = TemplateFactory.XML.get(templateBase_ + "idea.libraries.bld");
+        bld_xml_template.setValue("version", BldVersion.getVersion());
+        var bld_xml_file = new File(ideaLibrariesDirectory_, "bld.xml");
+        FileUtils.writeString(bld_xml_template.getContent(), bld_xml_file);
+
+        FileUtils.writeString(
+            TemplateFactory.XML.get(templateBase_ + "idea.libraries.compile").getContent(),
+            new File(ideaLibrariesDirectory_, "compile.xml"));
+        FileUtils.writeString(
+            TemplateFactory.XML.get(templateBase_ + "idea.libraries.runtime").getContent(),
+            new File(ideaLibrariesDirectory_, "runtime.xml"));
+        FileUtils.writeString(
+            TemplateFactory.XML.get(templateBase_ + "idea.libraries.test").getContent(),
+            new File(ideaLibrariesDirectory_, "test.xml"));
+
+        // IDEA run site
+        if (createIdeaRunMain()) {
+            var run_site_template = TemplateFactory.XML.get(templateBase_ + "idea.runConfigurations.Run_Main");
+            run_site_template.setValue("package", project_.pkg());
+            run_site_template.setValue("projectMain", projectMainName_);
+            var run_site_file = new File(ideaRunConfigurationsDirectory_, "Run Main.xml");
+            FileUtils.writeString(run_site_template.getContent(), run_site_file);
+        }
+
+        // IDEA run tests
+        var run_tests_template = TemplateFactory.XML.get(templateBase_ + "idea.runConfigurations.Run_Tests");
+        run_tests_template.setValue("package", project_.pkg());
+        if (run_tests_template.hasValueId("projectTest")) {
+            run_tests_template.setValue("projectTest", projectTestName_);
+        }
+        var run_tests_file = new File(ideaRunConfigurationsDirectory_, "Run Tests.xml");
+        FileUtils.writeString(run_tests_template.getContent(), run_tests_file);
+    }
+
+    /**
+     * Indicates whether the IDEA main run target should be generated
+     * @return {@code true} of it should be generated; or {@code false} otherwise
+     * @since 1.6
+     */
+    protected boolean createIdeaRunMain() {
+        return true;
+    }
+
+    /**
+     * Part of the {@link #execute} operation, populates the vscode project structure.
+     *
+     * @since 1.5.6
+     */
+    protected void executePopulateVscodeProject()
+    throws FileUtilsErrorException {
+        var launch_template = TemplateFactory.JSON.get(templateBase_ + "vscode.launch");
+        launch_template.setValue("package", project_.pkg());
+        if (launch_template.hasValueId("projectMain")) {
+            launch_template.setValue("projectMain", projectMainName_);
+        }
+        if (launch_template.hasValueId("projectTest")) {
+            launch_template.setValue("projectTest", projectTestName_);
+        }
+        var launch_file = new File(vscodeDirectory_, "launch.json");
+        FileUtils.writeString(launch_template.getContent(), launch_file);
+
+        var settings_template = TemplateFactory.JSON.get(templateBase_ + "vscode.settings");
+        if (settings_template.hasValueId("version")) {
+            settings_template.setValue("version", BldVersion.getVersion());
+        }
+        var settings_file = new File(vscodeDirectory_, "settings.json");
+        FileUtils.writeString(settings_template.getContent(), settings_file);
+    }
+
+    /**
+     * Part of the {@link #execute} operation, downloads the dependencies, when enabled.
+     *
+     * @since 1.5
+     */
+    protected void executeDownloadDependencies() {
+        new DownloadOperation().fromProject(project_).execute();
+    }
+
+    /**
+     * Configures a creation operation from command-line arguments.
+     *
+     * @param arguments the arguments that will be considered
+     * @return this operation instance
+     * @since 1.5
+     */
+    public T fromArguments(List<String> arguments) {
+        String package_name = null;
+        String project_name = null;
+        if (arguments.size() > 0) {
+            package_name = arguments.remove(0);
+        }
+        if (arguments.size() > 0) {
+            project_name = arguments.remove(0);
+        }
+        if ((package_name == null || project_name == null) && System.console() == null) {
+            throw new OperationOptionException("ERROR: Expecting the package and project names as the arguments.");
+        }
+
+        if (package_name == null || package_name.isEmpty()) {
+            System.out.println("Please enter a package name (for instance: com.example):");
+            package_name = System.console().readLine();
+        } else {
+            System.out.println("Using package name: " + package_name);
+        }
+        if (project_name == null || project_name.isEmpty()) {
+            System.out.println("Please enter a project name (for instance: myapp):");
+            project_name = System.console().readLine();
+        } else {
+            System.out.println("Using project name: " + project_name);
+        }
+
+        return workDirectory(new File(System.getProperty("user.dir")))
+            .packageName(package_name)
+            .projectName(project_name)
+            .downloadDependencies(true);
+    }
+
+    /**
+     * Provides the work directory in which the project will be created.
+     * <p>
+     * If no work directory is provided, the JVM working directory will be used.
+     *
+     * @param directory the directory to use as a work directory
+     * @return this operation instance
+     * @since 1.5
+     */
+    public T workDirectory(File directory) {
+        if (!directory.exists()) {
+            throw new OperationOptionException("ERROR: The work directory '" + directory + "' doesn't exist.");
+        }
+        if (!directory.isDirectory()) {
+            throw new OperationOptionException("ERROR: '" + directory + "' is not a directory.");
+        }
+        if (!directory.canWrite()) {
+            throw new OperationOptionException("ERROR: The work directory '" + directory + "' is not writable.");
+        }
+
+        workDirectory_ = directory;
+        return (T) this;
+    }
+
+    /**
+     * Provides the package of the project that will be created.
+     *
+     * @param name the package name
+     * @return this operation instance
+     * @since 1.5
+     */
+    public T packageName(String name) {
+        packageName_ = StringUtils.trim(name);
+        if (packageName_.isEmpty()) {
+            throw new OperationOptionException("ERROR: The package name should not be blank.");
+        }
+
+        if (!ValidityChecks.checkJavaPackage(packageName_)) {
+            throw new OperationOptionException("ERROR: The package name is invalid.");
+        }
+
+        packageName_ = name;
+        return (T) this;
+    }
+
+    /**
+     * Provides the name of the project that will be created.
+     *
+     * @param name the project name
+     * @return this operation instance
+     * @since 1.5
+     */
+    public T projectName(String name) {
+        projectName_ = StringUtils.trim(name);
+        if (projectName_.isEmpty()) {
+            throw new OperationOptionException("ERROR: The project name should not be blank.");
+        }
+
+        if (!ValidityChecks.checkJavaIdentifier(projectName_)) {
+            throw new OperationOptionException("ERROR: The project name is invalid.");
+        }
+        projectName_ = name;
+        return (T) this;
+    }
+
+    /**
+     * Indicates whether the dependencies for the project should be downloaded
+     * upon creation, by default this is {@code false}.
+     *
+     * @param flag {@code true} if the dependencies should be downloaded; or
+     *             {@code false} otherwise
+     * @return this operation instance
+     * @since 1.5
+     */
+    public T downloadDependencies(boolean flag) {
+        downloadDependencies_ = flag;
+        return (T) this;
+    }
+
+    /**
+     * Retrieves the work directory that is used for the project creation.
+     *
+     * @return the work directory
+     * @since 1.5
+     */
+    public File workDirectory() {
+        return workDirectory_;
+    }
+
+    /**
+     * Retrieves the package that is used for the project creation.
+     *
+     * @return the package name
+     * @since 1.5
+     */
+    public String packageName() {
+        return packageName_;
+    }
+
+    /**
+     * Retrieves the name that is used for the project creation.
+     *
+     * @return the project name
+     * @since 1.5
+     */
+    public String projectName() {
+        return projectName_;
+    }
+
+    /**
+     * Retrieves whether dependencies will be downloaded at project creation.
+     *
+     * @return {@code true} if dependencies will be downloaded; or
+     * {@code false} otherwise
+     * @since 1.5
+     */
+    public boolean downloadDependencies() {
+        return downloadDependencies_;
+    }
+
+    /**
+     * Retrieves the project instance that was used as a blueprint for the
+     * project creation.
+     *
+     * @return the project creation blueprint instance
+     * @since 1.5
+     */
+    public P project() {
+        return project_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/AbstractOperation.java b/src/main/java/rife/bld/operations/AbstractOperation.java
new file mode 100644
index 0000000..e4dfb7f
--- /dev/null
+++ b/src/main/java/rife/bld/operations/AbstractOperation.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+/**
+ * Provides common features across all operations
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.2
+ */
+public abstract class AbstractOperation<T extends AbstractOperation<T>> {
+    private boolean silent_ = false;
+    private boolean executed_ = false;
+
+    /**
+     * Changes whether the operation should be silent or not.
+     * <p>
+     * Defaults to not silent.
+     *
+     * @param silent {@code true} if the operation should be silent;
+     *               {@code false} otherwise
+     * @return this operation instance
+     * @since 1.5.2
+     */
+    public T silent(boolean silent) {
+        silent_ = silent;
+        return (T) this;
+    }
+
+    /**
+     * Indicates whether the operation should be silent or not.
+     *
+     * @return {@code true} if the operation should be silent;
+     * {@code false} otherwise
+     * @since 1.5.2
+     */
+    public boolean silent() {
+        return silent_;
+    }
+
+    /**
+     * Ensures that this operation instance is executed once and only once.
+     *
+     * @throws Exception when an exception was thrown by the {@link #execute()} call
+     * @see #executeOnce(Runnable)
+     * @since 1.5.17
+     */
+    public void executeOnce()
+    throws Exception {
+        executeOnce(null);
+    }
+
+    /**
+     * Ensures that this operation instance is executed once and only once.
+     * <p>
+     * A setup lambda can be provided that is called when the only execution takes place.
+     *
+     * @param setup the setup lambda that will be called with the only execution
+     * @throws Exception when an exception was thrown by the {@link #execute()} call
+     * @see #executeOnce()
+     * @since 1.5.17
+     */
+    public void executeOnce(Runnable setup)
+    throws Exception {
+        if (executed_) {
+            return;
+        }
+        executed_ = true;
+
+        if (setup != null) {
+            setup.run();
+        }
+        execute();
+    }
+
+    /**
+     * Performs the operation execution that can be wrapped by the {@code #executeOnce} call.
+     *
+     * @throws Exception when an exception occurs during the execution
+     * @since 1.5.10
+     */
+    public abstract void execute()
+    throws Exception;
+}
diff --git a/src/main/java/rife/bld/operations/AbstractProcessOperation.java b/src/main/java/rife/bld/operations/AbstractProcessOperation.java
new file mode 100644
index 0000000..d23bea1
--- /dev/null
+++ b/src/main/java/rife/bld/operations/AbstractProcessOperation.java
@@ -0,0 +1,337 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.operations.exceptions.ExitStatusException;
+import rife.bld.operations.exceptions.OperationOptionException;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import java.io.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Function;
+
+/**
+ * Abstract operation that starts a Java application as a separate process.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.18
+ */
+public abstract class AbstractProcessOperation<T extends AbstractProcessOperation<T>> extends AbstractOperation<T> {
+    public static final String DEFAULT_JAVA_TOOL = "java";
+
+    protected File workDirectory_ = new File(System.getProperty("user.dir"));
+    protected String javaTool_ = DEFAULT_JAVA_TOOL;
+    protected final JavaOptions javaOptions_ = new JavaOptions();
+    protected final List<String> classpath_ = new ArrayList<>();
+    protected String mainClass_;
+    protected Function<String, Boolean> outputProcessor_;
+    protected Function<String, Boolean> errorProcessor_;
+    protected Process process_;
+    protected boolean successful_;
+    protected Thread outputProcessorThread_;
+    protected Thread errorProcessorThread_;
+
+    /**
+     * Performs the operation.
+     *
+     * @throws InterruptedException    when the operation was interrupted
+     * @throws IOException             when an exception occurred during the execution of the process
+     * @throws FileUtilsErrorException when an exception occurred during the retrieval of the operation output
+     * @throws ExitStatusException     when the exit status was changed during the operation
+     * @since 1.5
+     */
+    public void execute()
+    throws IOException, FileUtilsErrorException, InterruptedException, ExitStatusException {
+        successful_ = true;
+        outputProcessorThread_ = null;
+        errorProcessorThread_ = null;
+
+        process_ = executeStartProcess();
+
+        int status = process_.waitFor();
+
+        if (outputProcessorThread_ != null) {
+            outputProcessorThread_.join();
+        }
+        if (errorProcessorThread_ != null) {
+            errorProcessorThread_.join();
+        }
+        if (!successful_) {
+            status = ExitStatusException.EXIT_FAILURE;
+        }
+
+        ExitStatusException.throwOnFailure(status);
+    }
+
+    /**
+     * Part of the {@link #execute} operation, constructs the command list
+     * to use for building the process.
+     *
+     * @since 1.5
+     */
+    abstract protected List<String> executeConstructProcessCommandList();
+
+    /**
+     * Part of the {@link #execute} operation, starts the process.
+     *
+     * @since 1.5
+     */
+    protected Process executeStartProcess()
+    throws IOException {
+        var builder = new ProcessBuilder(executeConstructProcessCommandList());
+        builder.directory(workDirectory());
+
+        final var output_processor = outputProcessor();
+        if (output_processor == null) {
+            builder.redirectOutput(ProcessBuilder.Redirect.INHERIT);
+        } else {
+            builder.redirectOutput(ProcessBuilder.Redirect.PIPE);
+        }
+
+        final var error_processor = errorProcessor();
+        if (error_processor == null) {
+            builder.redirectError(ProcessBuilder.Redirect.INHERIT);
+        } else {
+            builder.redirectError(ProcessBuilder.Redirect.PIPE);
+        }
+
+        final var process = builder.start();
+
+        if (output_processor != null) {
+            outputProcessorThread_ = startProcessStreamProcessor(process.getInputStream(), output_processor);
+        }
+        if (error_processor != null) {
+            errorProcessorThread_ = startProcessStreamProcessor(process.getErrorStream(), error_processor);
+        }
+
+        return process;
+    }
+
+    private Thread startProcessStreamProcessor(InputStream stream, Function<String, Boolean> processor) {
+        var processor_thread = new Thread(() -> {
+            try {
+                String line;
+                var in = new BufferedReader(new InputStreamReader(stream));
+                while ((line = in.readLine()) != null) {
+                    successful_ &= processor.apply(line);
+                }
+            } catch (Exception e) {
+                // ignore
+            }
+        });
+        processor_thread.start();
+        return processor_thread;
+    }
+
+    /**
+     * Configures the operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the operation from
+     * @since 1.5
+     */
+    abstract public T fromProject(BaseProject project);
+
+    /**
+     * Provides the work directory in which the operation will be performed.
+     * <p>
+     * If no work directory is provided, the JVM working directory will be used.
+     *
+     * @param directory the directory to use as a work directory
+     * @return this operation instance
+     * @since 1.5
+     */
+    public T workDirectory(File directory) {
+        if (!directory.exists()) {
+            throw new OperationOptionException("ERROR: The work directory '" + directory + "' doesn't exist.");
+        }
+        if (!directory.isDirectory()) {
+            throw new OperationOptionException("ERROR: '" + directory + "' is not a directory.");
+        }
+        if (!directory.canWrite()) {
+            throw new OperationOptionException("ERROR: The work directory '" + directory + "' is not writable.");
+        }
+
+        workDirectory_ = directory;
+        return (T) this;
+    }
+
+    /**
+     * Provides the name of the tool to use for {@code java} execution.
+     * <p>
+     * If no java tool is provided {@code java} will be used.
+     *
+     * @param tool the name of the java tool
+     * @return this operation instance
+     * @since 1.5
+     */
+    public T javaTool(String tool) {
+        javaTool_ = tool;
+        return (T) this;
+    }
+
+    /**
+     * Provides the options to provide to the java tool.
+     *
+     * @param options the java tool's options
+     * @return this operation instance
+     * @since 1.5
+     */
+    public T javaOptions(List<String> options) {
+        javaOptions_.addAll(options);
+        return (T) this;
+    }
+
+    /**
+     * Provides classpath entries to use for the operation.
+     *
+     * @param classpath classpath entries for the operation
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public T classpath(String... classpath) {
+        classpath_.addAll(List.of(classpath));
+        return (T) this;
+    }
+
+    /**
+     * Provides a list of classpath entries to use for the  operation.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param classpath a list of classpath entries for the operation
+     * @return this operation instance
+     * @since 1.5
+     */
+    public T classpath(List<String> classpath) {
+        classpath_.addAll(classpath);
+        return (T) this;
+    }
+
+    /**
+     * Provides the main class to launch with the java tool.
+     *
+     * @param name the main class to launch
+     * @return this operation instance
+     * @since 1.5
+     */
+    public T mainClass(String name) {
+        mainClass_ = name;
+        return (T) this;
+    }
+
+    /**
+     * Provides the processor that will be used to handle the process output.
+     * <p>
+     * It will be called for each line in the output.
+     *
+     * @param processor the output processor
+     * @return this operation instance
+     * @since 1.5.1
+     */
+    public T outputProcessor(Function<String, Boolean> processor) {
+        outputProcessor_ = processor;
+        return (T) this;
+    }
+
+    /**
+     * Provides the processor that will be used to handle the process errors.
+     * <p>
+     * It will be called for each line in the error output.
+     *
+     * @param processor the error processor
+     * @return this operation instance
+     * @since 1.5.1
+     */
+    public T errorProcessor(Function<String, Boolean> processor) {
+        errorProcessor_ = processor;
+        return (T) this;
+    }
+
+    /**
+     * Retrieves the work directory in which the operation will be performed.
+     *
+     * @return the directory to use as a work directory
+     * @since 1.5
+     */
+    public File workDirectory() {
+        return workDirectory_;
+    }
+
+    /**
+     * retrieves the name of the tool to use for {@code java} execution.
+     *
+     * @return the name of the java tool
+     * @since 1.5
+     */
+    public String javaTool() {
+        return javaTool_;
+    }
+
+    /**
+     * Retrieves the options to provide to the java tool.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the java tool's options
+     * @since 1.5
+     */
+    public JavaOptions javaOptions() {
+        return javaOptions_;
+    }
+
+    /**
+     * Retrieves the classpath to use for the operation.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the operation's classpath
+     * @since 1.5
+     */
+    public List<String> classpath() {
+        return classpath_;
+    }
+
+    /**
+     * Retrieves the main class to launch with the java tool.
+     *
+     * @return the main class to launch
+     * @since 1.5
+     */
+    public String mainClass() {
+        return mainClass_;
+    }
+
+    /**
+     * Retrieves the processor that is used to handle the process output.
+     *
+     * @return the output processor
+     * @since 1.5.1
+     */
+    public Function<String, Boolean> outputProcessor() {
+        return outputProcessor_;
+    }
+
+    /**
+     * Retrieves the processor that is used to handle the process errors.
+     *
+     * @return the error processor
+     * @since 1.5.1
+     */
+    public Function<String, Boolean> errorProcessor() {
+        return errorProcessor_;
+    }
+
+    /**
+     * Retrieves the process that was used for the execution.
+     *
+     * @return the process that was executed
+     * @since 1.5
+     */
+    public Process process() {
+        return process_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/CleanOperation.java b/src/main/java/rife/bld/operations/CleanOperation.java
new file mode 100644
index 0000000..b29223e
--- /dev/null
+++ b/src/main/java/rife/bld/operations/CleanOperation.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.Project;
+import rife.tools.FileUtils;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Cleans by deleting a list of directories and all their contents.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class CleanOperation extends AbstractOperation<CleanOperation> {
+    private final List<File> directories_ = new ArrayList<>();
+
+    /**
+     * Performs the clean operation.
+     *
+     * @since 1.5
+     */
+    public void execute() {
+        for (var directory : directories()) {
+            executeCleanDirectory(directory);
+        }
+        if (!silent()) {
+            System.out.println("Cleaning finished successfully.");
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, cleans an individual directory.
+     *
+     * @param directory the directory to clean.
+     * @since 1.5
+     */
+    protected void executeCleanDirectory(File directory) {
+        try {
+            FileUtils.deleteDirectory(directory);
+        } catch (FileUtilsErrorException e) {
+            // no-op
+        }
+    }
+
+    /**
+     * Configures a clean operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the clean operation from
+     * @since 1.5
+     */
+    public CleanOperation fromProject(BaseProject project) {
+        return directories(project.buildDirectory()
+            .listFiles(f -> !f.equals(project.buildBldDirectory())));
+    }
+
+    /**
+     * Provides directories to clean.
+     *
+     * @param directories directories to clean
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public CleanOperation directories(File... directories) {
+        directories_.addAll(List.of(directories));
+        return this;
+    }
+
+    /**
+     * Provides a list of directories to clean.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param directories a list of directories to clean
+     * @return this operation instance
+     * @since 1.5
+     */
+    public CleanOperation directories(List<File> directories) {
+        directories_.addAll(directories);
+        return this;
+    }
+
+    /**
+     * Retrieves the list of directories to clean.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the list of directories to clean.
+     * @since 1.5
+     */
+    public List<File> directories() {
+        return directories_;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/CompileOperation.java b/src/main/java/rife/bld/operations/CompileOperation.java
new file mode 100644
index 0000000..9eefed3
--- /dev/null
+++ b/src/main/java/rife/bld/operations/CompileOperation.java
@@ -0,0 +1,480 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.Project;
+import rife.bld.operations.exceptions.ExitStatusException;
+import rife.tools.FileUtils;
+
+import javax.tools.*;
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Compiles main and test sources in the relevant build directories.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class CompileOperation extends AbstractOperation<CompileOperation> {
+    private File buildMainDirectory_;
+    private File buildTestDirectory_;
+    private final List<String> compileMainClasspath_ = new ArrayList<>();
+    private final List<String> compileTestClasspath_ = new ArrayList<>();
+    private final List<File> mainSourceFiles_ = new ArrayList<>();
+    private final List<File> testSourceFiles_ = new ArrayList<>();
+    private final List<File> mainSourceDirectories_ = new ArrayList<>();
+    private final List<File> testSourceDirectories_ = new ArrayList<>();
+    private final JavacOptions compileOptions_ = new JavacOptions();
+    private final List<Diagnostic<? extends JavaFileObject>> diagnostics_ = new ArrayList<>();
+
+    /**
+     * Performs the compile operation.
+     *
+     * @since 1.5
+     */
+    public void execute()
+    throws IOException, ExitStatusException {
+        executeCreateBuildDirectories();
+        executeBuildMainSources();
+        executeBuildTestSources();
+        if (!diagnostics().isEmpty()) {
+            throw new ExitStatusException(ExitStatusException.EXIT_FAILURE);
+        }
+        if (!silent()) {
+            System.out.println("Compilation finished successfully.");
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, creates the build directories.
+     *
+     * @since 1.5
+     */
+    protected void executeCreateBuildDirectories() {
+        if (buildMainDirectory() != null) {
+            buildMainDirectory().mkdirs();
+        }
+        if (buildTestDirectory() != null) {
+            buildTestDirectory().mkdirs();
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, builds the main sources.
+     *
+     * @since 1.5
+     */
+    protected void executeBuildMainSources()
+    throws IOException {
+        var sources = new ArrayList<>(mainSourceFiles());
+        for (var directory : mainSourceDirectories()) {
+            sources.addAll(FileUtils.getJavaFileList(directory));
+        }
+        executeBuildSources(
+            compileMainClasspath(),
+            sources,
+            buildMainDirectory());
+    }
+
+    /**
+     * Part of the {@link #execute} operation, builds the test sources.
+     *
+     * @since 1.5
+     */
+    protected void executeBuildTestSources()
+    throws IOException {
+        var sources = new ArrayList<>(testSourceFiles());
+        for (var directory : testSourceDirectories()) {
+            sources.addAll(FileUtils.getJavaFileList(directory));
+        }
+        executeBuildSources(
+            compileTestClasspath(),
+            sources,
+            buildTestDirectory());
+    }
+
+    /**
+     * Part of the {@link #execute} operation, build sources to a destination.
+     *
+     * @param classpath   the classpath list used for the compilation
+     * @param sources     the source files to compile
+     * @param destination the destination directory
+     * @since 1.5
+     */
+    protected void executeBuildSources(List<String> classpath, List<File> sources, File destination)
+    throws IOException {
+        if (sources.isEmpty() || destination == null) {
+            return;
+        }
+
+        var compiler = ToolProvider.getSystemJavaCompiler();
+        try (var file_manager = compiler.getStandardFileManager(null, null, null)) {
+            var compilation_units = file_manager.getJavaFileObjectsFromFiles(sources);
+            var diagnostics = new DiagnosticCollector<JavaFileObject>();
+            var options = new ArrayList<>(List.of("-d", destination.getAbsolutePath(), "-cp", FileUtils.joinPaths(classpath)));
+            options.addAll(compileOptions());
+            var compilation_task = compiler.getTask(null, file_manager, diagnostics, options, null, compilation_units);
+            if (!compilation_task.call()) {
+                diagnostics_.addAll(diagnostics.getDiagnostics());
+                executeProcessDiagnostics(diagnostics);
+            }
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, processes the compilation diagnostics.
+     *
+     * @param diagnostics the diagnostics to process
+     * @since 1.5
+     */
+    protected void executeProcessDiagnostics(DiagnosticCollector<JavaFileObject> diagnostics) {
+        for (var diagnostic : diagnostics.getDiagnostics()) {
+            System.err.print(executeFormatDiagnostic(diagnostic));
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, format a single diagnostic.
+     *
+     * @param diagnostic the diagnostic to format
+     * @return a string representation of the diagnostic
+     * @since 1.5
+     */
+    protected String executeFormatDiagnostic(Diagnostic<? extends JavaFileObject> diagnostic) {
+        return diagnostic.toString() + System.lineSeparator();
+    }
+
+    /**
+     * Configures a compile operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the compile operation from
+     * @since 1.5
+     */
+    public CompileOperation fromProject(BaseProject project) {
+        var operation = buildMainDirectory(project.buildMainDirectory())
+            .buildTestDirectory(project.buildTestDirectory())
+            .compileMainClasspath(project.compileMainClasspath())
+            .compileTestClasspath(project.compileTestClasspath())
+            .mainSourceFiles(project.mainSourceFiles())
+            .testSourceFiles(project.testSourceFiles());
+        if (project.javaRelease() != null && !compileOptions().containsRelease()) {
+            compileOptions().release(project.javaRelease());
+        }
+        return operation;
+    }
+
+    /**
+     * Provides the main build destination directory.
+     *
+     * @param directory the directory to use for the main build destination
+     * @return this operation instance
+     * @since 1.5
+     */
+    public CompileOperation buildMainDirectory(File directory) {
+        buildMainDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides the test build destination directory.
+     *
+     * @param directory the directory to use for the test build destination
+     * @return this operation instance
+     * @since 1.5
+     */
+    public CompileOperation buildTestDirectory(File directory) {
+        buildTestDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides entries for the main compilation classpath.
+     *
+     * @param classpath classpath entries
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public CompileOperation compileMainClasspath(String... classpath) {
+        compileMainClasspath_.addAll(Arrays.asList(classpath));
+        return this;
+    }
+
+    /**
+     * Provides a list of entries for the main compilation classpath.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param classpath a list of classpath entries
+     * @return this operation instance
+     * @since 1.5
+     */
+    public CompileOperation compileMainClasspath(List<String> classpath) {
+        compileMainClasspath_.addAll(classpath);
+        return this;
+    }
+
+    /**
+     * Provides entries for the test compilation classpath.
+     *
+     * @param classpath classpath entries
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public CompileOperation compileTestClasspath(String... classpath) {
+        compileTestClasspath_.addAll(Arrays.asList(classpath));
+        return this;
+    }
+
+    /**
+     * Provides a list of entries for the test compilation classpath.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param classpath a list of classpath entries
+     * @return this operation instance
+     * @since 1.5
+     */
+    public CompileOperation compileTestClasspath(List<String> classpath) {
+        compileTestClasspath_.addAll(classpath);
+        return this;
+    }
+
+    /**
+     * Provides main files that should be compiled.
+     *
+     * @param files main files
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public CompileOperation mainSourceFiles(File... files) {
+        mainSourceFiles_.addAll(Arrays.asList(files));
+        return this;
+    }
+
+    /**
+     * Provides a list of main files that should be compiled.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param files a list of main files
+     * @return this operation instance
+     * @since 1.5
+     */
+    public CompileOperation mainSourceFiles(List<File> files) {
+        mainSourceFiles_.addAll(files);
+        return this;
+    }
+
+    /**
+     * Provides test files that should be compiled.
+     *
+     * @param files test files
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public CompileOperation testSourceFiles(File... files) {
+        testSourceFiles_.addAll(Arrays.asList(files));
+        return this;
+    }
+
+    /**
+     * Provides a list of test files that should be compiled.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param files a list of test files
+     * @return this operation instance
+     * @since 1.5
+     */
+    public CompileOperation testSourceFiles(List<File> files) {
+        testSourceFiles_.addAll(files);
+        return this;
+    }
+
+    /**
+     * Provides main source directories that should be compiled.
+     *
+     * @param directories main source directories
+     * @return this operation instance
+     * @since 1.5.10
+     */
+    public CompileOperation mainSourceDirectories(File... directories) {
+        mainSourceDirectories_.addAll(List.of(directories));
+        return this;
+    }
+
+    /**
+     * Provides a list of main source directories that should be compiled.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param directories a list of main source directories
+     * @return this operation instance
+     * @since 1.5.10
+     */
+    public CompileOperation mainSourceDirectories(List<File> directories) {
+        mainSourceDirectories_.addAll(directories);
+        return this;
+    }
+
+    /**
+     * Provides test source directories that should be compiled.
+     *
+     * @param directories test source directories
+     * @return this operation instance
+     * @since 1.5.10
+     */
+    public CompileOperation testSourceDirectories(File... directories) {
+        testSourceDirectories_.addAll(List.of(directories));
+        return this;
+    }
+
+    /**
+     * Provides a list of test source directories that should be compiled.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param directories a list of test source directories
+     * @return this operation instance
+     * @since 1.5.10
+     */
+    public CompileOperation testSourceDirectories(List<File> directories) {
+        testSourceDirectories_.addAll(directories);
+        return this;
+    }
+
+    /**
+     * Provides a list of compilation options to provide to the compiler.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param options the list of compilation options
+     * @return this operation instance
+     * @since 1.5
+     */
+    public CompileOperation compileOptions(List<String> options) {
+        compileOptions_.addAll(options);
+        return this;
+    }
+
+    /**
+     * Retrieves the main build destination directory.
+     *
+     * @return the main build destination
+     * @since 1.5
+     */
+    public File buildMainDirectory() {
+        return buildMainDirectory_;
+    }
+
+    /**
+     * Retrieves the test build destination directory.
+     *
+     * @return the test build destination
+     * @since 1.5
+     */
+    public File buildTestDirectory() {
+        return buildTestDirectory_;
+    }
+
+    /**
+     * Retrieves the list of entries for the main compilation classpath.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the main compilation classpath list
+     * @since 1.5
+     */
+    public List<String> compileMainClasspath() {
+        return compileMainClasspath_;
+    }
+
+    /**
+     * Retrieves the list of entries for the test compilation classpath.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the test compilation classpath list
+     * @since 1.5
+     */
+    public List<String> compileTestClasspath() {
+        return compileTestClasspath_;
+    }
+
+    /**
+     * Retrieves the list of main files that should be compiled.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the list of main files to compile
+     * @since 1.5
+     */
+    public List<File> mainSourceFiles() {
+        return mainSourceFiles_;
+    }
+
+    /**
+     * Retrieves the list of test files that should be compiled.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the list of test files to compile
+     * @since 1.5
+     */
+    public List<File> testSourceFiles() {
+        return testSourceFiles_;
+    }
+
+    /**
+     * Retrieves the list of main source directories that should be compiled.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the list of main source directories to compile
+     * @since 1.5.10
+     */
+    public List<File> mainSourceDirectories() {
+        return mainSourceDirectories_;
+    }
+
+    /**
+     * Retrieves the list of test source directories that should be compiled.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the list of test source directories to compile
+     * @since 1.5.10
+     */
+    public List<File> testSourceDirectories() {
+        return testSourceDirectories_;
+    }
+
+    /**
+     * Retrieves the list of compilation options for the compiler.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the list of compiler options
+     * @since 1.5
+     */
+    public JavacOptions compileOptions() {
+        return compileOptions_;
+    }
+
+    /**
+     * Retrieves the list of diagnostics resulting from the compilation.
+     *
+     * @return the list of compilation diagnostics
+     * @since 1.5
+     */
+    public List<Diagnostic<? extends JavaFileObject>> diagnostics() {
+        return diagnostics_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/CreateBaseOperation.java b/src/main/java/rife/bld/operations/CreateBaseOperation.java
new file mode 100644
index 0000000..6067eac
--- /dev/null
+++ b/src/main/java/rife/bld/operations/CreateBaseOperation.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.Project;
+import rife.bld.blueprints.BaseProjectBlueprint;
+
+import java.io.File;
+
+/**
+ * Creates a new base project structure.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.20
+ */
+public class CreateBaseOperation extends AbstractCreateOperation<CreateBaseOperation, Project> {
+    public CreateBaseOperation() {
+        super("bld.base.");
+    }
+
+    protected Project createProjectBlueprint() {
+        return new BaseProjectBlueprint(new File(workDirectory(), projectName()), packageName(), projectName());
+    }
+}
diff --git a/src/main/java/rife/bld/operations/CreateBlankOperation.java b/src/main/java/rife/bld/operations/CreateBlankOperation.java
new file mode 100644
index 0000000..a52a1db
--- /dev/null
+++ b/src/main/java/rife/bld/operations/CreateBlankOperation.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.Project;
+import rife.bld.blueprints.BlankProjectBlueprint;
+
+import java.io.File;
+
+/**
+ * Creates a new blank project structure.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class CreateBlankOperation extends AbstractCreateOperation<CreateBlankOperation, Project> {
+    public CreateBlankOperation() {
+        super("bld.blank.");
+    }
+
+    protected Project createProjectBlueprint() {
+        return new BlankProjectBlueprint(new File(workDirectory(), projectName()), packageName(), projectName());
+    }
+}
diff --git a/src/main/java/rife/bld/operations/CreateLibOperation.java b/src/main/java/rife/bld/operations/CreateLibOperation.java
new file mode 100644
index 0000000..91516f7
--- /dev/null
+++ b/src/main/java/rife/bld/operations/CreateLibOperation.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.Project;
+import rife.bld.blueprints.BaseProjectBlueprint;
+import rife.bld.blueprints.LibProjectBlueprint;
+
+import java.io.File;
+
+/**
+ * Creates a new lib project structure.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.6
+ */
+public class CreateLibOperation extends AbstractCreateOperation<CreateLibOperation, Project> {
+    public CreateLibOperation() {
+        super("bld.lib.");
+    }
+
+    protected Project createProjectBlueprint() {
+        return new LibProjectBlueprint(new File(workDirectory(), projectName()), packageName(), projectName());
+    }
+
+    protected String projectMainClassName(String projectClassName) {
+        return projectClassName + "Lib";
+    }
+
+    protected boolean createIdeaRunMain() {
+        return false;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/CreateRife2Operation.java b/src/main/java/rife/bld/operations/CreateRife2Operation.java
new file mode 100644
index 0000000..2cb66ac
--- /dev/null
+++ b/src/main/java/rife/bld/operations/CreateRife2Operation.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.blueprints.Rife2ProjectBlueprint;
+import rife.bld.dependencies.*;
+import rife.template.TemplateFactory;
+import rife.tools.FileUtils;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * Creates a new RIFE2 project structure.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class CreateRife2Operation extends AbstractCreateOperation<CreateRife2Operation, Rife2ProjectBlueprint> {
+    File srcMainWebappCssDirectory_;
+    File srcMainWebappWebInfDirectory_;
+
+    public CreateRife2Operation() {
+        super("bld.rife2_hello.");
+    }
+
+    protected Rife2ProjectBlueprint createProjectBlueprint() {
+        return new Rife2ProjectBlueprint(new File(workDirectory(), projectName()), packageName(), projectName());
+    }
+
+    @Override
+    protected void executeConfigure() {
+        super.executeConfigure();
+
+        projectMainName_ = projectClassName_ + "Site";
+        projectMainUberName_ = projectMainName_ + "Uber";
+        srcMainWebappCssDirectory_ = new File(project_.srcMainWebappDirectory(), "css");
+        srcMainWebappWebInfDirectory_ = new File(project_.srcMainWebappDirectory(), "WEB-INF");
+    }
+
+    @Override
+    protected void executeCreateProjectStructure() {
+        super.executeCreateProjectStructure();
+
+        srcMainWebappCssDirectory_.mkdirs();
+        srcMainWebappWebInfDirectory_.mkdirs();
+    }
+
+    @Override
+    protected void executePopulateProjectStructure()
+    throws FileUtilsErrorException, IOException {
+        super.executePopulateProjectStructure();
+
+        // project site uber
+        var main_uber_template = TemplateFactory.TXT.get(templateBase_ + "project_main_uber");
+        main_uber_template.setValue("package", project_.pkg());
+        main_uber_template.setValue("projectMain", projectMainName_);
+        main_uber_template.setValue("projectMainUber", projectMainUberName_);
+        var project_main_uber_file = new File(mainPackageDirectory_, projectMainUberName_ + ".java");
+        FileUtils.writeString(main_uber_template.getContent(), project_main_uber_file);
+
+        // project template
+        var template_template = TemplateFactory.HTML.get(templateBase_ + "project_template");
+        template_template.setValue("project", projectClassName_);
+        var project_template_file = new File(project_.srcMainResourcesTemplatesDirectory(), "hello.html");
+        FileUtils.writeString(template_template.getContent(), project_template_file);
+
+        // project css
+        FileUtils.writeString(
+            TemplateFactory.TXT.get(templateBase_ + "project_style").getContent(),
+            new File(srcMainWebappCssDirectory_, "style.css"));
+
+        // project web.xml
+        var web_xml_template = TemplateFactory.XML.get(templateBase_ + "project_web");
+        web_xml_template.setValue("package", project_.pkg());
+        web_xml_template.setValue("projectMain", projectMainName_);
+        var project_web_xml_file = new File(srcMainWebappWebInfDirectory_, "web.xml");
+        FileUtils.writeString(web_xml_template.getContent(), project_web_xml_file);
+    }
+
+    @Override
+    protected void executePopulateIdeaProject()
+    throws FileUtilsErrorException {
+        super.executePopulateIdeaProject();
+        FileUtils.writeString(
+            TemplateFactory.XML.get(templateBase_ + "idea.libraries.standalone").getContent(),
+            new File(ideaLibrariesDirectory_, "standalone.xml"));
+    }
+}
diff --git a/src/main/java/rife/bld/operations/DependencyTreeOperation.java b/src/main/java/rife/bld/operations/DependencyTreeOperation.java
new file mode 100644
index 0000000..fe950cc
--- /dev/null
+++ b/src/main/java/rife/bld/operations/DependencyTreeOperation.java
@@ -0,0 +1,181 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.dependencies.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static rife.bld.dependencies.Scope.compile;
+import static rife.bld.dependencies.Scope.runtime;
+
+/**
+ * Transitively generates a hierarchical tree of dependencies.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.21
+ */
+public class DependencyTreeOperation extends AbstractOperation<DependencyTreeOperation> {
+    private ArtifactRetriever retriever_ = null;
+    private final List<Repository> repositories_ = new ArrayList<>();
+    private final DependencyScopes dependencies_ = new DependencyScopes();
+    private final StringBuilder dependencyTree_ = new StringBuilder();
+
+    /**
+     * Performs the dependency tree operation.
+     *
+     * @since 1.5.21
+     */
+    public void execute() {
+        var compile_tree = executeGenerateCompileDependencies();
+        var runtime_tree = executeGenerateRuntimeDependencies();
+        dependencyTree_.setLength(0);
+        dependencyTree_.append(compile_tree);
+        dependencyTree_.append(System.lineSeparator());
+        dependencyTree_.append(runtime_tree);
+        dependencyTree_.append(System.lineSeparator());
+
+        System.out.println(compile_tree);
+        System.out.println(runtime_tree);
+    }
+
+    /**
+     * Part of the {@link #execute} operation, generates the tree for the compile scope.
+     *
+     * @since 1.5.21
+     */
+    protected String executeGenerateCompileDependencies() {
+        var compile_tree = dependencies().scope(compile).generateTransitiveDependencyTree(artifactRetriever(), repositories(), compile);
+        if (compile_tree.isEmpty()) {
+            compile_tree = "no dependencies" + System.lineSeparator();
+        }
+        return "compile:" + System.lineSeparator() + compile_tree;
+    }
+
+    /**
+     * Part of the {@link #execute} operation, generates the tree for the runtime scope.
+     *
+     * @since 1.5.21
+     */
+    protected String executeGenerateRuntimeDependencies() {
+        var runtime_tree = dependencies().scope(runtime).generateTransitiveDependencyTree(artifactRetriever(), repositories(), compile, runtime);
+        if (runtime_tree.isEmpty()) {
+            runtime_tree = "no dependencies" + System.lineSeparator();
+        }
+        return "runtime:" + System.lineSeparator() + runtime_tree;
+    }
+
+
+    /**
+     * Configures a dependency tree operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the operation from
+     * @since 1.5.21
+     */
+    public DependencyTreeOperation fromProject(BaseProject project) {
+        return artifactRetriever(project.artifactRetriever())
+            .repositories(project.repositories())
+            .dependencies(project.dependencies());
+    }
+
+    /**
+     * Provides repositories to resolve the dependencies against.
+     *
+     * @param repositories repositories against which dependencies will be resolved
+     * @return this operation instance
+     * @since 1.5.21
+     */
+    public DependencyTreeOperation repositories(Repository... repositories) {
+        repositories_.addAll(List.of(repositories));
+        return this;
+    }
+
+    /**
+     * Provides a list of repositories to resolve the dependencies against.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param repositories a list of repositories against which dependencies will be resolved
+     * @return this operation instance
+     * @since 1.5.21
+     */
+    public DependencyTreeOperation repositories(List<Repository> repositories) {
+        repositories_.addAll(repositories);
+        return this;
+    }
+
+    /**
+     * Provides scoped dependencies to generate a tree for.
+     *
+     * @param dependencies the dependencies that will be resolved for tree generation
+     * @return this operation instance
+     * @since 1.5.21
+     */
+    public DependencyTreeOperation dependencies(DependencyScopes dependencies) {
+        dependencies_.include(dependencies);
+        return this;
+    }
+
+    /**
+     * Provides the artifact retriever to use.
+     *
+     * @param retriever the artifact retriever
+     * @return this operation instance
+     * @since 1.5.21
+     */
+    public DependencyTreeOperation artifactRetriever(ArtifactRetriever retriever) {
+        retriever_ = retriever;
+        return this;
+    }
+
+    /**
+     * Retrieves the repositories in which the dependencies will be resolved.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the repositories used for dependency resolution
+     * @since 1.5.21
+     */
+    public List<Repository> repositories() {
+        return repositories_;
+    }
+
+    /**
+     * Retrieves the scoped dependencies that will be used for tree generation.
+     * <p>
+     * This is a modifiable structure that can be retrieved and changed.
+     *
+     * @return the scoped dependencies
+     * @since 1.5.21
+     */
+    public DependencyScopes dependencies() {
+        return dependencies_;
+    }
+
+    /**
+     * Returns the artifact retriever that is used.
+     *
+     * @return the artifact retriever
+     * @since 1.5.21
+     */
+    public ArtifactRetriever artifactRetriever() {
+        if (retriever_ == null) {
+            return ArtifactRetriever.instance();
+        }
+        return retriever_;
+    }
+
+    /**
+     * Returns the last generated dependency tree.
+     *
+     * @return the last generated dependency tree
+     * @since 1.5.21
+     */
+    public String dependencyTree() {
+        return dependencyTree_.toString();
+    }
+}
diff --git a/src/main/java/rife/bld/operations/DownloadOperation.java b/src/main/java/rife/bld/operations/DownloadOperation.java
new file mode 100644
index 0000000..1799049
--- /dev/null
+++ b/src/main/java/rife/bld/operations/DownloadOperation.java
@@ -0,0 +1,355 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.dependencies.*;
+
+import java.io.File;
+import java.util.*;
+
+import static rife.bld.dependencies.Dependency.CLASSIFIER_JAVADOC;
+import static rife.bld.dependencies.Dependency.CLASSIFIER_SOURCES;
+
+/**
+ * Transitively downloads all the artifacts for dependencies into
+ * directories that are separated out by scope.
+ * <p>
+ * If a directory is not provided, no download will occur for that
+ * dependency scope.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class DownloadOperation extends AbstractOperation<DownloadOperation> {
+    private ArtifactRetriever retriever_ = null;
+    private final List<Repository> repositories_ = new ArrayList<>();
+    private final DependencyScopes dependencies_ = new DependencyScopes();
+    private File libCompileDirectory_;
+    private File libRuntimeDirectory_;
+    private File libStandaloneDirectory_;
+    private File libTestDirectory_;
+    private boolean downloadSources_ = false;
+    private boolean downloadJavadoc_ = false;
+
+    /**
+     * Performs the download operation.
+     *
+     * @since 1.5
+     */
+    public void execute() {
+        executeDownloadCompileDependencies();
+        executeDownloadRuntimeDependencies();
+        executeDownloadStandaloneDependencies();
+        executeDownloadTestDependencies();
+        if (!silent()) {
+            System.out.println("Downloading finished successfully.");
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, download the {@code compile} scope artifacts.
+     *
+     * @since 1.5
+     */
+    protected void executeDownloadCompileDependencies() {
+        executeDownloadDependencies(libCompileDirectory(), dependencies().resolveCompileDependencies(artifactRetriever(), repositories()));
+    }
+
+    /**
+     * Part of the {@link #execute} operation, download the {@code runtime} scope artifacts.
+     *
+     * @since 1.5
+     */
+    protected void executeDownloadRuntimeDependencies() {
+        executeDownloadDependencies(libRuntimeDirectory(), dependencies().resolveRuntimeDependencies(artifactRetriever(), repositories()));
+    }
+
+    /**
+     * Part of the {@link #execute} operation, download the {@code standalone} scope artifacts.
+     *
+     * @since 1.5
+     */
+    protected void executeDownloadStandaloneDependencies() {
+        executeDownloadDependencies(libStandaloneDirectory(), dependencies().resolveStandaloneDependencies(artifactRetriever(), repositories()));
+    }
+
+    /**
+     * Part of the {@link #execute} operation, download the {@code test} scope artifacts.
+     *
+     * @since 1.5
+     */
+    protected void executeDownloadTestDependencies() {
+        executeDownloadDependencies(libTestDirectory(), dependencies().resolveTestDependencies(artifactRetriever(), repositories()));
+    }
+
+    /**
+     * Part of the {@link #execute} operation, download the artifacts for a particular dependency scope.
+     *
+     * @param destinationDirectory the directory in which the artifacts should be downloaded
+     * @param dependencies         the dependencies to download
+     * @since 1.6
+     */
+    protected void executeDownloadDependencies(File destinationDirectory, DependencySet dependencies) {
+        if (destinationDirectory == null) {
+            return;
+        }
+
+        destinationDirectory.mkdirs();
+
+        var additional_classifiers = new String[0];
+
+        if (downloadSources_ || downloadJavadoc_) {
+            var classifiers = new ArrayList<String>();
+            if (downloadSources_) classifiers.add(CLASSIFIER_SOURCES);
+            if (downloadJavadoc_) classifiers.add(CLASSIFIER_JAVADOC);
+
+            additional_classifiers = classifiers.toArray(new String[0]);
+        }
+
+        dependencies.transferIntoDirectory(artifactRetriever(), repositories(), destinationDirectory, additional_classifiers);
+    }
+
+    /**
+     * Configures a compile operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the compile operation from
+     * @since 1.5
+     */
+    public DownloadOperation fromProject(BaseProject project) {
+        return artifactRetriever(project.artifactRetriever())
+            .repositories(project.repositories())
+            .dependencies(project.dependencies())
+            .libCompileDirectory(project.libCompileDirectory())
+            .libRuntimeDirectory(project.libRuntimeDirectory())
+            .libStandaloneDirectory(project.libStandaloneDirectory())
+            .libTestDirectory(project.libTestDirectory())
+            .downloadSources(project.downloadSources())
+            .downloadJavadoc(project.downloadJavadoc());
+    }
+
+    /**
+     * Provides repositories to resolve the dependencies against.
+     *
+     * @param repositories repositories against which dependencies will be resolved
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public DownloadOperation repositories(Repository... repositories) {
+        repositories_.addAll(List.of(repositories));
+        return this;
+    }
+
+    /**
+     * Provides a list of repositories to resolve the dependencies against.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param repositories a list of repositories against which dependencies will be resolved
+     * @return this operation instance
+     * @since 1.5
+     */
+    public DownloadOperation repositories(List<Repository> repositories) {
+        repositories_.addAll(repositories);
+        return this;
+    }
+
+    /**
+     * Provides scoped dependencies for artifact download.
+     *
+     * @param dependencies the dependencies that will be resolved for artifact download
+     * @return this operation instance
+     * @since 1.5
+     */
+    public DownloadOperation dependencies(DependencyScopes dependencies) {
+        dependencies_.include(dependencies);
+        return this;
+    }
+
+    /**
+     * Provides the {@code compile} scope download directory.
+     *
+     * @param directory the directory to download the {@code compile} scope artifacts into
+     * @return this operation instance
+     * @since 1.5
+     */
+    public DownloadOperation libCompileDirectory(File directory) {
+        libCompileDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides the {@code runtime} scope download directory.
+     *
+     * @param directory the directory to download the {@code runtime} scope artifacts into
+     * @return this operation instance
+     * @since 1.5
+     */
+    public DownloadOperation libRuntimeDirectory(File directory) {
+        libRuntimeDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides the {@code standalone} scope download directory.
+     *
+     * @param directory the directory to download the {@code standalone} scope artifacts into
+     * @return this operation instance
+     * @since 1.5
+     */
+    public DownloadOperation libStandaloneDirectory(File directory) {
+        libStandaloneDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides the {@code test} scope download directory.
+     *
+     * @param directory the directory to download the {@code test} scope artifacts into
+     * @return this operation instance
+     * @since 1.5
+     */
+    public DownloadOperation libTestDirectory(File directory) {
+        libTestDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Indicates whether the sources classifier should also be downloaded.
+     *
+     * @param flag {@code true} if the sources classifier should be downloaded; or
+     *             {@code false} otherwise
+     * @return this operation instance
+     * @since 1.5.6
+     */
+    public DownloadOperation downloadSources(boolean flag) {
+        downloadSources_ = flag;
+        return this;
+    }
+
+    /**
+     * Indicates whether the javadoc classifier should also be downloaded.
+     *
+     * @param flag {@code true} if the javadoc classifier should be downloaded; or
+     *             {@code false} otherwise
+     * @return this operation instance
+     * @since 1.5.6
+     */
+    public DownloadOperation downloadJavadoc(boolean flag) {
+        downloadJavadoc_ = flag;
+        return this;
+    }
+
+    /**
+     * Provides the artifact retriever to use.
+     *
+     * @param retriever the artifact retriever
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public DownloadOperation artifactRetriever(ArtifactRetriever retriever) {
+        retriever_ = retriever;
+        return this;
+    }
+
+    /**
+     * Retrieves the repositories in which the dependencies will be resolved.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the repositories used for dependency resolution
+     * @since 1.5
+     */
+    public List<Repository> repositories() {
+        return repositories_;
+    }
+
+    /**
+     * Retrieves the scoped dependencies that will be used for artifact download.
+     * <p>
+     * This is a modifiable structure that can be retrieved and changed.
+     *
+     * @return the scoped dependencies
+     * @since 1.5
+     */
+    public DependencyScopes dependencies() {
+        return dependencies_;
+    }
+
+    /**
+     * Retrieves the {@code compile} scope download directory.
+     *
+     * @return the {@code compile} scope download directory
+     * @since 1.5
+     */
+    public File libCompileDirectory() {
+        return libCompileDirectory_;
+    }
+
+    /**
+     * Retrieves the {@code runtime} scope download directory.
+     *
+     * @return the {@code runtime} scope download directory
+     * @since 1.5
+     */
+    public File libRuntimeDirectory() {
+        return libRuntimeDirectory_;
+    }
+
+    /**
+     * Retrieves the {@code standalone} scope download directory.
+     *
+     * @return the {@code standalone} scope download directory
+     * @since 1.5
+     */
+    public File libStandaloneDirectory() {
+        return libStandaloneDirectory_;
+    }
+
+    /**
+     * Retrieves the {@code test} scope download directory.
+     *
+     * @return the {@code test} scope download directory
+     * @since 1.5
+     */
+    public File libTestDirectory() {
+        return libTestDirectory_;
+    }
+
+    /**
+     * Retrieves whether the sources classifier should also be downloaded.
+     *
+     * @return {@code true} if the sources classifier should be downloaded; or
+     * {@code false} otherwise
+     * @since 1.5.6
+     */
+    public boolean downloadSources() {
+        return downloadSources_;
+    }
+
+    /**
+     * Retrieves whether the javadoc classifier should also be downloaded.
+     *
+     * @return {@code true} if the sources classifier should be downloaded; or
+     * {@code false} otherwise
+     * @since 1.5.6
+     */
+    public boolean downloadJavadoc() {
+        return downloadJavadoc_;
+    }
+
+    /**
+     * Returns the artifact retriever that is used.
+     *
+     * @return the artifact retriever
+     * @since 1.5.18
+     */
+    public ArtifactRetriever artifactRetriever() {
+        if (retriever_ == null) {
+            return ArtifactRetriever.instance();
+        }
+        return retriever_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/HelpOperation.java b/src/main/java/rife/bld/operations/HelpOperation.java
new file mode 100644
index 0000000..c0212b8
--- /dev/null
+++ b/src/main/java/rife/bld/operations/HelpOperation.java
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BldVersion;
+import rife.bld.BuildExecutor;
+
+import java.util.List;
+
+import static java.util.Comparator.comparingInt;
+
+/**
+ * Provides help about the build system commands.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class HelpOperation {
+    private final BuildExecutor executor_;
+    private final List<String> arguments_;
+
+    /**
+     * Creates a new help operation.
+     *
+     * @param executor the build executor that commands are running into
+     * @param arguments the arguments that were provided to the build executor
+     * @since 1.5
+     */
+    public HelpOperation(BuildExecutor executor, List<String> arguments) {
+        executor_ = executor;
+        arguments_ = arguments;
+    }
+
+    /**
+     * Performs the help operation.
+     *
+     * @since 1.5
+     */
+    public void execute() {
+        var topic = "";
+        if (!arguments_.isEmpty()) {
+            topic = arguments_.remove(0);
+        }
+
+        System.err.println("Welcome to bld " + BldVersion.getVersion() + ".");
+        System.err.println();
+
+        boolean print_full_help = true;
+        try {
+            var commands = executor_.buildCommands();
+            if (commands.containsKey(topic)) {
+                var command = commands.get(topic);
+                var help = command.getHelp().getDescription(topic);
+                if (!help.isEmpty()) {
+                    System.err.println(help);
+                    print_full_help = false;
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        if (print_full_help) {
+            executePrintOverviewHelp();
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, prints the help overview
+     * with summaries of all build commands.
+     *
+     * @since 1.5
+     */
+    public void executePrintOverviewHelp() {
+        var commands = executor_.buildCommands();
+
+        System.err.println("""
+            The RIFE2 CLI provides its features through a series of commands that
+            perform specific tasks. The help command provides more information about
+            the other commands.
+                        
+            Usage : help [command]
+
+            The following commands are supported.
+            """);
+
+        var command_length = commands.keySet().stream().max(comparingInt(String::length)).get().length() + 2;
+        for (var command : commands.entrySet()) {
+            System.err.print("  ");
+            System.err.printf("%-" + command_length + "s", command.getKey());
+            var build_help = command.getValue().getHelp();
+            System.err.print(build_help.getSummary());
+            System.err.println();
+        }
+
+        System.err.println("""
+              
+              -?, -h, --help    Shows this help message
+              -D<name>=<value>  Set a JVM system property
+              -s, --stacktrace  Print out the stacktrace for exceptions
+            """);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/JUnitOperation.java b/src/main/java/rife/bld/operations/JUnitOperation.java
new file mode 100644
index 0000000..f79a6f3
--- /dev/null
+++ b/src/main/java/rife/bld/operations/JUnitOperation.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+
+/**
+ * Tests a Java application with JUnit.
+ * <p>
+ * If no JUnit options are specified, the {@link JUnitOptions#defaultOptions()}
+ * are used. To tweak the default options, manually add them with this method
+ * and use the other desired options.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.20
+ */
+public class JUnitOperation extends TestOperation<JUnitOperation, JUnitOptions> {
+    public static final String DEFAULT_TEST_TOOL_JUNIT5 = "org.junit.platform.console.ConsoleLauncher";
+
+    @Override
+    protected JUnitOptions createTestToolOptions() {
+        return new JUnitOptions();
+    }
+
+    @Override
+    public JUnitOperation fromProject(BaseProject project) {
+        super.fromProject(project);
+
+        // use the default JUnit 5 console launcher as the test tool
+        if (mainClass() == null) {
+            mainClass(DEFAULT_TEST_TOOL_JUNIT5);
+        }
+
+        // add the default JUnit options if none were specified
+        if (testToolOptions().isEmpty() && mainClass().equals(DEFAULT_TEST_TOOL_JUNIT5)) {
+            testToolOptions().defaultOptions();
+        }
+
+        // evaluate the next arguments and pass them to the JUnit console launcher
+        // if they meet the required conditions
+        var arguments = project.arguments();
+        while (!arguments.isEmpty()) {
+            var argument = arguments.get(0);
+            if (argument.startsWith("-")) {
+                arguments.remove(0);
+                if (argument.equals("--junit-help")) {
+                    testToolOptions().add("--help");
+                } else if (argument.equals("--junit-clear")) {
+                    testToolOptions().clear();
+                } else {
+                    testToolOptions().add(argument);
+                    // check whether this option could have the need for an additional argument
+                    if (argument.length() == 2 && !arguments.isEmpty()) {
+                        switch (argument.charAt(1)) {
+                            // these are options in the form of -x where the next argument is separated
+                            // by a space and should also be passed on to the JUnit console launcher
+                            case 'f', 'd', 'o', 'p', 'c', 'm', 'r', 'i', 'n', 'N', 't', 'T', 'e', 'E' ->
+                                    testToolOptions().add(arguments.remove(0));
+                        }
+                    }
+                }
+            } else {
+                break;
+            }
+        }
+
+        return this;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/JUnitOptions.java b/src/main/java/rife/bld/operations/JUnitOptions.java
new file mode 100644
index 0000000..e085699
--- /dev/null
+++ b/src/main/java/rife/bld/operations/JUnitOptions.java
@@ -0,0 +1,508 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Collection;
+
+/**
+ * Options for JUnit 5.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.20
+ */
+public class JUnitOptions extends ArrayList<String> {
+    public enum Details {
+        NONE, SUMMARY, FLAT, TREE, VERBOSE
+    }
+
+    public enum Theme {
+        ASCII, UNICODE
+    }
+
+    private void removeMutuallyExclusiveOptions(String element) {
+        if (element.startsWith("--scan-classpath")) {
+            removeIf(s -> s.startsWith("--select-"));
+        } else if (element.startsWith("--select-")) {
+            removeIf(s -> s.startsWith("--scan-classpath"));
+        }
+        switch (element) {
+            // these are shorthand options for the longer --select-* options
+            case "-u", "-f", "-d", "-o", "-p", "-c", "-m", "-r", "-i" ->
+                    removeIf(s -> s.startsWith("--scan-classpath"));
+        }
+    }
+
+    @Override
+    public boolean addAll(Collection<? extends String> c) {
+        var result = super.addAll(c);
+        if (result) {
+            for (var element : c) {
+                removeMutuallyExclusiveOptions(element);
+            }
+        }
+        return result;
+    }
+
+    @Override
+    public boolean addAll(int index, Collection<? extends String> c) {
+        var result = super.addAll(index, c);
+        if (result) {
+            for (var element : c) {
+                removeMutuallyExclusiveOptions(element);
+            }
+        }
+        return result;
+    }
+
+    @Override
+    public String set(int index, String element) {
+        var result = super.set(index, element);
+        removeMutuallyExclusiveOptions(element);
+        return result;
+    }
+
+    @Override
+    public boolean add(String s) {
+        var result = super.add(s);
+        removeMutuallyExclusiveOptions(s);
+        return result;
+    }
+
+    @Override
+    public void add(int index, String element) {
+        super.add(index, element);
+        removeMutuallyExclusiveOptions(element);
+    }
+
+    /**
+     * Configures the default options that RIFE2 uses when no
+     * options have been explicitly set.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions defaultOptions() {
+        config("junit.jupiter.testclass.order.default", "org.junit.jupiter.api.ClassOrderer$ClassName");
+        details(Details.VERBOSE);
+        scanClassPath();
+        disableBanner();
+        disableAnsiColors();
+        excludeEngine("junit-platform-suite");
+        excludeEngine("junit-vintage");
+        failIfNoTests();
+
+        return this;
+    }
+
+    /**
+     * Scan all directories on the classpath.
+     * <p>
+     * Only directories on the system classpath as well as additional classpath
+     * entries supplied via -cp (directories and JAR files) are scanned.
+     * <p>
+     * Removes all the {@code select} options since they are mutually exclusive.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions scanClassPath() {
+        add("--scan-classpath");
+        return this;
+    }
+
+    /**
+     * Scan an explicit classpath root.
+     * <p>
+     * Explicit classpath roots that are not on the classpath will be silently
+     * ignored.
+     * <p>
+     * Removes all the {@code select} options since they are mutually exclusive.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions scanClassPath(String path) {
+        add("--scan-classpath=" + path);
+        return this;
+    }
+
+    /**
+     * EXPERIMENTAL: Scan all resolved modules for test discovery
+     * <p>
+     * Removes all the {@code scanClasspath} options since they are mutually exclusive.
+     * <p>
+     * Removes all the {@code scanClasspath} options since they are mutually exclusive.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions scanModules() {
+        add("--scan-modules");
+        return this;
+    }
+
+    /**
+     * Select a URI for test discovery.
+     * <p>
+     * Removes all the {@code scanClasspath} options since they are mutually exclusive.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions selectUri(String uri) {
+        add("--select-uri=" + uri);
+        return this;
+    }
+
+    /**
+     * Select a file for test discovery.
+     * <p>
+     * Removes all the {@code scanClasspath} options since they are mutually exclusive.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions selectFile(File file) {
+        add("--select-file=" + file);
+        return this;
+    }
+
+    /**
+     * Select a directory for test discovery.
+     * <p>
+     * Removes all the {@code scanClasspath} options since they are mutually exclusive.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions selectDirectory(File file) {
+        add("--select-directory=" + file);
+        return this;
+    }
+
+    /**
+     * EXPERIMENTAL: Select single module for test discovery.
+     * <p>
+     * Removes all the {@code scanClasspath} options since they are mutually exclusive.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions selectModule(String name) {
+        add("--select-module=" + name);
+        return this;
+    }
+
+    /**
+     * Select a package for test discovery.
+     * <p>
+     * Removes all the {@code scanClasspath} options since they are mutually exclusive.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions selectPackage(String name) {
+        add("--select-package=" + name);
+        return this;
+    }
+
+    /**
+     * Select a class for test discovery.
+     * <p>
+     * Removes all the {@code scanClasspath} options since they are mutually exclusive.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions selectClass(String name) {
+        add("--select-class=" + name);
+        return this;
+    }
+
+    /**
+     * Select a method for test discovery.
+     * <p>
+     * Removes all the {@code scanClasspath} options since they are mutually exclusive.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions selectMethod(String name) {
+        add("--select-method=" + name);
+        return this;
+    }
+
+    /**
+     * Select a classpath resource for test discovery.
+     * <p>
+     * Removes all the {@code scanClasspath} options since they are mutually exclusive.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions selectResource(String resource) {
+        add("--select-resource=" + resource);
+        return this;
+    }
+
+    /**
+     * Select iterations for test discovery of format {@code TYPE:VALUE[INDEX(..INDEX)?(,INDEX(..INDEX)?)*]}
+     * (e.g. method:com.acme.Foo#m()[1..2]).
+     * <p>
+     * Removes all the {@code scanClasspath} options since they are mutually exclusive.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions selectIteration(String iteration) {
+        add("--select-iteration=" + iteration);
+        return this;
+    }
+
+    /**
+     * Provide a regular expression to include only classes whose fully
+     * qualified names match. To avoid loading classes unnecessarily,
+     * the default pattern only includes class names that begin with
+     * "Test" or end with "Test" or "Tests". When this option is
+     * repeated, all patterns will be combined using OR semantics.
+     * Default: ^(Test.*|.+[.$]Test.*|.*Tests?)$
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions includeClassname(String regexPattern) {
+        add("--include-classname=" + regexPattern);
+        return this;
+    }
+
+    /**
+     * Provide a regular expression to exclude those classes whose fully
+     * qualified names match. When this option is repeated, all
+     * patterns will be combined using OR semantics.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions excludeClassname(String regexPattern) {
+        add("--exclude-classname=" + regexPattern);
+        return this;
+    }
+
+    /**
+     * Provide a package to be included in the test run. This option can
+     * be repeated.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions includePackage(String name) {
+        add("--include-package=" + name);
+        return this;
+    }
+
+    /**
+     * Provide a package to be excluded from the test run. This option
+     * can be repeated.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions excludePackage(String name) {
+        add("--exclude-package=" + name);
+        return this;
+    }
+
+    /**
+     * Provide a tag or tag expression to include only tests whose tags
+     * match. When this option is repeated, all patterns will be
+     * combined using OR semantics.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions includeTag(String tag) {
+        add("--include-tag=" + tag);
+        return this;
+    }
+
+    /**
+     * Provide a tag or tag expression to exclude those tests whose tags
+     * match. When this option is repeated, all patterns will be
+     * combined using OR semantics.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions excludeTag(String tag) {
+        add("--exclude-tag=" + tag);
+        return this;
+    }
+
+    /**
+     * Provide the ID of an engine to be included in the test run.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions includeEngine(String id) {
+        add("--include-engine=" + id);
+        return this;
+    }
+
+    /**
+     * Provide the ID of an engine to be excluded in the test run.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions excludeEngine(String id) {
+        add("--exclude-engine=" + id);
+        return this;
+    }
+
+    /**
+     * Set a configuration parameter for test discovery and execution.
+     * <p>
+     * This option can be repeated.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions config(String key, String value) {
+        add("--config=" + key + "=" + value);
+        return this;
+    }
+
+    /**
+     * Fail and return exit status code 2 if no tests are found.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions failIfNoTests() {
+        add("--fail-if-no-tests");
+        return this;
+    }
+
+    /**
+     * Enable report output into a specified local directory (will be
+     * created if it does not exist).
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions reportsDir(File dir) {
+        add("--reports-dir=" + dir);
+        return this;
+    }
+
+    /**
+     * Disable ANSI colors in output (not supported by all terminals).
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions disableAnsiColors() {
+        add("--disable-ansi-colors");
+        return this;
+    }
+
+    /**
+     * Specify a path to a properties file to customize ANSI style of
+     * output (not supported by all terminals).
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions colorPalette(File file) {
+        add("--color-palette=" + file);
+        return this;
+    }
+
+    /**
+     * Style test output using only text attributes, no color (not
+     * supported by all terminals).
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions singleColor() {
+        add("--single-color");
+        return this;
+    }
+
+    /**
+     * Disable print out of the welcome message.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions disableBanner() {
+        add("--disable-banner");
+        return this;
+    }
+
+    /**
+     * Select an output details mode for when tests are executed.
+     * <p>
+     * If 'none' is selected, then only the summary and test failures are shown.
+     * <p>
+     * Default: {@link Details#TREE}.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions details(Details details) {
+        add("--details=" + details.name().toLowerCase());
+        return this;
+    }
+
+    /**
+     * Select an output details tree theme for when tests are executed.
+     * <p>
+     * Default is detected based on default character encoding.
+     *
+     * @return this list of options
+     * @since 1.5.20
+     */
+    public JUnitOptions detailsTheme(Theme theme) {
+        add("--details-theme=" + theme.name().toLowerCase());
+        return this;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/JarOperation.java b/src/main/java/rife/bld/operations/JarOperation.java
new file mode 100644
index 0000000..b04ae9d
--- /dev/null
+++ b/src/main/java/rife/bld/operations/JarOperation.java
@@ -0,0 +1,418 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.NamedFile;
+import rife.bld.Project;
+import rife.tools.FileUtils;
+import rife.tools.StringUtils;
+
+import java.io.*;
+import java.util.*;
+import java.util.jar.*;
+import java.util.regex.Pattern;
+
+/**
+ * Creates a jar archive of the provided sources and directories.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class JarOperation extends AbstractOperation<JarOperation> {
+    private final Map<Attributes.Name, Object> manifestAttributes_ = new HashMap<>();
+    private final List<File> sourceDirectories_ = new ArrayList<>();
+    private final List<NamedFile> sourceFiles_ = new ArrayList<>();
+    private File destinationDirectory_;
+    private String destinationFileName_;
+    private final List<Pattern> included_ = new ArrayList<>();
+    private final List<Pattern> excluded_ = new ArrayList<>();
+
+    private final byte[] buffer_ = new byte[1024];
+
+    /**
+     * Performs the jar operation.
+     *
+     * @throws IOException when an exception occurred during the jar creation process
+     * @since 1.5
+     */
+    public void execute()
+    throws IOException {
+        executeCreateDestinationDirectory();
+        executeCreateJarArchive();
+
+        if (!silent()) {
+            System.out.println("The jar archive was created at '" + destinationFile() + "'");
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, create the destination directory.
+     *
+     * @since 1.5
+     */
+    protected void executeCreateDestinationDirectory() {
+        destinationDirectory().mkdirs();
+    }
+
+    /**
+     * Part of the {@link #execute} operation, create the jar archive.
+     *
+     * @since 1.5
+     */
+    protected void executeCreateJarArchive()
+    throws IOException {
+        var out_file = new File(destinationDirectory(), destinationFileName());
+        try (var jar = new JarOutputStream(new FileOutputStream(out_file), executeCreateManifest())) {
+            for (var source_dir : sourceDirectories()) {
+                for (var file_name : FileUtils.getFileList(source_dir)) {
+                    var file = new File(source_dir, file_name);
+                    if (StringUtils.filter(file.getAbsolutePath(), included(), excluded(), false)) {
+                        executeAddFileToJar(jar, new NamedFile(file_name, file));
+                    }
+                }
+            }
+            for (var source_file : sourceFiles()) {
+                if (StringUtils.filter(source_file.file().getAbsolutePath(), included(), excluded(), false)) {
+                    executeAddFileToJar(jar, source_file);
+                }
+            }
+            jar.flush();
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, create the manifest for the jar archive.
+     *
+     * @since 1.5
+     */
+    protected Manifest executeCreateManifest() {
+        var manifest = new Manifest();
+        var attributes = manifest.getMainAttributes();
+        for (var entry : manifestAttributes().entrySet()) {
+            // don't use putAll since Attributes does an instanceof check
+            // on the map being passed in, causing it to fail if it's not
+            // and instance of Attributes
+            attributes.put(entry.getKey(), entry.getValue());
+            // ^^^ READ above, don't use putAll
+        }
+        return manifest;
+    }
+
+    /**
+     * Part of the {@link #execute} operation, add a single file to the jar archive.
+     *
+     * @since 1.5
+     */
+    protected void executeAddFileToJar(JarOutputStream jar, NamedFile file)
+    throws IOException {
+        var entry = new JarEntry(file.name().replace('\\', '/'));
+        entry.setTime(file.file().lastModified());
+        jar.putNextEntry(entry);
+
+        try (var in = new BufferedInputStream(new FileInputStream(file.file()))) {
+            int count;
+            while ((count = in.read(buffer_)) != -1) {
+                jar.write(buffer_, 0, count);
+            }
+            jar.closeEntry();
+        }
+    }
+
+    /**
+     * Configures a jar operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the jar operation from
+     * @since 1.5
+     */
+    public JarOperation fromProject(BaseProject project) {
+        return manifestAttributes(Map.of(Attributes.Name.MANIFEST_VERSION, "1.0"))
+            .sourceDirectories(project.buildMainDirectory(), project.srcMainResourcesDirectory())
+            .destinationDirectory(project.buildDistDirectory())
+            .destinationFileName(project.jarFileName())
+            .excluded(Pattern.compile("(?:(?:^.*[/\\\\])|^)\\.DS_Store$"), Pattern.compile("^\\Q" + project.srcMainResourcesTemplatesDirectory().getAbsolutePath() + "\\E.*"));
+    }
+
+    /**
+     * Provides an attribute to put in the jar manifest.
+     *
+     * @param name  the attribute name to put in the manifest
+     * @param value the attribute value to put in the manifest
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JarOperation manifestAttribute(Attributes.Name name, Object value) {
+        manifestAttributes_.put(name, value);
+        return this;
+    }
+
+    /**
+     * Provides a map of attributes to put in the jar manifest.
+     * <p>
+     * A copy will be created to allow this map to be independently modifiable.
+     *
+     * @param attributes the attributes to put in the manifest
+     * @return this operation instance
+     * @since 1.5
+     */
+    public JarOperation manifestAttributes(Map<Attributes.Name, Object> attributes) {
+        manifestAttributes_.putAll(attributes);
+        return this;
+    }
+
+    /**
+     * Provides source directories that will be used for the jar archive creation.
+     *
+     * @param directories source directories
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JarOperation sourceDirectories(File... directories) {
+        sourceDirectories_.addAll(List.of(directories));
+        return this;
+    }
+
+    /**
+     * Provides a list of source directories that will be used for the jar archive creation.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param directories a list of source directories
+     * @return this operation instance
+     * @since 1.5
+     */
+    public JarOperation sourceDirectories(List<File> directories) {
+        sourceDirectories_.addAll(directories);
+        return this;
+    }
+
+    /**
+     * Provides source files that will be used for the jar archive creation.
+     *
+     * @param files source files
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JarOperation sourceFiles(NamedFile... files) {
+        sourceFiles_.addAll(List.of(files));
+        return this;
+    }
+
+    /**
+     * Provides a list of source files that will be used for the jar archive creation.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param files a list of source files
+     * @return this operation instance
+     * @since 1.5
+     */
+    public JarOperation sourceFiles(List<NamedFile> files) {
+        sourceFiles_.addAll(files);
+        return this;
+    }
+
+    /**
+     * Provides the destination directory in which the jar archive will be created.
+     *
+     * @param directory the jar destination directory
+     * @return this operation instance
+     * @since 1.5
+     */
+    public JarOperation destinationDirectory(File directory) {
+        destinationDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides the destination file name that will be used for the jar archive creation.
+     *
+     * @param name the jar archive destination file name
+     * @return this operation instance
+     * @since 1.5
+     */
+    public JarOperation destinationFileName(String name) {
+        destinationFileName_ = name;
+        return this;
+    }
+
+    /**
+     * Provides regex patterns that will be found to determine which files
+     * will be included in the javadoc generation.
+     *
+     * @param included inclusion patterns
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JarOperation included(String... included) {
+        included_.addAll(Arrays.stream(included).map(Pattern::compile).toList());
+        return this;
+    }
+
+    /**
+     * Provides patterns that will be found to determine which files
+     * will be included in the jar archive.
+     *
+     * @param included inclusion patterns
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JarOperation included(Pattern... included) {
+        included_.addAll(List.of(included));
+        return this;
+    }
+
+    /**
+     * Provides a list of patterns that will be found to determine which files
+     * will be included in the jar archive.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param included a list of inclusion patterns
+     * @return this operation instance
+     * @since 1.5
+     */
+    public JarOperation included(List<Pattern> included) {
+        included_.addAll(included);
+        return this;
+    }
+
+    /**
+     * Provides regex patterns that will be found to determine which files
+     * will be excluded from the javadoc generation.
+     *
+     * @param excluded exclusion patterns
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JarOperation excluded(String... excluded) {
+        excluded_.addAll(Arrays.stream(excluded).map(Pattern::compile).toList());
+        return this;
+    }
+
+    /**
+     * Provides patterns that will be found to determine which files
+     * will be excluded from the jar archive.
+     *
+     * @param excluded exclusion patterns
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JarOperation excluded(Pattern... excluded) {
+        excluded_.addAll(List.of(excluded));
+        return this;
+    }
+
+    /**
+     * Provides a list of patterns that will be found to determine which files
+     * will be excluded from the jar archive.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param excluded a list of exclusion patterns
+     * @return this operation instance
+     * @since 1.5
+     */
+    public JarOperation excluded(List<Pattern> excluded) {
+        excluded_.addAll(excluded);
+        return this;
+    }
+
+    /**
+     * Retrieves the map of attributes that will be put in the jar manifest.
+     * <p>
+     * This is a modifiable map that can be retrieved and changed.
+     *
+     * @return the manifest's attributes map
+     * @since 1.5
+     */
+    public Map<Attributes.Name, Object> manifestAttributes() {
+        return manifestAttributes_;
+    }
+
+    /**
+     * Retrieves the list of source directories that will be used for the
+     * jar archive creation.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the jar archive's source directories
+     * @since 1.5
+     */
+    public List<File> sourceDirectories() {
+        return sourceDirectories_;
+    }
+
+    /**
+     * Retrieves the list of source files that will be used for the
+     * jar archive creation.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the jar archive's source files
+     * @since 1.5
+     */
+    public List<NamedFile> sourceFiles() {
+        return sourceFiles_;
+    }
+
+    /**
+     * Retrieves the destination directory in which the jar archive will
+     * be created.
+     *
+     * @return the jar archive's destination directory
+     * @since 1.5
+     */
+    public File destinationDirectory() {
+        return destinationDirectory_;
+    }
+
+    /**
+     * Retrieves the destination file name that will be used for the jar
+     * archive creation.
+     *
+     * @return the jar archive's destination file name
+     * @since 1.5
+     */
+    public String destinationFileName() {
+        return destinationFileName_;
+    }
+
+    /**
+     * Retrieves the destination file where the jar archive will be created.
+     *
+     * @return the jar archive's destination file
+     * @since 1.5.18
+     */
+    public File destinationFile() {
+        return new File(destinationDirectory(), destinationFileName());
+    }
+
+    /**
+     * Retrieves the list of patterns that will be evaluated to determine which files
+     * will be included in the jar archive.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the jar's archive's inclusion patterns
+     * @since 1.5
+     */
+    public List<Pattern> included() {
+        return included_;
+    }
+
+    /**
+     * Retrieves the list of patterns that will be evaluated to determine which files
+     * will be excluded the jar archive.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the jar's archive's exclusion patterns
+     * @since 1.5
+     */
+    public List<Pattern> excluded() {
+        return excluded_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/JavaOptions.java b/src/main/java/rife/bld/operations/JavaOptions.java
new file mode 100644
index 0000000..4175c49
--- /dev/null
+++ b/src/main/java/rife/bld/operations/JavaOptions.java
@@ -0,0 +1,308 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.tools.StringUtils;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Options for the standard java tool.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.18
+ */
+public class JavaOptions extends ArrayList<String> {
+    public enum Verbose {
+        CLASS, MODULE, GC, JNI
+    }
+
+    /**
+     * Select the "truffle" VM.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions truffle() {
+        add("-truffle");
+        return this;
+    }
+
+    /**
+     * A list of directories, each directory is a directory of modules.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions modulePath(File... modules) {
+        return modulePath(Arrays.asList(modules));
+    }
+
+    /**
+     * A list of directories, each directory is a directory of modules.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions modulePath(List<File> modules) {
+        add("--module-path");
+        add(StringUtils.join(modules, ":"));
+        return this;
+    }
+
+    /**
+     * List of directories, each directory is a directory of modules
+     * that replace upgradeable modules in the runtime image
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions upgradeModulePath(File... modulePath) {
+        return upgradeModulePath(Arrays.asList(modulePath));
+    }
+
+    /**
+     * List of directories, each directory is a directory of modules
+     * that replace upgradeable modules in the runtime image
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions upgradeModulePath(List<File> modulePath) {
+        add("--upgrade-module-path");
+        add(StringUtils.join(modulePath, ":"));
+        return this;
+    }
+
+    /**
+     * Root modules to resolve in addition to the initial module.
+     * The module name can also be ALL-DEFAULT, ALL-SYSTEM,
+     * ALL-MODULE-PATH.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions addModules(String... modules) {
+        return addModules(Arrays.asList(modules));
+    }
+
+    /**
+     * Root modules to resolve in addition to the initial module.
+     * The module name can also be ALL-DEFAULT, ALL-SYSTEM,
+     * ALL-MODULE-PATH.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions addModules(List<String> modules) {
+        add("--add-modules");
+        add(StringUtils.join(modules, ","));
+        return this;
+    }
+
+    /**
+     * Modules that are permitted to perform restricted native operations.
+     * The module name can also be ALL-UNNAMED.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions enableNativeAccess(List... modules) {
+        return enableNativeAccess(Arrays.asList(modules));
+    }
+
+    /**
+     * Modules that are permitted to perform restricted native operations.
+     * The module name can also be ALL-UNNAMED.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions enableNativeAccess(List<String> modules) {
+        add("--enable-native-access");
+        add(StringUtils.join(modules, ","));
+        return this;
+    }
+
+    /**
+     * Set a system property.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions property(String key, String value) {
+        add("-D" + key + "=" + value);
+        return this;
+    }
+
+    /**
+     * Enable verbose output for the given subsystem
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions verbose(Verbose verbose) {
+        add("-verbose:" + verbose.name().toLowerCase());
+        return this;
+    }
+
+    /**
+     * Show module resolution output during startup.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions showModuleResolution() {
+        add("--show-module-resolution");
+        return this;
+    }
+
+    /**
+     * Enable assertions with specified granularity, either
+     * package name or class name.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions enableAssertions(String name) {
+        add("-enableassertions:"+name);
+        return this;
+    }
+
+    /**
+     * Disable assertions with specified granularity, either
+     * package name or class name.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions disableAssertions(String name) {
+        add("-disableassertions:"+name);
+        return this;
+    }
+
+    /**
+     * Enable system assertions.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions enableSystemAssertions() {
+        add("-enablesystemassertions");
+        return this;
+    }
+
+    /**
+     * Disable system assertions.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions disableSystemAssertions() {
+        add("-disablesystemassertions");
+        return this;
+    }
+
+    /**
+     * Load native agent library.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions agentLib(String libName) {
+        return agentLib(libName, null);
+    }
+
+    /**
+     * Load native agent library.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions agentLib(String libName, String options) {
+        add("-agentlib:" + libName + (options == null ? "" : ":" + options));
+        return this;
+    }
+
+    /**
+     * Load native agent library by full pathname.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions agentPath(File pathName) {
+        return agentPath(pathName, null);
+    }
+
+    /**
+     * Load native agent library by full pathname.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions agentPath(File pathName, String options) {
+        add("-agentpath:" + pathName + (options == null ? "" : ":" + options));
+        return this;
+    }
+
+    /**
+     * Load Java programming language agent.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions javaAgent(File jarPath) {
+        return javaAgent(jarPath, null);
+    }
+
+    /**
+     * Load Java programming language agent.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions javaAgent(File jarPath, String options) {
+        add("-javaagent:" + jarPath + (options == null ? "" : ":" + options));
+        return this;
+    }
+
+    /**
+     * Allow classes to depend on preview features of this release
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions enablePreview() {
+        add("--enable-preview");
+        return this;
+    }
+
+    /**
+     * Set the initial Java heap size in megabytes.
+     *
+     * @param megabytes the size
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions initialHeapSize(int megabytes) {
+        add("-Xms" + megabytes + "m");
+        return this;
+    }
+
+    /**
+     * Set the maximum Java heap size in megabytes.
+     *
+     * @param megabytes the size
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavaOptions maximumHeapSize(int megabytes) {
+        add("-Xmx" + megabytes + "m");
+        return this;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/JavacOptions.java b/src/main/java/rife/bld/operations/JavacOptions.java
new file mode 100644
index 0000000..be02dc4
--- /dev/null
+++ b/src/main/java/rife/bld/operations/JavacOptions.java
@@ -0,0 +1,427 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.tools.Convert;
+import rife.tools.FileUtils;
+import rife.tools.StringUtils;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Options for the standard javac tool.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.18
+ */
+public class JavacOptions extends ArrayList<String> {
+    public enum DebuggingInfo {
+        ALL, NONE, LINES, VAR, SOURCE
+    }
+
+    public enum Implicit {
+        NONE, CLASS
+    }
+
+    public enum Processing {
+        NONE, ONLY
+    }
+
+    /**
+     * Option to pass to annotation processors
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions annotationOption(String key, String value) {
+        add("-A" + key + "=" + value);
+        return this;
+    }
+
+    /**
+     * Root modules to resolve in addition to the initial modules,
+     * or all modules on the module path if a module is
+     * ALL-MODULE-PATH.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions addModules(String... modules) {
+        return addModules(Arrays.asList(modules));
+    }
+
+    /**
+     * Root modules to resolve in addition to the initial modules,
+     * or all modules on the module path if a module is
+     * ALL-MODULE-PATH.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions addModules(List<String> modules) {
+        add("--add-modules");
+        add(StringUtils.join(modules, ","));
+        return this;
+    }
+
+    /**
+     * Specify character encoding used by source files
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions encoding(String name) {
+        add("-encoding");
+        add("name");
+        return this;
+    }
+
+    /**
+     * Output source locations where deprecated APIs are used
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions deprecation() {
+        add("-deprecation");
+        return this;
+    }
+
+    /**
+     * Enable preview language features. To be used in conjunction with {@link #release}.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions enablePreview() {
+        add("--enable-preview");
+        return this;
+    }
+
+    /**
+     * Override location of endorsed standards path
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions endorsedDirs(File... dirs) {
+        return endorsedDirs(Arrays.asList(dirs));
+    }
+
+    /**
+     * Override location of endorsed standards path
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions endorsedDirs(List<File> dirs) {
+        add("-endorseddirs");
+        add(dirs.stream().map(File::getAbsolutePath).collect(Collectors.joining(",")));
+        return this;
+    }
+
+    /**
+     * Override location of installed extensions
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions extDirs(File... dirs) {
+        return extDirs(Arrays.asList(dirs));
+    }
+
+    /**
+     * Override location of installed extensions
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions extDirs(List<File> dirs) {
+        add("-extdirs");
+        add(dirs.stream().map(File::getAbsolutePath).collect(Collectors.joining(",")));
+        return this;
+    }
+
+    /**
+     * Indicates whether the Java SE release was set.
+     *
+     * @return {@code true} if the release was set; or
+     * {@code false} otherwise
+     * @since 1.5.18
+     */
+    public boolean containsRelease() {
+        return contains("-release");
+    }
+
+    /**
+     * Compile for the specified Java SE release.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions release(int version) {
+        add("--release");
+        add(Convert.toString(version));
+        return this;
+    }
+
+    /**
+     * Generate debugging info
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions debuggingInfo(DebuggingInfo option) {
+        if (option.equals(DebuggingInfo.ALL)) {
+            add("-g");
+        } else {
+            add("-g:" + option.name().toLowerCase());
+        }
+        return this;
+    }
+
+    /**
+     * Specify where to place generated native header files
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions nativeHeaders(File path) {
+        add("-h");
+        add(path.getAbsolutePath());
+        return this;
+    }
+
+    /**
+     * Specify whether or not to generate class files for implicitly referenced files
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions implicit(Implicit option) {
+        add("-implicit:" + option.name().toLowerCase());
+        return this;
+    }
+
+    /**
+     * Limit the universe of observable modules
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions limitModules(String... modules) {
+        return limitModules(Arrays.asList(modules));
+    }
+
+    /**
+     * Limit the universe of observable modules
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions limitModules(List<String> modules) {
+        add("--limit-modules");
+        add(StringUtils.join(modules, ","));
+        return this;
+    }
+
+    /**
+     * Compile only the specified module(s), check timestamps
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions module(String... modules) {
+        return module(Arrays.asList(modules));
+    }
+
+    /**
+     * Compile only the specified module(s), check timestamps
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions module(List<String> modules) {
+        add("--module");
+        add(StringUtils.join(modules, ","));
+        return this;
+    }
+
+    /**
+     * Specify where to find application modules
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions modulePath(File... paths) {
+        return modulePath(Arrays.asList(paths));
+    }
+
+    /**
+     * Specify where to find application modules
+     *
+     * @return this list of options
+     * @since 1.6.2
+     */
+    public JavacOptions modulePath(List<File> paths) {
+        add("--module-path");
+        add(FileUtils.joinPaths(paths.stream().map(File::getAbsolutePath).toList()));
+        return this;
+    }
+
+    /**
+     * Specify where to find input source files for multiple modules
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions moduleSourcePath(File path) {
+        add("--module-source-path");
+        add(path.getAbsolutePath());
+        return this;
+    }
+
+    /**
+     * Specify version of modules that are being compiled
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions moduleVersion(String version) {
+        add("--module-version");
+        add(version);
+        return this;
+    }
+
+    /**
+     * Generate no warnings
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions noWarn() {
+        add("-nowarn");
+        return this;
+    }
+
+    /**
+     * Generate metadata for reflection on method parameters
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions parameters() {
+        add("-parameters");
+        return this;
+    }
+
+    /**
+     * Control whether annotation processing and/or compilation is done.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions process(Processing option) {
+        add("-proc:" + option.name().toLowerCase());
+        return this;
+    }
+
+    /**
+     * Names of the annotation processors to run; bypasses default discovery process
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions processors(String... classnames) {
+        return processors(Arrays.asList(classnames));
+    }
+
+    /**
+     * Names of the annotation processors to run; bypasses default discovery process
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions processors(List<String> classnames) {
+        add("-processor");
+        add(StringUtils.join(classnames, ","));
+        return this;
+    }
+
+    /**
+     * Specify a module path where to find annotation processors
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions processorModulePath(File path) {
+        add("--processor-module-path");
+        add(path.getAbsolutePath());
+        return this;
+    }
+
+    /**
+     * Specify where to find annotation processors
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions processorPath(File path) {
+        add("--processor-path");
+        add(path.getAbsolutePath());
+        return this;
+    }
+
+    /**
+     * Check that API used is available in the specified profile
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions profile(String profile) {
+        add("-profile");
+        add(profile);
+        return this;
+    }
+
+    /**
+     * Override location of system modules. Option is &lt;jdk&gt; or none.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions system(String option) {
+        add("--system");
+        add(option);
+        return this;
+    }
+
+    /**
+     * Override location of upgradeable modules
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions upgradeModulePath(File path) {
+        add("--upgrade-module-path");
+        add(path.getAbsolutePath());
+        return this;
+    }
+
+    /**
+     * Terminate compilation if warnings occur
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavacOptions warningError() {
+        add("-Werror");
+        return this;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/JavadocOperation.java b/src/main/java/rife/bld/operations/JavadocOperation.java
new file mode 100644
index 0000000..12cad14
--- /dev/null
+++ b/src/main/java/rife/bld/operations/JavadocOperation.java
@@ -0,0 +1,436 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.Project;
+import rife.bld.operations.exceptions.ExitStatusException;
+import rife.tools.FileUtils;
+import rife.tools.StringUtils;
+
+import javax.tools.*;
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.regex.Pattern;
+
+/**
+ * Generates javadocs for the main project sources.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.10
+ */
+public class JavadocOperation extends AbstractOperation<JavadocOperation> {
+    private File buildDirectory_;
+    private final List<String> classpath_ = new ArrayList<>();
+    private final List<File> sourceFiles_ = new ArrayList<>();
+    private final List<File> sourceDirectories_ = new ArrayList<>();
+    private final JavadocOptions javadocOptions_ = new JavadocOptions();
+    private final List<Diagnostic<? extends JavaFileObject>> diagnostics_ = new ArrayList<>();
+    private final List<Pattern> included_ = new ArrayList<>();
+    private final List<Pattern> excluded_ = new ArrayList<>();
+
+    /**
+     * Performs the compile operation.
+     *
+     * @since 1.5.10
+     */
+    public void execute()
+    throws IOException, ExitStatusException {
+        executeCreateBuildDirectories();
+        executeBuildSources();
+        if (!diagnostics().isEmpty()) {
+            throw new ExitStatusException(ExitStatusException.EXIT_FAILURE);
+        }
+        if (!silent()) {
+            System.out.println("Javadoc generated successfully.");
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, creates the build directories.
+     *
+     * @since 1.5.10
+     */
+    protected void executeCreateBuildDirectories() {
+        if (buildDirectory() != null) {
+            buildDirectory().mkdirs();
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, builds the main sources.
+     *
+     * @since 1.5.10
+     */
+    protected void executeBuildSources()
+    throws IOException {
+        var sources = new ArrayList<>(sourceFiles());
+        for (var directory : sourceDirectories()) {
+            sources.addAll(FileUtils.getJavaFileList(directory));
+        }
+        executeBuildSources(
+            classpath(),
+            sources,
+            buildDirectory());
+    }
+
+    /**
+     * Part of the {@link #execute} operation, build sources to a destination.
+     *
+     * @param classpath   the classpath list used for the compilation
+     * @param sources     the source files to compile
+     * @param destination the destination directory
+     * @since 1.5.10
+     */
+    protected void executeBuildSources(List<String> classpath, List<File> sources, File destination)
+    throws IOException {
+        if (sources.isEmpty() || destination == null) {
+            return;
+        }
+
+        var filtered_sources = new ArrayList<File>();
+        for (var source : sources) {
+            if (StringUtils.filter(source.getAbsolutePath(), included(), excluded(), false)) {
+                filtered_sources.add(source);
+            }
+        }
+
+        var documentation = ToolProvider.getSystemDocumentationTool();
+        try (var file_manager = documentation.getStandardFileManager(null, null, null)) {
+            var compilation_units = file_manager.getJavaFileObjectsFromFiles(filtered_sources);
+            var diagnostics = new DiagnosticCollector<JavaFileObject>();
+            var options = new ArrayList<>(List.of("-d", destination.getAbsolutePath(), "-cp", FileUtils.joinPaths(classpath)));
+            options.addAll(javadocOptions());
+            var documentation_task = documentation.getTask(null, file_manager, diagnostics, null, options, compilation_units);
+            if (!documentation_task.call()) {
+                diagnostics_.addAll(diagnostics.getDiagnostics());
+                executeProcessDiagnostics(diagnostics);
+            }
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, processes the compilation diagnostics.
+     *
+     * @param diagnostics the diagnostics to process
+     * @since 1.5.10
+     */
+    protected void executeProcessDiagnostics(DiagnosticCollector<JavaFileObject> diagnostics) {
+        for (var diagnostic : diagnostics.getDiagnostics()) {
+            System.err.print(executeFormatDiagnostic(diagnostic));
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, format a single diagnostic.
+     *
+     * @param diagnostic the diagnostic to format
+     * @return a string representation of the diagnostic
+     * @since 1.5.10
+     */
+    protected String executeFormatDiagnostic(Diagnostic<? extends JavaFileObject> diagnostic) {
+        return diagnostic.toString() + System.lineSeparator();
+    }
+
+    /**
+     * Configures a javadoc operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the javadoc operation from
+     * @since 1.5.10
+     */
+    public JavadocOperation fromProject(BaseProject project) {
+        var operation = buildDirectory(project.buildJavadocDirectory())
+            .classpath(project.compileMainClasspath())
+            .classpath(project.buildMainDirectory().getAbsolutePath())
+            .sourceFiles(project.mainSourceFiles());
+        if (project.javaRelease() != null && !javadocOptions().containsRelease()) {
+            javadocOptions().release(project.javaRelease());
+        }
+        return operation;
+    }
+
+    /**
+     * Provides the javadoc build destination directory.
+     *
+     * @param directory the directory to use for the javadoc build destination
+     * @return this operation instance
+     * @since 1.5.10
+     */
+    public JavadocOperation buildDirectory(File directory) {
+        buildDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides entries for the javadoc classpath.
+     *
+     * @param classpath classpath entries
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JavadocOperation classpath(String... classpath) {
+        classpath_.addAll(Arrays.asList(classpath));
+        return this;
+    }
+
+    /**
+     * Provides a list of entries for the javadoc classpath.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param classpath a list of classpath entries
+     * @return this operation instance
+     * @since 1.5.10
+     */
+    public JavadocOperation classpath(List<String> classpath) {
+        classpath_.addAll(classpath);
+        return this;
+    }
+
+    /**
+     * Provides files for which documentation should be generated.
+     *
+     * @param files source files
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JavadocOperation sourceFiles(File... files) {
+        sourceFiles_.addAll(Arrays.asList(files));
+        return this;
+    }
+
+    /**
+     * Provides a list of files for which documentation should be generated.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param files a list of source files
+     * @return this operation instance
+     * @since 1.5.10
+     */
+    public JavadocOperation sourceFiles(List<File> files) {
+        sourceFiles_.addAll(files);
+        return this;
+    }
+
+    /**
+     * Provides directories for which documentation should be generated.
+     *
+     * @param directories source directories
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JavadocOperation sourceDirectories(File... directories) {
+        sourceDirectories_.addAll(Arrays.asList(directories));
+        return this;
+    }
+
+    /**
+     * Provides a list of directories for which documentation should be generated.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param directories a list of source directories
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JavadocOperation sourceDirectories(List<File> directories) {
+        sourceDirectories_.addAll(directories);
+        return this;
+    }
+
+    /**
+     * Provides a list of options to provide to the javadoc tool.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param options the list of javadoc options
+     * @return this operation instance
+     * @since 1.5.10
+     */
+    public JavadocOperation javadocOptions(List<String> options) {
+        javadocOptions_.addAll(options);
+        return this;
+    }
+
+    /**
+     * Provides regex patterns that will be found to determine which files
+     * will be included in the javadoc generation.
+     *
+     * @param included inclusion patterns
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JavadocOperation included(String... included) {
+        included_.addAll(Arrays.stream(included).map(Pattern::compile).toList());
+        return this;
+    }
+
+    /**
+     * Provides patterns that will be found to determine which files
+     * will be included in the javadoc generation.
+     *
+     * @param included inclusion patterns
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JavadocOperation included(Pattern... included) {
+        included_.addAll(Arrays.asList(included));
+        return this;
+    }
+
+    /**
+     * Provides a list of patterns that will be found to determine which files
+     * will be included in the javadoc generation.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param included the list of inclusion patterns
+     * @return this operation instance
+     * @since 1.5.10
+     */
+    public JavadocOperation included(List<Pattern> included) {
+        included_.addAll(included);
+        return this;
+    }
+
+    /**
+     * Provides regex patterns that will be found to determine which files
+     * will be excluded from the javadoc generation.
+     *
+     * @param excluded exclusion patterns
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JavadocOperation excluded(String... excluded) {
+        excluded_.addAll(Arrays.stream(excluded).map(Pattern::compile).toList());
+        return this;
+    }
+
+    /**
+     * Provides patterns that will be found to determine which files
+     * will be excluded from the javadoc generation.
+     *
+     * @param excluded exclusion patterns
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public JavadocOperation excluded(Pattern... excluded) {
+        excluded_.addAll(Arrays.asList(excluded));
+        return this;
+    }
+
+    /**
+     * Provides a list of patterns that will be found to determine which files
+     * will be excluded from the javadoc generation.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param excluded the list of exclusion patterns
+     * @return this operation instance
+     * @since 1.5.10
+     */
+    public JavadocOperation excluded(List<Pattern> excluded) {
+        excluded_.addAll(excluded);
+        return this;
+    }
+
+    /**
+     * Retrieves the build destination directory.
+     *
+     * @return the javadoc build destination
+     * @since 1.5.10
+     */
+    public File buildDirectory() {
+        return buildDirectory_;
+    }
+
+    /**
+     * Retrieves the list of entries for the javadoc classpath.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the javadoc classpath list
+     * @since 1.5.10
+     */
+    public List<String> classpath() {
+        return classpath_;
+    }
+
+    /**
+     * Retrieves the list of files for which documentation should be generation.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the list of files documentation is generated for
+     * @since 1.5.10
+     */
+    public List<File> sourceFiles() {
+        return sourceFiles_;
+    }
+
+    /**
+     * Retrieves the list of directories for which documentation should be generated.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the list of source directories documentation is generated for
+     * @since 1.5.18
+     */
+    public List<File> sourceDirectories() {
+        return sourceDirectories_;
+    }
+
+    /**
+     * Retrieves the list of options for the javadoc tool.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the list of javadoc options
+     * @since 1.5.10
+     */
+    public JavadocOptions javadocOptions() {
+        return javadocOptions_;
+    }
+
+    /**
+     * Retrieves the list of diagnostics resulting from the compilation.
+     *
+     * @return the list of compilation diagnostics
+     * @since 1.5.10
+     */
+    public List<Diagnostic<? extends JavaFileObject>> diagnostics() {
+        return diagnostics_;
+    }
+
+    /**
+     * Retrieves the list of patterns that will be evaluated to determine which files
+     * will be included in the javadoc generation.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the javadoc inclusion patterns
+     * @since 1.5.10
+     */
+    public List<Pattern> included() {
+        return included_;
+    }
+
+    /**
+     * Retrieves the list of patterns that will be evaluated to determine which files
+     * will be excluded the javadoc generation.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the javadoc exclusion patterns
+     * @since 1.5.10
+     */
+    public List<Pattern> excluded() {
+        return excluded_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/JavadocOptions.java b/src/main/java/rife/bld/operations/JavadocOptions.java
new file mode 100644
index 0000000..5b16f64
--- /dev/null
+++ b/src/main/java/rife/bld/operations/JavadocOptions.java
@@ -0,0 +1,959 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.tools.Convert;
+import rife.tools.FileUtils;
+import rife.tools.StringUtils;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Options for the standard javadoc tool.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.12
+ */
+public class JavadocOptions extends ArrayList<String> {
+    public enum Level {
+        PUBLIC, PROTECTED, PACKAGE, PRIVATE
+    }
+
+    public enum ModuleContent {
+        API, ALL
+    }
+
+    public enum ModulePackages {
+        EXPORTED, ALL
+    }
+
+    public enum Override {
+        DETAILS, SUMMARY
+    }
+
+    public enum DocLinkOption {
+        ALL("all"), NONE("none"),
+        ACCESSIBILITY("accessibility"), HTML("html"), MISSING("missing"),
+        REFERENCE("reference"), SYNTAX("syntax"),
+        NO_ACCESSIBILITY("-accessibility"), NO_HTML("-html"), NO_MISSING("-missing"),
+        NO_REFERENCE("-reference"), NO_SYNTAX("-syntax");
+
+        private final String option_;
+
+        DocLinkOption(String option) {
+            option_ = option;
+        }
+
+        private String getOption() {
+            return option_;
+        }
+    }
+
+    /**
+     * Root modules to resolve in addition to the initial modules,
+     * or all modules on the module path if a module is
+     * ALL-MODULE-PATH.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions addModules(String... modules) {
+        return addModules(Arrays.asList(modules));
+    }
+
+    /**
+     * Root modules to resolve in addition to the initial modules,
+     * or all modules on the module path if a module is
+     * ALL-MODULE-PATH.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavadocOptions addModules(List<String> modules) {
+        add("--add-modules");
+        add(StringUtils.join(modules, ","));
+        return this;
+    }
+
+    /**
+     * Compute first sentence with BreakIterator.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions breakIterator() {
+        add("-breakiterator");
+        return this;
+    }
+
+    /**
+     * Generate output via alternate doclet
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions doclet(String className) {
+        add("-doclet");
+        add("className");
+        return this;
+    }
+
+    /**
+     * Specify where to find doclet class files
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions docletPath(String path) {
+        add("-docletpath");
+        add("path");
+        return this;
+    }
+
+    /**
+     * Enable preview language features. To be used in conjunction with {@link #release}.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions enablePreview() {
+        add("--enable-preview");
+        return this;
+    }
+
+    /**
+     * Source file encoding name
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions encoding(String name) {
+        add("-encoding");
+        add("name");
+        return this;
+    }
+
+    /**
+     * Specify a list of packages to exclude
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions excludePackages(String... name) {
+        return excludePackages(Arrays.asList(name));
+    }
+
+    /**
+     * Specify a list of packages to exclude
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavadocOptions excludePackages(List<String> name) {
+        add("-exclude");
+        add(StringUtils.join(name, ","));
+        return this;
+    }
+
+    /**
+     * Override location of installed extensions
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions extDirs(File... dirs) {
+        return extDirs(Arrays.asList(dirs));
+    }
+
+    /**
+     * Override location of installed extensions
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavadocOptions extDirs(List<File> dirs) {
+        add("-extdirs");
+        add(dirs.stream().map(File::getAbsolutePath).collect(Collectors.joining(",")));
+        return this;
+    }
+
+    /**
+     * Limit the universe of observable modules
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions limitModules(String... modules) {
+        return limitModules(Arrays.asList(modules));
+    }
+
+    /**
+     * Limit the universe of observable modules
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions limitModules(List<String> modules) {
+        add("--limit-modules");
+        add(StringUtils.join(modules, ","));
+        return this;
+    }
+
+    /**
+     * Locale to be used, e.g. en_US or en_US_WIN
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions locale(String name) {
+        add("-locale");
+        add("name");
+        return this;
+    }
+
+    /**
+     * Document the specified module(s)
+     *
+     * @return this list of options
+     * @since 1.6.3
+     */
+    public JavadocOptions module(String... modules) {
+        return module(Arrays.asList(modules));
+    }
+
+    /**
+     * Document the specified module(s)
+     *
+     * @return this list of options
+     * @since 1.6.3
+     */
+    public JavadocOptions module(List<String> modules) {
+        add("--module");
+        add(StringUtils.join(modules, ","));
+        return this;
+    }
+
+    /**
+     * Specify where to find application modules
+     *
+     * @return this list of options
+     * @since 1.6.3
+     */
+    public JavadocOptions modulePath(File... paths) {
+        return modulePath(Arrays.asList(paths));
+    }
+
+    /**
+     * Specify where to find application modules
+     *
+     * @return this list of options
+     * @since 1.6.3
+     */
+    public JavadocOptions modulePath(List<File> paths) {
+        add("--module-path");
+        add(FileUtils.joinPaths(paths.stream().map(File::getAbsolutePath).toList()));
+        return this;
+    }
+
+    /**
+     * Specify where to find input source files for multiple modules
+     *
+     * @return this list of options
+     * @since 1.6.3
+     */
+    public JavadocOptions moduleSourcePath(File path) {
+        add("--module-source-path");
+        add(path.getAbsolutePath());
+        return this;
+    }
+
+    /**
+     * Show package/protected/public types and members.
+     * <p>
+     * For named modules, show all packages and all module details.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions showPackage() {
+        add("-package");
+        return this;
+    }
+
+    /**
+     * Show all types and members.
+     * <p>
+     * For named modules, show all packages and all module details.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions showPrivate() {
+        add("-private");
+        return this;
+    }
+
+    /**
+     * Show protected/public types and members (default).
+     * <p>
+     * For named modules, show exported packages and the module's API.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions showProtected() {
+        add("-protected");
+        return this;
+    }
+
+    /**
+     * Show only public types and members.
+     * <p>
+     * For named modules, show exported packages and the module's API.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions showPublic() {
+        add("-public");
+        return this;
+    }
+
+    /**
+     * Do not display status messages
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions quiet() {
+        add("-quiet");
+        return this;
+    }
+
+    /**
+     * Indicates whether the Java SE release was set.
+     *
+     * @return {@code true} if the release was set; or
+     * {@code false} otherwise
+     * @since 1.5.18
+     */
+    public boolean containsRelease() {
+        return contains("-release");
+    }
+
+    /**
+     * Provide source compatibility with specified release
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions release(int version) {
+        add("--release");
+        add(Convert.toString(version));
+        return this;
+    }
+
+    /**
+     * Specifies which members (fields, methods, etc.) will be
+     * documented, where value can be one of "public", "protected",
+     * "package" or "private". The default is "protected", which will
+     * show public and protected members, "public" will show only
+     * public members, "package" will show public, protected and
+     * package members and "private" will show all members.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions showMembers(Level option) {
+        add("--show-members");
+        add(option.name().toLowerCase());
+        return this;
+    }
+
+    /**
+     * Specifies the documentation granularity of module
+     * declarations. Possible values are "api" or "all".
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions showModuleContent(ModuleContent option) {
+        add("--show-module-contents");
+        add(option.name().toLowerCase());
+        return this;
+    }
+
+    /**
+     * Specifies which modules packages will be documented. Possible
+     * values are "exported" or "all" packages.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions showPackages(ModulePackages option) {
+        add("--show-packages");
+        add(option.name().toLowerCase());
+        return this;
+    }
+
+    /**
+     * Specifies which types (classes, interfaces, etc.) will be
+     * documented, where value can be one of "public", "protected",
+     * "package" or "private". The default is "protected", which will
+     * show public and protected types, "public" will show only
+     * public types, "package" will show public, protected and
+     * package types and "private" will show all types.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions showTypes(Level option) {
+        add("--show-types");
+        add(option.name().toLowerCase());
+        return this;
+    }
+
+    /**
+     * Add a script file to the generated documentation
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions addScript(File file) {
+        add("--add-script");
+        add(file.getAbsolutePath());
+        return this;
+    }
+
+    /**
+     * Add a stylesheet file to the generated documentation
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions addStylesheet(File file) {
+        add("--add-stylesheet");
+        add(file.getAbsolutePath());
+        return this;
+    }
+
+    /**
+     * Allow JavaScript in options and comments
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions allowScriptInComments() {
+        add("--allow-script-in-comments");
+        return this;
+    }
+
+    /**
+     * Include @author paragraphs
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions author() {
+        add("-author");
+        return this;
+    }
+
+    /**
+     * Include bottom text for each page
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions bottom(String html) {
+        add("-bottom");
+        add(html);
+        return this;
+    }
+
+    /**
+     * Include title for the overview page
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions docTitle(String html) {
+        add("-doctitle");
+        add(html);
+        return this;
+    }
+
+    /**
+     * Include footer text for each page
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions footer(String html) {
+        add("-footer");
+        add(html);
+        return this;
+    }
+
+    /**
+     * Include header text for each page
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions header(String html) {
+        add("-header");
+        add(html);
+        return this;
+    }
+
+    /**
+     * Include HTML meta tags with package, class and member info
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions keywords() {
+        add("-keywords");
+        return this;
+    }
+
+    /**
+     * Create links to javadoc output at {@code url}
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions link(String url) {
+        add("-link");
+        add(url);
+        return this;
+    }
+
+    /**
+     * Link to docs at {@code url1} using package list at {@code url2}
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions linkOffline(String url1, String url2) {
+        add("-linkoffline");
+        add(url1);
+        add(url2);
+        return this;
+    }
+
+    /**
+     * Link to platform documentation URLs declared in properties file at {@code url}
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions linkPlatformProperties(String url) {
+        add("--link-platform-properties");
+        add(url);
+        return this;
+    }
+
+    /**
+     * Generate source in HTML
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions linkSource() {
+        add("-linksource");
+        return this;
+    }
+
+    /**
+     * File to change style of the generated documentation
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions stylesheet(File file) {
+        add("--main-stylesheet");
+        add(file.getAbsolutePath());
+        return this;
+    }
+
+    /**
+     * Suppress description and tags, generate only declarations
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions noComment() {
+        add("-nocomment");
+        return this;
+    }
+
+    /**
+     * Do not include @deprecated information
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions noDeprecated() {
+        add("-nodeprecated");
+        return this;
+    }
+
+    /**
+     * Do not generate deprecated list
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions noDeprecatedList() {
+        add("-nodeprecatedlist");
+        return this;
+    }
+
+    /**
+     * Do not generate help link
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions noHelp() {
+        add("-nohelp");
+        return this;
+    }
+
+    /**
+     * Do not generate index
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions noIndex() {
+        add("-noindex");
+        return this;
+    }
+
+    /**
+     * Do not generate navigation bar
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions noNavbar() {
+        add("-nonavbar");
+        return this;
+    }
+
+    /**
+     * Do not generate links to the platform documentation
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions noPlatformLinks() {
+        add("--no-platform-links");
+        return this;
+    }
+
+    /**
+     * Exclude the list of qualifiers from the output
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions noQualifier(String... qualifiers) {
+        return noQualifier(Arrays.asList(qualifiers));
+    }
+
+    /**
+     * Exclude the list of qualifiers from the output
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavadocOptions noQualifier(List<String> qualifiers) {
+        add("-noqualifier");
+        add(StringUtils.join(qualifiers, ":"));
+        return this;
+    }
+
+    /**
+     * Do not include @since information
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions noSince() {
+        add("-nosince");
+        return this;
+    }
+
+    /**
+     * Do not include hidden time stamp
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions noTimestamp() {
+        add("-notimestamp");
+        return this;
+    }
+
+    /**
+     * Do not generate class hierarchy
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions noTree() {
+        add("-notree");
+        return this;
+    }
+
+    /**
+     * Document overridden methods in the detail or summary sections.
+     * The default is 'detail'.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions overrideMethods(Override option) {
+        add("--override-methods");
+        add(option.name().toLowerCase());
+        return this;
+    }
+
+    /**
+     * Read overview documentation from HTML file
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavadocOptions overview(File htmlFile) {
+        add("-overview");
+        add(htmlFile.getAbsolutePath());
+        return this;
+    }
+
+    /**
+     * Generate warning about @serial tag
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions serialWarn() {
+        add("-serialwarn");
+        return this;
+    }
+
+    /**
+     * Document new and deprecated API in the specified releases
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions since(String... release) {
+        return since(Arrays.asList(release));
+    }
+
+    /**
+     * Document new and deprecated API in the specified releases
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavadocOptions since(List<String> release) {
+        add("-since");
+        add(StringUtils.join(release, ","));
+        return this;
+    }
+
+    /**
+     * Provide text to use in the heading of the "New API" page
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions sinceLabel(String text) {
+        add("--since-label");
+        add(text);
+        return this;
+    }
+
+    /**
+     * The path for external snippets
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions snippetPath(File path) {
+        add("--snippet-path");
+        add(path.getAbsolutePath());
+        return this;
+    }
+
+    /**
+     * Specify the number of spaces each tab takes up in the source
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions sourceTab(int number) {
+        add("-sourcetab");
+        add(Convert.toString(number));
+        return this;
+    }
+
+    /**
+     * Split index into one file per letter
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions splitIndex() {
+        add("-splitindex");
+        return this;
+    }
+
+    /**
+     * Specify single argument custom tags
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions tag(String name, String locations, String header) {
+        add("-tag");
+        add(name + ":" + locations + ":" + header);
+        return this;
+    }
+
+    /**
+     * The fully qualified name of Taglet to register
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions taglet(String name) {
+        add("-taglet");
+        add(name);
+        return this;
+    }
+
+    /**
+     * The path to Taglets
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions tagletPath(File path) {
+        add("-tagletpath");
+        add(path.getAbsolutePath());
+        return this;
+    }
+
+    /**
+     * Include top text for each page
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions top(String html) {
+        add("-top");
+        add(html);
+        return this;
+    }
+
+    /**
+     * Create class and package usage pages
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions use() {
+        add("-use");
+        return this;
+    }
+
+    /**
+     * Include @version paragraphs
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions version() {
+        add("-version");
+        return this;
+    }
+
+    /**
+     * Browser window title for the documentation
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions windowTitle(String text) {
+        add("-windowtitle");
+        add(text);
+        return this;
+    }
+
+    /**
+     * Enable recommended checks for problems in javadoc comments
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions docLint() {
+        add("-Xdoclint");
+        return this;
+    }
+
+    /**
+     * Enable or disable specific checks for problems in javadoc
+     * comments.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions docLint(DocLinkOption option) {
+        add("-Xdoclint:" + option.getOption());
+        return this;
+    }
+
+    /**
+     * Enable or disable checks in specific packages.
+     * <p>
+     * A package specifier is either a qualified name of a package or a package
+     * name prefix followed by .*, which expands to all sub-packages
+     * of the given package. Prefix the package specifier with - to
+     * disable checks for the specified packages.
+     *
+     * @return this list of options
+     * @since 1.5.12
+     */
+    public JavadocOptions docLintPackage(String... packages) {
+        return docLintPackage(Arrays.asList(packages));
+    }
+
+    /**
+     * Enable or disable checks in specific packages.
+     * <p>
+     * A package specifier is either a qualified name of a package or a package
+     * name prefix followed by .*, which expands to all sub-packages
+     * of the given package. Prefix the package specifier with - to
+     * disable checks for the specified packages.
+     *
+     * @return this list of options
+     * @since 1.5.18
+     */
+    public JavadocOptions docLintPackage(List<String> packages) {
+        add("-Xdoclint/package:" + (StringUtils.join(packages, ",")));
+        return this;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/PrecompileOperation.java b/src/main/java/rife/bld/operations/PrecompileOperation.java
new file mode 100644
index 0000000..9e73f57
--- /dev/null
+++ b/src/main/java/rife/bld/operations/PrecompileOperation.java
@@ -0,0 +1,189 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.Project;
+import rife.template.TemplateDeployer;
+import rife.template.TemplateFactory;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Pre-compiles RIFE2 templates.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class PrecompileOperation extends AbstractOperation<PrecompileOperation> {
+    private final List<TemplateType> templateTypes_ = new ArrayList<>();
+    private final List<File> sourceDirectories_ = new ArrayList<>();
+    private File destinationDirectory_;
+
+    /**
+     * Performs the precompile operation.
+     *
+     * @since 1.5
+     */
+    public void execute() {
+        if (templateTypes_.isEmpty()) {
+            return;
+        }
+
+        if (destinationDirectory() != null) {
+            destinationDirectory().mkdirs();
+        }
+        executeCreateTemplateDeployer().execute();
+        if (!silent()) {
+            System.out.println("Template pre-compilation finished successfully.");
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, gets the template factories for
+     * the registered template types.
+     *
+     * @since 1.5
+     */
+    protected List<TemplateFactory> executeGetTemplateFactories() {
+        var template_factories = new ArrayList<TemplateFactory>();
+        for (var type : templateTypes()) {
+            var factory = TemplateFactory.getFactory(type.identifier());
+            if (factory == null) {
+                System.err.println("ERROR: unknown template type '" + type.identifier() + "'/");
+            } else {
+                template_factories.add(factory);
+            }
+        }
+
+        return template_factories;
+    }
+
+    /**
+     * Part of the {@link #execute} operation, creates the {@code TemplateDeployer}
+     * that will precompile the templates.
+     *
+     * @since 1.5
+     */
+    protected TemplateDeployer executeCreateTemplateDeployer() {
+        return new TemplateDeployer()
+            .verbose(true)
+            .directoryPaths(FileUtils.combineToAbsolutePaths(sourceDirectories()))
+            .generationPath(destinationDirectory().getAbsolutePath())
+            .templateFactories(executeGetTemplateFactories());
+    }
+
+    /**
+     * Configures a precompile operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the precompile operation from
+     * @since 1.5
+     */
+    public PrecompileOperation fromProject(BaseProject project) {
+        return sourceDirectories(project.srcMainResourcesTemplatesDirectory())
+            .destinationDirectory(project.buildTemplatesDirectory());
+    }
+
+    /**
+     * Provides template types that will be pre-compiled.
+     *
+     * @param types pre-compiled template types
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public PrecompileOperation templateTypes(TemplateType... types) {
+        templateTypes_.addAll(List.of(types));
+        return this;
+    }
+
+    /**
+     * Provides a list of template types that will be pre-compiled.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param types a list of pre-compiled template types
+     * @return this operation instance
+     * @since 1.5
+     */
+    public PrecompileOperation templateTypes(List<TemplateType> types) {
+        templateTypes_.addAll(types);
+        return this;
+    }
+
+    /**
+     * Provides source directories that will be used for the template pre-compilation.
+     *
+     * @param sources source directories
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public PrecompileOperation sourceDirectories(File... sources) {
+        sourceDirectories_.addAll(List.of(sources));
+        return this;
+    }
+
+    /**
+     * Provides a list of source directories that will be used for the template pre-compilation.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param sources a list of source directories
+     * @return this operation instance
+     * @since 1.5
+     */
+    public PrecompileOperation sourceDirectories(List<File> sources) {
+        sourceDirectories_.addAll(sources);
+        return this;
+    }
+
+    /**
+     * Provides the destination directory in which the pre-compiled templates will be stored.
+     *
+     * @param directory the pre-compilation destination directory
+     * @return this operation instance
+     * @since 1.5
+     */
+    public PrecompileOperation destinationDirectory(File directory) {
+        destinationDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Retrieves the template types that will be pre-compiled.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the pre-compiled template types
+     * @since 1.5
+     */
+    public List<TemplateType> templateTypes() {
+        return templateTypes_;
+    }
+
+    /**
+     * Retrieves the source directories that will be used for the template pre-compilation.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the source directories
+     * @since 1.5
+     */
+    public List<File> sourceDirectories() {
+        return sourceDirectories_;
+    }
+
+    /**
+     * Provides the destination directory in which the pre-compiled templates will be stored.
+     *
+     * @return the pre-compilation destination directory
+     * @since 1.5
+     */
+    public File destinationDirectory() {
+        return destinationDirectory_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/PublishOperation.java b/src/main/java/rife/bld/operations/PublishOperation.java
new file mode 100644
index 0000000..26df254
--- /dev/null
+++ b/src/main/java/rife/bld/operations/PublishOperation.java
@@ -0,0 +1,706 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.BldVersion;
+import rife.bld.dependencies.*;
+import rife.bld.dependencies.exceptions.DependencyException;
+import rife.bld.operations.exceptions.OperationOptionException;
+import rife.bld.operations.exceptions.SignException;
+import rife.bld.operations.exceptions.UploadException;
+import rife.bld.publish.*;
+import rife.tools.FileUtils;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import java.io.*;
+import java.net.*;
+import java.net.http.*;
+import java.net.http.HttpRequest.BodyPublishers;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.security.*;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.util.ArrayList;
+import java.util.List;
+
+import static rife.bld.publish.MetadataBuilder.SNAPSHOT_TIMESTAMP_FORMATTER;
+import static rife.tools.HttpUtils.*;
+import static rife.tools.StringUtils.encodeHexLower;
+
+/**
+ * Published artifacts to a Maven repository.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.7
+ */
+public class PublishOperation extends AbstractOperation<PublishOperation> {
+    private ArtifactRetriever retriever_ = null;
+    private final HttpClient client_ = HttpClient.newHttpClient();
+
+    private ZonedDateTime moment_ = null;
+    private final List<Repository> repositories_ = new ArrayList<>();
+    private final DependencyScopes dependencies_ = new DependencyScopes();
+    private PublishInfo info_ = new PublishInfo();
+    private final List<PublishArtifact> artifacts_ = new ArrayList<>();
+
+    /**
+     * Performs the publish operation.
+     *
+     * @since 1.5.7
+     */
+    public void execute() {
+        if (repositories().isEmpty()) {
+            throw new OperationOptionException("ERROR: the publication repositories should be specified");
+        }
+
+        var moment = moment_;
+        if (moment == null) {
+            moment = ZonedDateTime.now();
+        }
+
+        executeValidateArtifacts();
+
+        var actual_version = info().version();
+
+        for (var repository : repositories()) {
+            System.out.println("Publishing to '" + repository.location() + "'");
+
+            // treat a snapshot version differently
+            if (info().version().isSnapshot()) {
+                actual_version = executePublishSnapshotMetadata(repository, moment);
+            }
+
+            executePublishArtifacts(repository, actual_version);
+            executePublishPom(repository, actual_version);
+            executePublishMetadata(repository, moment);
+        }
+        if (!silent()) {
+            System.out.println("Publishing finished successfully.");
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, validates the publishing artifacts.
+     *
+     * @since 1.5.10
+     */
+    protected void executeValidateArtifacts() {
+        artifacts().removeIf(artifact -> {
+            if (!artifact.file().exists()) {
+                System.out.println("WARNING: Missing artifact file '" + artifact.file() + "', skipping.");
+                return true;
+            }
+            return false;
+        });
+    }
+
+    /**
+     * Part of the {@link #execute} operation, publishes snapshot metadata if this
+     * is a snapshot version.
+     *
+     * @param repository the repository to publish to
+     * @param moment the timestamp at which the operation started executing
+     * @return the adapted version number with the snapshot timestamp and build number
+     * @since 1.5.10
+     */
+    protected VersionNumber executePublishSnapshotMetadata(Repository repository, ZonedDateTime moment) {
+        var metadata = new MetadataBuilder();
+
+        VersionNumber actual_version;
+        if (repository.isLocal()) {
+            actual_version = info().version();
+            metadata.snapshotLocal();
+        } else {
+            var snapshot_timestamp = SNAPSHOT_TIMESTAMP_FORMATTER.format(moment.withZoneSameInstant(ZoneId.of("UTC")));
+
+            // determine which build number to use
+            var snapshot_build_number = 1;
+            try {
+                var resolver = new DependencyResolver(artifactRetriever(), List.of(repository), new Dependency(info().groupId(), info().artifactId(), info().version()));
+                var snapshot_meta = resolver.getSnapshotMavenMetadata();
+                snapshot_build_number = snapshot_meta.getSnapshotBuildNumber() + 1;
+            } catch (DependencyException e) {
+                // start the build number from the beginning
+                System.out.println("Unable to retrieve previous snapshot metadata, using first build number.");
+                System.out.println("This is expected for a first publication or for publication to a staging repository.");
+            }
+
+            // adapt the actual version that's use by the artifacts
+            var snapshot_qualifier = snapshot_timestamp + "-" + snapshot_build_number;
+            actual_version = info().version().withQualifier(snapshot_qualifier);
+
+            // record the snapshot information in the metadata
+            metadata.snapshot(moment, snapshot_build_number);
+        }
+
+        // include version information about each artifact in this snapshot
+        for (var artifact : artifacts()) {
+            metadata.snapshotVersions().add(new SnapshotVersion(artifact.classifier(), artifact.type(), actual_version.toString(), moment));
+        }
+        metadata.snapshotVersions().add(new SnapshotVersion(null, "pom", actual_version.toString(), moment));
+
+        // publish snapshot metadata
+        executePublishStringArtifact(
+            repository,
+            metadata
+                .info(info())
+                .updated(moment)
+                .build(),
+            info().version() + "/" + repository.getMetadataName(), true);
+        return actual_version;
+    }
+
+    /**
+     * Part of the {@link #execute} operation, publishes all the artifacts
+     * in this operation.
+     *
+     * @param repository the repository to publish to
+     * @param actualVersion the version that was potentially adapted if this is a snapshot
+     * @since 1.5.10
+     */
+    protected void executePublishArtifacts(Repository repository, VersionNumber actualVersion) {
+        // upload artifacts
+        for (var artifact : artifacts()) {
+            var artifact_name = new StringBuilder(info().artifactId()).append("-").append(actualVersion);
+            if (!artifact.classifier().isEmpty()) {
+                artifact_name.append("-").append(artifact.classifier());
+            }
+            var type = artifact.type();
+            if (type == null) {
+                type = "jar";
+            }
+            artifact_name.append(".").append(type);
+
+            executePublishFileArtifact(repository, artifact.file(), info().version() + "/" + artifact_name);
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, publishes the Maven POM.
+     *
+     * @param repository the repository to publish to
+     * @param actualVersion the version that was potentially adapted if this is a snapshot
+     * @since 1.5.10
+     */
+    protected void executePublishPom(Repository repository, VersionNumber actualVersion) {
+        // generate and upload pom
+        executePublishStringArtifact(
+            repository,
+            new PomBuilder().info(info()).dependencies(dependencies()).build(),
+            info().version() + "/" + info().artifactId() + "-" + actualVersion + ".pom", true);
+    }
+
+    /**
+     * Part of the {@link #execute} operation, publishes the artifact metadata.
+     *
+     * @param repository the repository to publish to
+     * @param moment the timestamp at which the operation started executing
+     * @since 1.5.8
+     */
+    protected void executePublishMetadata(Repository repository, ZonedDateTime moment) {
+        var current_versions = new ArrayList<VersionNumber>();
+        var resolver = new DependencyResolver(artifactRetriever(), List.of(repository), new Dependency(info().groupId(), info().artifactId(), info().version()));
+        try {
+            current_versions.addAll(resolver.getMavenMetadata().getVersions());
+        } catch (DependencyException e) {
+            // no existing versions could be found
+            System.out.println("Unable to retrieve previous artifact metadata, proceeding with empty version list.");
+            System.out.println("This is expected for a first publication or for publication to a staging repository.");
+        }
+
+        // upload metadata
+        executePublishStringArtifact(
+            repository,
+            new MetadataBuilder()
+                .info(info())
+                .updated(moment)
+                .otherVersions(current_versions)
+                .build(),
+            repository.getMetadataName(), false);
+    }
+
+    /**
+     * Part of the {@link #execute} operation, publishes a single artifact with
+     * hashes and a potential signature.
+     *
+     * @param repository the repository to publish to
+     * @param content    the content of the file that needs to be published
+     * @param path       the path of the artifact within the artifact folder
+     * @param sign       indicates whether the artifact should be signed
+     * @since 1.5.18
+     */
+    protected void executePublishStringArtifact(Repository repository, String content, String path, boolean sign)
+    throws UploadException {
+        try {
+            if (sign && info().signKey() != null) {
+                var tmp_file = File.createTempFile(path, "gpg");
+                FileUtils.writeString(content, tmp_file);
+                try {
+                    executeTransferArtifact(repository, executeSignFile(tmp_file), path + ".asc");
+                } finally {
+                    tmp_file.delete();
+                }
+            }
+
+            if (!repository.isLocal()) {
+                executeTransferArtifact(repository, generateHash(content, "MD5"), path + ".md5");
+                executeTransferArtifact(repository, generateHash(content, "SHA-1"), path + ".sha1");
+                executeTransferArtifact(repository, generateHash(content, "SHA-256"), path + ".sha256");
+                executeTransferArtifact(repository, generateHash(content, "SHA-512"), path + ".sha512");
+            }
+
+            executeTransferArtifact(repository, content, path);
+        } catch (NoSuchAlgorithmException | IOException e) {
+            throw new UploadException(path, e);
+        }
+    }
+
+    /**
+     * Generates the hash for a particular string and algorithm.
+     *
+     * @param content   the string to generate the hash for
+     * @param algorithm the hashing algorithm to use
+     * @return the generates hash, encoded in lowercase hex
+     * @throws NoSuchAlgorithmException when the hashing algorithm couldn't be found
+     * @since 1.5.18
+     */
+    protected String generateHash(String content, String algorithm)
+    throws NoSuchAlgorithmException {
+        var digest = MessageDigest.getInstance(algorithm);
+        digest.update(content.getBytes(StandardCharsets.UTF_8));
+        return encodeHexLower(digest.digest());
+    }
+
+    /**
+     * Part of the {@link #execute} operation, publishes a single artifact with
+     * hashes and a potential signature.
+     *
+     * @param repository the repository to publish to
+     * @param file       the file that needs to be published
+     * @param path       the path of the artifact within the artifact folder
+     * @since 1.5.8
+     */
+    protected void executePublishFileArtifact(Repository repository, File file, String path)
+    throws UploadException {
+        try {
+            var digest_md5 = MessageDigest.getInstance("MD5");
+            var digest_sha1 = MessageDigest.getInstance("SHA-1");
+            var digest_sha256 = MessageDigest.getInstance("SHA-256");
+            var digest_sha512 = MessageDigest.getInstance("SHA-512");
+
+            try (var is = Files.newInputStream(file.toPath())) {
+                var buffer = new byte[1024];
+                var return_value = -1;
+                while (-1 != (return_value = is.read(buffer))) {
+                    digest_md5.update(buffer, 0, return_value);
+                    digest_sha1.update(buffer, 0, return_value);
+                    digest_sha256.update(buffer, 0, return_value);
+                    digest_sha512.update(buffer, 0, return_value);
+                }
+
+                if (info().signKey() != null) {
+                    executeTransferArtifact(repository, executeSignFile(file), path + ".asc");
+                }
+
+                if (!repository.isLocal()) {
+                    executeTransferArtifact(repository, encodeHexLower(digest_md5.digest()), path + ".md5");
+                    executeTransferArtifact(repository, encodeHexLower(digest_sha1.digest()), path + ".sha1");
+                    executeTransferArtifact(repository, encodeHexLower(digest_sha256.digest()), path + ".sha256");
+                    executeTransferArtifact(repository, encodeHexLower(digest_sha512.digest()), path + ".sha512");
+                }
+
+                executeTransferArtifact(repository, file, path);
+            }
+        } catch (IOException | NoSuchAlgorithmException e) {
+            throw new UploadException(path, e);
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, generates the signature of a file.
+     *
+     * @param file the file whose signature will be generated
+     * @since 1.5.8
+     */
+    protected String executeSignFile(File file)
+    throws IOException, FileUtilsErrorException {
+        var gpg_path = info().signGpgPath();
+        if (gpg_path == null) {
+            gpg_path = "gpg";
+        }
+        var gpg_arguments = new ArrayList<>(List.of(
+            gpg_path,
+            "--pinentry-mode=loopback",
+            "--no-tty", "--batch", "--detach-sign", "--armor", "-o-",
+            "--local-user", info().signKey()));
+        if (info().signPassphrase() != null) {
+            gpg_arguments.addAll(List.of("--passphrase", info().signPassphrase()));
+        }
+        gpg_arguments.add(file.getAbsolutePath());
+        var builder = new ProcessBuilder(gpg_arguments);
+        builder.redirectOutput(ProcessBuilder.Redirect.PIPE);
+        builder.redirectError(ProcessBuilder.Redirect.PIPE);
+        var process = builder.start();
+        try {
+            process.waitFor();
+        } catch (InterruptedException e) {
+            throw new SignException(file, e.getMessage());
+        }
+
+        if (process.exitValue() != 0) {
+            var error = FileUtils.readString(process.getErrorStream());
+            throw new SignException(file, error);
+        }
+        return FileUtils.readString(process.getInputStream());
+    }
+
+    /**
+     * Part of the {@link #execute} operation, transfers an artifact.
+     *
+     * @param repository the repository to transfer to
+     * @param file       the file to transfer
+     * @param path       the path of the file within the artifact folder
+     * @since 1.5.18
+     */
+    protected void executeTransferArtifact(Repository repository, File file, String path)
+    throws FileUtilsErrorException, IOException {
+        if (repository.isLocal()) {
+            executeStoreArtifact(repository, file, path);
+        } else {
+            executeUploadArtifact(repository, BodyPublishers.ofFile(file.toPath()), path);
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, transfers an artifact.
+     *
+     * @param repository the repository to transfer to
+     * @param content    the content to transfer
+     * @param path       the path of the file within the artifact folder
+     * @since 1.5.18
+     */
+    protected void executeTransferArtifact(Repository repository, String content, String path)
+    throws FileUtilsErrorException, IOException {
+        if (repository.isLocal()) {
+            executeStoreArtifact(repository, content, path);
+        } else {
+            executeUploadArtifact(repository, BodyPublishers.ofString(content), path);
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, stores an artifact.
+     *
+     * @param repository the repository to store in
+     * @param file       the file to store
+     * @param path       the path of the file within the artifact folder
+     * @since 1.5.18
+     */
+    protected void executeStoreArtifact(Repository repository, File file, String path)
+    throws FileUtilsErrorException {
+        var location = repository.getArtifactLocation(info().groupId(), info().artifactId()) + path;
+        System.out.print("Storing: " + location + " ... ");
+        try {
+            var target = new File(location);
+            target.getParentFile().mkdirs();
+            FileUtils.copy(file, target);
+            System.out.print("done");
+        } catch (FileUtilsErrorException e) {
+            System.out.print("error");
+            throw e;
+        } finally {
+            System.out.println();
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, stores an artifact.
+     *
+     * @param repository the repository to store in
+     * @param content    the content to store
+     * @param path       the path of the file within the artifact folder
+     * @since 1.5.18
+     */
+    protected void executeStoreArtifact(Repository repository, String content, String path)
+    throws FileUtilsErrorException {
+        var location = repository.getArtifactLocation(info().groupId(), info().artifactId()) + path;
+        System.out.print("Storing: " + location + " ... ");
+        try {
+            var target = new File(location);
+            target.getParentFile().mkdirs();
+            FileUtils.writeString(content, target);
+            System.out.print("done");
+        } catch (FileUtilsErrorException e) {
+            System.out.print("error");
+            throw e;
+        } finally {
+            System.out.println();
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, uploads an artifact.
+     *
+     * @param repository the repository to upload to
+     * @param body       the body of the file to upload
+     * @param path       the path of the file within the artifact folder
+     * @since 1.5.18
+     */
+    protected void executeUploadArtifact(Repository repository, HttpRequest.BodyPublisher body, String path) {
+        var url = repository.getArtifactLocation(info().groupId(), info().artifactId()) + path;
+        System.out.print("Uploading: " + url + " ... ");
+        System.out.flush();
+        try {
+            var builder = HttpRequest.newBuilder()
+                .PUT(body)
+                .uri(URI.create(url))
+                .header(HEADER_USER_AGENT, "bld/" + BldVersion.getVersion() +
+                    " (" + System.getProperty("os.name") + "; " + System.getProperty("os.version") + "; " + System.getProperty("os.arch") + ") " +
+                    "(" + System.getProperty("java.vendor") + " " + System.getProperty("java.vm.name") + "; " + System.getProperty("java.version") + "; " + System.getProperty("java.vm.version") + ")");
+            if (repository.username() != null && repository.password() != null) {
+                builder.header(HEADER_AUTHORIZATION, basicAuthorizationHeader(repository.username(), repository.password()));
+            }
+            var request = builder.build();
+
+            HttpResponse<String> response;
+            try {
+                response = client_.send(request, HttpResponse.BodyHandlers.ofString());
+            } catch (IOException e) {
+                System.out.print("I/O error");
+                throw new UploadException(url, e);
+            } catch (InterruptedException e) {
+                System.out.print("interrupted");
+                throw new UploadException(url, e);
+            }
+
+            if (response.statusCode() >= 200 &&
+                response.statusCode() < 300) {
+                System.out.print("done");
+            } else {
+                System.out.print("failed");
+                throw new UploadException(url, response.statusCode());
+            }
+        } finally {
+            System.out.println();
+        }
+    }
+
+    /**
+     * Configures a publish operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the publish operation from
+     * @since 1.5.7
+     */
+    public PublishOperation fromProject(BaseProject project) {
+        artifactRetriever(project.artifactRetriever());
+        dependencies().include(project.dependencies());
+        artifacts(List.of(
+            new PublishArtifact(new File(project.buildDistDirectory(), project.jarFileName()), "", "jar"),
+            new PublishArtifact(new File(project.buildDistDirectory(), project.sourcesJarFileName()), "sources", "jar"),
+            new PublishArtifact(new File(project.buildDistDirectory(), project.javadocJarFileName()), "javadoc", "jar")));
+        if (info().groupId() == null) {
+            info().groupId(project.pkg());
+        }
+        if (info().artifactId() == null) {
+            info().artifactId(project.name().toLowerCase());
+        }
+        if (info().version() == null) {
+            info().version(project.version());
+        }
+        if (info().name() == null) {
+            info().name(project.name());
+        }
+        return this;
+    }
+
+    /**
+     * Provides the moment of publication.
+     * <p>
+     * If this is not provided, the publication will use the current data and time.
+     *
+     * @param moment the publication moment
+     * @return this operation instance
+     * @since 1.5.8
+     */
+    public PublishOperation moment(ZonedDateTime moment) {
+        moment_ = moment;
+        return this;
+    }
+
+    /**
+     * Retrieves the moment of publication.
+     *
+     * @return the moment of publication; or
+     * {@code null} if it wasn't provided
+     * @since 1.5.8
+     */
+    public ZonedDateTime moment() {
+        return moment_;
+    }
+
+    /**
+     * Provides a repository to publish to, can be called multiple times to
+     * add more repositories.
+     *
+     * @param repository a repository that the artifacts will be published to
+     * @return this operation instance
+     * @since 1.5.7
+     */
+    public PublishOperation repository(Repository repository) {
+        repositories_.add(repository);
+        return this;
+    }
+
+    /**
+     * Provides repositories to publish to.
+     *
+     * @param repositories repositories where the artifacts will be published
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public PublishOperation repositories(Repository... repositories) {
+        repositories_.addAll(List.of(repositories));
+        return this;
+    }
+
+    /**
+     * Provides a list of repositories to publish to.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param repositories a list of repositories where the artifacts will be published
+     * @return this operation instance
+     * @since 1.5
+     */
+    public PublishOperation repositories(List<Repository> repositories) {
+        repositories_.addAll(repositories);
+        return this;
+    }
+
+    /**
+     * Provides scoped dependencies to reference in the publication.
+     *
+     * @param dependencies the dependencies that will be references in the publication
+     * @return this operation instance
+     * @since 1.5.7
+     */
+    public PublishOperation dependencies(DependencyScopes dependencies) {
+        dependencies_.include(dependencies);
+        return this;
+    }
+
+    /**
+     * Provides the publication info structure.
+     *
+     * @param info the publication info
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public PublishOperation info(PublishInfo info) {
+        info_ = info;
+        return this;
+    }
+
+    /**
+     * Provides artifacts that will be published.
+     *
+     * @param artifacts artifacts to publish
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public PublishOperation artifacts(PublishArtifact... artifacts) {
+        artifacts_.addAll(List.of(artifacts));
+        return this;
+    }
+
+    /**
+     * Provides a list of artifacts that will be published.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param artifacts a list of artifacts to publish
+     * @return this operation instance
+     * @since 1.5.7
+     */
+    public PublishOperation artifacts(List<PublishArtifact> artifacts) {
+        artifacts_.addAll(artifacts);
+        return this;
+    }
+
+    /**
+     * Provides the artifact retriever to use.
+     *
+     * @param retriever the artifact retriever
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public PublishOperation artifactRetriever(ArtifactRetriever retriever) {
+        retriever_ = retriever;
+        return this;
+    }
+
+    /**
+     * Retrieves the repositories to which will be published.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the repositories where the artifacts will be published
+     * @since 1.51.8
+     */
+    public List<Repository> repositories() {
+        return repositories_;
+    }
+
+    /**
+     * Retrieves the scoped dependencies to reference in the publication.
+     * <p>
+     * This is a modifiable structure that can be retrieved and changed.
+     *
+     * @return the scoped dependencies
+     * @since 1.5.7
+     */
+    public DependencyScopes dependencies() {
+        return dependencies_;
+    }
+
+    /**
+     * Retrieves the publication info structure.
+     * <p>
+     * This is a modifiable structure that can be retrieved and changed.
+     *
+     * @return the publication info
+     * @since 1.5.7
+     */
+    public PublishInfo info() {
+        return info_;
+    }
+
+    /**
+     * Retrieves the list of artifacts that will be published.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the list of artifacts to publish
+     * @since 1.5.7
+     */
+    public List<PublishArtifact> artifacts() {
+        return artifacts_;
+    }
+
+    /**
+     * Returns the artifact retriever that is used.
+     *
+     * @return the artifact retriever
+     * @since 1.5.18
+     */
+    public ArtifactRetriever artifactRetriever() {
+        if (retriever_ == null) {
+            return ArtifactRetriever.instance();
+        }
+        return retriever_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/PurgeOperation.java b/src/main/java/rife/bld/operations/PurgeOperation.java
new file mode 100644
index 0000000..c978f4d
--- /dev/null
+++ b/src/main/java/rife/bld/operations/PurgeOperation.java
@@ -0,0 +1,369 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.dependencies.*;
+
+import java.io.File;
+import java.util.*;
+
+import static rife.bld.dependencies.Dependency.CLASSIFIER_JAVADOC;
+import static rife.bld.dependencies.Dependency.CLASSIFIER_SOURCES;
+
+/**
+ * Transitively checks all the artifacts for dependencies in the directories
+ * that are separated out by scope, any files that aren't required will be deleted.
+ * <p>
+ * If a directory is not provided, no purge will occur for that
+ * dependency scope.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class PurgeOperation extends AbstractOperation<PurgeOperation> {
+    private ArtifactRetriever retriever_ = null;
+    private final List<Repository> repositories_ = new ArrayList<>();
+    private final DependencyScopes dependencies_ = new DependencyScopes();
+    private File libCompileDirectory_;
+    private File libRuntimeDirectory_;
+    private File libStandaloneDirectory_;
+    private File libTestDirectory_;
+    private boolean preserveSources_ = false;
+    private boolean preserveJavadoc_ = false;
+
+    /**
+     * Performs the purge operation.
+     *
+     * @since 1.5
+     */
+    public void execute() {
+        executePurgeCompileDependencies();
+        executePurgeRuntimeDependencies();
+        executePurgeStandaloneDependencies();
+        executePurgeTestDependencies();
+        if (!silent()) {
+            System.out.println("Purging finished successfully.");
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, purge the {@code compile} scope artifacts.
+     *
+     * @since 1.5
+     */
+    protected void executePurgeCompileDependencies() {
+        executePurgeDependencies(libCompileDirectory(), dependencies().resolveCompileDependencies(artifactRetriever(), repositories()));
+    }
+
+    /**
+     * Part of the {@link #execute} operation, purge the {@code runtime} scope artifacts.
+     *
+     * @since 1.5
+     */
+    protected void executePurgeRuntimeDependencies() {
+        executePurgeDependencies(libRuntimeDirectory(), dependencies().resolveRuntimeDependencies(artifactRetriever(), repositories()));
+    }
+
+    /**
+     * Part of the {@link #execute} operation, purge the {@code standalone} scope artifacts.
+     *
+     * @since 1.5
+     */
+    protected void executePurgeStandaloneDependencies() {
+        executePurgeDependencies(libStandaloneDirectory(), dependencies().resolveStandaloneDependencies(artifactRetriever(), repositories()));
+    }
+
+    /**
+     * Part of the {@link #execute} operation, purge the {@code test} scope artifacts.
+     *
+     * @since 1.5
+     */
+    protected void executePurgeTestDependencies() {
+        executePurgeDependencies(libTestDirectory(), dependencies().resolveTestDependencies(artifactRetriever(), repositories()));
+    }
+
+    /**
+     * Part of the {@link #execute} operation, purge the artifacts for a particular dependency scope.
+     *
+     * @param destinationDirectory the directory from which the artifacts should be purged
+     * @param dependencies         the dependencies to purge
+     * @since 1.6
+     */
+    protected void executePurgeDependencies(File destinationDirectory, DependencySet dependencies) {
+        if (destinationDirectory == null) {
+            return;
+        }
+        var filenames = new HashSet<String>();
+        for (var dependency : dependencies) {
+            addTransferLocations(filenames, dependency);
+            if (preserveSources_) {
+                addTransferLocations(filenames, dependency.withClassifier(CLASSIFIER_SOURCES));
+            }
+            if (preserveJavadoc_) {
+                addTransferLocations(filenames, dependency.withClassifier(CLASSIFIER_JAVADOC));
+            }
+        }
+
+        boolean printed_header = false;
+        for (var file : destinationDirectory.listFiles()) {
+            if (!filenames.contains(file.getName())) {
+                if (!printed_header) {
+                    printed_header = true;
+                    System.out.println("Deleting from " + destinationDirectory.getName() + ":");
+                }
+                System.out.println("    " + file.getName());
+                file.delete();
+            }
+        }
+    }
+
+    private void addTransferLocations(HashSet<String> filenames, Dependency dependency) {
+        for (var location : new DependencyResolver(artifactRetriever(), repositories(), dependency).getTransferLocations()) {
+            filenames.add(location.substring(location.lastIndexOf("/") + 1));
+        }
+    }
+
+    /**
+     * Configures a compile operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the compile operation from
+     * @since 1.5
+     */
+    public PurgeOperation fromProject(BaseProject project) {
+        return artifactRetriever(project.artifactRetriever())
+            .repositories(project.repositories())
+            .dependencies(project.dependencies())
+            .libCompileDirectory(project.libCompileDirectory())
+            .libRuntimeDirectory(project.libRuntimeDirectory())
+            .libStandaloneDirectory(project.libStandaloneDirectory())
+            .libTestDirectory(project.libTestDirectory())
+            .preserveSources(project.downloadSources())
+            .preserveJavadoc(project.downloadJavadoc());
+    }
+
+    /**
+     * Indicates whether the sources classifier files should be preserved.
+     *
+     * @param flag {@code true} if the sources classifier files should be preserved; or
+     *             {@code false} otherwise
+     * @return this operation instance
+     * @since 1.5.6
+     */
+    public PurgeOperation preserveSources(boolean flag) {
+        preserveSources_ = flag;
+        return this;
+    }
+
+    /**
+     * Indicates whether the javadoc classifier files should be preserved.
+     *
+     * @param flag {@code true} if the javadoc classifier files should be preserved; or
+     *             {@code false} otherwise
+     * @return this operation instance
+     * @since 1.5.6
+     */
+    public PurgeOperation preserveJavadoc(boolean flag) {
+        preserveJavadoc_ = flag;
+        return this;
+    }
+
+    /**
+     * Provides repositories to resolve the dependencies against.
+     *
+     * @param repositories repositories against which dependencies will be resolved
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public PurgeOperation repositories(Repository... repositories) {
+        repositories_.addAll(List.of(repositories));
+        return this;
+    }
+
+    /**
+     * Provides a list of repositories to resolve the dependencies against.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param repositories a list of repositories against which dependencies will be resolved
+     * @return this operation instance
+     * @since 1.5
+     */
+    public PurgeOperation repositories(List<Repository> repositories) {
+        repositories_.addAll(repositories);
+        return this;
+    }
+
+    /**
+     * Provides scoped dependencies for artifact purge.
+     *
+     * @param dependencies the dependencies that will be resolved for artifact purge
+     * @return this operation instance
+     * @since 1.5
+     */
+    public PurgeOperation dependencies(DependencyScopes dependencies) {
+        dependencies_.include(dependencies);
+        return this;
+    }
+
+    /**
+     * Provides the {@code compile} scope purge directory.
+     *
+     * @param directory the directory to purge the {@code compile} scope artifacts from
+     * @return this operation instance
+     * @since 1.5
+     */
+    public PurgeOperation libCompileDirectory(File directory) {
+        libCompileDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides the {@code runtime} scope purge directory.
+     *
+     * @param directory the directory to purge the {@code runtime} scope artifacts from
+     * @return this operation instance
+     * @since 1.5
+     */
+    public PurgeOperation libRuntimeDirectory(File directory) {
+        libRuntimeDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides the {@code standalone} scope purge directory.
+     *
+     * @param directory the directory to purge the {@code standalone} scope artifacts from
+     * @return this operation instance
+     * @since 1.5
+     */
+    public PurgeOperation libStandaloneDirectory(File directory) {
+        libStandaloneDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides the {@code test} scope purge directory.
+     *
+     * @param directory the directory to purge the {@code test} scope artifacts from
+     * @return this operation instance
+     * @since 1.5
+     */
+    public PurgeOperation libTestDirectory(File directory) {
+        libTestDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides the artifact retriever to use.
+     *
+     * @param retriever the artifact retriever
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public PurgeOperation artifactRetriever(ArtifactRetriever retriever) {
+        retriever_ = retriever;
+        return this;
+    }
+
+    /**
+     * Retrieves the repositories in which the dependencies will be resolved.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the repositories used for dependency resolution
+     * @since 1.5
+     */
+    public List<Repository> repositories() {
+        return repositories_;
+    }
+
+    /**
+     * Retrieves the scoped dependencies that will be used for artifact purge.
+     * <p>
+     * This is a modifiable structure that can be retrieved and changed.
+     *
+     * @return the scoped dependencies
+     * @since 1.5
+     */
+    public DependencyScopes dependencies() {
+        return dependencies_;
+    }
+
+    /**
+     * Retrieves the {@code compile} scope purge directory.
+     *
+     * @return the {@code compile} scope purge directory
+     * @since 1.5
+     */
+    public File libCompileDirectory() {
+        return libCompileDirectory_;
+    }
+
+    /**
+     * Retrieves the {@code runtime} scope purge directory.
+     *
+     * @return the {@code runtime} scope purge directory
+     * @since 1.5
+     */
+    public File libRuntimeDirectory() {
+        return libRuntimeDirectory_;
+    }
+
+    /**
+     * Retrieves the {@code standalone} scope purge directory.
+     *
+     * @return the {@code standalone} scope purge directory
+     * @since 1.5
+     */
+    public File libStandaloneDirectory() {
+        return libStandaloneDirectory_;
+    }
+
+    /**
+     * Retrieves the {@code test} scope purge directory.
+     *
+     * @return the {@code test} scope purge directory
+     * @since 1.5
+     */
+    public File libTestDirectory() {
+        return libTestDirectory_;
+    }
+
+    /**
+     * Retrieves whether the sources classifier files should be preserved.
+     *
+     * @return {@code true} if the sources classifier should be preserved; or
+     * {@code false} otherwise
+     * @since 1.5.6
+     */
+    public boolean preserveSources() {
+        return preserveSources_;
+    }
+
+    /**
+     * Retrieves whether the javadoc classifier files should be preserved.
+     *
+     * @return {@code true} if the javadoc classifier should be preserved; or
+     * {@code false} otherwise
+     * @since 1.5.6
+     */
+    public boolean preserveJavadoc() {
+        return preserveJavadoc_;
+    }
+
+    /**
+     * Returns the artifact retriever that is used.
+     *
+     * @return the artifact retriever
+     * @since 1.5.18
+     */
+    public ArtifactRetriever artifactRetriever() {
+        if (retriever_ == null) {
+            return ArtifactRetriever.instance();
+        }
+        return retriever_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/RunOperation.java b/src/main/java/rife/bld/operations/RunOperation.java
new file mode 100644
index 0000000..e185a6b
--- /dev/null
+++ b/src/main/java/rife/bld/operations/RunOperation.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.tools.FileUtils;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Runs a Java application.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class RunOperation extends AbstractProcessOperation<RunOperation> {
+    protected final List<String> runOptions_ = new ArrayList<>();
+
+    /**
+     * Part of the {@link #execute} operation, constructs the command list
+     * to use for building the process.
+     *
+     * @since 1.5
+     */
+    protected List<String> executeConstructProcessCommandList() {
+        var args = new ArrayList<String>();
+        args.add(javaTool());
+        args.addAll(javaOptions());
+        if (!classpath().isEmpty()) {
+            args.add("-cp");
+            args.add(FileUtils.joinPaths(classpath()));
+        }
+        args.add(mainClass());
+        args.addAll(runOptions());
+        return args;
+    }
+
+    /**
+     * Configures a run operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the run operation from
+     * @since 1.5
+     */
+    public RunOperation fromProject(BaseProject project) {
+        var operation = workDirectory(project.workDirectory())
+            .javaTool(project.javaTool())
+            .classpath(project.runClasspath())
+            .mainClass(project.mainClass());
+        if (project.usesRife2Agent()) {
+            operation.javaOptions().javaAgent(project.getRife2AgentFile());
+        }
+        return operation;
+    }
+
+    /**
+     * Provides options for the run operation
+     *
+     * @param options run options
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public RunOperation runOptions(String... options) {
+        runOptions_.addAll(List.of(options));
+        return this;
+    }
+
+    /**
+     * Provides options for the run operation
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param options run options
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public RunOperation runOptions(List<String> options) {
+        runOptions_.addAll(options);
+        return this;
+    }
+
+    /**
+     * Retrieves the run options
+     *
+     * @return the run options
+     * @since 1.5.18
+     */
+    public List<String> runOptions() {
+        return runOptions_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/TemplateType.java b/src/main/java/rife/bld/operations/TemplateType.java
new file mode 100644
index 0000000..8f37e7d
--- /dev/null
+++ b/src/main/java/rife/bld/operations/TemplateType.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import java.io.Serial;
+import java.io.Serializable;
+
+/**
+ * Allows template types to be specified for pre-compilation.
+ */
+public class TemplateType implements Serializable {
+    @Serial private static final long serialVersionUID = -2736320275307140837L;
+
+    /**
+     * The {@code html} template type.
+     */
+    public static TemplateType HTML = new TemplateType("html");
+    /**
+     * The {@code json} template type.
+     */
+    public static TemplateType JSON = new TemplateType("json");
+    /**
+     * The {@code svg} template type.
+     */
+    public static TemplateType SVG = new TemplateType("svg");
+    /**
+     * The {@code xml} template type.
+     */
+    public static TemplateType XML = new TemplateType("xml");
+    /**
+     * The {@code txt} template type.
+     */
+    public static TemplateType TXT = new TemplateType("txt");
+    /**
+     * The {@code sql} template type.
+     */
+    public static TemplateType SQL = new TemplateType("sql");
+
+    private final String identifier_;
+
+    /**
+     * Creates a new template type instance.
+     *
+     * @param identifier the identifier of this template type
+     */
+    public TemplateType(String identifier) {
+        identifier_ = identifier;
+    }
+
+    /**
+     * Retrieves the identifier for this template type
+     * @return the template type identifier as a string
+     */
+    public String identifier() {
+        return identifier_;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/TestOperation.java b/src/main/java/rife/bld/operations/TestOperation.java
new file mode 100644
index 0000000..3002253
--- /dev/null
+++ b/src/main/java/rife/bld/operations/TestOperation.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.Project;
+import rife.tools.FileUtils;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Tests a Java application.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class TestOperation<T extends TestOperation<T, O>, O extends List<String>> extends AbstractProcessOperation<T> {
+    protected final O testToolOptions_;
+
+    /**
+     * Instantiates a new test operation.
+     * @since 1.5.20
+     */
+    public TestOperation() {
+        testToolOptions_ = createTestToolOptions();
+    }
+
+    /**
+     * Creates a new collection of test tool options.
+     *
+     * @return the test tool options to use
+     * @since 1.5.20
+     */
+    protected O createTestToolOptions() {
+        return (O)new ArrayList<String>();
+    }
+
+    /**
+     * Part of the {@link #execute} operation, constructs the command list
+     * to use for building the process.
+     *
+     * @since 1.5
+     */
+    protected List<String> executeConstructProcessCommandList() {
+        if (mainClass() == null) {
+            throw new IllegalArgumentException("ERROR: Missing main class for test execution.");
+        }
+
+        var args = new ArrayList<String>();
+        args.add(javaTool());
+        args.addAll(javaOptions());
+        args.add("-cp");
+        args.add(FileUtils.joinPaths(classpath()));
+        args.add(mainClass());
+        args.addAll(testToolOptions());
+
+        return args;
+    }
+
+    /**
+     * Configures a test operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the test operation from
+     * @since 1.5
+     */
+    public T fromProject(BaseProject project) {
+        var operation = workDirectory(project.workDirectory())
+            .javaTool(project.javaTool())
+            .classpath(project.testClasspath());
+        if (project.usesRife2Agent()) {
+            operation.javaOptions().javaAgent(project.getRife2AgentFile());
+        }
+        return operation;
+    }
+
+    /**
+     * Provides options to provide to the test tool.
+     *
+     * @param options test tool options
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public T testToolOptions(String... options) {
+        testToolOptions_.addAll(List.of(options));
+        return (T)this;
+    }
+
+    /**
+     * Provides options to provide to the test tool.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param options test tool options
+     * @return this operation instance
+     * @since 1.5
+     */
+    public T testToolOptions(List<String> options) {
+        testToolOptions_.addAll(options);
+        return (T)this;
+    }
+
+    /**
+     * Retrieves the options for the test tool.
+     *
+     * @return the test tool's options
+     * @since 1.5
+     */
+    public O testToolOptions() {
+        return (O)testToolOptions_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/UberJarOperation.java b/src/main/java/rife/bld/operations/UberJarOperation.java
new file mode 100644
index 0000000..02b04d1
--- /dev/null
+++ b/src/main/java/rife/bld/operations/UberJarOperation.java
@@ -0,0 +1,268 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.NamedFile;
+import rife.bld.Project;
+import rife.tools.FileUtils;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.util.*;
+import java.util.jar.Attributes;
+import java.util.regex.Pattern;
+
+/**
+ * Creates an uberjar archive of the provided jars and resources.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class UberJarOperation extends AbstractOperation<UberJarOperation> {
+    private final List<File> jarSourceFiles_ = new ArrayList<>();
+    private final List<NamedFile> sourceDirectories_ = new ArrayList<>();
+    private File destinationDirectory_;
+    private String destinationFileName_;
+    private String mainClass_;
+
+    /**
+     * Performs the uberjar operation.
+     *
+     * @throws IOException when an exception occurred during the uberjar creation process
+     * @throws FileUtilsErrorException when an exception occurred during the uberjar creation process
+     * @since 1.5
+     */
+    public void execute()
+    throws IOException, FileUtilsErrorException {
+        var tmp_dir = Files.createTempDirectory("uberjar").toFile();
+        try {
+            executeCollectSourceJarContents(tmp_dir);
+            executeCollectSourceResources(tmp_dir);
+            executeCreateUberJarArchive(tmp_dir);
+
+            if (!silent()) {
+                System.out.println("The uberjar archive was created at '" + new File(destinationDirectory(), destinationFileName()) + "'");
+            }
+        } finally {
+            FileUtils.deleteDirectory(tmp_dir);
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, collect the contents of all the source jars.
+     *
+     * @since 1.5
+     */
+    protected void executeCollectSourceJarContents(File stagingDirectory)
+    throws FileUtilsErrorException {
+        for (var jar : jarSourceFiles()) {
+            FileUtils.unzipFile(jar, stagingDirectory);
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, collect the source resources.
+     *
+     * @since 1.5
+     */
+    protected void executeCollectSourceResources(File stagingDirectory)
+    throws FileUtilsErrorException {
+        for (var named_file : sourceDirectories()) {
+            if (named_file.file().exists()) {
+                var destination_file = new File(stagingDirectory, named_file.name());
+                destination_file.mkdirs();
+                FileUtils.copyDirectory(named_file.file(), destination_file);
+            }
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, create the uberjar archive.
+     *
+     * @since 1.5
+     */
+    protected void executeCreateUberJarArchive(File stagingDirectory)
+    throws IOException {
+        var existing_manifest = new File(new File(stagingDirectory, "META-INF"), "MANIFEST.MF");
+        existing_manifest.delete();
+
+        new JarOperation()
+            .manifestAttributes(Map.of(
+                Attributes.Name.MANIFEST_VERSION, "1.0",
+                Attributes.Name.MAIN_CLASS, mainClass()))
+            .sourceDirectories(stagingDirectory)
+            .destinationDirectory(destinationDirectory())
+            .destinationFileName(destinationFileName())
+            .excluded(List.of(Pattern.compile("(?:(?:^.*[/\\\\])|^)\\.DS_Store$")))
+            .silent(true)
+            .execute();
+    }
+
+    /**
+     * Configures an uberjar operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the uberjar operation from
+     * @since 1.5
+     */
+    public UberJarOperation fromProject(BaseProject project) {
+        var jars = new ArrayList<>(project.compileClasspathJars());
+        jars.addAll(project.runtimeClasspathJars());
+        jars.add(new File(project.buildDistDirectory(), project.jarFileName()));
+
+        return jarSourceFiles(jars)
+            .destinationDirectory(project.buildDistDirectory())
+            .destinationFileName(project.uberJarFileName())
+            .mainClass(project.uberJarMainClass());
+    }
+
+    /**
+     * Provides source jar files that will be used for the uberjar archive creation.
+     *
+     * @param files source files
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public UberJarOperation jarSourceFiles(File... files) {
+        jarSourceFiles_.addAll(List.of(files));
+        return this;
+    }
+
+    /**
+     * Provides a list of source jar files that will be used for the uberjar archive creation.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param files a list of jar source files
+     * @return this operation instance
+     * @since 1.5
+     */
+    public UberJarOperation jarSourceFiles(List<File> files) {
+        jarSourceFiles_.addAll(files);
+        return this;
+    }
+
+    /**
+     * Provides source directories that will be used for the uberjar archive creation.
+     *
+     * @param directories source directories
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public UberJarOperation sourceDirectories(NamedFile... directories) {
+        sourceDirectories_.addAll(List.of(directories));
+        return this;
+    }
+
+    /**
+     * Provides a list of source directories that will be used for the uberjar archive creation.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param directories a list of source directories
+     * @return this operation instance
+     * @since 1.5
+     */
+    public UberJarOperation sourceDirectories(List<NamedFile> directories) {
+        sourceDirectories_.addAll(directories);
+        return this;
+    }
+
+    /**
+     * Provides the destination directory in which the uberjar archive will be created.
+     *
+     * @param directory the uberjar destination directory
+     * @return this operation instance
+     * @since 1.5
+     */
+    public UberJarOperation destinationDirectory(File directory) {
+        destinationDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides the destination file name that will be used for the uberjar archive creation.
+     *
+     * @param name the uberjar archive destination file name
+     * @return this operation instance
+     * @since 1.5
+     */
+    public UberJarOperation destinationFileName(String name) {
+        destinationFileName_ = name;
+        return this;
+    }
+
+    /**
+     * Provides the main class to run from the uberjar archive.
+     *
+     * @param name the main class to run
+     * @return this operation instance
+     * @since 1.5
+     */
+    public UberJarOperation mainClass(String name) {
+        mainClass_ = name;
+        return this;
+    }
+
+    /**
+     * Retrieves the list of jar source files that will be used for the
+     * uberjar archive creation.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the uberjar archive's jar source files
+     * @since 1.5
+     */
+    public List<File> jarSourceFiles() {
+        return jarSourceFiles_;
+    }
+
+    /**
+     * Retrieves the list of source directories that will be used for the
+     * uberjar archive creation.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the uberjar archive's source directories
+     * @since 1.5
+     */
+    public List<NamedFile> sourceDirectories() {
+        return sourceDirectories_;
+    }
+
+    /**
+     * Retrieves the destination directory in which the uberjar archive will
+     * be created.
+     *
+     * @return the uberjar archive's destination directory
+     * @since 1.5
+     */
+    public File destinationDirectory() {
+        return destinationDirectory_;
+    }
+
+    /**
+     * Retrieves the destination file name that will be used for the uberjar
+     * archive creation.
+     *
+     * @return the uberjar archive's destination file name
+     * @since 1.5
+     */
+    public String destinationFileName() {
+        return destinationFileName_;
+    }
+
+    /**
+     * Retrieves the main class to run from the uberjar archive.
+     *
+     * @return the main class to run
+     * @since 1.5
+     */
+    public String mainClass() {
+        return mainClass_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/UpdatesOperation.java b/src/main/java/rife/bld/operations/UpdatesOperation.java
new file mode 100644
index 0000000..16395df
--- /dev/null
+++ b/src/main/java/rife/bld/operations/UpdatesOperation.java
@@ -0,0 +1,170 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.BaseProject;
+import rife.bld.Project;
+import rife.bld.dependencies.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Determines which updates are available for provides dependencies.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class UpdatesOperation extends AbstractOperation<UpdatesOperation> {
+    private ArtifactRetriever retriever_ = null;
+    private final List<Repository> repositories_ = new ArrayList<>();
+    private final DependencyScopes dependencies_ = new DependencyScopes();
+    private DependencyScopes updates_ = new DependencyScopes();
+
+    /**
+     * Performs the updates operation.
+     *
+     * @since 1.5
+     */
+    public void execute() {
+        var result = new DependencyScopes();
+        for (var entry : dependencies_.entrySet()) {
+            var scope = entry.getKey();
+            for (var dependency : entry.getValue()) {
+                var latest = new DependencyResolver(artifactRetriever(), repositories(), dependency).latestVersion();
+                if (latest.compareTo(dependency.version()) > 0) {
+                    var latest_dependency = new Dependency(dependency.groupId(), dependency.artifactId(), latest,
+                        dependency.classifier(), dependency.type());
+                    result.scope(scope).include(latest_dependency);
+                }
+            }
+        }
+
+        if (result.isEmpty()) {
+            if (!silent()) {
+                System.out.println("No dependency updates found.");
+            }
+        } else {
+            System.out.println("The following dependency updates were found.");
+            for (var entry : result.entrySet()) {
+                var scope = entry.getKey();
+                System.out.println(scope + ":");
+                for (var dependency : entry.getValue()) {
+                    System.out.println("    " + dependency);
+                }
+            }
+        }
+        updates_ = result;
+    }
+
+    /**
+     * Configures an updates operation from a {@link BaseProject}.
+     *
+     * @param project the project to configure the updates operation from
+     * @since 1.5
+     */
+    public UpdatesOperation fromProject(BaseProject project) {
+        return artifactRetriever(project.artifactRetriever())
+            .repositories(project.repositories())
+            .dependencies(project.dependencies());
+    }
+
+    /**
+     * Provides repositories to resolve the dependencies against.
+     *
+     * @param repositories repositories against which dependencies will be resolved
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public UpdatesOperation repositories(Repository... repositories) {
+        repositories_.addAll(List.of(repositories));
+        return this;
+    }
+
+    /**
+     * Provides a list of repositories to resolve the dependencies against.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param repositories a list of repositories against which dependencies will be resolved
+     * @return this operation instance
+     * @since 1.5
+     */
+    public UpdatesOperation repositories(List<Repository> repositories) {
+        repositories_.addAll(repositories);
+        return this;
+    }
+
+    /**
+     * Provides scoped dependencies that will be checked for updates.
+     *
+     * @param dependencies the dependencies that will be checked for updates
+     * @return this operation instance
+     * @since 1.5
+     */
+    public UpdatesOperation dependencies(DependencyScopes dependencies) {
+        dependencies_.include(dependencies);
+        return this;
+    }
+
+    /**
+     * Provides the artifact retriever to use.
+     *
+     * @param retriever the artifact retriever
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public UpdatesOperation artifactRetriever(ArtifactRetriever retriever) {
+        retriever_ = retriever;
+        return this;
+    }
+
+    /**
+     * Retrieves the repositories in which the dependencies will be resolved.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the repositories used for dependency resolution
+     * @since 1.5
+     */
+    public List<Repository> repositories() {
+        return repositories_;
+    }
+
+    /**
+     * Retrieves the scoped dependencies that will be checked for updates.
+     * <p>
+     * This is a modifiable structure that can be retrieved and changed.
+     *
+     * @return the scoped dependencies
+     * @since 1.5
+     */
+    public DependencyScopes dependencies() {
+        return dependencies_;
+    }
+
+    /**
+     * Retrieves the scoped dependencies with updates found after execution.
+     *
+     * @return the scoped dependencies with updates
+     * @since 1.5
+     */
+    public DependencyScopes updates() {
+        return updates_;
+    }
+
+    /**
+     * Returns the artifact retriever that is used.
+     *
+     * @return the artifact retriever
+     * @since 1.5.18
+     */
+    public ArtifactRetriever artifactRetriever() {
+        if (retriever_ == null) {
+            return ArtifactRetriever.instance();
+        }
+        return retriever_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/UpgradeOperation.java b/src/main/java/rife/bld/operations/UpgradeOperation.java
new file mode 100644
index 0000000..a38ecaa
--- /dev/null
+++ b/src/main/java/rife/bld/operations/UpgradeOperation.java
@@ -0,0 +1,33 @@
+package rife.bld.operations;
+
+import rife.bld.BldVersion;
+import rife.bld.wrapper.Wrapper;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Path;
+
+/**
+ * Upgrades the project's bld wrapper to the version of the running
+ * RIFE2 framework.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class UpgradeOperation extends AbstractOperation<UpgradeOperation> {
+    /**
+     * Performs the upgrade operation.
+     *
+     * @throws IOException when an error occurred during the upgrade operation
+     * @since 1.5
+     */
+    public void execute()
+    throws IOException {
+        new Wrapper().createWrapperFiles(Path.of("lib", "bld").toFile(), BldVersion.getVersion());
+        new Wrapper().upgradeIdeaBldLibrary(new File(".idea"), BldVersion.getVersion());
+        new Wrapper().upgradeVscodeSettings(new File(".vscode"), BldVersion.getVersion());
+        if (!silent()) {
+            System.out.println("The wrapper was successfully upgraded to " + BldVersion.getVersion() + ".");
+        }
+    }
+}
diff --git a/src/main/java/rife/bld/operations/VersionOperation.java b/src/main/java/rife/bld/operations/VersionOperation.java
new file mode 100644
index 0000000..1195a30
--- /dev/null
+++ b/src/main/java/rife/bld/operations/VersionOperation.java
@@ -0,0 +1,26 @@
+package rife.bld.operations;
+
+
+import rife.bld.BldVersion;
+
+import java.io.IOException;
+
+/**
+ * Outputs the version of the build system.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.2
+ */
+public class VersionOperation extends AbstractOperation<VersionOperation> {
+    /**
+     * Performs the version operation.
+     *
+     * @throws IOException when an error occurred during the upgrade operation
+     * @since 1.5.2
+     */
+    public void execute() {
+        if (!silent()) {
+            System.out.println("bld " + BldVersion.getVersion());
+        }
+    }
+}
diff --git a/src/main/java/rife/bld/operations/WarOperation.java b/src/main/java/rife/bld/operations/WarOperation.java
new file mode 100644
index 0000000..98356e8
--- /dev/null
+++ b/src/main/java/rife/bld/operations/WarOperation.java
@@ -0,0 +1,377 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import rife.bld.*;
+import rife.tools.FileUtils;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Pattern;
+
+/**
+ * Creates a war archive.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class WarOperation extends AbstractOperation<WarOperation> {
+    private final List<File> libSourceDirectories_ = new ArrayList<>();
+    private final List<File> classesSourceDirectories_ = new ArrayList<>();
+    private final List<NamedFile> jarSourceFiles_ = new ArrayList<>();
+    private File webappDirectory_;
+    private File webXmlFile_;
+    private File destinationDirectory_;
+    private String destinationFileName_;
+
+    /**
+     * Performs the war operation.
+     *
+     * @throws IOException             when an exception occurred during the war creation process
+     * @throws FileUtilsErrorException when an exception occurred war the uberjar creation process
+     * @since 1.5
+     */
+    public void execute()
+    throws IOException, FileUtilsErrorException {
+        var tmp_dir = Files.createTempDirectory("war").toFile();
+
+        try {
+            var web_inf_dir = executeCreateWebInfDirectory(tmp_dir);
+            executeCopyWebappDirectory(tmp_dir);
+            executeCopyWebInfLibJars(web_inf_dir);
+            executeCopyWebInfClassesFiles(web_inf_dir);
+            executeCopyWebXmlFile(web_inf_dir);
+
+            executeCreateWarArchive(tmp_dir);
+
+            if (!silent()) {
+                System.out.println("The war archive was created at '" + new File(destinationDirectory(), destinationFileName()) + "'");
+            }
+        } finally {
+            FileUtils.deleteDirectory(tmp_dir);
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, create the staging {@code WEB-INF} directory.
+     *
+     * @since 1.5
+     */
+    protected File executeCreateWebInfDirectory(File stagingDirectory) {
+        var web_inf_dir = new File(stagingDirectory, "WEB-INF");
+        web_inf_dir.mkdirs();
+        return web_inf_dir;
+    }
+
+    /**
+     * Part of the {@link #execute} operation, create the staging webapp directory.
+     *
+     * @since 1.5
+     */
+    protected void executeCopyWebappDirectory(File stagingDirectory)
+    throws FileUtilsErrorException {
+        if (webappDirectory() != null) {
+            FileUtils.copyDirectory(webappDirectory(), stagingDirectory);
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, copy the staging {@code WEB-INF} jars.
+     *
+     * @since 1.5
+     */
+    protected void executeCopyWebInfLibJars(File stagingWebInfDirectory)
+    throws FileUtilsErrorException {
+        var web_inf_lib_dir = new File(stagingWebInfDirectory, "lib");
+        if (!libSourceDirectories().isEmpty()) {
+            web_inf_lib_dir.mkdirs();
+            for (var dir : libSourceDirectories()) {
+                FileUtils.copyDirectory(dir, web_inf_lib_dir);
+            }
+        }
+
+        if (!jarSourceFiles().isEmpty()) {
+            web_inf_lib_dir.mkdirs();
+            for (var file : jarSourceFiles()) {
+                FileUtils.copy(file.file(), new File(web_inf_lib_dir, file.name()));
+            }
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, copy the staging {@code WEB-INF} classes.
+     *
+     * @since 1.5
+     */
+    protected void executeCopyWebInfClassesFiles(File stagingWebInfDirectory)
+    throws FileUtilsErrorException {
+        var web_inf_classes_dir = new File(stagingWebInfDirectory, "classes");
+        if (!classesSourceDirectories().isEmpty()) {
+            web_inf_classes_dir.mkdirs();
+            for (var dir : classesSourceDirectories()) {
+                FileUtils.copyDirectory(dir, web_inf_classes_dir);
+            }
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, copy the staging {@code web.xml} file.
+     *
+     * @since 1.5
+     */
+    protected void executeCopyWebXmlFile(File stagingWebInfDirectory)
+    throws FileUtilsErrorException {
+        if (webXmlFile() != null) {
+            FileUtils.copy(webXmlFile(), new File(stagingWebInfDirectory, "web.xml"));
+        }
+    }
+
+    /**
+     * Part of the {@link #execute} operation, create the war archive from the staging directory.
+     *
+     * @since 1.5
+     */
+    protected void executeCreateWarArchive(File stagingDirectory)
+    throws IOException {
+        new JarOperation()
+            .sourceDirectories(stagingDirectory)
+            .destinationDirectory(destinationDirectory())
+            .destinationFileName(destinationFileName())
+            .excluded(Pattern.compile("(?:(?:^.*[/\\\\])|^)\\.DS_Store$"))
+            .silent(true)
+            .execute();
+    }
+
+    /**
+     * Configures a war operation from a {@link Project}.
+     *
+     * @param project the project to configure the war operation from
+     * @since 1.5
+     */
+    public WarOperation fromProject(WebProject project) {
+        var jar_source_files = new ArrayList<NamedFile>();
+        jar_source_files.add(new NamedFile(project.jarFileName(), new File(project.buildDistDirectory(), project.jarFileName())));
+
+        var class_path_jars = new ArrayList<File>();
+        class_path_jars.addAll(project.compileClasspathJars());
+        class_path_jars.addAll(project.runtimeClasspathJars());
+        for (var jar_file : class_path_jars) {
+            jar_source_files.add(new NamedFile(jar_file.getName(), jar_file));
+        }
+
+        return jarSourceFiles(jar_source_files)
+            .webappDirectory(project.srcMainWebappDirectory())
+            .destinationDirectory(project.buildDistDirectory())
+            .destinationFileName(project.warFileName());
+    }
+
+    /**
+     * Provides lib source directories that will be used for the war archive creation.
+     *
+     * @param directories lib source directories
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public WarOperation libSourceDirectories(File... directories) {
+        libSourceDirectories_.addAll(List.of(directories));
+        return this;
+    }
+
+    /**
+     * Provides a list of lib source directories that will be used for the war archive creation.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param directories a list of lib source directories
+     * @return this operation instance
+     * @since 1.5
+     */
+    public WarOperation libSourceDirectories(List<File> directories) {
+        libSourceDirectories_.addAll(directories);
+        return this;
+    }
+
+    /**
+     * Provides classes source directories that will be used for the war archive creation.
+     *
+     * @param directories classes source directories
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public WarOperation classesSourceDirectories(File... directories) {
+        classesSourceDirectories_.addAll(List.of(directories));
+        return this;
+    }
+
+    /**
+     * Provides a list of classes source directories that will be used for the war archive creation.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param directories a list of classes source directories
+     * @return this operation instance
+     * @since 1.5
+     */
+    public WarOperation classesSourceDirectories(List<File> directories) {
+        classesSourceDirectories_.addAll(directories);
+        return this;
+    }
+
+    /**
+     * Provides jar files that will be included in the war archive creation.
+     *
+     * @param files jar source directories
+     * @return this operation instance
+     * @since 1.5.18
+     */
+    public WarOperation jarSourceFiles(NamedFile... files) {
+        jarSourceFiles_.addAll(List.of(files));
+        return this;
+    }
+
+    /**
+     * Provides a list of jar files that will be included in the war archive creation.
+     * <p>
+     * A copy will be created to allow this list to be independently modifiable.
+     *
+     * @param files a list of jar source directories
+     * @return this operation instance
+     * @since 1.5
+     */
+    public WarOperation jarSourceFiles(List<NamedFile> files) {
+        jarSourceFiles_.addAll(files);
+        return this;
+    }
+
+    /**
+     * Provides web application directory that will provide resources for the war archive creation.
+     *
+     * @param directory the webapp directory
+     * @return this operation instance
+     * @since 1.5
+     */
+    public WarOperation webappDirectory(File directory) {
+        webappDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides web.xml file that will be used for the war archive creation.
+     *
+     * @param file the web.xml file
+     * @return this operation instance
+     * @since 1.5
+     */
+    public WarOperation webXmlFile(File file) {
+        webXmlFile_ = file;
+        return this;
+    }
+
+    /**
+     * Provides the destination directory in which the war archive will be created.
+     *
+     * @param directory the war destination directory
+     * @return this operation instance
+     * @since 1.5
+     */
+    public WarOperation destinationDirectory(File directory) {
+        destinationDirectory_ = directory;
+        return this;
+    }
+
+    /**
+     * Provides the destination file name that will be used for the war archive creation.
+     *
+     * @param name the war archive destination file name
+     * @return this operation instance
+     * @since 1.5
+     */
+    public WarOperation destinationFileName(String name) {
+        destinationFileName_ = name;
+        return this;
+    }
+
+    /**
+     * Retrieves the lib source directories that will be used for the war archive creation.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the lib source directories
+     * @since 1.5
+     */
+    public List<File> libSourceDirectories() {
+        return libSourceDirectories_;
+    }
+
+    /**
+     * Retrieves the classes source directories that will be used for the war archive creation.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the classes source directories
+     * @since 1.5
+     */
+    public List<File> classesSourceDirectories() {
+        return classesSourceDirectories_;
+    }
+
+    /**
+     * Retrieves jar files that will be included in the war archive creation.
+     * <p>
+     * This is a modifiable list that can be retrieved and changed.
+     *
+     * @return the jar source directories
+     * @since 1.5
+     */
+    public List<NamedFile> jarSourceFiles() {
+        return jarSourceFiles_;
+    }
+
+    /**
+     * Retrieves web application directory that will provide resources for the war archive creation.
+     *
+     * @return the webapp directory
+     * @since 1.5
+     */
+    public File webappDirectory() {
+        return webappDirectory_;
+    }
+
+    /**
+     * Retrieves web.xml file that will be used for the war archive creation.
+     *
+     * @return the web.xml file
+     * @since 1.5
+     */
+    public File webXmlFile() {
+        return webXmlFile_;
+    }
+
+    /**
+     * Retrieves the destination directory in which the war archive will
+     * be created.
+     *
+     * @return the war archive's destination directory
+     * @since 1.5
+     */
+    public File destinationDirectory() {
+        return destinationDirectory_;
+    }
+
+    /**
+     * Retrieves the destination file name that will be used for the war
+     * archive creation.
+     *
+     * @return the war archive's destination file name
+     * @since 1.5
+     */
+    public String destinationFileName() {
+        return destinationFileName_;
+    }
+}
diff --git a/src/main/java/rife/bld/operations/exceptions/ExitStatusException.java b/src/main/java/rife/bld/operations/exceptions/ExitStatusException.java
new file mode 100644
index 0000000..71eea2b
--- /dev/null
+++ b/src/main/java/rife/bld/operations/exceptions/ExitStatusException.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations.exceptions;
+
+import java.io.Serial;
+
+/**
+ * When thrown, indicates that the exit status has changed due
+ * to the operation execution.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class ExitStatusException extends Exception {
+    public static final int EXIT_SUCCESS = 0;
+    public static final int EXIT_FAILURE = 1;
+
+    @Serial private static final long serialVersionUID = 5474282790384325513L;
+
+    private final int exitStatus_;
+
+    public ExitStatusException(int exitStatus) {
+        exitStatus_ = exitStatus;
+    }
+
+    public int getExitStatus() {
+        return exitStatus_;
+    }
+
+    /**
+     * Throws an {@code ExitStatusException} when the status is a failure.
+     *
+     * @param status the status to check
+     * @throws ExitStatusException when the provided status is different from {@code EXIT_SUCCESS}
+     * @since 1.5.7
+     */
+    public static void throwOnFailure(int status)
+    throws ExitStatusException {
+        if (status != EXIT_SUCCESS) {
+            throw new ExitStatusException(status);
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/exceptions/OperationOptionException.java b/src/main/java/rife/bld/operations/exceptions/OperationOptionException.java
new file mode 100644
index 0000000..f250c45
--- /dev/null
+++ b/src/main/java/rife/bld/operations/exceptions/OperationOptionException.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations.exceptions;
+
+import java.io.Serial;
+
+/**
+ * When thrown, indicates that wrong options were provided to the operation.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class OperationOptionException extends RuntimeException {
+    @Serial private static final long serialVersionUID = 5577728010329494164L;
+
+    public OperationOptionException(String message) {
+        super(message);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/exceptions/SignException.java b/src/main/java/rife/bld/operations/exceptions/SignException.java
new file mode 100644
index 0000000..1140b61
--- /dev/null
+++ b/src/main/java/rife/bld/operations/exceptions/SignException.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations.exceptions;
+
+import rife.tools.HttpUtils;
+
+import java.io.File;
+import java.io.Serial;
+
+/**
+ * When thrown, indicates that something went wrong during signing
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.19
+ */
+public class SignException extends RuntimeException {
+    @Serial private static final long serialVersionUID = -7352738410475855871L;
+
+    private final File file_;
+    private final String reason_;
+
+    public SignException(File file, String reason) {
+        super("An error occurred while signing '" + file + "':\n" + reason);
+        file_ = file;
+        reason_ = reason;
+    }
+
+    public File getFile() {
+        return file_;
+    }
+
+    public String getReason() {
+        return reason_;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/exceptions/UploadException.java b/src/main/java/rife/bld/operations/exceptions/UploadException.java
new file mode 100644
index 0000000..cad0381
--- /dev/null
+++ b/src/main/java/rife/bld/operations/exceptions/UploadException.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations.exceptions;
+
+import rife.tools.HttpUtils;
+
+import java.io.Serial;
+
+/**
+ * When thrown, indicates that something went wrong during upload
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.7
+ */
+public class UploadException extends RuntimeException {
+    @Serial private static final long serialVersionUID = 8815214756135684019L;
+
+    private final String url_;
+
+    public UploadException(String url, int status) {
+        super("An error occurred while uploading to '" + url + "'\nHTTP status code " + status + " : " + HttpUtils.statusReason(status));
+        url_ = url;
+    }
+
+    public UploadException(String url, Throwable cause) {
+        super("An error occurred while uploading to '" + url + "'", cause);
+        url_ = url;
+    }
+
+    public String getUrl() {
+        return url_;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/exceptions/package-info.java b/src/main/java/rife/bld/operations/exceptions/package-info.java
new file mode 100644
index 0000000..633b81d
--- /dev/null
+++ b/src/main/java/rife/bld/operations/exceptions/package-info.java
@@ -0,0 +1,10 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+
+/**
+ * Provides exception classes for the build system operations.
+ * @since 1.5
+ */
+package rife.bld.operations.exceptions;
\ No newline at end of file
diff --git a/src/main/java/rife/bld/operations/package-info.java b/src/main/java/rife/bld/operations/package-info.java
new file mode 100644
index 0000000..7e86a24
--- /dev/null
+++ b/src/main/java/rife/bld/operations/package-info.java
@@ -0,0 +1,10 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+
+/**
+ * Provides operations for the build system.
+ * @since 1.5
+ */
+package rife.bld.operations;
\ No newline at end of file
diff --git a/src/main/java/rife/bld/package-info.java b/src/main/java/rife/bld/package-info.java
new file mode 100644
index 0000000..6cc84d0
--- /dev/null
+++ b/src/main/java/rife/bld/package-info.java
@@ -0,0 +1,10 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+
+/**
+ * Provides classes and interfaces for the build system.
+ * @since 1.5
+ */
+package rife.bld;
\ No newline at end of file
diff --git a/src/main/java/rife/bld/publish/MetadataBuilder.java b/src/main/java/rife/bld/publish/MetadataBuilder.java
new file mode 100644
index 0000000..31c77df
--- /dev/null
+++ b/src/main/java/rife/bld/publish/MetadataBuilder.java
@@ -0,0 +1,254 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.publish;
+
+import rife.bld.dependencies.VersionNumber;
+import rife.template.TemplateFactory;
+import rife.tools.StringUtils;
+
+import java.time.*;
+import java.time.format.DateTimeFormatter;
+import java.util.*;
+
+/**
+ * Provides the functionalities to build a Maven metadata xml file.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.7
+ */
+public class MetadataBuilder {
+    public static final DateTimeFormatter TIMESTAMP_FORMATTER = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
+    public static final DateTimeFormatter SNAPSHOT_TIMESTAMP_FORMATTER = DateTimeFormatter.ofPattern("yyyyMMdd.HHmmss");
+
+    private PublishInfo info_ = null;
+    private ZonedDateTime timestamp_ = null;
+    private final Set<VersionNumber> otherVersions_ = new HashSet<>();
+    private ZonedDateTime snapshotTimestamp_ = null;
+    private Integer snapshotBuildNumber_ = null;
+    private boolean snapshotLocal_ = false;
+    private final List<SnapshotVersion> snapshotVersions_ = new ArrayList<>();
+
+    /**
+     * Provides the publishing info to build the metadata for.
+     *
+     * @param info the publishing info to use
+     * @return this {@code MetadataBuilder} instance
+     * @since 1.5.7
+     */
+    public MetadataBuilder info(PublishInfo info) {
+        info_ = info;
+        return this;
+    }
+
+    /**
+     * Retrieves the publishing info to build the metadata for.
+     *
+     * @return the publishing info
+     * @since 1.5.7
+     */
+    public PublishInfo info() {
+        return info_;
+    }
+
+    /**
+     * Provides the updated timestamp for the metadata.
+     *
+     * @param timestamp the publishing updated timestamp
+     * @return this {@code MetadataBuilder} instance
+     * @since 1.5.7
+     */
+    public MetadataBuilder updated(ZonedDateTime timestamp) {
+        timestamp_ = timestamp;
+        return this;
+    }
+
+    /**
+     * Retrieves the updated timestamp for the metadata.
+     *
+     * @return the publishing updated timestamp
+     * @since 1.5.7
+     */
+    public ZonedDateTime updated() {
+        return timestamp_;
+    }
+
+    /**
+     * Provides the other versions for the metadata.
+     *
+     * @param otherVersions the other versions to include
+     * @return this {@code MetadataBuilder} instance
+     * @since 1.5.8
+     */
+    public MetadataBuilder otherVersions(Collection<VersionNumber> otherVersions) {
+        otherVersions_.addAll(otherVersions);
+        return this;
+    }
+
+    /**
+     * Retrieves the other versions for the metadata.
+     * <p>
+     * This is a modifiable set that can be retrieved and changed.
+     *
+     * @return the other versions
+     * @since 1.5.8
+     */
+    public Set<VersionNumber> otherVersions() {
+        return otherVersions_;
+    }
+
+    /**
+     * Provides the snapshot details for this metadata, this will switch it to
+     * snapshot formatting, which is different from main artifact metadata.
+     *
+     * @param timestamp   the snapshot timestamp
+     * @param buildNumber the snapshot build number
+     * @return this {@code MetadataBuilder} instance
+     * @since 1.5.8
+     */
+    public MetadataBuilder snapshot(ZonedDateTime timestamp, Integer buildNumber) {
+        snapshotTimestamp_ = timestamp;
+        snapshotBuildNumber_ = buildNumber;
+        snapshotLocal_ = false;
+        return this;
+    }
+
+    /**
+     * Retrieves the snapshot timestamp.
+     *
+     * @return the snapshot timestamp; or
+     * {@code null} if this is not snapshot metadata
+     * @since 1.5.8
+     */
+    public ZonedDateTime snapshotTimestamp() {
+        return snapshotTimestamp_;
+    }
+
+    /**
+     * Retrieves the snapshot build number.
+     *
+     * @return the snapshot build number; or
+     * {@code null} if this is not snapshot metadata
+     * @since 1.5.8
+     */
+    public Integer snapshotBuildNumber() {
+        return snapshotBuildNumber_;
+    }
+
+    /**
+     * Indicates this is local snapshot metadata, this will switch it to
+     * snapshot formatting, which is different from main artifact metadata.
+     *
+     * @return this {@code MetadataBuilder} instance
+     * @since 1.5.8
+     */
+    public MetadataBuilder snapshotLocal() {
+        snapshotTimestamp_ = null;
+        snapshotBuildNumber_ = null;
+        snapshotLocal_ = true;
+        return this;
+    }
+
+    /**
+     * Indicates whether this is a local snapshot.
+     *
+     * @return {@code true} if this is a local snapshot; or
+     * {@code false} otherwise
+     * @since 1.5.10
+     */
+    public boolean isSnapshotLocal() {
+        return snapshotLocal_;
+    }
+
+    /**
+     * Provides the snapshot versions for the metadata.
+     *
+     * @param snapshotVersions the snapshot versions to include
+     * @return this {@code MetadataBuilder} instance
+     * @since 1.5.8
+     */
+    public MetadataBuilder snapshotVersions(Collection<SnapshotVersion> snapshotVersions) {
+        snapshotVersions_.addAll(snapshotVersions);
+        return this;
+    }
+
+    /**
+     * Retrieves the snapshot versions for the metadata.
+     * <p>
+     * This is a modifiable set that can be retrieved and changed.
+     *
+     * @return the snapshot versions
+     * @since 1.5.8
+     */
+    public Collection<SnapshotVersion> snapshotVersions() {
+        return snapshotVersions_;
+    }
+
+    /**
+     * Builds the Maven metadata xml file.
+     *
+     * @return the generated Maven metadata xml file as a string
+     * @since 1.5.7
+     */
+    public String build() {
+        var t = TemplateFactory.XML.get("bld.maven_metadata_blueprint");
+
+        var info = info();
+        if (info != null) {
+            t.setValueEncoded("groupId", Objects.requireNonNullElse(info.groupId(), ""));
+            t.setValueEncoded("artifactId", Objects.requireNonNullElse(info.artifactId(), ""));
+        }
+        if (snapshotLocal_ || (snapshotTimestamp() != null && snapshotBuildNumber() != null)) {
+            t.setValueEncoded("mainVersion", Objects.requireNonNullElse(info.version(), ""));
+            t.setBlock("mainVersion-tag");
+
+            if (snapshotLocal_) {
+                t.setBlock("snapshot-tag", "snapshot-local-tag");
+            } else {
+                t.setValueEncoded("snapshot-timestamp", SNAPSHOT_TIMESTAMP_FORMATTER.format(snapshotTimestamp().withZoneSameInstant(ZoneId.of("UTC"))));
+                t.setValueEncoded("snapshot-buildNumber", snapshotBuildNumber());
+                t.setBlock("snapshot-tag");
+            }
+
+            if (!snapshotVersions().isEmpty()) {
+                for (var snapshot_version : snapshotVersions()) {
+                    if (snapshot_version.classifier().isEmpty()) {
+                        t.blankValue("snapshotVersionClassifier-tag");
+                    } else {
+                        t.setValueEncoded("snapshotVersion-classifier", snapshot_version.classifier());
+                        t.setBlock("snapshotVersionClassifier-tag");
+                    }
+                    t.setValueEncoded("snapshotVersion-extension", Objects.requireNonNullElse(snapshot_version.extension(), ""));
+                    t.setValueEncoded("snapshotVersion-value", Objects.requireNonNullElse(snapshot_version.value(), ""));
+                    t.setValueEncoded("snapshotVersion-updated", Objects.requireNonNullElse(TIMESTAMP_FORMATTER.format(snapshot_version.updated().withZoneSameInstant(ZoneId.of("UTC"))), ""));
+
+                    t.appendBlock("snapshotVersions", "snapshotVersion");
+                }
+                t.setBlock("snapshotVersions-tag");
+            }
+        } else {
+            var versions = new TreeSet<>(otherVersions());
+            if (info != null && info.version() != null) {
+                t.setValueEncoded("latestVersion", Objects.requireNonNullElse(info.version(), ""));
+                t.setValueEncoded("releaseVersion", Objects.requireNonNullElse(info.version(), ""));
+                t.setBlock("versionLatest-tag");
+
+                versions.add(info.version());
+            }
+            for (var version : versions) {
+                t.setValueEncoded("version", version);
+                t.appendBlock("versions", "version");
+            }
+            if (t.isValueSet("versions")) {
+                t.setBlock("versions-tag");
+            }
+        }
+        if (updated() != null) {
+            t.setValueEncoded("lastUpdated", Objects.requireNonNullElse(TIMESTAMP_FORMATTER.format(updated().withZoneSameInstant(ZoneId.of("UTC"))), ""));
+            t.setBlock("lastUpdated-tag");
+        }
+
+        return StringUtils.stripBlankLines(t.getContent());
+    }
+}
diff --git a/src/main/java/rife/bld/publish/PomBuilder.java b/src/main/java/rife/bld/publish/PomBuilder.java
new file mode 100644
index 0000000..03908c4
--- /dev/null
+++ b/src/main/java/rife/bld/publish/PomBuilder.java
@@ -0,0 +1,168 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.publish;
+
+import rife.bld.dependencies.*;
+import rife.template.Template;
+import rife.template.TemplateFactory;
+import rife.tools.StringUtils;
+
+import java.util.Objects;
+
+/**
+ * Provides the functionalities to build a Maven POM xml file.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.7
+ */
+public class PomBuilder {
+    private PublishInfo info_ = null;
+    private DependencyScopes dependencies_ = new DependencyScopes();
+
+    /**
+     * Provides the publishing info to build the POM for.
+     *
+     * @param info the publishing info to use
+     * @return this {@code PomBuilder} instance
+     * @since 1.5.7
+     */
+    public PomBuilder info(PublishInfo info) {
+        info_ = info;
+        return this;
+    }
+
+    /**
+     * Retrieves the publishing info to build the POM for.
+     *
+     * @return the publishing info
+     * @since 1.5.7
+     */
+    public PublishInfo info() {
+        return info_;
+    }
+
+    /**
+     * Provides the dependencies to build the POM for.
+     *
+     * @param dependencies the dependencies to use
+     * @return this {@code PomBuilder} instance
+     * @since 1.5.7
+     */
+    public PomBuilder dependencies(DependencyScopes dependencies) {
+        dependencies_ = dependencies;
+        return this;
+    }
+
+    /**
+     * Retrieves the dependencies to build the POM for.
+     *
+     * @return the dependencies to use
+     * @since 1.5.7
+     */
+    public DependencyScopes dependencies() {
+        return dependencies_;
+    }
+
+    /**
+     * Builds the Maven POM xml file.
+     *
+     * @return the generated Maven POM xml file as a string
+     * @since 1.5.7
+     */
+    public String build() {
+        var t = TemplateFactory.XML.get("bld.pom_blueprint");
+
+        var info = info();
+        if (info != null) {
+            t.setValueEncoded("groupId", Objects.requireNonNullElse(info.groupId(), ""));
+            t.setValueEncoded("artifactId", Objects.requireNonNullElse(info.artifactId(), ""));
+            t.setValueEncoded("version", Objects.requireNonNullElse(info.version(), ""));
+            t.setValueEncoded("name", Objects.requireNonNullElse(info.name(), ""));
+            t.setValueEncoded("description", Objects.requireNonNullElse(info.description(), ""));
+            t.setValueEncoded("url", Objects.requireNonNullElse(info.url(), ""));
+
+            if (!info.licenses().isEmpty()) {
+                for (var license : info.licenses()) {
+                    t.setValueEncoded("license-name", Objects.requireNonNullElse(license.name(), ""));
+                    t.setValueEncoded("license-url", Objects.requireNonNullElse(license.url(), ""));
+                    t.appendBlock("licenses", "license");
+                }
+                t.setBlock("licenses-tag");
+            }
+
+            if (!info.developers().isEmpty()) {
+                for (var developer : info.developers()) {
+                    t.setValueEncoded("developer-id", Objects.requireNonNullElse(developer.id(), ""));
+                    t.setValueEncoded("developer-name", Objects.requireNonNullElse(developer.name(), ""));
+                    t.setValueEncoded("developer-email", Objects.requireNonNullElse(developer.email(), ""));
+                    t.setValueEncoded("developer-url", Objects.requireNonNullElse(developer.url(), ""));
+                    t.appendBlock("developers", "developer");
+                }
+                t.setBlock("developers-tag");
+            }
+
+            if (info.scm() != null) {
+                var scm = info.scm();
+                t.setValueEncoded("scm-connection", Objects.requireNonNullElse(scm.connection(), ""));
+                t.setValueEncoded("scm-developerConnection", Objects.requireNonNullElse(scm.developerConnection(), ""));
+                t.setValueEncoded("scm-url", Objects.requireNonNullElse(scm.url(), ""));
+                t.setBlock("scm-tag");
+            }
+        }
+
+        if (dependencies() != null && !dependencies().isEmpty()) {
+            addDependencies(t, Scope.compile);
+            addDependencies(t, Scope.runtime);
+            t.setBlock("dependencies-tag");
+        }
+
+        return StringUtils.stripBlankLines(t.getContent());
+    }
+
+    private void addDependencies(Template t, Scope scope) {
+        var scoped_dependencies = dependencies().scope(scope);
+        if (!scoped_dependencies.isEmpty()) {
+            for (var dependency : scoped_dependencies) {
+                t.setValueEncoded("dependency-groupId", dependency.groupId());
+                t.setValueEncoded("dependency-artifactId", dependency.artifactId());
+
+                t.blankValue("dependency-version");
+                t.blankValue("dependency-version-tag");
+                if (!dependency.version().equals(VersionNumber.UNKNOWN)) {
+                    t.setValueEncoded("dependency-version", dependency.version());
+                    t.setBlock("dependency-version-tag");
+                }
+
+                t.blankValue("dependency-type");
+                t.blankValue("dependency-type-tag");
+                if (!dependency.type().equals("jar")) {
+                    t.setValueEncoded("dependency-type", dependency.type());
+                    t.setBlock("dependency-type-tag");
+                }
+
+                t.blankValue("dependency-classifier");
+                t.blankValue("dependency-classifier-tag");
+                if (!dependency.classifier().isBlank()) {
+                    t.setValueEncoded("dependency-classifier", dependency.classifier());
+                    t.setBlock("dependency-classifier-tag");
+                }
+
+                t.setValueEncoded("dependency-scope", scope);
+                t.blankValue("dependency-exclusions");
+                t.blankValue("dependency-exclusions-tag");
+                if (!dependency.exclusions().isEmpty()) {
+                    for (var exclusion : dependency.exclusions()) {
+                        t.setValueEncoded("exclusion-groupId", exclusion.groupId());
+                        t.setValueEncoded("exclusion-artifactId", exclusion.artifactId());
+                        t.appendBlock("dependency-exclusions", "dependency-exclusion");
+                    }
+                    t.setBlock("dependency-exclusions-tag");
+                }
+
+                t.appendBlock("dependencies", "dependency");
+            }
+        }
+    }
+}
diff --git a/src/main/java/rife/bld/publish/PublishArtifact.java b/src/main/java/rife/bld/publish/PublishArtifact.java
new file mode 100644
index 0000000..4f70148
--- /dev/null
+++ b/src/main/java/rife/bld/publish/PublishArtifact.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.publish;
+
+import java.io.File;
+
+/**
+ * Contains the information about an artifact that will be published.
+ *
+ * @param file       the file that will be published
+ * @param classifier the classifier of the artifact
+ * @param type       the type of the artifact
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.8
+ */
+public record PublishArtifact(File file, String classifier, String type) {
+    public PublishArtifact(File file, String classifier, String type) {
+        this.file = file;
+        this.classifier = (classifier == null ? "" : classifier);
+        this.type = (type == null ? "jar" : type);
+    }
+}
diff --git a/src/main/java/rife/bld/publish/PublishDeveloper.java b/src/main/java/rife/bld/publish/PublishDeveloper.java
new file mode 100644
index 0000000..ac020ed
--- /dev/null
+++ b/src/main/java/rife/bld/publish/PublishDeveloper.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.publish;
+
+/**
+ * Describes a developer in {@link PublishInfo}.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.7
+ */
+public class PublishDeveloper {
+    private String id_;
+    private String name_;
+    private String email_;
+    private String url_;
+
+    /**
+     * Provides the developer's ID.
+     *
+     * @param id the developer's ID
+     * @return this {@code PublishDeveloper} instance
+     * @since 1.5.7
+     */
+    public PublishDeveloper id(String id) {
+        id_ = id;
+        return this;
+    }
+
+    /**
+     * Retrieves the developer's ID.
+     *
+     * @return the developer's ID
+     * @since 1.5.7
+     */
+    public String id() {
+        return id_;
+    }
+
+    /**
+     * Provides the developer's name.
+     *
+     * @param name the developer's name
+     * @return this {@code PublishDeveloper} instance
+     * @since 1.5.7
+     */
+    public PublishDeveloper name(String name) {
+        name_ = name;
+        return this;
+    }
+
+    /**
+     * Retrieves the developer's name.
+     *
+     * @return the developer's name
+     * @since 1.5.7
+     */
+    public String name() {
+        return name_;
+    }
+
+    /**
+     * Provides the developer's email.
+     *
+     * @param email the developer's email
+     * @return this {@code PublishDeveloper} instance
+     * @since 1.5.7
+     */
+    public PublishDeveloper email(String email) {
+        email_ = email;
+        return this;
+    }
+
+    /**
+     * Retrieves the developer's email.
+     *
+     * @return the developer's email
+     * @since 1.5.7
+     */
+    public String email() {
+        return email_;
+    }
+
+    /**
+     * Provides the developer's URL.
+     *
+     * @param url the developer's URL
+     * @return this {@code PublishDeveloper} instance
+     * @since 1.5.7
+     */
+    public PublishDeveloper url(String url) {
+        url_ = url;
+        return this;
+    }
+
+    /**
+     * Retrieves the developer's URL.
+     *
+     * @return the developer's URL
+     * @since 1.5.7
+     */
+    public String url() {
+        return url_;
+    }
+}
diff --git a/src/main/java/rife/bld/publish/PublishInfo.java b/src/main/java/rife/bld/publish/PublishInfo.java
new file mode 100644
index 0000000..e2d8c64
--- /dev/null
+++ b/src/main/java/rife/bld/publish/PublishInfo.java
@@ -0,0 +1,329 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.publish;
+
+import rife.bld.dependencies.VersionNumber;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Provides the information to perform a publish operation.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.7
+ */
+public class PublishInfo {
+    private String groupId_ = null;
+    private String artifactId_ = null;
+    private VersionNumber version_ = null;
+    private String name_ = null;
+    private String description_ = null;
+    private String url_ = null;
+    private String signGpgPath_ = null;
+    private String signKey_ = null;
+    private String signPassphrase_ = null;
+
+    private final List<PublishLicense> licenses_ = new ArrayList<>();
+    private final List<PublishDeveloper> developers_ = new ArrayList<>();
+    private PublishScm scm_ = null;
+
+    /**
+     * Provides the project's group ID.
+     *
+     * @param groupId the project's group ID.
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.7
+     */
+    public PublishInfo groupId(String groupId) {
+        groupId_ = groupId;
+        return this;
+    }
+
+    /**
+     * Retrieves the project's group ID.
+     *
+     * @return the project's group ID.
+     * @since 1.5.7
+     */
+    public String groupId() {
+        return groupId_;
+    }
+
+    /**
+     * Provides the project's artifact ID.
+     *
+     * @param artifactId the project's artifact ID.
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.7
+     */
+    public PublishInfo artifactId(String artifactId) {
+        artifactId_ = artifactId;
+        return this;
+    }
+
+    /**
+     * Retrieves the project's artifact ID.
+     *
+     * @return the project's artifact ID.
+     * @since 1.5.7
+     */
+    public String artifactId() {
+        return artifactId_;
+    }
+
+    /**
+     * Provides the project's version.
+     *
+     * @param version the project's version.
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.7
+     */
+    public PublishInfo version(VersionNumber version) {
+        version_ = version;
+        return this;
+    }
+
+    /**
+     * Retrieves the project's version.
+     *
+     * @return the project's version.
+     * @since 1.5.7
+     */
+    public VersionNumber version() {
+        return version_;
+    }
+
+    /**
+     * Provides the project's name.
+     *
+     * @param name the project's name.
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.7
+     */
+    public PublishInfo name(String name) {
+        name_ = name;
+        return this;
+    }
+
+    /**
+     * Retrieves the project's name.
+     *
+     * @return the project's name.
+     * @since 1.5.7
+     */
+    public String name() {
+        return name_;
+    }
+
+    /**
+     * Provides the project's description.
+     *
+     * @param description the project's description.
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.7
+     */
+    public PublishInfo description(String description) {
+        description_ = description;
+        return this;
+    }
+
+    /**
+     * Retrieves the project's description.
+     *
+     * @return the project's description.
+     * @since 1.5.7
+     */
+    public String description() {
+        return description_;
+    }
+
+    /**
+     * Provides the project's URL.
+     *
+     * @param url the project's URL.
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.7
+     */
+    public PublishInfo url(String url) {
+        url_ = url;
+        return this;
+    }
+
+    /**
+     * Retrieves the project's URL.
+     *
+     * @return the project's URL.
+     * @since 1.5.7
+     */
+    public String url() {
+        return url_;
+    }
+
+    /**
+     * Provides the custompath to the {@code gpg} executable used for signing.
+     * <p>
+     * By default, {@code gpg} will be used.
+     *
+     * @param path the {@code gpg} executable path
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.8
+     */
+    public PublishInfo signGpgPath(String path) {
+        signGpgPath_ = path;
+        return this;
+    }
+
+    /**
+     * Retrieves the custom path of the {@code gpg} executable.
+     *
+     * @return the custom path of the {@code gpg} executable; or
+     * {@code null} if no custom path was set
+     * @since 1.5.8
+     */
+    public String signGpgPath() {
+        return signGpgPath_;
+    }
+
+    /**
+     * Provides the sign key used to create a signature for each published artifact.
+     * <p>
+     * When the sign key is provided, signing will activate.
+     * When the sign key is not set, publishing will proceed without signed artifacts.
+     *
+     * @param key the sign key
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.8
+     */
+    public PublishInfo signKey(String key) {
+        signKey_ = key;
+        return this;
+    }
+
+    /**
+     * Retrieves the sign key.
+     *
+     * @return the sign key; or
+     * {@code null} if no sign key was provided
+     * @since 1.5.8
+     */
+    public String signKey() {
+        return signKey_;
+    }
+
+    /**
+     * Provides the passphrase used to create a signature for each published artifact.
+     * <p>
+     * If a GPG agent is running locally, the passphrase might not be necessary.
+     *
+     * @param passphrase the passphrase used for signing
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.8
+     */
+    public PublishInfo signPassphrase(String passphrase) {
+        signPassphrase_ = passphrase;
+        return this;
+    }
+
+    /**
+     * Retrieves the passphrase used to create a signature for each published artifact.
+     * @return the passphrase; or
+     * {@code null} if no passphrase was provided
+     * @since 1.5.8
+     */
+    public String signPassphrase() {
+        return signPassphrase_;
+    }
+
+    /**
+     * Adds a project developer.
+     *
+     * @param developer a project developer.
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.7
+     */
+    public PublishInfo developer(PublishDeveloper developer) {
+        developers_.add(developer);
+        return this;
+    }
+
+    /**
+     * Provides project developer.
+     *
+     * @param developers project developers.
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.7
+     */
+    public PublishInfo developers(List<PublishDeveloper> developers) {
+        developers_.addAll(developers);
+        return this;
+    }
+
+    /**
+     * Retrieves the project's developers.
+     *
+     * @return the project's developers.
+     * @since 1.5.7
+     */
+    public List<PublishDeveloper> developers() {
+        return developers_;
+    }
+
+    /**
+     * Adds a project license.
+     *
+     * @param license a project license.
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.7
+     */
+    public PublishInfo license(PublishLicense license) {
+        licenses_.add(license);
+        return this;
+    }
+
+    /**
+     * Provides project licenses.
+     *
+     * @param licenses project licenses.
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.7
+     */
+    public PublishInfo licenses(List<PublishLicense> licenses) {
+        licenses_.addAll(licenses);
+        return this;
+    }
+
+    /**
+     * Retrieves the project's licenses.
+     *
+     * @return the project's licenses.
+     * @since 1.5.7
+     */
+    public List<PublishLicense> licenses() {
+        return licenses_;
+    }
+
+    /**
+     * Provides the project's SCM info.
+     *
+     * @param scm the project's SCM info.
+     * @return this {@code PublishInfo} instance
+     * @since 1.5.7
+     */
+    public PublishInfo scm(PublishScm scm) {
+        scm_ = scm;
+        return this;
+    }
+
+    /**
+     * Retrieves the project's SCM info.
+     *
+     * @return the project's SCM info.
+     * @since 1.5.7
+     */
+    public PublishScm scm() {
+        return scm_;
+    }
+}
diff --git a/src/main/java/rife/bld/publish/PublishLicense.java b/src/main/java/rife/bld/publish/PublishLicense.java
new file mode 100644
index 0000000..e690aa4
--- /dev/null
+++ b/src/main/java/rife/bld/publish/PublishLicense.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.publish;
+
+/**
+ * Describes a license in {@link PublishInfo}.
+ *
+ * @since 1.5.7
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ */
+public class PublishLicense {
+    private String name_;
+    private String url_;
+
+    /**
+     * Provides the license's name.
+     *
+     * @param name the license's name
+     * @return this {@code PublishDeveloper} instance
+     * @since 1.5.7
+     */
+    public PublishLicense name(String name) {
+        name_ = name;
+        return this;
+    }
+
+    /**
+     * Retrieves the license's name.
+     *
+     * @return the license's name
+     * @since 1.5.7
+     */
+    public String name() {
+        return name_;
+    }
+
+    /**
+     * Provides the license's URL.
+     *
+     * @param url the license's URL
+     * @return this {@code PublishDeveloper} instance
+     * @since 1.5.7
+     */
+    public PublishLicense url(String url) {
+        url_ = url;
+        return this;
+    }
+
+    /**
+     * Retrieves the license's URL.
+     *
+     * @return the license's URL
+     * @since 1.5.7
+     */
+    public String url() {
+        return url_;
+    }
+}
diff --git a/src/main/java/rife/bld/publish/PublishScm.java b/src/main/java/rife/bld/publish/PublishScm.java
new file mode 100644
index 0000000..e3e54c8
--- /dev/null
+++ b/src/main/java/rife/bld/publish/PublishScm.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.publish;
+
+/**
+ * Describes an SCM in {@link PublishInfo}.
+ *
+ * @since 1.5.7
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ */
+public class PublishScm {
+    private String connection_;
+    private String developerConnection_;
+    private String url_;
+
+    /**
+     * Provides the SCM's connection.
+     *
+     * @param connection the SCM's connection
+     * @return this {@code PublishScm} instance
+     * @since 1.5.7
+     */
+    public PublishScm connection(String connection) {
+        connection_ = connection;
+        return this;
+    }
+
+    /**
+     * Retrieves the SCM's connection.
+     *
+     * @return the SCM's connection
+     * @since 1.5.7
+     */
+    public String connection() {
+        return connection_;
+    }
+
+    /**
+     * Provides the SCM's developer connection.
+     *
+     * @param connection the SCM's developer connection
+     * @return this {@code PublishScm} instance
+     * @since 1.5.7
+     */
+    public PublishScm developerConnection(String connection) {
+        developerConnection_ = connection;
+        return this;
+    }
+
+    /**
+     * Retrieves the SCM's developer connection.
+     *
+     * @return the SCM's developer connection
+     * @since 1.5.7
+     */
+    public String developerConnection() {
+        return developerConnection_;
+    }
+
+    /**
+     * Provides the SCM's URL.
+     *
+     * @param url the SCM's URL
+     * @return this {@code PublishScm} instance
+     * @since 1.5.7
+     */
+    public PublishScm url(String url) {
+        url_ = url;
+        return this;
+    }
+
+    /**
+     * Retrieves the SCM's URL.
+     *
+     * @return the SCM's URL
+     * @since 1.5.7
+     */
+    public String url() {
+        return url_;
+    }
+}
diff --git a/src/main/java/rife/bld/publish/SnapshotVersion.java b/src/main/java/rife/bld/publish/SnapshotVersion.java
new file mode 100644
index 0000000..4ec2476
--- /dev/null
+++ b/src/main/java/rife/bld/publish/SnapshotVersion.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.publish;
+
+import java.time.ZonedDateTime;
+
+/**
+ * Contains the information to describe a particular artifact in a snapshot version.
+ *
+ * @param classifier the classifier of the artifact
+ * @param extension  the file extension of the artifact
+ * @param value      the version value
+ * @param updated    the timestamp of publication
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.8
+ */
+public record SnapshotVersion(String classifier, String extension, String value, ZonedDateTime updated) {
+    public SnapshotVersion(String classifier, String extension, String value, ZonedDateTime updated) {
+        this.classifier = (classifier == null ? "" : classifier);
+        this.extension = (extension == null ? "jar" : extension);
+        this.value = value;
+        this.updated = updated;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/publish/package-info.java b/src/main/java/rife/bld/publish/package-info.java
new file mode 100644
index 0000000..1be50d7
--- /dev/null
+++ b/src/main/java/rife/bld/publish/package-info.java
@@ -0,0 +1,10 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+
+/**
+ * Provides classes and interfaces for the publishing operation.
+ * @since 1.5.7
+ */
+package rife.bld.publish;
\ No newline at end of file
diff --git a/src/main/java/rife/bld/wrapper/Wrapper.java b/src/main/java/rife/bld/wrapper/Wrapper.java
new file mode 100644
index 0000000..5788970
--- /dev/null
+++ b/src/main/java/rife/bld/wrapper/Wrapper.java
@@ -0,0 +1,553 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.wrapper;
+
+import rife.tools.*;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import javax.tools.*;
+import java.io.*;
+import java.lang.reflect.InvocationTargetException;
+import java.net.URL;
+import java.nio.channels.Channels;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.*;
+import java.util.*;
+import java.util.jar.*;
+import java.util.regex.Pattern;
+
+import static rife.tools.FileUtils.JAR_FILE_PATTERN;
+import static rife.tools.FileUtils.JAVA_FILE_PATTERN;
+
+/**
+ * Wrapper implementation for the build system that ensures the RIFE2
+ * jar gets downloaded locally and that the classpath for running the
+ * build logic is properly setup.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5
+ */
+public class Wrapper {
+    static final String MAVEN_CENTRAL = "https://repo1.maven.org/maven2/";
+    static final String DOWNLOAD_LOCATION = MAVEN_CENTRAL + "com/uwyn/rife2/rife2/${version}/";
+    static final String RIFE2_FILENAME = "rife2-${version}.jar";
+    static final String RIFE2_SOURCES_FILENAME = "rife2-${version}-sources.jar";
+    static final String BLD_VERSION = "BLD_VERSION";
+    static final String BLD_BUILD_HASH = "bld-build.hash";
+    static final String WRAPPER_PREFIX = "bld-wrapper";
+    static final String WRAPPER_PROPERTIES = WRAPPER_PREFIX + ".properties";
+    static final String WRAPPER_JAR = WRAPPER_PREFIX + ".jar";
+    static final String PROPERTY_VERSION = "rife2.version";
+    static final String PROPERTY_DOWNLOAD_LOCATION = "rife2.downloadLocation";
+    static final String PROPERTY_REPOSITORIES = "bld.repositories";
+    static final String PROPERTY_EXTENSION_PREFIX = "bld.extension";
+    static final String PROPERTY_EXTENSIONS = "bld.extensions";
+    static final String PROPERTY_DOWNLOAD_EXTENSION_SOURCES = "bld.downloadExtensionSources";
+    static final String PROPERTY_DOWNLOAD_EXTENSION_JAVADOC = "bld.downloadExtensionJavadoc";
+    static final File RIFE2_USER_DIR = new File(System.getProperty("user.home"), ".rife2");
+    static final File DISTRIBUTIONS_DIR = new File(RIFE2_USER_DIR, "dist");
+
+    private File currentDir_ = new File(System.getProperty("user.dir"));
+
+    private final Properties wrapperProperties_ = new Properties();
+    private File wrapperPropertiesFile_ = null;
+    private final Set<String> repositories_ = new LinkedHashSet<>();
+    private final Set<String> extensions_ = new LinkedHashSet<>();
+    private boolean downloadExtensionSources_ = false;
+    private boolean downloadExtensionJavadoc_ = false;
+
+    private final byte[] buffer_ = new byte[1024];
+    private WrapperClassLoader classloader_;
+
+    /**
+     * Launches the wrapper.
+     *
+     * @param arguments the command line arguments to pass on to the build logic
+     * @since 1.5
+     */
+    public static void main(String[] arguments) {
+        System.exit(new Wrapper().installAndLaunch(new ArrayList<>(Arrays.asList(arguments))));
+    }
+
+    /**
+     * Creates the files required to use the wrapper.
+     *
+     * @param destinationDirectory the directory to put those files in
+     * @param version              the RIFE2 version they should be using
+     * @throws IOException when an error occurred during the creation of the wrapper files
+     * @since 1.5
+     */
+    public void createWrapperFiles(File destinationDirectory, String version)
+    throws IOException {
+        createWrapperProperties(destinationDirectory, version);
+        createWrapperJar(destinationDirectory);
+    }
+
+    private static final Pattern RIFE2_JAR_PATTERN = Pattern.compile("rife2-[^\"/!]+(?<!sources)\\.jar");
+    private static final Pattern RIFE2_SOURCES_JAR_PATTERN = Pattern.compile("rife2-[^\"/!]+-sources\\.jar");
+    private static final Pattern PROPERTY_VERSION_PATTERN = Pattern.compile(".*rife2\\.version.*");
+
+    /**
+     * Upgraded the IDEA bld files that were generated with a previous version.
+     *
+     * @param destinationDirectory the directory with the IDEA files
+     * @param version              the RIFE2 version they should be using
+     * @throws IOException when an error occurred during the upgrade of the IDEA files
+     * @since 1.5.2
+     */
+    public void upgradeIdeaBldLibrary(File destinationDirectory, String version)
+    throws IOException {
+        var file = new File(destinationDirectory, Path.of("libraries", "bld.xml").toString());
+        if (file.exists()) {
+            try {
+                var content = FileUtils.readString(file);
+                content = RIFE2_JAR_PATTERN.matcher(content).replaceAll("rife2-" + version + ".jar");
+                content = RIFE2_SOURCES_JAR_PATTERN.matcher(content).replaceAll("rife2-" + version + "-sources.jar");
+                FileUtils.writeString(content, file);
+            } catch (FileUtilsErrorException e) {
+                throw new IOException(e);
+            }
+        }
+    }
+
+    /**
+     * Upgraded the vscode settings files that were generated with a previous version.
+     *
+     * @param destinationDirectory the directory with the vscode files
+     * @param version              the RIFE2 version they should be using
+     * @throws IOException when an error occurred during the upgrade of the IDEA files
+     * @since 1.5.6
+     */
+    public void upgradeVscodeSettings(File destinationDirectory, String version)
+    throws IOException {
+        var file = new File(destinationDirectory, Path.of("settings.json").toString());
+        if (file.exists()) {
+            try {
+                var content = FileUtils.readString(file);
+                content = RIFE2_JAR_PATTERN.matcher(content).replaceAll("rife2-" + version + ".jar");
+                FileUtils.writeString(content, file);
+            } catch (FileUtilsErrorException e) {
+                throw new IOException(e);
+            }
+        }
+    }
+
+    private void createWrapperProperties(File destinationDirectory, String version)
+    throws IOException {
+        var file = new File(destinationDirectory, WRAPPER_PROPERTIES);
+        if (file.exists()) {
+            try {
+                var contents = FileUtils.readString(file);
+                contents = PROPERTY_VERSION_PATTERN.matcher(contents).replaceAll(PROPERTY_VERSION + "=" + version);
+                FileUtils.writeString(contents, file);
+            } catch (FileUtilsErrorException e) {
+                throw new IOException(e);
+            }
+        } else {
+            var properties_blueprint = """
+                bld.downloadExtensionJavadoc=false
+                bld.downloadExtensionSources=true
+                bld.extensions=
+                bld.repositories=MAVEN_CENTRAL,RIFE2
+                rife2.downloadLocation=
+                rife2.version=${version}
+                """
+                .replace("${version}", version);
+
+            Files.createDirectories(file.getAbsoluteFile().toPath().getParent());
+            Files.deleteIfExists(file.toPath());
+            try {
+                FileUtils.writeString(properties_blueprint, file);
+            } catch (FileUtilsErrorException e) {
+                throw new IOException(e);
+            }
+        }
+    }
+
+    private void createWrapperJar(File destinationDirectory)
+    throws IOException {
+        var manifest = new Manifest();
+        manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
+        manifest.getMainAttributes().put(Attributes.Name.MAIN_CLASS, getClass().getName());
+
+        try (var jar = new JarOutputStream(new FileOutputStream(new File(destinationDirectory, WRAPPER_JAR)), manifest)) {
+            addClassToJar(jar, Wrapper.class);
+            addClassToJar(jar, WrapperClassLoader.class);
+            addClassToJar(jar, FileUtils.class);
+            addClassToJar(jar, FileUtilsErrorException.class);
+            addClassToJar(jar, InnerClassException.class);
+            addFileToJar(jar, BLD_VERSION);
+            jar.flush();
+        }
+    }
+
+    private void addClassToJar(JarOutputStream jar, Class klass)
+    throws IOException {
+        addFileToJar(jar, klass.getName().replace('.', '/') + ".class");
+    }
+
+    private void addFileToJar(JarOutputStream jar, String name)
+    throws IOException {
+        var resource = getClass().getResource("/" + name);
+        if (resource == null) {
+            throw new IOException("Couldn't find resource '" + name + "'");
+        }
+
+        InputStream stream = null;
+        try {
+            var connection = resource.openConnection();
+            connection.setUseCaches(false);
+            stream = connection.getInputStream();
+            var entry = new JarEntry(name);
+            jar.putNextEntry(entry);
+
+            try (var in = new BufferedInputStream(stream)) {
+                int count;
+                while ((count = in.read(buffer_)) != -1) {
+                    jar.write(buffer_, 0, count);
+                }
+                jar.closeEntry();
+            }
+        } finally {
+            if (stream != null) {
+                try {
+                    stream.close();
+                } catch (IOException e) {
+                    // couldn't close stream since it probably already has been
+                    // closed after an exception
+                    // proceed without reporting an error message.
+                }
+            }
+        }
+    }
+
+    private String getVersion()
+    throws IOException {
+        try (InputStream in = getClass().getResource("/" + BLD_VERSION).openStream()) {
+            byte[] bytes = in.readAllBytes();
+            return new String(bytes, StandardCharsets.UTF_8);
+        }
+    }
+
+    private int installAndLaunch(List<String> arguments) {
+        if (!arguments.isEmpty()) {
+            File current_file = null;
+            try {
+                current_file = new File(arguments.remove(0)).getCanonicalFile();
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+            currentDir_ = new File(current_file.getParent());
+        }
+        try {
+            initWrapperProperties(getVersion());
+            File distribution;
+            try {
+                distribution = installDistribution();
+            } catch (IOException e) {
+                return -1;
+            }
+            return launchMain(distribution, arguments);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private File buildBldDirectory() {
+        return Path.of(currentDir_.getAbsolutePath(), "build", "bld").toFile();
+    }
+
+    private File srcBldJavaDirectory() {
+        return Path.of(currentDir_.getAbsolutePath(), "src", "bld", "java").toFile();
+    }
+
+    private File srcBldResourcesDirectory() {
+        return Path.of(currentDir_.getAbsolutePath(), "src", "bld", "resources").toFile();
+    }
+
+    private File libBldDirectory() {
+        return Path.of(currentDir_.getAbsolutePath(), "lib", "bld").toFile();
+    }
+
+    private File libDirectory(String path) {
+        return Path.of(currentDir_.getAbsolutePath(), "..", "lib", path).toFile();
+    }
+
+    private File libBldDirectory(String path) {
+        return Path.of(currentDir_.getAbsolutePath(), "lib", "bld", path).toFile();
+    }
+
+    private void initWrapperProperties(String version)
+    throws IOException {
+        // ensure required properties are available
+        wrapperProperties_.put(PROPERTY_REPOSITORIES, MAVEN_CENTRAL);
+        wrapperProperties_.put(PROPERTY_VERSION, version);
+        if (wrapperProperties_.getProperty(DOWNLOAD_LOCATION) == null) {
+            wrapperProperties_.put(PROPERTY_DOWNLOAD_LOCATION, DOWNLOAD_LOCATION);
+        }
+
+        // retrieve properties from possible locations
+        var config = libBldDirectory(WRAPPER_PROPERTIES);
+        if (config.exists()) {
+            wrapperPropertiesFile_ = config;
+            wrapperProperties_.load(new FileReader(config));
+        } else {
+            config = libDirectory(WRAPPER_PROPERTIES);
+            if (config.exists()) {
+                wrapperPropertiesFile_ = config;
+                wrapperProperties_.load(new FileReader(config));
+            }
+        }
+
+        // extract repositories
+        if (wrapperProperties_.containsKey(PROPERTY_REPOSITORIES)) {
+            for (var repository : wrapperProperties_.getProperty(PROPERTY_REPOSITORIES).split(",")) {
+                repository = repository.trim();
+                if (!repository.isBlank()) {
+                    repositories_.add(repository);
+                }
+            }
+        }
+        // extract wrapper extension specifications
+        for (var property : wrapperProperties_.entrySet()) {
+            if (property.getKey().toString().startsWith(PROPERTY_EXTENSION_PREFIX)) {
+                for (var extension : property.getValue().toString().split(",")) {
+                    extension = extension.trim();
+                    if (!extension.isBlank()) {
+                        extensions_.add(extension);
+                    }
+                }
+            }
+        }
+        // check whether extension sources or javadoc should be downloaded
+        downloadExtensionSources_ = Boolean.parseBoolean(wrapperProperties_.getProperty(PROPERTY_DOWNLOAD_EXTENSION_SOURCES, "false"));
+        downloadExtensionJavadoc_ = Boolean.parseBoolean(wrapperProperties_.getProperty(PROPERTY_DOWNLOAD_EXTENSION_JAVADOC, "false"));
+    }
+
+    private String getWrapperVersion()
+    throws IOException {
+        return wrapperProperties_.getProperty(PROPERTY_VERSION, getVersion());
+    }
+
+    private String getWrapperDownloadLocation() {
+        var location = wrapperProperties_.getProperty(PROPERTY_DOWNLOAD_LOCATION, DOWNLOAD_LOCATION);
+        if (location.trim().isBlank()) {
+            return DOWNLOAD_LOCATION;
+        }
+        return location;
+    }
+
+    private String downloadUrl(String version, String fileName) {
+        var location = replaceVersion(getWrapperDownloadLocation(), version);
+        var result = new StringBuilder(location);
+        if (!location.endsWith("/")) {
+            result.append("/");
+        }
+        result.append(fileName);
+        return result.toString();
+    }
+
+    private String rife2FileName(String version) {
+        return replaceVersion(RIFE2_FILENAME, version);
+    }
+
+    private String rife2SourcesFileName(String version) {
+        return replaceVersion(RIFE2_SOURCES_FILENAME, version);
+    }
+
+    private String replaceVersion(String text, String version) {
+        return text.replaceAll("\\$\\{version}", version);
+    }
+
+    private File installDistribution()
+    throws IOException {
+        try {
+            Files.createDirectories(DISTRIBUTIONS_DIR.toPath());
+        } catch (IOException e) {
+            System.err.println("Failed to create distribution directory " + DISTRIBUTIONS_DIR.getAbsolutePath() + ".");
+            throw e;
+        }
+
+        String version;
+        try {
+            version = getWrapperVersion();
+        } catch (IOException e) {
+            System.err.println("Failed to retrieve wrapper version number.");
+            throw e;
+        }
+        var filename = rife2FileName(version);
+        var distribution_file = new File(DISTRIBUTIONS_DIR, filename);
+        if (!distribution_file.exists()) {
+            downloadDistribution(distribution_file, downloadUrl(version, filename));
+        }
+        var sources_filename = rife2SourcesFileName(version);
+        var distribution_sources_file = new File(DISTRIBUTIONS_DIR, sources_filename);
+        if (!distribution_sources_file.exists()) {
+            try {
+                downloadDistribution(distribution_sources_file, downloadUrl(version, sources_filename));
+            } catch (IOException e) {
+                // this is not critical, ignore
+            }
+        }
+
+        // find the wrapper classloader in the hierarchy and add the RIFE2 jar to it
+        classloader_ = new WrapperClassLoader();
+        classloader_.add(distribution_file.toURI().toURL());
+
+        return distribution_file;
+    }
+
+    private void downloadDistribution(File file, String downloadUrl)
+    throws IOException {
+        try {
+            System.out.print("Downloading: " + downloadUrl + " ... ");
+            System.out.flush();
+            var url = new URL(downloadUrl);
+            var readableByteChannel = Channels.newChannel(url.openStream());
+            try (var fileOutputStream = new FileOutputStream(file)) {
+                var fileChannel = fileOutputStream.getChannel();
+                fileChannel.transferFrom(readableByteChannel, 0, Long.MAX_VALUE);
+
+                System.out.print("done");
+            }
+        } catch (FileNotFoundException e) {
+            System.err.println("not found");
+            System.err.println("Failed to download file " + file + ".");
+            throw e;
+        } catch (IOException e) {
+            System.err.println("error");
+            System.err.println("Failed to download file " + file + " due to I/O issue.");
+            Files.deleteIfExists(file.toPath());
+            throw e;
+        } finally {
+            System.out.println();
+        }
+    }
+
+    private void resolveExtensions() {
+        if (null == classloader_ ||
+            null == wrapperPropertiesFile_) {
+            return;
+        }
+
+        try {
+            var resolver_class = classloader_.loadClass("rife.bld.wrapper.WrapperExtensionResolver");
+            var constructor = resolver_class.getConstructor(File.class, File.class, File.class, Collection.class, Collection.class, boolean.class, boolean.class);
+            var update_method = resolver_class.getMethod("updateExtensions");
+            var resolver = constructor.newInstance(currentDir_, new File(wrapperPropertiesFile_.getAbsolutePath() + ".hash"), libBldDirectory(),
+                repositories_, extensions_,
+                downloadExtensionSources_, downloadExtensionJavadoc_);
+            update_method.invoke(resolver);
+        } catch (InvocationTargetException e) {
+            throw new RuntimeException(e.getCause());
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private int launchMain(File jarFile, List<String> arguments)
+    throws IOException, InterruptedException, FileUtilsErrorException {
+        if (arguments.isEmpty() || !arguments.get(0).equals("--build")) {
+            return launchMainCli(jarFile, arguments);
+        }
+        return launchMainBuild(jarFile, arguments);
+    }
+
+    private int launchMainCli(File jarFile, List<String> arguments)
+    throws IOException, InterruptedException {
+        var args = new ArrayList<String>();
+        args.add("java");
+        includeJvmParameters(arguments, args);
+
+        args.add("-cp");
+        args.add(jarFile.getAbsolutePath());
+
+        args.add("-jar");
+        args.add(jarFile.getAbsolutePath());
+
+        args.addAll(arguments);
+
+        var process_builder = new ProcessBuilder(args);
+        process_builder.inheritIO();
+        var process = process_builder.start();
+        return process.waitFor();
+    }
+
+    private int launchMainBuild(File jarFile, List<String> arguments)
+    throws FileUtilsErrorException, IOException, InterruptedException {
+        resolveExtensions();
+
+        arguments.remove(0);
+
+        var build_bld_dir = buildBldDirectory();
+        if (build_bld_dir.exists()) {
+            FileUtils.deleteDirectory(buildBldDirectory());
+        }
+        buildBldDirectory().mkdirs();
+
+        var bld_classpath = bldClasspathJars();
+        bld_classpath.add(jarFile);
+        bld_classpath.add(buildBldDirectory());
+        bld_classpath.add(srcBldResourcesDirectory());
+        var classpath = FileUtils.joinPaths(FileUtils.combineToAbsolutePaths(bld_classpath));
+
+        var compiler = ToolProvider.getSystemJavaCompiler();
+        try (var file_manager = compiler.getStandardFileManager(null, null, null)) {
+            var compilation_units = file_manager.getJavaFileObjectsFromFiles(bldSourceFiles());
+            var diagnostics = new DiagnosticCollector<JavaFileObject>();
+            var options = new ArrayList<>(List.of("-d", buildBldDirectory().getAbsolutePath(), "-cp", classpath));
+            var compilation_task = compiler.getTask(null, file_manager, diagnostics, options, null, compilation_units);
+            if (!compilation_task.call()) {
+                if (!diagnostics.getDiagnostics().isEmpty()) {
+                    for (var diagnostic : diagnostics.getDiagnostics()) {
+                        System.err.print(diagnostic.toString() + System.lineSeparator());
+                    }
+
+                    return 1;
+                }
+            }
+        }
+
+        var java_args = new ArrayList<String>();
+        java_args.add("java");
+        includeJvmParameters(arguments, java_args);
+        java_args.add("-cp");
+        java_args.add(classpath);
+        java_args.addAll(arguments);
+        var process_builder = new ProcessBuilder(java_args);
+        process_builder.directory(currentDir_);
+        process_builder.inheritIO();
+        var process = process_builder.start();
+
+        return process.waitFor();
+    }
+
+    private static void includeJvmParameters(List<String> arguments, List<String> javaArgs) {
+        var i = arguments.iterator();
+        while (i.hasNext()) {
+            var arg = i.next();
+            if (arg.matches("-D(.+?)=(.*)")) {
+                javaArgs.add(arg);
+                i.remove();
+            }
+        }
+    }
+
+    private List<File> bldClasspathJars() {
+        // detect the jar files in the compile lib directory
+        var dir_abs = libBldDirectory().getAbsoluteFile();
+        var jar_files = FileUtils.getFileList(dir_abs, JAR_FILE_PATTERN, Pattern.compile(WRAPPER_JAR));
+
+        // build the compilation classpath
+        return new ArrayList<>(jar_files.stream().map(file -> new File(dir_abs, file)).toList());
+    }
+
+    public List<File> bldSourceFiles() {
+        // get all the bld java sources
+        var src_main_java_dir_abs = srcBldJavaDirectory().getAbsoluteFile();
+        return FileUtils.getFileList(src_main_java_dir_abs, JAVA_FILE_PATTERN, null)
+            .stream().map(file -> new File(src_main_java_dir_abs, file)).toList();
+    }
+}
diff --git a/src/main/java/rife/bld/wrapper/WrapperClassLoader.java b/src/main/java/rife/bld/wrapper/WrapperClassLoader.java
new file mode 100644
index 0000000..8512716
--- /dev/null
+++ b/src/main/java/rife/bld/wrapper/WrapperClassLoader.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.wrapper;
+
+import java.net.URL;
+import java.net.URLClassLoader;
+
+final class WrapperClassLoader extends URLClassLoader {
+    static {
+        registerAsParallelCapable();
+    }
+
+    WrapperClassLoader(String name, ClassLoader parent) {
+        super(name, new URL[0], parent);
+    }
+
+    WrapperClassLoader(ClassLoader parent) {
+        this("classpath", parent);
+    }
+
+    WrapperClassLoader() {
+        this(Thread.currentThread().getContextClassLoader());
+    }
+
+    void add(URL url) {
+        addURL(url);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/rife/bld/wrapper/WrapperExtensionResolver.java b/src/main/java/rife/bld/wrapper/WrapperExtensionResolver.java
new file mode 100644
index 0000000..94d014c
--- /dev/null
+++ b/src/main/java/rife/bld/wrapper/WrapperExtensionResolver.java
@@ -0,0 +1,203 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.wrapper;
+
+import rife.bld.BuildExecutor;
+import rife.bld.dependencies.*;
+import rife.tools.FileUtils;
+import rife.tools.StringUtils;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import java.io.File;
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.*;
+
+import static rife.bld.dependencies.Dependency.CLASSIFIER_JAVADOC;
+import static rife.bld.dependencies.Dependency.CLASSIFIER_SOURCES;
+
+/**
+ * Resolves, downloads and purges the bld extension dependencies.
+ * <p>
+ * This is used by the bld wrapper and should not be called directly.
+ *
+ * @author Geert Bevin (gbevin[remove] at uwyn dot com)
+ * @since 1.5.8
+ */
+public class WrapperExtensionResolver {
+    private final ArtifactRetriever retriever_ = ArtifactRetriever.cachingInstance();
+    private final File hashFile_;
+    private final String fingerPrintHash_;
+    private final File destinationDirectory_;
+    private final List<Repository> repositories_ = new ArrayList<>();
+    private final DependencySet dependencies_ = new DependencySet();
+    private final List<File> localArtifacts_ = new ArrayList<>();
+    private final boolean downloadSources_;
+    private final boolean downloadJavadoc_;
+
+    private boolean headerPrinted_ = false;
+
+    public WrapperExtensionResolver(File currentDir, File hashFile, File destinationDirectory,
+                                    Collection<String> repositories, Collection<String> extensions,
+                                    boolean downloadSources, boolean downloadJavadoc) {
+        var properties = BuildExecutor.setupProperties(currentDir);
+        Repository.resolveMavenLocal(properties);
+
+        hashFile_ = hashFile;
+        destinationDirectory_ = destinationDirectory;
+        for (var repository : repositories) {
+            repositories_.add(Repository.resolveRepository(properties, repository));
+        }
+        dependencies_.addAll(extensions.stream().map(Dependency::parse).toList());
+        downloadSources_ = downloadSources;
+        downloadJavadoc_ = downloadJavadoc;
+        fingerPrintHash_ = createHash(repositories_.stream().map(Objects::toString).toList(), extensions, downloadSources, downloadJavadoc);
+    }
+
+    private String createHash(Collection<String> repositories, Collection<String> extensions, boolean downloadSources, boolean downloadJavadoc) {
+        try {
+            var fingerprint = String.join("\n", repositories) + "\n" + String.join("\n", extensions) + "\n" + downloadSources + "\n" + downloadJavadoc;
+            var digest = MessageDigest.getInstance("SHA-1");
+            digest.update(fingerprint.getBytes(StandardCharsets.UTF_8));
+            return StringUtils.encodeHexLower(digest.digest());
+        } catch (NoSuchAlgorithmException e) {
+            // should not happen
+            throw new RuntimeException(e);
+        }
+    }
+
+    public void updateExtensions() {
+        // verify and update the fingerprint hash file,
+        // don't update the extensions if the hash is identical
+        if (validateHash()) {
+            return;
+        }
+
+        // collect and download the extensions dependencies
+        var filenames = transferExtensionDependencies();
+
+        // purge the files that are not part of the latest extensions anymore
+        purgeExtensionDependencies(filenames);
+
+        writeHash();
+
+        if (headerPrinted_) {
+            System.out.println();
+        }
+    }
+
+    private boolean validateHash() {
+        try {
+            if (hashFile_.exists()) {
+                var contents = FileUtils.readString(hashFile_);
+                var lines = StringUtils.split(contents, "\n");
+                if (!lines.isEmpty()) {
+                    // first line is the fingerprint hash
+                    if (lines.remove(0).equals(fingerPrintHash_)) {
+                        // other lines are last modified timestamps of local files
+                        // that were dependency artifacts
+                        while (!lines.isEmpty()) {
+                            var line = lines.get(0);
+                            var parts = line.split(":", 2);
+                            // verify that the local file has the same modified timestamp still
+                            if (parts.length == 2) {
+                                var file = new File(parts[1]);
+                                if (!file.exists() || !file.canRead() || file.lastModified() != Long.parseLong(parts[0])) {
+                                    break;
+                                }
+                            } else {
+                                break;
+                            }
+                            lines.remove(0);
+                        }
+
+                        // there were no invalid lines, so the hash file contents are valid
+                        if (lines.isEmpty()) {
+                            return true;
+                        }
+                    }
+                }
+                hashFile_.delete();
+            }
+            return false;
+        } catch (FileUtilsErrorException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private void writeHash() {
+        try {
+            var contents = new StringBuilder();
+            contents.append(fingerPrintHash_);
+            for (var file : localArtifacts_) {
+                if (file.exists() && file.canRead()) {
+                    contents.append("\n").append(file.lastModified()).append(":").append(file.getAbsolutePath());
+                }
+            }
+
+            FileUtils.writeString(contents.toString(), hashFile_);
+        } catch (FileUtilsErrorException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private Set<String> transferExtensionDependencies() {
+        var filenames = new HashSet<String>();
+        var dependencies = new DependencySet();
+        for (var d : dependencies_) {
+            if (d != null) {
+                dependencies.addAll(new DependencyResolver(retriever_, repositories_, d).getAllDependencies(Scope.compile, Scope.runtime));
+            }
+        }
+        if (!dependencies.isEmpty()) {
+            ensurePrintedHeader();
+
+            dependencies.removeIf(dependency -> dependency.baseDependency().equals(new Dependency("com.uwyn.rife2", "rife2")));
+
+            var additional_classifiers = new String[0];
+            if (downloadSources_ || downloadJavadoc_) {
+                var classifiers = new ArrayList<String>();
+                if (downloadSources_) classifiers.add(CLASSIFIER_SOURCES);
+                if (downloadJavadoc_) classifiers.add(CLASSIFIER_JAVADOC);
+
+                additional_classifiers = classifiers.toArray(new String[0]);
+            }
+
+            var artifacts = dependencies.transferIntoDirectory(retriever_, repositories_, destinationDirectory_, additional_classifiers);
+            for (var artifact : artifacts) {
+                var location = artifact.location();
+
+                if (artifact.repository().isLocal()) {
+                    localArtifacts_.add(new File(location));
+                }
+                filenames.add(location.substring(location.lastIndexOf("/") + 1));
+            }
+        }
+
+        return filenames;
+    }
+
+    private void purgeExtensionDependencies(Set<String> filenames) {
+        for (var file : destinationDirectory_.listFiles()) {
+            if (file.getName().startsWith(Wrapper.WRAPPER_PREFIX) ||
+                file.getName().equals(Wrapper.BLD_BUILD_HASH)) {
+                continue;
+            }
+            if (!filenames.contains(file.getName())) {
+                ensurePrintedHeader();
+                System.out.println("Deleting : " + file.getName());
+                file.delete();
+            }
+        }
+    }
+
+    private void ensurePrintedHeader() {
+        if (!headerPrinted_) {
+            System.out.println("Updating bld extensions...");
+        }
+        headerPrinted_ = true;
+    }
+}
diff --git a/src/main/java/rife/bld/wrapper/package-info.java b/src/main/java/rife/bld/wrapper/package-info.java
new file mode 100644
index 0000000..6745169
--- /dev/null
+++ b/src/main/java/rife/bld/wrapper/package-info.java
@@ -0,0 +1,10 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+
+/**
+ * Provides classes and interfaces for the build system wrapper.
+ * @since 1.5
+ */
+package rife.bld.wrapper;
\ No newline at end of file
diff --git a/src/main/resources/BLD_VERSION b/src/main/resources/BLD_VERSION
new file mode 100644
index 0000000..79f69ac
--- /dev/null
+++ b/src/main/resources/BLD_VERSION
@@ -0,0 +1 @@
+1.7.0-SNAPSHOT
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/idea/app_iml.xml b/src/main/resources/templates/bld/base/idea/app_iml.xml
new file mode 100644
index 0000000..787b59b
--- /dev/null
+++ b/src/main/resources/templates/bld/base/idea/app_iml.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/build/main" />
+    <output-test url="file://$MODULE_DIR$/build/test" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
+      <excludeFolder url="file://$MODULE_DIR$/src/main/resources/templates" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module-library" scope="RUNTIME">
+      <library>
+        <CLASSES>
+          <root url="file://$MODULE_DIR$/src/main/resources/templates" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+    <orderEntry type="library" name="compile" level="project" />
+    <orderEntry type="library" scope="RUNTIME" name="runtime" level="project" />
+    <orderEntry type="library" scope="TEST" name="test" level="project" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/idea/bld_iml.xml b/src/main/resources/templates/bld/base/idea/bld_iml.xml
new file mode 100644
index 0000000..e63e11e
--- /dev/null
+++ b/src/main/resources/templates/bld/base/idea/bld_iml.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/build/bld" />
+    <output-test url="file://$MODULE_DIR$/build/bld" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$/src/bld">
+      <sourceFolder url="file://$MODULE_DIR$/src/bld/java" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="bld" level="project" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/idea/libraries/bld.xml b/src/main/resources/templates/bld/base/idea/libraries/bld.xml
new file mode 100644
index 0000000..8fe8c38
--- /dev/null
+++ b/src/main/resources/templates/bld/base/idea/libraries/bld.xml
@@ -0,0 +1,17 @@
+<component name="libraryTable">
+  <library name="bld">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/bld" />
+      <root url="jar://$USER_HOME$/.rife2/dist/rife2-{{v version/}}.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="jar://$USER_HOME$/.rife2/dist/rife2-{{v version/}}-sources.jar!/" />
+    </SOURCES>
+    <excluded>
+      <root url="jar://$PROJECT_DIR$/lib/bld/bld-wrapper.jar!/" />
+    </excluded>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/bld" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/bld" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/idea/libraries/compile.xml b/src/main/resources/templates/bld/base/idea/libraries/compile.xml
new file mode 100644
index 0000000..9bd86aa
--- /dev/null
+++ b/src/main/resources/templates/bld/base/idea/libraries/compile.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="compile">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/compile" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/compile" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/idea/libraries/runtime.xml b/src/main/resources/templates/bld/base/idea/libraries/runtime.xml
new file mode 100644
index 0000000..2ae5c4b
--- /dev/null
+++ b/src/main/resources/templates/bld/base/idea/libraries/runtime.xml
@@ -0,0 +1,14 @@
+<component name="libraryTable">
+  <library name="runtime">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/runtime" />
+      <root url="file://$PROJECT_DIR$/src/main/resources" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/runtime" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/idea/libraries/test.xml b/src/main/resources/templates/bld/base/idea/libraries/test.xml
new file mode 100644
index 0000000..b80486a
--- /dev/null
+++ b/src/main/resources/templates/bld/base/idea/libraries/test.xml
@@ -0,0 +1,14 @@
+<component name="libraryTable">
+  <library name="test">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/test" />
+      <root url="file://$PROJECT_DIR$/src/test/resources" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/test" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/idea/misc.xml b/src/main/resources/templates/bld/base/idea/misc.xml
new file mode 100644
index 0000000..11f86d2
--- /dev/null
+++ b/src/main/resources/templates/bld/base/idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/idea/modules.xml b/src/main/resources/templates/bld/base/idea/modules.xml
new file mode 100644
index 0000000..55adcb9
--- /dev/null
+++ b/src/main/resources/templates/bld/base/idea/modules.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/app.iml" filepath="$PROJECT_DIR$/.idea/app.iml" />
+      <module fileurl="file://$PROJECT_DIR$/.idea/bld.iml" filepath="$PROJECT_DIR$/.idea/bld.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/idea/runConfigurations/Run_Main.xml b/src/main/resources/templates/bld/base/idea/runConfigurations/Run_Main.xml
new file mode 100644
index 0000000..2a5c07c
--- /dev/null
+++ b/src/main/resources/templates/bld/base/idea/runConfigurations/Run_Main.xml
@@ -0,0 +1,9 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Run Main" type="Application" factoryName="Application" nameIsGenerated="true">
+    <option name="MAIN_CLASS_NAME" value="{{v package/}}.{{v projectMain/}}" />
+    <module name="app" />
+    <method v="2">
+      <option name="Make" enabled="true" />
+    </method>
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/idea/runConfigurations/Run_Tests.xml b/src/main/resources/templates/bld/base/idea/runConfigurations/Run_Tests.xml
new file mode 100644
index 0000000..58611e1
--- /dev/null
+++ b/src/main/resources/templates/bld/base/idea/runConfigurations/Run_Tests.xml
@@ -0,0 +1,9 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Run Tests" type="Application" factoryName="Application" nameIsGenerated="true">
+    <option name="MAIN_CLASS_NAME" value="{{v package/}}.{{v projectTest/}}" />
+    <module name="app" />
+    <method v="2">
+      <option name="Make" enabled="true" />
+    </method>
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/project_build.txt b/src/main/resources/templates/bld/base/project_build.txt
new file mode 100644
index 0000000..592819d
--- /dev/null
+++ b/src/main/resources/templates/bld/base/project_build.txt
@@ -0,0 +1,20 @@
+package {{v package/}};
+
+import rife.bld.BaseProject;
+
+import java.util.List;
+
+public class {{v projectBuild/}} extends BaseProject {
+    public {{v projectBuild/}}() {
+        pkg = "{{v package/}}";
+        name = "{{v project/}}";
+        mainClass = "{{v package/}}.{{v projectMain/}}";
+        version = version(0,1,0);
+
+        testOperation().mainClass("{{v package/}}.{{v projectTest/}}");
+    }
+
+    public static void main(String[] args) {
+        new {{v projectBuild/}}().start(args);
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/project_gitignore.txt b/src/main/resources/templates/bld/base/project_gitignore.txt
new file mode 100644
index 0000000..e448f8a
--- /dev/null
+++ b/src/main/resources/templates/bld/base/project_gitignore.txt
@@ -0,0 +1,55 @@
+.gradle
+.DS_Store
+build
+lib/compile/
+lib/runtime/
+lib/standalone/
+lib/test/
+lib/bld/**
+!bld-wrapper.jar
+!bld-wrapper.properties
+
+# IDEA ignores
+
+# User-specific
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Editor-based Rest Client
+.idea/httpRequests
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/project_main.txt b/src/main/resources/templates/bld/base/project_main.txt
new file mode 100644
index 0000000..a146603
--- /dev/null
+++ b/src/main/resources/templates/bld/base/project_main.txt
@@ -0,0 +1,11 @@
+package {{v package/}};
+
+public class {{v projectMain/}} {
+    public String getMessage() {
+        return "Hello World!";
+    }
+
+    public static void main(String[] args) {
+        System.out.println(new {{v projectMain/}}().getMessage());
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/project_test.txt b/src/main/resources/templates/bld/base/project_test.txt
new file mode 100644
index 0000000..afa0e38
--- /dev/null
+++ b/src/main/resources/templates/bld/base/project_test.txt
@@ -0,0 +1,15 @@
+package {{v package/}};
+
+public class {{v projectTest/}} {
+    void verifyHello() {
+        if (!"Hello World!".equals(new {{v projectMain/}}().getMessage())) {
+            throw new AssertionError();
+        } else {
+            System.out.println("Succeeded");
+        }
+    }
+
+    public static void main(String[] args) {
+        new {{v projectTest/}}().verifyHello();
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/base/vscode/launch.json b/src/main/resources/templates/bld/base/vscode/launch.json
new file mode 100644
index 0000000..8e2d977
--- /dev/null
+++ b/src/main/resources/templates/bld/base/vscode/launch.json
@@ -0,0 +1,17 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "java",
+            "name": "Run Main",
+            "request": "launch",
+            "mainClass": "{{v package/}}.{{v projectMain/}}"
+        },
+        {
+            "type": "java",
+            "name": "Run Tests",
+            "request": "launch",
+            "mainClass": "{{v package/}}.{{v projectTest/}}"
+        }
+    ]
+}
diff --git a/src/main/resources/templates/bld/base/vscode/settings.json b/src/main/resources/templates/bld/base/vscode/settings.json
new file mode 100644
index 0000000..61070be
--- /dev/null
+++ b/src/main/resources/templates/bld/base/vscode/settings.json
@@ -0,0 +1,15 @@
+{
+    "java.project.sourcePaths": [
+        "src/main/java",
+        "src/main/resources",
+        "src/test/java",
+        "src/bld/java"
+    ],
+    "java.configuration.updateBuildConfiguration": "automatic",
+    "java.project.referencedLibraries": [
+        "${HOME}/.rife2/dist/rife2-{{v version/}}.jar",
+        "lib/compile/*.jar",
+        "lib/runtime/*.jar",
+        "lib/test/*.jar"
+    ]
+}
diff --git a/src/main/resources/templates/bld/blank/idea/app_iml.xml b/src/main/resources/templates/bld/blank/idea/app_iml.xml
new file mode 100644
index 0000000..787b59b
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/idea/app_iml.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/build/main" />
+    <output-test url="file://$MODULE_DIR$/build/test" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
+      <excludeFolder url="file://$MODULE_DIR$/src/main/resources/templates" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module-library" scope="RUNTIME">
+      <library>
+        <CLASSES>
+          <root url="file://$MODULE_DIR$/src/main/resources/templates" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+    <orderEntry type="library" name="compile" level="project" />
+    <orderEntry type="library" scope="RUNTIME" name="runtime" level="project" />
+    <orderEntry type="library" scope="TEST" name="test" level="project" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/idea/bld_iml.xml b/src/main/resources/templates/bld/blank/idea/bld_iml.xml
new file mode 100644
index 0000000..e63e11e
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/idea/bld_iml.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/build/bld" />
+    <output-test url="file://$MODULE_DIR$/build/bld" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$/src/bld">
+      <sourceFolder url="file://$MODULE_DIR$/src/bld/java" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="bld" level="project" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/idea/libraries/bld.xml b/src/main/resources/templates/bld/blank/idea/libraries/bld.xml
new file mode 100644
index 0000000..8fe8c38
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/idea/libraries/bld.xml
@@ -0,0 +1,17 @@
+<component name="libraryTable">
+  <library name="bld">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/bld" />
+      <root url="jar://$USER_HOME$/.rife2/dist/rife2-{{v version/}}.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="jar://$USER_HOME$/.rife2/dist/rife2-{{v version/}}-sources.jar!/" />
+    </SOURCES>
+    <excluded>
+      <root url="jar://$PROJECT_DIR$/lib/bld/bld-wrapper.jar!/" />
+    </excluded>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/bld" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/bld" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/idea/libraries/compile.xml b/src/main/resources/templates/bld/blank/idea/libraries/compile.xml
new file mode 100644
index 0000000..9bd86aa
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/idea/libraries/compile.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="compile">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/compile" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/compile" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/idea/libraries/runtime.xml b/src/main/resources/templates/bld/blank/idea/libraries/runtime.xml
new file mode 100644
index 0000000..2ae5c4b
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/idea/libraries/runtime.xml
@@ -0,0 +1,14 @@
+<component name="libraryTable">
+  <library name="runtime">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/runtime" />
+      <root url="file://$PROJECT_DIR$/src/main/resources" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/runtime" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/idea/libraries/test.xml b/src/main/resources/templates/bld/blank/idea/libraries/test.xml
new file mode 100644
index 0000000..b80486a
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/idea/libraries/test.xml
@@ -0,0 +1,14 @@
+<component name="libraryTable">
+  <library name="test">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/test" />
+      <root url="file://$PROJECT_DIR$/src/test/resources" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/test" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/idea/misc.xml b/src/main/resources/templates/bld/blank/idea/misc.xml
new file mode 100644
index 0000000..11f86d2
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/idea/modules.xml b/src/main/resources/templates/bld/blank/idea/modules.xml
new file mode 100644
index 0000000..55adcb9
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/idea/modules.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/app.iml" filepath="$PROJECT_DIR$/.idea/app.iml" />
+      <module fileurl="file://$PROJECT_DIR$/.idea/bld.iml" filepath="$PROJECT_DIR$/.idea/bld.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/idea/runConfigurations/Run_Main.xml b/src/main/resources/templates/bld/blank/idea/runConfigurations/Run_Main.xml
new file mode 100644
index 0000000..2a5c07c
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/idea/runConfigurations/Run_Main.xml
@@ -0,0 +1,9 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Run Main" type="Application" factoryName="Application" nameIsGenerated="true">
+    <option name="MAIN_CLASS_NAME" value="{{v package/}}.{{v projectMain/}}" />
+    <module name="app" />
+    <method v="2">
+      <option name="Make" enabled="true" />
+    </method>
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/idea/runConfigurations/Run_Tests.xml b/src/main/resources/templates/bld/blank/idea/runConfigurations/Run_Tests.xml
new file mode 100644
index 0000000..a71fbce
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/idea/runConfigurations/Run_Tests.xml
@@ -0,0 +1,13 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Run Tests" type="JUnit" factoryName="JUnit">
+    <module name="app" />
+    <option name="PACKAGE_NAME" value="moog" />
+    <option name="MAIN_CLASS_NAME" value="{{v package/}}" />
+    <option name="METHOD_NAME" value="" />
+    <option name="TEST_OBJECT" value="directory" />
+    <dir value="$PROJECT_DIR$/src/test/java" />
+    <method v="2">
+      <option name="Make" enabled="true" />
+    </method>
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/project_build.txt b/src/main/resources/templates/bld/blank/project_build.txt
new file mode 100644
index 0000000..7f0211f
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/project_build.txt
@@ -0,0 +1,26 @@
+package {{v package/}};
+
+import rife.bld.Project;
+
+import java.util.List;
+
+import static rife.bld.dependencies.Repository.*;
+import static rife.bld.dependencies.Scope.*;
+
+public class {{v projectBuild/}} extends Project {
+    public {{v projectBuild/}}() {
+        pkg = "{{v package/}}";
+        name = "{{v project/}}";
+        mainClass = "{{v package/}}.{{v projectMain/}}";
+        version = version(0,1,0);
+
+        downloadSources = true;
+        repositories = List.of(MAVEN_CENTRAL, RIFE2_RELEASES);
+{{v scopes}}{{/v}}{{b scope}}        scope({{v name/}}){{v dependencies}}{{/v}};
+{{b dependency}}
+            .include(dependency("{{v groupId/}}", "{{v artifactId/}}", version({{v version/}}))){{/b}}{{/b}}    }
+
+    public static void main(String[] args) {
+        new {{v projectBuild/}}().start(args);
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/project_gitignore.txt b/src/main/resources/templates/bld/blank/project_gitignore.txt
new file mode 100644
index 0000000..e448f8a
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/project_gitignore.txt
@@ -0,0 +1,55 @@
+.gradle
+.DS_Store
+build
+lib/compile/
+lib/runtime/
+lib/standalone/
+lib/test/
+lib/bld/**
+!bld-wrapper.jar
+!bld-wrapper.properties
+
+# IDEA ignores
+
+# User-specific
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Editor-based Rest Client
+.idea/httpRequests
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/project_main.txt b/src/main/resources/templates/bld/blank/project_main.txt
new file mode 100644
index 0000000..a146603
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/project_main.txt
@@ -0,0 +1,11 @@
+package {{v package/}};
+
+public class {{v projectMain/}} {
+    public String getMessage() {
+        return "Hello World!";
+    }
+
+    public static void main(String[] args) {
+        System.out.println(new {{v projectMain/}}().getMessage());
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/blank/project_test.txt b/src/main/resources/templates/bld/blank/project_test.txt
new file mode 100644
index 0000000..3c4fe33
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/project_test.txt
@@ -0,0 +1,12 @@
+package {{v package/}};
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class {{v projectTest/}} {
+    @Test
+    void verifyHello() {
+        assertEquals("Hello World!", new {{v projectMain/}}().getMessage());
+    }
+}
diff --git a/src/main/resources/templates/bld/blank/vscode/launch.json b/src/main/resources/templates/bld/blank/vscode/launch.json
new file mode 100644
index 0000000..ea955f1
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/vscode/launch.json
@@ -0,0 +1,24 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "java",
+            "name": "Run Main",
+            "request": "launch",
+            "mainClass": "{{v package/}}.{{v projectMain/}}"
+        },
+        {
+            "type": "java",
+            "name": "Run Tests",
+            "request": "launch",
+            "mainClass": "org.junit.platform.console.ConsoleLauncher",
+            "args": [
+                "--details=verbose",
+                "--scan-classpath",
+                "--disable-banner",
+                "--disable-ansi-colors",
+                "--exclude-engine=junit-platform-suite",
+                "--exclude-engine=junit-vintage"]
+        }
+    ]
+}
diff --git a/src/main/resources/templates/bld/blank/vscode/settings.json b/src/main/resources/templates/bld/blank/vscode/settings.json
new file mode 100644
index 0000000..61070be
--- /dev/null
+++ b/src/main/resources/templates/bld/blank/vscode/settings.json
@@ -0,0 +1,15 @@
+{
+    "java.project.sourcePaths": [
+        "src/main/java",
+        "src/main/resources",
+        "src/test/java",
+        "src/bld/java"
+    ],
+    "java.configuration.updateBuildConfiguration": "automatic",
+    "java.project.referencedLibraries": [
+        "${HOME}/.rife2/dist/rife2-{{v version/}}.jar",
+        "lib/compile/*.jar",
+        "lib/runtime/*.jar",
+        "lib/test/*.jar"
+    ]
+}
diff --git a/src/main/resources/templates/bld/bld.txt b/src/main/resources/templates/bld/bld.txt
new file mode 100755
index 0000000..3dbdc3d
--- /dev/null
+++ b/src/main/resources/templates/bld/bld.txt
@@ -0,0 +1,2 @@
+#!/usr/bin/env sh
+java -jar "$(dirname "$0")/lib/bld/bld-wrapper.jar" "$0" --build {{v package/}}.{{v projectBuild/}} "$@"
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/bld_bat.txt b/src/main/resources/templates/bld/bld_bat.txt
new file mode 100755
index 0000000..4cae652
--- /dev/null
+++ b/src/main/resources/templates/bld/bld_bat.txt
@@ -0,0 +1,4 @@
+@echo off
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+java -jar "%DIRNAME%/lib/bld/bld-wrapper.jar" "%0" --build {{v package/}}.{{v projectBuild/}} %*
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/idea/app_iml.xml b/src/main/resources/templates/bld/lib/idea/app_iml.xml
new file mode 100644
index 0000000..787b59b
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/idea/app_iml.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/build/main" />
+    <output-test url="file://$MODULE_DIR$/build/test" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
+      <excludeFolder url="file://$MODULE_DIR$/src/main/resources/templates" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module-library" scope="RUNTIME">
+      <library>
+        <CLASSES>
+          <root url="file://$MODULE_DIR$/src/main/resources/templates" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+    <orderEntry type="library" name="compile" level="project" />
+    <orderEntry type="library" scope="RUNTIME" name="runtime" level="project" />
+    <orderEntry type="library" scope="TEST" name="test" level="project" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/idea/bld_iml.xml b/src/main/resources/templates/bld/lib/idea/bld_iml.xml
new file mode 100644
index 0000000..e63e11e
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/idea/bld_iml.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/build/bld" />
+    <output-test url="file://$MODULE_DIR$/build/bld" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$/src/bld">
+      <sourceFolder url="file://$MODULE_DIR$/src/bld/java" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="bld" level="project" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/idea/libraries/bld.xml b/src/main/resources/templates/bld/lib/idea/libraries/bld.xml
new file mode 100644
index 0000000..8fe8c38
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/idea/libraries/bld.xml
@@ -0,0 +1,17 @@
+<component name="libraryTable">
+  <library name="bld">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/bld" />
+      <root url="jar://$USER_HOME$/.rife2/dist/rife2-{{v version/}}.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="jar://$USER_HOME$/.rife2/dist/rife2-{{v version/}}-sources.jar!/" />
+    </SOURCES>
+    <excluded>
+      <root url="jar://$PROJECT_DIR$/lib/bld/bld-wrapper.jar!/" />
+    </excluded>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/bld" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/bld" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/idea/libraries/compile.xml b/src/main/resources/templates/bld/lib/idea/libraries/compile.xml
new file mode 100644
index 0000000..9bd86aa
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/idea/libraries/compile.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="compile">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/compile" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/compile" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/idea/libraries/runtime.xml b/src/main/resources/templates/bld/lib/idea/libraries/runtime.xml
new file mode 100644
index 0000000..2ae5c4b
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/idea/libraries/runtime.xml
@@ -0,0 +1,14 @@
+<component name="libraryTable">
+  <library name="runtime">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/runtime" />
+      <root url="file://$PROJECT_DIR$/src/main/resources" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/runtime" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/idea/libraries/test.xml b/src/main/resources/templates/bld/lib/idea/libraries/test.xml
new file mode 100644
index 0000000..b80486a
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/idea/libraries/test.xml
@@ -0,0 +1,14 @@
+<component name="libraryTable">
+  <library name="test">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/test" />
+      <root url="file://$PROJECT_DIR$/src/test/resources" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/test" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/idea/misc.xml b/src/main/resources/templates/bld/lib/idea/misc.xml
new file mode 100644
index 0000000..11f86d2
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/idea/modules.xml b/src/main/resources/templates/bld/lib/idea/modules.xml
new file mode 100644
index 0000000..55adcb9
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/idea/modules.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/app.iml" filepath="$PROJECT_DIR$/.idea/app.iml" />
+      <module fileurl="file://$PROJECT_DIR$/.idea/bld.iml" filepath="$PROJECT_DIR$/.idea/bld.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/idea/runConfigurations/Run_Tests.xml b/src/main/resources/templates/bld/lib/idea/runConfigurations/Run_Tests.xml
new file mode 100644
index 0000000..58611e1
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/idea/runConfigurations/Run_Tests.xml
@@ -0,0 +1,9 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Run Tests" type="Application" factoryName="Application" nameIsGenerated="true">
+    <option name="MAIN_CLASS_NAME" value="{{v package/}}.{{v projectTest/}}" />
+    <module name="app" />
+    <method v="2">
+      <option name="Make" enabled="true" />
+    </method>
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/project_build.txt b/src/main/resources/templates/bld/lib/project_build.txt
new file mode 100644
index 0000000..491437c
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/project_build.txt
@@ -0,0 +1,19 @@
+package {{v package/}};
+
+import rife.bld.BaseProject;
+
+import java.util.List;
+
+public class {{v projectBuild/}} extends BaseProject {
+    public {{v projectBuild/}}() {
+        pkg = "{{v package/}}";
+        name = "{{v project/}}";
+        version = version(0,1,0);
+
+        testOperation().mainClass("{{v package/}}.{{v projectTest/}}");
+    }
+
+    public static void main(String[] args) {
+        new {{v projectBuild/}}().start(args);
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/project_gitignore.txt b/src/main/resources/templates/bld/lib/project_gitignore.txt
new file mode 100644
index 0000000..e448f8a
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/project_gitignore.txt
@@ -0,0 +1,55 @@
+.gradle
+.DS_Store
+build
+lib/compile/
+lib/runtime/
+lib/standalone/
+lib/test/
+lib/bld/**
+!bld-wrapper.jar
+!bld-wrapper.properties
+
+# IDEA ignores
+
+# User-specific
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Editor-based Rest Client
+.idea/httpRequests
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/project_main.txt b/src/main/resources/templates/bld/lib/project_main.txt
new file mode 100644
index 0000000..0286b1b
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/project_main.txt
@@ -0,0 +1,7 @@
+package {{v package/}};
+
+public class {{v projectMain/}} {
+    public String getMessage() {
+        return "Hello World!";
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/project_test.txt b/src/main/resources/templates/bld/lib/project_test.txt
new file mode 100644
index 0000000..afa0e38
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/project_test.txt
@@ -0,0 +1,15 @@
+package {{v package/}};
+
+public class {{v projectTest/}} {
+    void verifyHello() {
+        if (!"Hello World!".equals(new {{v projectMain/}}().getMessage())) {
+            throw new AssertionError();
+        } else {
+            System.out.println("Succeeded");
+        }
+    }
+
+    public static void main(String[] args) {
+        new {{v projectTest/}}().verifyHello();
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/lib/vscode/launch.json b/src/main/resources/templates/bld/lib/vscode/launch.json
new file mode 100644
index 0000000..ca24818
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/vscode/launch.json
@@ -0,0 +1,11 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "java",
+            "name": "Run Tests",
+            "request": "launch",
+            "mainClass": "{{v package/}}.{{v projectTest/}}"
+        }
+    ]
+}
diff --git a/src/main/resources/templates/bld/lib/vscode/settings.json b/src/main/resources/templates/bld/lib/vscode/settings.json
new file mode 100644
index 0000000..61070be
--- /dev/null
+++ b/src/main/resources/templates/bld/lib/vscode/settings.json
@@ -0,0 +1,15 @@
+{
+    "java.project.sourcePaths": [
+        "src/main/java",
+        "src/main/resources",
+        "src/test/java",
+        "src/bld/java"
+    ],
+    "java.configuration.updateBuildConfiguration": "automatic",
+    "java.project.referencedLibraries": [
+        "${HOME}/.rife2/dist/rife2-{{v version/}}.jar",
+        "lib/compile/*.jar",
+        "lib/runtime/*.jar",
+        "lib/test/*.jar"
+    ]
+}
diff --git a/src/main/resources/templates/bld/maven_metadata_blueprint.xml b/src/main/resources/templates/bld/maven_metadata_blueprint.xml
new file mode 100644
index 0000000..4ee170f
--- /dev/null
+++ b/src/main/resources/templates/bld/maven_metadata_blueprint.xml
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<metadata modelVersion="1.1.0">
+  <groupId><!--v groupId--><!--/v--></groupId>
+  <artifactId><!--v artifactId--><!--/v--></artifactId>
+  <!--v mainVersion-tag--><!--/v-->
+  <!--b mainVersion-tag-->
+  <version><!--v mainVersion--><!--/v--></version>
+  <!--/b-->
+
+  <versioning>
+    <!--v versionLatest-tag--><!--/v-->
+    <!--b versionLatest-tag-->
+    <latest><!--v latestVersion--><!--/v--></latest>
+    <release><!--v releaseVersion--><!--/v--></release>
+    <!--/b-->
+
+    <!--v versions-tag--><!--/v-->
+    <!--b versions-tag-->
+    <versions>
+      <!--v versions--><!--/v-->
+      <!--b version-->
+      <version><!--v version--><!--/v--></version>
+      <!--/b-->
+    </versions>
+    <!--/b-->
+
+    <!--v snapshot-tag--><!--/v-->
+    <!--b snapshot-tag-->
+    <snapshot>
+      <timestamp><!--v snapshot-timestamp--><!--/v--></timestamp>
+      <buildNumber><!--v snapshot-buildNumber--><!--/v--></buildNumber>
+    </snapshot>
+    <!--/b-->
+    <!--b snapshot-local-tag-->
+    <snapshot>
+      <localCopy>true</localCopy>
+    </snapshot>
+    <!--/b-->
+
+    <!--v lastUpdated-tag--><!--/v-->
+    <!--b lastUpdated-tag-->
+    <lastUpdated><!--v lastUpdated--><!--/v--></lastUpdated>
+    <!--/b-->
+
+    <!--v snapshotVersions-tag--><!--/v-->
+    <!--b snapshotVersions-tag-->
+    <snapshotVersions>
+      <!--v snapshotVersions--><!--/v-->
+      <!--b snapshotVersion-->
+      <snapshotVersion>
+        <!--v snapshotVersionClassifier-tag--><!--/v-->
+        <!--b snapshotVersionClassifier-tag-->
+        <classifier><!--v snapshotVersion-classifier--><!--/v--></classifier>
+        <!--/b-->
+        <extension><!--v snapshotVersion-extension--><!--/v--></extension>
+        <value><!--v snapshotVersion-value--><!--/v--></value>
+        <updated><!--v snapshotVersion-updated--><!--/v--></updated>
+      </snapshotVersion>
+      <!--/b-->
+    </snapshotVersions>
+    <!--/b-->
+  </versioning>
+</metadata>
diff --git a/src/main/resources/templates/bld/pom_blueprint.xml b/src/main/resources/templates/bld/pom_blueprint.xml
new file mode 100644
index 0000000..eabcdad
--- /dev/null
+++ b/src/main/resources/templates/bld/pom_blueprint.xml
@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId><!--v groupId--><!--/v--></groupId>
+  <artifactId><!--v artifactId--><!--/v--></artifactId>
+  <version><!--v version--><!--/v--></version>
+  <name><!--v name--><!--/v--></name>
+  <description><!--v description--><!--/v--></description>
+  <url><!--v url--><!--/v--></url>
+
+  <!--v licenses-tag--><!--/v-->
+  <!--b licenses-tag-->
+  <licenses>
+    <!--v licenses--><!--/v-->
+    <!--b license-->
+    <license>
+      <name><!--v license-name--><!--/v--></name>
+      <url><!--v license-url--><!--/v--></url>
+    </license>
+    <!--/b-->
+  </licenses>
+  <!--/b-->
+
+  <!--v dependencies-tag--><!--/v-->
+  <!--b dependencies-tag-->
+  <dependencies>
+    <!--v dependencies--><!--/v-->
+    <!--b dependency-->
+    <dependency>
+      <groupId><!--v dependency-groupId--><!--/v--></groupId>
+      <artifactId><!--v dependency-artifactId--><!--/v--></artifactId>
+      <!--v dependency-version-tag--><!--/v-->
+      <!--b dependency-version-tag--><version><!--v dependency-version--><!--/v--></version><!--/b-->
+      <!--v dependency-type-tag--><!--/v-->
+      <!--b dependency-type-tag--><type><!--v dependency-type--><!--/v--></type><!--/b-->
+      <!--v dependency-classifier-tag--><!--/v-->
+      <!--b dependency-classifier-tag--><classifier><!--v dependency-classifier--><!--/v--></classifier><!--/b-->
+      <scope><!--v dependency-scope--><!--/v--></scope>
+      <!--v dependency-exclusions-tag--><!--/v-->
+      <!--b dependency-exclusions-tag-->
+      <exclusions>
+        <!--v dependency-exclusions--><!--/v-->
+        <!--b dependency-exclusion-->
+        <exclusion>
+          <groupId><!--v exclusion-groupId--><!--/v--></groupId>
+          <artifactId><!--v exclusion-artifactId--><!--/v--></artifactId>
+        </exclusion>
+        <!--/b-->
+      </exclusions>
+      <!--/b-->
+    </dependency>
+    <!--/b-->
+  </dependencies>
+  <!--/b-->
+
+  <!--v developers-tag--><!--/v-->
+  <!--b developers-tag-->
+  <developers>
+    <!--v developers--><!--/v-->
+    <!--b developer-->
+    <developer>
+      <id><!--v developer-id--><!--/v--></id>
+      <name><!--v developer-name--><!--/v--></name>
+      <email><!--v developer-email--><!--/v--></email>
+      <url><!--v developer-url--><!--/v--></url>
+    </developer>
+    <!--/b-->
+  </developers>
+  <!--/b-->
+
+  <!--v scm-tag--><!--/v-->
+  <!--b scm-tag-->
+  <scm>
+    <connection><!--v scm-connection--><!--/v--></connection>
+    <developerConnection><!--v scm-developerConnection--><!--/v--></developerConnection>
+    <url><!--v scm-url--><!--/v--></url>
+  </scm>
+  <!--/b-->
+</project>
diff --git a/src/main/resources/templates/bld/rife2_hello/idea/app_iml.xml b/src/main/resources/templates/bld/rife2_hello/idea/app_iml.xml
new file mode 100644
index 0000000..ed7c37f
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/idea/app_iml.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/build/main" />
+    <output-test url="file://$MODULE_DIR$/build/test" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
+      <excludeFolder url="file://$MODULE_DIR$/src/main/resources/templates" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module-library" scope="RUNTIME">
+      <library>
+        <CLASSES>
+          <root url="file://$MODULE_DIR$/src/main/resources/templates" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+    <orderEntry type="library" name="compile" level="project" />
+    <orderEntry type="library" scope="RUNTIME" name="runtime" level="project" />
+    <orderEntry type="library" scope="RUNTIME" name="standalone" level="project" />
+    <orderEntry type="library" scope="TEST" name="test" level="project" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/idea/bld_iml.xml b/src/main/resources/templates/bld/rife2_hello/idea/bld_iml.xml
new file mode 100644
index 0000000..e63e11e
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/idea/bld_iml.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/build/bld" />
+    <output-test url="file://$MODULE_DIR$/build/bld" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$/src/bld">
+      <sourceFolder url="file://$MODULE_DIR$/src/bld/java" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="bld" level="project" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/idea/libraries/bld.xml b/src/main/resources/templates/bld/rife2_hello/idea/libraries/bld.xml
new file mode 100644
index 0000000..8fe8c38
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/idea/libraries/bld.xml
@@ -0,0 +1,17 @@
+<component name="libraryTable">
+  <library name="bld">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/bld" />
+      <root url="jar://$USER_HOME$/.rife2/dist/rife2-{{v version/}}.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="jar://$USER_HOME$/.rife2/dist/rife2-{{v version/}}-sources.jar!/" />
+    </SOURCES>
+    <excluded>
+      <root url="jar://$PROJECT_DIR$/lib/bld/bld-wrapper.jar!/" />
+    </excluded>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/bld" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/bld" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/idea/libraries/compile.xml b/src/main/resources/templates/bld/rife2_hello/idea/libraries/compile.xml
new file mode 100644
index 0000000..9bd86aa
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/idea/libraries/compile.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="compile">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/compile" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/compile" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/compile" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/idea/libraries/runtime.xml b/src/main/resources/templates/bld/rife2_hello/idea/libraries/runtime.xml
new file mode 100644
index 0000000..2ae5c4b
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/idea/libraries/runtime.xml
@@ -0,0 +1,14 @@
+<component name="libraryTable">
+  <library name="runtime">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/runtime" />
+      <root url="file://$PROJECT_DIR$/src/main/resources" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/runtime" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/runtime" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/idea/libraries/standalone.xml b/src/main/resources/templates/bld/rife2_hello/idea/libraries/standalone.xml
new file mode 100644
index 0000000..643da27
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/idea/libraries/standalone.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="standalone">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/standalone" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/standalone" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/standalone" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/standalone" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/idea/libraries/test.xml b/src/main/resources/templates/bld/rife2_hello/idea/libraries/test.xml
new file mode 100644
index 0000000..b80486a
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/idea/libraries/test.xml
@@ -0,0 +1,14 @@
+<component name="libraryTable">
+  <library name="test">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/lib/test" />
+      <root url="file://$PROJECT_DIR$/src/test/resources" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/test" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/lib/test" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/idea/misc.xml b/src/main/resources/templates/bld/rife2_hello/idea/misc.xml
new file mode 100644
index 0000000..11f86d2
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/idea/modules.xml b/src/main/resources/templates/bld/rife2_hello/idea/modules.xml
new file mode 100644
index 0000000..55adcb9
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/idea/modules.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/app.iml" filepath="$PROJECT_DIR$/.idea/app.iml" />
+      <module fileurl="file://$PROJECT_DIR$/.idea/bld.iml" filepath="$PROJECT_DIR$/.idea/bld.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/idea/runConfigurations/Run_Main.xml b/src/main/resources/templates/bld/rife2_hello/idea/runConfigurations/Run_Main.xml
new file mode 100644
index 0000000..2a5c07c
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/idea/runConfigurations/Run_Main.xml
@@ -0,0 +1,9 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Run Main" type="Application" factoryName="Application" nameIsGenerated="true">
+    <option name="MAIN_CLASS_NAME" value="{{v package/}}.{{v projectMain/}}" />
+    <module name="app" />
+    <method v="2">
+      <option name="Make" enabled="true" />
+    </method>
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/idea/runConfigurations/Run_Tests.xml b/src/main/resources/templates/bld/rife2_hello/idea/runConfigurations/Run_Tests.xml
new file mode 100644
index 0000000..a71fbce
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/idea/runConfigurations/Run_Tests.xml
@@ -0,0 +1,13 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Run Tests" type="JUnit" factoryName="JUnit">
+    <module name="app" />
+    <option name="PACKAGE_NAME" value="moog" />
+    <option name="MAIN_CLASS_NAME" value="{{v package/}}" />
+    <option name="METHOD_NAME" value="" />
+    <option name="TEST_OBJECT" value="directory" />
+    <dir value="$PROJECT_DIR$/src/test/java" />
+    <method v="2">
+      <option name="Make" enabled="true" />
+    </method>
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/project_build.txt b/src/main/resources/templates/bld/rife2_hello/project_build.txt
new file mode 100644
index 0000000..e24b236
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/project_build.txt
@@ -0,0 +1,31 @@
+package {{v package/}};
+
+import rife.bld.WebProject;
+
+import java.util.List;
+
+import static rife.bld.dependencies.Repository.*;
+import static rife.bld.dependencies.Scope.*;
+import static rife.bld.operations.TemplateType.*;
+
+public class {{v projectBuild/}} extends WebProject {
+    public {{v projectBuild/}}() {
+        pkg = "{{v package/}}";
+        name = "{{v project/}}";
+        mainClass = "{{v package/}}.{{v projectMain/}}";
+        uberJarMainClass = "{{v package/}}.{{v projectMainUber/}}";
+        version = version(0,1,0);
+
+        downloadSources = true;
+        repositories = List.of(MAVEN_CENTRAL, RIFE2_RELEASES);
+{{v scopes}}{{/v}}{{b scope}}        scope({{v name/}}){{v dependencies}}{{/v}};
+{{b dependency}}
+            .include(dependency("{{v groupId/}}", "{{v artifactId/}}", version({{v version/}}))){{/b}}{{/b}}
+        precompileOperation()
+            .templateTypes(HTML);
+    }
+
+    public static void main(String[] args) {
+        new {{v projectBuild/}}().start(args);
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/project_gitignore.txt b/src/main/resources/templates/bld/rife2_hello/project_gitignore.txt
new file mode 100644
index 0000000..e448f8a
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/project_gitignore.txt
@@ -0,0 +1,55 @@
+.gradle
+.DS_Store
+build
+lib/compile/
+lib/runtime/
+lib/standalone/
+lib/test/
+lib/bld/**
+!bld-wrapper.jar
+!bld-wrapper.properties
+
+# IDEA ignores
+
+# User-specific
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Editor-based Rest Client
+.idea/httpRequests
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/project_main.txt b/src/main/resources/templates/bld/rife2_hello/project_main.txt
new file mode 100644
index 0000000..300a6d0
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/project_main.txt
@@ -0,0 +1,16 @@
+package {{v package/}};
+
+import rife.engine.*;
+
+public class {{v projectMain/}} extends Site {
+    public void setup() {
+        var hello = get("/hello", c -> c.print(c.template("hello")));
+        get("/", c -> c.redirect(hello));
+    }
+
+    public static void main(String[] args) {
+        new Server()
+            .staticResourceBase("src/main/webapp")
+            .start(new {{v projectMain/}}());
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/project_main_uber.txt b/src/main/resources/templates/bld/rife2_hello/project_main_uber.txt
new file mode 100644
index 0000000..58504f7
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/project_main_uber.txt
@@ -0,0 +1,11 @@
+package {{v package/}};
+
+import rife.engine.Server;
+
+public class {{v projectMainUber/}} extends {{v projectMain/}} {
+    public static void main(String[] args) {
+        new Server()
+            .staticUberJarResourceBase("webapp")
+            .start(new {{v projectMainUber/}}());
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/project_style.txt b/src/main/resources/templates/bld/rife2_hello/project_style.txt
new file mode 100644
index 0000000..52bf6c7
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/project_style.txt
@@ -0,0 +1,21 @@
+:root {
+    /* fonts */
+    --main-font: sans-serif;
+
+    /* font sizes */
+    --main-font-size: 18px;
+
+    /* colors */
+    --main-background-color: #0d0d0d;
+    --main-text-color: #d0d0d0;
+
+    /* margins and padding */
+    --content-padding: 2em;
+}
+body {
+    background: var(--main-background-color);
+    font-family: var(--main-font);
+    font-style: var(--main-font-size);
+    color: var(--main-text-color);
+    padding: var(--content-padding);
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/project_template.html b/src/main/resources/templates/bld/rife2_hello/project_template.html
new file mode 100644
index 0000000..125d001
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/project_template.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>\<!--v title-->Hello {{v project/}}\<!--/v--></title>
+  <link rel="stylesheet" href="\{{v webapp:rootUrl/}}css/style.css?\{{v context:paramRandom/}}">
+</head>
+<body>
+<p>Hello World <!--v project/--></p>
+</body>
+</html>
diff --git a/src/main/resources/templates/bld/rife2_hello/project_test.txt b/src/main/resources/templates/bld/rife2_hello/project_test.txt
new file mode 100644
index 0000000..cd3168d
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/project_test.txt
@@ -0,0 +1,21 @@
+package {{v package/}};
+
+import org.junit.jupiter.api.Test;
+import rife.test.MockConversation;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class {{v projectTest/}} {
+    @Test
+    void verifyRoot() {
+        var m = new MockConversation(new {{v projectMain/}}());
+        assertEquals(m.doRequest("/").getStatus(), 302);
+    }
+
+    @Test
+    void verifyHello() {
+        var m = new MockConversation(new {{v projectMain/}}());
+        assertEquals("Hello {{v project/}}", m.doRequest("/hello")
+            .getTemplate().getValue("title"));
+    }
+}
diff --git a/src/main/resources/templates/bld/rife2_hello/project_web.xml b/src/main/resources/templates/bld/rife2_hello/project_web.xml
new file mode 100644
index 0000000..d4a60d5
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/project_web.xml
@@ -0,0 +1,18 @@
+<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
+         version="4.0">
+    <filter>
+        <filter-name>RIFE2</filter-name>
+        <filter-class>rife.servlet.RifeFilter</filter-class>
+        <init-param>
+            <param-name>rifeSiteClass</param-name>
+            <param-value>{{v package/}}.{{v projectMain/}}</param-value>
+        </init-param>
+    </filter>
+
+    <filter-mapping>
+        <filter-name>RIFE2</filter-name>
+        <url-pattern>/*</url-pattern>
+    </filter-mapping>
+</web-app>
\ No newline at end of file
diff --git a/src/main/resources/templates/bld/rife2_hello/vscode/launch.json b/src/main/resources/templates/bld/rife2_hello/vscode/launch.json
new file mode 100644
index 0000000..ea955f1
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/vscode/launch.json
@@ -0,0 +1,24 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "java",
+            "name": "Run Main",
+            "request": "launch",
+            "mainClass": "{{v package/}}.{{v projectMain/}}"
+        },
+        {
+            "type": "java",
+            "name": "Run Tests",
+            "request": "launch",
+            "mainClass": "org.junit.platform.console.ConsoleLauncher",
+            "args": [
+                "--details=verbose",
+                "--scan-classpath",
+                "--disable-banner",
+                "--disable-ansi-colors",
+                "--exclude-engine=junit-platform-suite",
+                "--exclude-engine=junit-vintage"]
+        }
+    ]
+}
diff --git a/src/main/resources/templates/bld/rife2_hello/vscode/settings.json b/src/main/resources/templates/bld/rife2_hello/vscode/settings.json
new file mode 100644
index 0000000..dd9db25
--- /dev/null
+++ b/src/main/resources/templates/bld/rife2_hello/vscode/settings.json
@@ -0,0 +1,16 @@
+{
+    "java.project.sourcePaths": [
+        "src/main/java",
+        "src/main/resources",
+        "src/main/webapp",
+        "src/test/java",
+        "src/bld/java"
+    ],
+    "java.configuration.updateBuildConfiguration": "automatic",
+    "java.project.referencedLibraries": [
+        "lib/compile/*.jar",
+        "lib/runtime/*.jar",
+        "lib/standalone/*.jar",
+        "lib/test/*.jar"
+    ]
+}
diff --git a/src/test/java/rife/bld/TestProject.java b/src/test/java/rife/bld/TestProject.java
new file mode 100644
index 0000000..cd4401c
--- /dev/null
+++ b/src/test/java/rife/bld/TestProject.java
@@ -0,0 +1,389 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.dependencies.VersionNumber;
+import rife.tools.FileUtils;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.PrintStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static rife.bld.dependencies.Repository.MAVEN_CENTRAL;
+import static rife.bld.dependencies.Scope.*;
+
+public class TestProject {
+    @Test
+    void testInstantiation() {
+        var project = new Project();
+
+        assertNotNull(project.workDirectory);
+        assertNotNull(project.workDirectory());
+        assertTrue(project.workDirectory().exists());
+        assertTrue(project.workDirectory().isDirectory());
+        assertNull(project.pkg);
+        assertThrows(IllegalStateException.class, project::pkg);
+        assertNull(project.name);
+        assertThrows(IllegalStateException.class, project::name);
+        assertNull(project.version);
+        assertThrows(IllegalStateException.class, project::version);
+        assertNull(project.mainClass);
+        assertThrows(IllegalStateException.class, project::mainClass);
+
+        assertNotNull(project.repositories);
+        assertTrue(project.repositories.isEmpty());
+        assertNotNull(project.dependencies);
+        assertTrue(project.dependencies.isEmpty());
+
+        assertNull(project.javaRelease);
+        assertNull(project.javaTool);
+        assertNotNull(project.javaTool());
+        assertEquals("java", project.javaTool());
+        assertNull(project.archiveBaseName);
+        assertThrows(IllegalStateException.class, project::archiveBaseName);
+        assertNull(project.jarFileName);
+        assertThrows(IllegalStateException.class, project::jarFileName);
+        assertNull(project.sourcesJarFileName);
+        assertThrows(IllegalStateException.class, project::sourcesJarFileName);
+        assertNull(project.javadocJarFileName);
+        assertThrows(IllegalStateException.class, project::javadocJarFileName);
+        assertNull(project.uberJarFileName);
+        assertThrows(IllegalStateException.class, project::uberJarFileName);
+        assertNull(project.uberJarMainClass);
+        assertThrows(IllegalStateException.class, project::uberJarMainClass);
+
+        assertNull(project.srcDirectory);
+        assertNotNull(project.srcDirectory());
+        assertNull(project.srcBldDirectory);
+        assertNotNull(project.srcBldDirectory());
+        assertNull(project.srcBldJavaDirectory);
+        assertNotNull(project.srcBldJavaDirectory());
+        assertNull(project.srcMainDirectory);
+        assertNotNull(project.srcMainDirectory());
+        assertNull(project.srcMainJavaDirectory);
+        assertNotNull(project.srcMainJavaDirectory());
+        assertNull(project.srcMainResourcesDirectory);
+        assertNotNull(project.srcMainResourcesDirectory());
+        assertNull(project.srcMainResourcesTemplatesDirectory);
+        assertNotNull(project.srcMainResourcesTemplatesDirectory());
+        assertNull(project.srcTestDirectory);
+        assertNotNull(project.srcTestDirectory());
+        assertNull(project.srcTestJavaDirectory);
+        assertNotNull(project.srcTestJavaDirectory());
+        assertNotNull(project.libBldDirectory());
+        assertNull(project.libDirectory);
+        assertNotNull(project.libDirectory());
+        assertNull(project.libCompileDirectory);
+        assertNotNull(project.libCompileDirectory());
+        assertNull(project.libRuntimeDirectory);
+        assertNotNull(project.libRuntimeDirectory());
+        assertNull(project.libStandaloneDirectory);
+        assertNull(project.libStandaloneDirectory());
+        assertNull(project.libTestDirectory);
+        assertNotNull(project.libTestDirectory());
+        assertNull(project.buildDirectory);
+        assertNotNull(project.buildDirectory());
+        assertNull(project.buildBldDirectory);
+        assertNotNull(project.buildBldDirectory());
+        assertNull(project.buildDistDirectory);
+        assertNotNull(project.buildDistDirectory());
+        assertNull(project.buildJavadocDirectory);
+        assertNotNull(project.buildJavadocDirectory());
+        assertNull(project.buildMainDirectory);
+        assertNotNull(project.buildMainDirectory());
+        assertNull(project.buildTemplatesDirectory);
+        assertNotNull(project.buildTemplatesDirectory());
+        assertNull(project.buildTestDirectory);
+        assertNotNull(project.buildTestDirectory());
+
+        assertNotNull(project.mainSourceFiles());
+        assertNotNull(project.testSourceFiles());
+        assertNotNull(project.compileClasspathJars());
+        assertNotNull(project.runtimeClasspathJars());
+        assertNotNull(project.standaloneClasspathJars());
+        assertNotNull(project.testClasspathJars());
+
+        assertNotNull(project.compileMainClasspath());
+        assertNotNull(project.compileTestClasspath());
+        assertNotNull(project.runClasspath());
+        assertNotNull(project.testClasspath());
+    }
+
+    static class CustomProject extends Project {
+        StringBuilder result_;
+
+        CustomProject(File tmp, StringBuilder result) {
+            result_ = result;
+            workDirectory = tmp;
+            pkg = "test.pkg";
+            name = "my_project";
+            version = new VersionNumber(0, 0, 1);
+        }
+
+        @BuildCommand
+        public void newcommand() {
+            assertEquals("newcommand", getCurrentCommandName());
+            assertNotNull(getCurrentCommandDefinition());
+            result_.append("newcommand");
+        }
+    }
+
+    @Test
+    void testCustomCommand()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var result = new StringBuilder();
+            var project = new CustomProject(tmp, result);
+
+            assertNull(project.getCurrentCommandName());
+            assertNull(project.getCurrentCommandDefinition());
+
+            project.execute(new String[]{"newcommand"});
+
+            assertNull(project.getCurrentCommandName());
+            assertNull(project.getCurrentCommandDefinition());
+
+            assertEquals("newcommand", result.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    static class CustomProjectInlineHelp extends Project {
+        CustomProjectInlineHelp(File tmp) {
+            workDirectory = tmp;
+            pkg = "test.pkg";
+            name = "my_project";
+            version = new VersionNumber(0, 0, 1);
+        }
+
+        @BuildCommand(summary = "mysummary", description = "mydescription")
+        public void newcommand() {
+        }
+    }
+
+    @Test
+    void testCustomCommandInlineHelp()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        var orig_err = System.err;
+        try {
+            var out = new ByteArrayOutputStream();
+            System.setErr(new PrintStream(out, true, StandardCharsets.UTF_8));
+
+            var project = new CustomProjectInlineHelp(tmp);
+            project.execute(new String[]{""});
+
+            assertTrue(out.toString(StandardCharsets.UTF_8).contains("newcommand       mysummary"));
+            out.reset();
+
+            project.execute(new String[]{"help", "newcommand"});
+            assertTrue(out.toString(StandardCharsets.UTF_8).contains("mydescription"));
+
+        } finally {
+            System.setErr(orig_err);
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    static class CustomProjectLambda extends Project {
+        CustomProjectLambda(File tmp, StringBuilder result) {
+            buildCommands().put("newcommand2", () -> {
+                assertEquals("newcommand2", getCurrentCommandName());
+                assertNotNull(getCurrentCommandDefinition());
+                result.append("newcommand2");
+            });
+            workDirectory = tmp;
+            pkg = "test.pkg";
+            name = "my_project";
+            version = new VersionNumber(0, 0, 1);
+        }
+    }
+
+    @Test
+    void testCustomCommandLambda()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var result = new StringBuilder();
+            var project = new CustomProjectLambda(tmp, result);
+
+            assertNull(project.getCurrentCommandName());
+            assertNull(project.getCurrentCommandDefinition());
+
+            project.execute(new String[]{"newcommand"});
+
+            assertNull(project.getCurrentCommandName());
+            assertNull(project.getCurrentCommandDefinition());
+
+            assertEquals("newcommand2", result.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testCommandMatch()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var result = new StringBuilder();
+            var project = new CustomProjectLambda(tmp, result);
+            project.execute(new String[]{"ne2", "nc2", "n2"});
+            assertEquals("newcommand2" +
+                "newcommand2" +
+                "newcommand2", result.toString());
+
+            result = new StringBuilder();
+            project.execute(new String[]{"c"});
+            assertEquals("", result.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    static class CustomProjectAutoPurge extends Project {
+        CustomProjectAutoPurge(File tmp) {
+            workDirectory = tmp;
+            pkg = "test.pkg";
+            name = "my_project";
+            version = new VersionNumber(0, 0, 1);
+
+            repositories = List.of(MAVEN_CENTRAL);
+            scope(compile)
+                .include(dependency("com.uwyn.rife2", "rife2", version(1, 5, 11)));
+            scope(test)
+                .include(dependency("org.jsoup", "jsoup", version(1, 15, 4)))
+                .include(dependency("org.junit.jupiter", "junit-jupiter", version(5, 9, 2)))
+                .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1, 9, 2)));
+            scope(standalone)
+                .include(dependency("org.eclipse.jetty", "jetty-server", version(11, 0, 14)))
+                .include(dependency("org.eclipse.jetty", "jetty-servlet", version(11, 0, 14)))
+                .include(dependency("org.slf4j", "slf4j-simple", version(2, 0, 7)));
+        }
+
+        public void enableAutoDownloadPurge() {
+            autoDownloadPurge = true;
+        }
+
+        public void increaseRife2Version() {
+            scope(compile).clear();
+            scope(compile)
+                .include(dependency("com.uwyn.rife2", "rife2", version(1, 5, 12)));
+        }
+
+        public void increaseRife2VersionMore() {
+            scope(compile).clear();
+            scope(compile)
+                .include(dependency("com.uwyn.rife2", "rife2", version(1, 5, 15)));
+        }
+    }
+
+    @Test
+    void testAutoDownloadPurge()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var project = new CustomProjectAutoPurge(tmp);
+            project.execute(new String[]{"version"});
+
+            assertEquals("", FileUtils.generateDirectoryListing(tmp));
+
+            project = new CustomProjectAutoPurge(tmp);
+            project.enableAutoDownloadPurge();
+            project.execute(new String[]{"version"});
+
+            assertEquals("""
+                /lib
+                /lib/bld
+                /lib/bld/bld-build.hash
+                /lib/compile
+                /lib/compile/rife2-1.5.11.jar
+                /lib/runtime
+                /lib/test
+                /lib/test/apiguardian-api-1.1.2.jar
+                /lib/test/jsoup-1.15.4.jar
+                /lib/test/junit-jupiter-5.9.2.jar
+                /lib/test/junit-jupiter-api-5.9.2.jar
+                /lib/test/junit-jupiter-engine-5.9.2.jar
+                /lib/test/junit-jupiter-params-5.9.2.jar
+                /lib/test/junit-platform-commons-1.9.2.jar
+                /lib/test/junit-platform-console-standalone-1.9.2.jar
+                /lib/test/junit-platform-engine-1.9.2.jar
+                /lib/test/opentest4j-1.2.0.jar""", FileUtils.generateDirectoryListing(tmp));
+
+            FileUtils.deleteDirectory(new File(tmp, "lib/compile"));
+            FileUtils.deleteDirectory(new File(tmp, "lib/runtime"));
+            FileUtils.deleteDirectory(new File(tmp, "lib/test"));
+            assertEquals("""
+                /lib
+                /lib/bld
+                /lib/bld/bld-build.hash""", FileUtils.generateDirectoryListing(tmp));
+
+            project = new CustomProjectAutoPurge(tmp);
+            project.enableAutoDownloadPurge();
+            project.execute(new String[]{"version"});
+            assertEquals("""
+                /lib
+                /lib/bld
+                /lib/bld/bld-build.hash""", FileUtils.generateDirectoryListing(tmp));
+
+            project = new CustomProjectAutoPurge(tmp);
+            project.enableAutoDownloadPurge();
+            project.increaseRife2Version();
+            project.execute(new String[]{"version"});
+            assertEquals("""
+                /lib
+                /lib/bld
+                /lib/bld/bld-build.hash
+                /lib/compile
+                /lib/compile/rife2-1.5.12.jar
+                /lib/runtime
+                /lib/test
+                /lib/test/apiguardian-api-1.1.2.jar
+                /lib/test/jsoup-1.15.4.jar
+                /lib/test/junit-jupiter-5.9.2.jar
+                /lib/test/junit-jupiter-api-5.9.2.jar
+                /lib/test/junit-jupiter-engine-5.9.2.jar
+                /lib/test/junit-jupiter-params-5.9.2.jar
+                /lib/test/junit-platform-commons-1.9.2.jar
+                /lib/test/junit-platform-console-standalone-1.9.2.jar
+                /lib/test/junit-platform-engine-1.9.2.jar
+                /lib/test/opentest4j-1.2.0.jar""", FileUtils.generateDirectoryListing(tmp));
+
+            project = new CustomProjectAutoPurge(tmp);
+            project.enableAutoDownloadPurge();
+            project.increaseRife2VersionMore();
+            project.execute(new String[]{"version"});
+            assertEquals("""
+                /lib
+                /lib/bld
+                /lib/bld/bld-build.hash
+                /lib/compile
+                /lib/compile/rife2-1.5.15.jar
+                /lib/runtime
+                /lib/test
+                /lib/test/apiguardian-api-1.1.2.jar
+                /lib/test/jsoup-1.15.4.jar
+                /lib/test/junit-jupiter-5.9.2.jar
+                /lib/test/junit-jupiter-api-5.9.2.jar
+                /lib/test/junit-jupiter-engine-5.9.2.jar
+                /lib/test/junit-jupiter-params-5.9.2.jar
+                /lib/test/junit-platform-commons-1.9.2.jar
+                /lib/test/junit-platform-console-standalone-1.9.2.jar
+                /lib/test/junit-platform-engine-1.9.2.jar
+                /lib/test/opentest4j-1.2.0.jar""", FileUtils.generateDirectoryListing(tmp));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/TestWebProject.java b/src/test/java/rife/bld/TestWebProject.java
new file mode 100644
index 0000000..f794adc
--- /dev/null
+++ b/src/test/java/rife/bld/TestWebProject.java
@@ -0,0 +1,152 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.dependencies.VersionNumber;
+import rife.tools.FileUtils;
+
+import java.nio.file.Files;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestWebProject {
+    @Test
+    void testInstantiation() {
+        var project = new WebProject();
+
+        assertNotNull(project.workDirectory);
+        assertNotNull(project.workDirectory());
+        assertTrue(project.workDirectory().exists());
+        assertTrue(project.workDirectory().isDirectory());
+        assertNull(project.pkg);
+        assertThrows(IllegalStateException.class, project::pkg);
+        assertNull(project.name);
+        assertThrows(IllegalStateException.class, project::name);
+        assertNull(project.version);
+        assertThrows(IllegalStateException.class, project::version);
+        assertNull(project.mainClass);
+        assertThrows(IllegalStateException.class, project::mainClass);
+
+        assertNotNull(project.repositories);
+        assertTrue(project.repositories.isEmpty());
+        assertNotNull(project.dependencies);
+        assertTrue(project.dependencies.isEmpty());
+
+        assertNull(project.javaTool);
+        assertNotNull(project.javaTool());
+        assertEquals("java", project.javaTool());
+        assertNull(project.archiveBaseName);
+        assertThrows(IllegalStateException.class, project::archiveBaseName);
+        assertNull(project.jarFileName);
+        assertThrows(IllegalStateException.class, project::jarFileName);
+        assertNull(project.uberJarFileName);
+        assertThrows(IllegalStateException.class, project::uberJarFileName);
+        assertNull(project.uberJarMainClass);
+        assertThrows(IllegalStateException.class, project::uberJarMainClass);
+        assertNull(project.warFileName);
+        assertThrows(IllegalStateException.class, project::warFileName);
+
+        assertNull(project.srcDirectory);
+        assertNotNull(project.srcDirectory());
+        assertNull(project.srcBldDirectory);
+        assertNotNull(project.srcBldDirectory());
+        assertNull(project.srcBldJavaDirectory);
+        assertNotNull(project.srcBldJavaDirectory());
+        assertNull(project.srcMainDirectory);
+        assertNotNull(project.srcMainDirectory());
+        assertNull(project.srcMainJavaDirectory);
+        assertNotNull(project.srcMainJavaDirectory());
+        assertNull(project.srcMainResourcesDirectory);
+        assertNotNull(project.srcMainResourcesDirectory());
+        assertNull(project.srcMainResourcesTemplatesDirectory);
+        assertNotNull(project.srcMainResourcesTemplatesDirectory());
+        assertNull(project.srcMainWebappDirectory);
+        assertNotNull(project.srcMainWebappDirectory());
+        assertNull(project.srcTestDirectory);
+        assertNotNull(project.srcTestDirectory());
+        assertNull(project.srcTestJavaDirectory);
+        assertNotNull(project.srcTestJavaDirectory());
+        assertNotNull(project.libBldDirectory());
+        assertNull(project.libDirectory);
+        assertNotNull(project.libDirectory());
+        assertNull(project.libCompileDirectory);
+        assertNotNull(project.libCompileDirectory());
+        assertNull(project.libRuntimeDirectory);
+        assertNotNull(project.libRuntimeDirectory());
+        assertNull(project.libStandaloneDirectory);
+        assertNotNull(project.libStandaloneDirectory());
+        assertNull(project.libTestDirectory);
+        assertNotNull(project.libTestDirectory());
+        assertNull(project.buildDirectory);
+        assertNotNull(project.buildDirectory());
+        assertNull(project.buildBldDirectory);
+        assertNotNull(project.buildBldDirectory());
+        assertNull(project.buildDistDirectory);
+        assertNotNull(project.buildDistDirectory());
+        assertNull(project.buildMainDirectory);
+        assertNotNull(project.buildMainDirectory());
+        assertNull(project.buildTemplatesDirectory);
+        assertNotNull(project.buildTemplatesDirectory());
+        assertNull(project.buildTestDirectory);
+        assertNotNull(project.buildTestDirectory());
+
+        assertNotNull(project.mainSourceFiles());
+        assertNotNull(project.testSourceFiles());
+        assertNotNull(project.compileClasspathJars());
+        assertNotNull(project.runtimeClasspathJars());
+        assertNotNull(project.standaloneClasspathJars());
+        assertNotNull(project.testClasspathJars());
+
+        assertNotNull(project.compileMainClasspath());
+        assertNotNull(project.compileTestClasspath());
+        assertNotNull(project.runClasspath());
+        assertNotNull(project.testClasspath());
+    }
+
+    @Test
+    void testCustomCommand()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var result = new StringBuilder();
+            var project = new WebProject() {
+                @BuildCommand
+                public void newcommand() {
+                    result.append("newcommand");
+                }
+            };
+            project.workDirectory = tmp;
+            project.pkg = "test.pkg";
+            project.name = "my_project";
+            project.version = new VersionNumber(0, 0, 1);
+
+            project.execute(new String[]{"newcommand"});
+            assertEquals("newcommand", result.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testCustomCommandLambda()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var result = new StringBuilder();
+            var project = new WebProject();
+            project.buildCommands().put("newcommand", () -> result.append("newcommand"));
+            project.workDirectory = tmp;
+            project.pkg = "test.pkg";
+            project.name = "my_project";
+            project.version = new VersionNumber(0, 0, 1);
+
+            project.execute(new String[]{"newcommand"});
+            assertEquals("newcommand", result.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/dependencies/TestDependency.java b/src/test/java/rife/bld/dependencies/TestDependency.java
new file mode 100644
index 0000000..7de746c
--- /dev/null
+++ b/src/test/java/rife/bld/dependencies/TestDependency.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestDependency {
+    @Test
+    void testInstantiation() {
+        var dependency1 = new Dependency("com.uwyn.rife2", "rife2");
+        assertNotNull(dependency1);
+        assertEquals("com.uwyn.rife2", dependency1.groupId());
+        assertEquals("rife2", dependency1.artifactId());
+        assertEquals(VersionNumber.UNKNOWN, dependency1.version());
+        assertEquals("", dependency1.classifier());
+        assertEquals("jar", dependency1.type());
+
+        var dependency2 = new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0));
+        assertNotNull(dependency2);
+        assertEquals("com.uwyn.rife2", dependency2.groupId());
+        assertEquals("rife2", dependency2.artifactId());
+        assertEquals(new VersionNumber(1, 4, 0), dependency2.version());
+        assertEquals("", dependency2.classifier());
+        assertEquals("jar", dependency2.type());
+
+        var dependency3 = new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "agent");
+        assertNotNull(dependency3);
+        assertEquals("com.uwyn.rife2", dependency3.groupId());
+        assertEquals("rife2", dependency3.artifactId());
+        assertEquals(new VersionNumber(1, 4, 0), dependency3.version());
+        assertEquals("agent", dependency3.classifier());
+        assertEquals("jar", dependency3.type());
+
+        var dependency4 = new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "bld", "zip");
+        assertNotNull(dependency4);
+        assertEquals("com.uwyn.rife2", dependency4.groupId());
+        assertEquals("rife2", dependency4.artifactId());
+        assertEquals(new VersionNumber(1, 4, 0), dependency4.version());
+        assertEquals("bld", dependency4.classifier());
+        assertEquals("zip", dependency4.type());
+    }
+
+    @Test
+    void testBaseDependency() {
+        var dependency1 = new Dependency("com.uwyn.rife2", "rife2");
+        assertEquals(dependency1, dependency1.baseDependency());
+
+        var dependency2 = new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0));
+        assertEquals(dependency2, dependency1.baseDependency());
+
+        var dependency3 = new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "agent");
+        assertNotEquals(dependency3, dependency1.baseDependency());
+
+        var dependency4 = new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "bld", "zip");
+        assertNotEquals(dependency4, dependency1.baseDependency());
+    }
+
+    @Test
+    void testWithClassifier() {
+        var dependency1 = new Dependency("com.uwyn.rife2", "rife2");
+        assertEquals(new Dependency("com.uwyn.rife2", "rife2", VersionNumber.UNKNOWN, "sources"), dependency1.withClassifier("sources"));
+
+        var dependency2 = new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0));
+        assertEquals(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "sources"), dependency2.withClassifier("sources"));
+
+        var dependency3 = new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "agent");
+        assertEquals(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "sources"), dependency3.withClassifier("sources"));
+
+        var dependency4 = new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "bld", "zip");
+        assertEquals(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "sources", "zip"), dependency4.withClassifier("sources"));
+    }
+
+    @Test
+    void testToString() {
+        assertEquals("com.uwyn.rife2:rife2", new Dependency("com.uwyn.rife2", "rife2").toString());
+        assertEquals("com.uwyn.rife2:rife2:1.4.0", new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0)).toString());
+        assertEquals("com.uwyn.rife2:rife2:1.4.0:agent", new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "agent").toString());
+        assertEquals("com.uwyn.rife2:rife2:1.4.0:bld@zip", new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "bld", "zip").toString());
+    }
+
+    @Test
+    void testToFileName() {
+        assertEquals("rife2-0.0.0.jar", new Dependency("com.uwyn.rife2", "rife2").toFileName());
+        assertEquals("rife2-1.4.0.jar", new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0)).toFileName());
+        assertEquals("rife2-1.4.0-agent.jar", new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "agent").toFileName());
+        assertEquals("rife2-1.4.0-bld.zip", new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "bld", "zip").toFileName());
+    }
+
+    @Test
+    void testToParse() {
+        assertEquals("com.uwyn.rife2:rife2", Dependency.parse("com.uwyn.rife2:rife2").toString());
+        assertEquals("com.uwyn.rife2:rife2:1.4.0", Dependency.parse("com.uwyn.rife2:rife2:1.4.0").toString());
+        assertEquals("com.uwyn.rife2:rife2:1.4.0:agent", Dependency.parse("com.uwyn.rife2:rife2:1.4.0:agent").toString());
+        assertEquals("com.uwyn.rife2:rife2:1.4.0:agent@zip", Dependency.parse("com.uwyn.rife2:rife2:1.4.0:agent@zip").toString());
+        assertEquals("com.uwyn.rife2:rife2@zip", Dependency.parse("com.uwyn.rife2:rife2@zip").toString());
+        assertEquals("com.uwyn.rife2:rife2:1.4.0@zip", Dependency.parse("com.uwyn.rife2:rife2:1.4.0@zip").toString());
+
+        assertEquals(new Dependency("com.uwyn.rife2", "rife2").toString(), Dependency.parse("com.uwyn.rife2:rife2").toString());
+        assertEquals(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0)).toString(), Dependency.parse("com.uwyn.rife2:rife2:1.4.0").toString());
+        assertEquals(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "agent").toString(), Dependency.parse("com.uwyn.rife2:rife2:1.4.0:agent").toString());
+        assertEquals(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), "agent", "zip").toString(), Dependency.parse("com.uwyn.rife2:rife2:1.4.0:agent@zip").toString());
+        assertEquals(new Dependency("com.uwyn.rife2", "rife2", null, null, "zip").toString(), Dependency.parse("com.uwyn.rife2:rife2@zip").toString());
+        assertEquals(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0), null, "zip").toString(), Dependency.parse("com.uwyn.rife2:rife2:1.4.0@zip").toString());
+    }
+}
diff --git a/src/test/java/rife/bld/dependencies/TestDependencyResolver.java b/src/test/java/rife/bld/dependencies/TestDependencyResolver.java
new file mode 100644
index 0000000..93061c4
--- /dev/null
+++ b/src/test/java/rife/bld/dependencies/TestDependencyResolver.java
@@ -0,0 +1,1436 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import org.junit.jupiter.api.Test;
+import rife.tools.FileUtils;
+import rife.tools.StringUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static rife.bld.dependencies.Dependency.CLASSIFIER_JAVADOC;
+import static rife.bld.dependencies.Dependency.CLASSIFIER_SOURCES;
+import static rife.bld.dependencies.Repository.*;
+import static rife.bld.dependencies.Scope.compile;
+import static rife.bld.dependencies.Scope.runtime;
+
+public class TestDependencyResolver {
+    @Test
+    void testInstantiation() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0)));
+        assertNotNull(resolver);
+        assertTrue(resolver.repositories().contains(MAVEN_CENTRAL));
+        assertTrue(resolver.repositories().contains(SONATYPE_SNAPSHOTS));
+        assertEquals(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0)), resolver.dependency());
+    }
+
+    @Test
+    void testNotFound() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.org.unknown", "voidthing"));
+        assertFalse(resolver.exists());
+    }
+
+    @Test
+    void testCheckExistence() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2"));
+        assertTrue(resolver.exists());
+    }
+
+    @Test
+    void testCheckExistenceVersion() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0)));
+        assertTrue(resolver.exists());
+    }
+
+    @Test
+    void testCheckExistenceMissingVersion() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 3, 9)));
+        assertFalse(resolver.exists());
+    }
+
+    @Test
+    void testListVersions() {
+        var resolver1 = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2"));
+        var versions1 = resolver1.listVersions();
+        assertNotNull(versions1);
+        assertFalse(versions1.isEmpty());
+        assertFalse(versions1.contains(VersionNumber.UNKNOWN));
+        assertTrue(versions1.contains(new VersionNumber(1, 0, 0)));
+        assertTrue(versions1.contains(new VersionNumber(1, 2, 1)));
+
+        var resolver2 = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.eclipse.jetty", "jetty-server"));
+        var versions2 = resolver2.listVersions();
+        assertNotNull(versions2);
+        assertFalse(versions2.isEmpty());
+        assertFalse(versions2.contains(VersionNumber.UNKNOWN));
+        assertTrue(versions2.contains(new VersionNumber(9, 4, 51, "v20230217")));
+        assertTrue(versions2.contains(new VersionNumber(11, 0, 14)));
+    }
+
+    @Test
+    void testGetLatestVersion() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2"));
+        var version = resolver.latestVersion();
+        assertNotNull(version);
+        assertTrue(version.compareTo(new VersionNumber(1, 4)) >= 0);
+    }
+
+    @Test
+    void testGetReleaseVersion() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2"));
+        var version = resolver.releaseVersion();
+        assertNotNull(version);
+        assertTrue(version.compareTo(new VersionNumber(1, 4)) >= 0);
+    }
+
+    @Test
+    void testMetadata() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0)));
+        var metadata = resolver.getMavenMetadata();
+        assertNotNull(metadata);
+        assertTrue(metadata.getLatest().compareTo(resolver.dependency().version()) > 0);
+        assertNull(resolver.getSnapshotMavenMetadata());
+    }
+
+    @Test
+    void testSnapshotMetadata() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0, "SNAPSHOT")));
+        var metadata = resolver.getSnapshotMavenMetadata();
+        assertNotNull(metadata);
+        assertEquals("20230303.130437", metadata.getSnapshotTimestamp());
+        assertEquals(4, metadata.getSnapshotBuildNumber());
+    }
+
+    @Test
+    void testGetCompileDependenciesRIFE2() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2"));
+        var dependencies = resolver.getDirectDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(0, dependencies.size());
+    }
+
+    @Test
+    void testGetCompileDependenciesRIFE2Snapshot() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0, "SNAPSHOT")));
+        var dependencies = resolver.getDirectDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(0, dependencies.size());
+    }
+
+    @Test
+    void testGetCompileDependenciesJetty() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14)));
+        var dependencies = resolver.getDirectDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(4, dependencies.size());
+        assertEquals("""
+            org.eclipse.jetty.toolchain:jetty-jakarta-servlet-api:5.0.2
+            org.eclipse.jetty:jetty-http:11.0.14
+            org.eclipse.jetty:jetty-io:11.0.14
+            org.slf4j:slf4j-api:2.0.5""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileRuntimeDependenciesJunit() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.junit.jupiter", "junit-jupiter", new VersionNumber(5, 9, 2)));
+        var dependencies_compile = resolver.getDirectDependencies(compile, runtime);
+        assertNotNull(dependencies_compile);
+        assertEquals(3, dependencies_compile.size());
+        assertEquals("""
+            org.junit.jupiter:junit-jupiter-api:5.9.2
+            org.junit.jupiter:junit-jupiter-params:5.9.2
+            org.junit.jupiter:junit-jupiter-engine:5.9.2""", StringUtils.join(dependencies_compile, "\n"));
+    }
+
+    @Test
+    void testGetCompileDependenciesSpringBoot() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.springframework.boot", "spring-boot-starter", new VersionNumber(3, 0, 4)));
+        var dependencies = resolver.getDirectDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(6, dependencies.size());
+        assertEquals("""
+            org.springframework.boot:spring-boot:3.0.4
+            org.springframework.boot:spring-boot-autoconfigure:3.0.4
+            org.springframework.boot:spring-boot-starter-logging:3.0.4
+            jakarta.annotation:jakarta.annotation-api:2.1.1
+            org.springframework:spring-core:6.0.6
+            org.yaml:snakeyaml:1.33""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileDependenciesMaven() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.apache.maven", "maven-core", new VersionNumber(3, 9, 0)));
+        var dependencies = resolver.getDirectDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(26, dependencies.size());
+        assertEquals("""
+            org.apache.maven:maven-model:3.9.0
+            org.apache.maven:maven-settings:3.9.0
+            org.apache.maven:maven-settings-builder:3.9.0
+            org.apache.maven:maven-builder-support:3.9.0
+            org.apache.maven:maven-repository-metadata:3.9.0
+            org.apache.maven:maven-artifact:3.9.0
+            org.apache.maven:maven-plugin-api:3.9.0
+            org.apache.maven:maven-model-builder:3.9.0
+            org.apache.maven:maven-resolver-provider:3.9.0
+            org.apache.maven.resolver:maven-resolver-impl:1.9.4
+            org.apache.maven.resolver:maven-resolver-api:1.9.4
+            org.apache.maven.resolver:maven-resolver-spi:1.9.4
+            org.apache.maven.resolver:maven-resolver-util:1.9.4
+            org.apache.maven.shared:maven-shared-utils:3.3.4
+            org.eclipse.sisu:org.eclipse.sisu.plexus:0.3.5
+            org.eclipse.sisu:org.eclipse.sisu.inject:0.3.5
+            com.google.inject:guice:5.1.0
+            com.google.guava:guava:30.1-jre
+            com.google.guava:failureaccess:1.0.1
+            javax.inject:javax.inject:1
+            org.codehaus.plexus:plexus-utils:3.4.2
+            org.codehaus.plexus:plexus-classworlds:2.6.0
+            org.codehaus.plexus:plexus-interpolation:1.26
+            org.codehaus.plexus:plexus-component-annotations:2.1.0
+            org.apache.commons:commons-lang3:3.8.1
+            org.slf4j:slf4j-api:1.7.36""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileDependenciesPlay() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.typesafe.play", "play_2.13", new VersionNumber(2, 8, 19)));
+        var dependencies = resolver.getDirectDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(25, dependencies.size());
+        assertEquals("""
+            org.scala-lang:scala-library:2.13.10
+            com.typesafe.play:build-link:2.8.19
+            com.typesafe.play:play-streams_2.13:2.8.19
+            com.typesafe.play:twirl-api_2.13:1.5.1
+            org.slf4j:slf4j-api:1.7.36
+            org.slf4j:jul-to-slf4j:1.7.36
+            org.slf4j:jcl-over-slf4j:1.7.36
+            com.typesafe.akka:akka-actor_2.13:2.6.20
+            com.typesafe.akka:akka-actor-typed_2.13:2.6.20
+            com.typesafe.akka:akka-slf4j_2.13:2.6.20
+            com.typesafe.akka:akka-serialization-jackson_2.13:2.6.20
+            com.fasterxml.jackson.core:jackson-core:2.11.4
+            com.fasterxml.jackson.core:jackson-annotations:2.11.4
+            com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.11.4
+            com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.11.4
+            com.fasterxml.jackson.core:jackson-databind:2.11.4
+            com.typesafe.play:play-json_2.13:2.8.2
+            com.google.guava:guava:30.1.1-jre
+            io.jsonwebtoken:jjwt:0.9.1
+            jakarta.xml.bind:jakarta.xml.bind-api:2.3.3
+            jakarta.transaction:jakarta.transaction-api:1.3.3
+            javax.inject:javax.inject:1
+            org.scala-lang.modules:scala-java8-compat_2.13:1.0.2
+            com.typesafe:ssl-config-core_2.13:0.4.3
+            org.scala-lang.modules:scala-parser-combinators_2.13:1.1.2""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileDependenciesVaadin() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.vaadin", "vaadin", new VersionNumber(23, 3, 7)));
+        var dependencies = resolver.getDirectDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(9, dependencies.size());
+        assertEquals("""
+            com.vaadin:vaadin-core:23.3.7
+            com.vaadin:vaadin-board-flow:23.3.7
+            com.vaadin:vaadin-charts-flow:23.3.7
+            com.vaadin:vaadin-cookie-consent-flow:23.3.7
+            com.vaadin:vaadin-crud-flow:23.3.7
+            com.vaadin:vaadin-grid-pro-flow:23.3.7
+            com.vaadin:vaadin-map-flow:23.3.7
+            com.vaadin:vaadin-rich-text-editor-flow:23.3.7
+            com.vaadin:collaboration-engine:5.3.0""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileRuntimeDependenciesBitly() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS_LEGACY), new Dependency("net.thauvin.erik", "bitly-shorten", new VersionNumber(0, 9, 4, "SNAPSHOT")));
+        var dependencies = resolver.getDirectDependencies(compile, runtime);
+        assertNotNull(dependencies);
+        assertEquals(4, dependencies.size());
+        assertEquals("""
+            org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.8.20
+            com.squareup.okhttp3:okhttp:4.10.0
+            com.squareup.okhttp3:logging-interceptor:4.10.0
+            org.json:json:20230227""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileTransitiveDependenciesRIFE2() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2"));
+        var dependencies = resolver.getAllDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(1, dependencies.size());
+        assertEquals("""
+            com.uwyn.rife2:rife2""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileTransitiveDependenciesRIFE2Snapshot() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0, "SNAPSHOT")));
+        var dependencies = resolver.getAllDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(1, dependencies.size());
+        assertEquals("""
+            com.uwyn.rife2:rife2:1.4.0-SNAPSHOT""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileTransitiveDependenciesJetty() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14)));
+        var dependencies = resolver.getAllDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(6, dependencies.size());
+        assertEquals("""
+            org.eclipse.jetty:jetty-server:11.0.14
+            org.eclipse.jetty.toolchain:jetty-jakarta-servlet-api:5.0.2
+            org.eclipse.jetty:jetty-http:11.0.14
+            org.eclipse.jetty:jetty-io:11.0.14
+            org.slf4j:slf4j-api:2.0.5
+            org.eclipse.jetty:jetty-util:11.0.14""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileTransitiveDependenciesJettyExclusion() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS),
+            new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14))
+                .exclude("org.slf4j", "slf4j-api"));
+        var dependencies = resolver.getAllDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(5, dependencies.size());
+        assertEquals("""
+            org.eclipse.jetty:jetty-server:11.0.14
+            org.eclipse.jetty.toolchain:jetty-jakarta-servlet-api:5.0.2
+            org.eclipse.jetty:jetty-http:11.0.14
+            org.eclipse.jetty:jetty-io:11.0.14
+            org.eclipse.jetty:jetty-util:11.0.14""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileTransitiveDependenciesJettyFullGroupExclusion() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS),
+            new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14))
+                .exclude("org.eclipse.jetty", "*"));
+        var dependencies = resolver.getAllDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(3, dependencies.size());
+        assertEquals("""
+            org.eclipse.jetty:jetty-server:11.0.14
+            org.eclipse.jetty.toolchain:jetty-jakarta-servlet-api:5.0.2
+            org.slf4j:slf4j-api:2.0.5""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileTransitiveDependenciesJettyFullArtifactExclusion() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS),
+            new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14))
+                .exclude("*", "jetty-http")
+                .exclude("*", "slf4j-api"));
+        var dependencies = resolver.getAllDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(4, dependencies.size());
+        assertEquals("""
+            org.eclipse.jetty:jetty-server:11.0.14
+            org.eclipse.jetty.toolchain:jetty-jakarta-servlet-api:5.0.2
+            org.eclipse.jetty:jetty-io:11.0.14
+            org.eclipse.jetty:jetty-util:11.0.14""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileTransitiveDependenciesJettyFullExclusion() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS),
+            new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14))
+                .exclude("*", "*"));
+        var dependencies = resolver.getAllDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(1, dependencies.size());
+        assertEquals("""
+            org.eclipse.jetty:jetty-server:11.0.14""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileTransitiveDependenciesJettyAndSlfj() {
+        var dependencies = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14))).getAllDependencies(compile);
+        var dependencies2 = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 6))).getAllDependencies(compile, runtime);
+        assertNotNull(dependencies);
+        assertNotNull(dependencies2);
+        assertEquals(6, dependencies.size());
+        assertEquals(2, dependencies2.size());
+        dependencies.addAll(dependencies2);
+        assertEquals(7, dependencies.size());
+        assertEquals("""
+            org.eclipse.jetty:jetty-server:11.0.14
+            org.eclipse.jetty.toolchain:jetty-jakarta-servlet-api:5.0.2
+            org.eclipse.jetty:jetty-http:11.0.14
+            org.eclipse.jetty:jetty-io:11.0.14
+            org.eclipse.jetty:jetty-util:11.0.14
+            org.slf4j:slf4j-simple:2.0.6
+            org.slf4j:slf4j-api:2.0.6""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileRuntimeTransitiveDependenciesJunit() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.junit.jupiter", "junit-jupiter", new VersionNumber(5, 9, 2)));
+        var dependencies_compile = resolver.getAllDependencies(compile, runtime);
+        assertNotNull(dependencies_compile);
+        assertEquals(8, dependencies_compile.size());
+        assertEquals("""
+            org.junit.jupiter:junit-jupiter:5.9.2
+            org.junit.jupiter:junit-jupiter-api:5.9.2
+            org.junit.jupiter:junit-jupiter-params:5.9.2
+            org.junit.jupiter:junit-jupiter-engine:5.9.2
+            org.opentest4j:opentest4j:1.2.0
+            org.junit.platform:junit-platform-commons:1.9.2
+            org.apiguardian:apiguardian-api:1.1.2
+            org.junit.platform:junit-platform-engine:1.9.2""", StringUtils.join(dependencies_compile, "\n"));
+        var dependencies_runtime = resolver.getAllDependencies(runtime);
+        assertNotNull(dependencies_runtime);
+        assertEquals(2, dependencies_runtime.size());
+        assertEquals("""
+            org.junit.jupiter:junit-jupiter:5.9.2
+            org.junit.jupiter:junit-jupiter-engine:5.9.2""", StringUtils.join(dependencies_runtime, "\n"));
+    }
+
+    @Test
+    void testGetCompileTransitiveDependenciesSpringBoot() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.springframework.boot", "spring-boot-starter", new VersionNumber(3, 0, 4)));
+        var dependencies = resolver.getAllDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(18, dependencies.size());
+        assertEquals("""
+            org.springframework.boot:spring-boot-starter:3.0.4
+            org.springframework.boot:spring-boot:3.0.4
+            org.springframework.boot:spring-boot-autoconfigure:3.0.4
+            org.springframework.boot:spring-boot-starter-logging:3.0.4
+            jakarta.annotation:jakarta.annotation-api:2.1.1
+            org.springframework:spring-core:6.0.6
+            org.yaml:snakeyaml:1.33
+            org.springframework:spring-context:6.0.6
+            ch.qos.logback:logback-classic:1.4.5
+            org.apache.logging.log4j:log4j-to-slf4j:2.19.0
+            org.slf4j:jul-to-slf4j:2.0.6
+            org.springframework:spring-jcl:6.0.6
+            org.springframework:spring-aop:6.0.6
+            org.springframework:spring-beans:6.0.6
+            org.springframework:spring-expression:6.0.6
+            ch.qos.logback:logback-core:1.4.5
+            org.slf4j:slf4j-api:2.0.4
+            org.apache.logging.log4j:log4j-api:2.19.0""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileTransitiveDependenciesMaven() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.apache.maven", "maven-core", new VersionNumber(3, 9, 0)));
+        var dependencies = resolver.getAllDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(32, dependencies.size());
+        assertEquals("""
+            org.apache.maven:maven-core:3.9.0
+            org.apache.maven:maven-model:3.9.0
+            org.apache.maven:maven-settings:3.9.0
+            org.apache.maven:maven-settings-builder:3.9.0
+            org.apache.maven:maven-builder-support:3.9.0
+            org.apache.maven:maven-repository-metadata:3.9.0
+            org.apache.maven:maven-artifact:3.9.0
+            org.apache.maven:maven-plugin-api:3.9.0
+            org.apache.maven:maven-model-builder:3.9.0
+            org.apache.maven:maven-resolver-provider:3.9.0
+            org.apache.maven.resolver:maven-resolver-impl:1.9.4
+            org.apache.maven.resolver:maven-resolver-api:1.9.4
+            org.apache.maven.resolver:maven-resolver-spi:1.9.4
+            org.apache.maven.resolver:maven-resolver-util:1.9.4
+            org.apache.maven.shared:maven-shared-utils:3.3.4
+            org.eclipse.sisu:org.eclipse.sisu.plexus:0.3.5
+            org.eclipse.sisu:org.eclipse.sisu.inject:0.3.5
+            com.google.inject:guice:5.1.0
+            com.google.guava:guava:30.1-jre
+            com.google.guava:failureaccess:1.0.1
+            javax.inject:javax.inject:1
+            org.codehaus.plexus:plexus-utils:3.4.2
+            org.codehaus.plexus:plexus-classworlds:2.6.0
+            org.codehaus.plexus:plexus-interpolation:1.26
+            org.codehaus.plexus:plexus-component-annotations:2.1.0
+            org.apache.commons:commons-lang3:3.8.1
+            org.slf4j:slf4j-api:1.7.36
+            org.codehaus.plexus:plexus-sec-dispatcher:2.0
+            org.apache.maven.resolver:maven-resolver-named-locks:1.9.4
+            javax.annotation:javax.annotation-api:1.2
+            aopalliance:aopalliance:1.0
+            org.codehaus.plexus:plexus-cipher:2.0""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileTransitiveDependenciesPlay() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.typesafe.play", "play_2.13", new VersionNumber(2, 8, 19)));
+        var dependencies = resolver.getAllDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(48, dependencies.size());
+        assertEquals("""
+            com.typesafe.play:play_2.13:2.8.19
+            org.scala-lang:scala-library:2.13.10
+            com.typesafe.play:build-link:2.8.19
+            com.typesafe.play:play-streams_2.13:2.8.19
+            com.typesafe.play:twirl-api_2.13:1.5.1
+            org.slf4j:slf4j-api:1.7.36
+            org.slf4j:jul-to-slf4j:1.7.36
+            org.slf4j:jcl-over-slf4j:1.7.36
+            com.typesafe.akka:akka-actor_2.13:2.6.20
+            com.typesafe.akka:akka-actor-typed_2.13:2.6.20
+            com.typesafe.akka:akka-slf4j_2.13:2.6.20
+            com.typesafe.akka:akka-serialization-jackson_2.13:2.6.20
+            com.fasterxml.jackson.core:jackson-core:2.11.4
+            com.fasterxml.jackson.core:jackson-annotations:2.11.4
+            com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.11.4
+            com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.11.4
+            com.fasterxml.jackson.core:jackson-databind:2.11.4
+            com.typesafe.play:play-json_2.13:2.8.2
+            com.google.guava:guava:30.1.1-jre
+            io.jsonwebtoken:jjwt:0.9.1
+            jakarta.xml.bind:jakarta.xml.bind-api:2.3.3
+            jakarta.transaction:jakarta.transaction-api:1.3.3
+            javax.inject:javax.inject:1
+            org.scala-lang.modules:scala-java8-compat_2.13:1.0.2
+            com.typesafe:ssl-config-core_2.13:0.4.3
+            org.scala-lang.modules:scala-parser-combinators_2.13:1.1.2
+            com.typesafe.play:play-exceptions:2.8.19
+            org.reactivestreams:reactive-streams:1.0.3
+            com.typesafe.akka:akka-stream_2.13:2.6.20
+            org.scala-lang.modules:scala-xml_2.13:1.2.0
+            com.typesafe:config:1.4.2
+            com.fasterxml.jackson.module:jackson-module-parameter-names:2.11.4
+            com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:2.11.4
+            com.fasterxml.jackson.module:jackson-module-scala_2.13:2.11.4
+            org.lz4:lz4-java:1.8.0
+            com.typesafe.play:play-functional_2.13:2.8.2
+            org.scala-lang:scala-reflect:2.13.1
+            joda-time:joda-time:2.10.5
+            com.google.guava:failureaccess:1.0.1
+            com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava
+            com.google.code.findbugs:jsr305:3.0.2
+            org.checkerframework:checker-qual:3.8.0
+            com.google.errorprone:error_prone_annotations:2.5.1
+            com.google.j2objc:j2objc-annotations:1.3
+            jakarta.activation:jakarta.activation-api:1.2.2
+            com.typesafe.akka:akka-protobuf-v3_2.13:2.6.20
+            com.fasterxml.jackson.module:jackson-module-paranamer:2.11.4
+            com.thoughtworks.paranamer:paranamer:2.8""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileTransitiveDependenciesVaadin() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.vaadin", "vaadin", new VersionNumber(23, 3, 7)));
+        var dependencies = resolver.getAllDependencies(compile);
+        assertNotNull(dependencies);
+        assertEquals(88, dependencies.size());
+        assertEquals("""
+            com.vaadin:vaadin:23.3.7
+            com.vaadin:vaadin-core:23.3.7
+            com.vaadin:vaadin-board-flow:23.3.7
+            com.vaadin:vaadin-charts-flow:23.3.7
+            com.vaadin:vaadin-cookie-consent-flow:23.3.7
+            com.vaadin:vaadin-crud-flow:23.3.7
+            com.vaadin:vaadin-grid-pro-flow:23.3.7
+            com.vaadin:vaadin-map-flow:23.3.7
+            com.vaadin:vaadin-rich-text-editor-flow:23.3.7
+            com.vaadin:collaboration-engine:5.3.0
+            com.vaadin:flow-server:23.3.4
+            com.vaadin:vaadin-dev-server:23.3.4
+            com.vaadin:flow-lit-template:23.3.4
+            com.vaadin:flow-polymer-template:23.3.4
+            com.vaadin:flow-push:23.3.4
+            com.vaadin:flow-client:23.3.4
+            com.vaadin:flow-html-components:23.3.4
+            com.vaadin:flow-data:23.3.4
+            com.vaadin:flow-dnd:23.3.4
+            com.vaadin:vaadin-lumo-theme:23.3.7
+            com.vaadin:vaadin-material-theme:23.3.7
+            com.vaadin:vaadin-accordion-flow:23.3.7
+            com.vaadin:vaadin-avatar-flow:23.3.7
+            com.vaadin:vaadin-button-flow:23.3.7
+            com.vaadin:vaadin-checkbox-flow:23.3.7
+            com.vaadin:vaadin-combo-box-flow:23.3.7
+            com.vaadin:vaadin-confirm-dialog-flow:23.3.7
+            com.vaadin:vaadin-custom-field-flow:23.3.7
+            com.vaadin:vaadin-date-picker-flow:23.3.7
+            com.vaadin:vaadin-date-time-picker-flow:23.3.7
+            com.vaadin:vaadin-details-flow:23.3.7
+            com.vaadin:vaadin-time-picker-flow:23.3.7
+            com.vaadin:vaadin-select-flow:23.3.7
+            com.vaadin:vaadin-dialog-flow:23.3.7
+            com.vaadin:vaadin-form-layout-flow:23.3.7
+            com.vaadin:vaadin-field-highlighter-flow:23.3.7
+            com.vaadin:vaadin-grid-flow:23.3.7
+            com.vaadin:vaadin-icons-flow:23.3.7
+            com.vaadin:vaadin-iron-list-flow:23.3.7
+            com.vaadin:vaadin-virtual-list-flow:23.3.7
+            com.vaadin:vaadin-list-box-flow:23.3.7
+            com.vaadin:vaadin-login-flow:23.3.7
+            com.vaadin:vaadin-messages-flow:23.3.7
+            com.vaadin:vaadin-ordered-layout-flow:23.3.7
+            com.vaadin:vaadin-progress-bar-flow:23.3.7
+            com.vaadin:vaadin-radio-button-flow:23.3.7
+            com.vaadin:vaadin-renderer-flow:23.3.7
+            com.vaadin:vaadin-split-layout-flow:23.3.7
+            com.vaadin:vaadin-tabs-flow:23.3.7
+            com.vaadin:vaadin-text-field-flow:23.3.7
+            com.vaadin:vaadin-upload-flow:23.3.7
+            com.vaadin:vaadin-notification-flow:23.3.7
+            com.vaadin:vaadin-app-layout-flow:23.3.7
+            com.vaadin:vaadin-context-menu-flow:23.3.7
+            com.vaadin:vaadin-menu-bar-flow:23.3.7
+            com.fasterxml.jackson.core:jackson-databind:2.14.1
+            com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.14.1
+            com.vaadin:license-checker:1.5.1
+            com.vaadin.servletdetector:throw-if-servlet5:1.0.2
+            org.slf4j:slf4j-api:1.7.36
+            javax.annotation:javax.annotation-api:1.3.2
+            com.vaadin.external.gwt:gwt-elemental:2.8.2.vaadin2
+            commons-fileupload:commons-fileupload:1.4
+            commons-io:commons-io:2.11.0
+            com.fasterxml.jackson.core:jackson-core:2.14.1
+            org.jsoup:jsoup:1.15.3
+            com.helger:ph-css:6.5.0
+            net.bytebuddy:byte-buddy:1.12.20
+            com.vaadin.external:gentyref:1.2.0.vaadin1
+            org.apache.commons:commons-compress:1.22
+            org.apache.httpcomponents:httpclient:4.5.13
+            commons-codec:commons-codec:1.15
+            com.vaadin:open:8.5.0
+            com.vaadin.external.atmosphere:atmosphere-runtime:2.7.3.slf4jvaadin4
+            javax.validation:validation-api:2.0.1.Final
+            org.webjars.npm:vaadin__vaadin-mobile-drag-drop:1.0.1
+            org.webjars.npm:mobile-drag-drop:2.3.0-rc.2
+            com.vaadin:vaadin-flow-components-base:23.3.7
+            org.apache.commons:commons-lang3:3.12.0
+            com.fasterxml.jackson.core:jackson-annotations:2.14.1
+            com.github.oshi:oshi-core:6.1.6
+            com.auth0:java-jwt:3.19.2
+            com.helger.commons:ph-commons:10.1.6
+            org.apache.httpcomponents:httpcore:4.4.13
+            commons-logging:commons-logging:1.2
+            net.java.dev.jna:jna:5.11.0
+            net.java.dev.jna:jna-platform:5.11.0
+            com.google.code.findbugs:jsr305:3.0.2""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileRuntimeTransitiveDependenciesBitly() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS_LEGACY), new Dependency("net.thauvin.erik", "bitly-shorten", new VersionNumber(0, 9, 4, "SNAPSHOT")));
+        var dependencies = resolver.getAllDependencies(compile, runtime);
+        assertNotNull(dependencies);
+        assertEquals(10, dependencies.size());
+        assertEquals("""
+            net.thauvin.erik:bitly-shorten:0.9.4-SNAPSHOT
+            org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.8.20
+            com.squareup.okhttp3:okhttp:4.10.0
+            com.squareup.okhttp3:logging-interceptor:4.10.0
+            org.json:json:20230227
+            org.jetbrains.kotlin:kotlin-stdlib:1.8.20
+            org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.8.20
+            com.squareup.okio:okio-jvm:3.0.0
+            org.jetbrains.kotlin:kotlin-stdlib-common:1.8.20
+            org.jetbrains:annotations:13.0""", StringUtils.join(dependencies, "\n"));
+    }
+
+    @Test
+    void testGetCompileRuntimeTransitiveDependenciesMariaDb() {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.mariadb.jdbc", "mariadb-java-client", new VersionNumber(3, 1, 3)));
+        var dependencies_compile = resolver.getAllDependencies(compile, runtime);
+        assertNotNull(dependencies_compile);
+        assertEquals(9, dependencies_compile.size());
+        assertEquals("""
+            org.mariadb.jdbc:mariadb-java-client:3.1.3
+            com.github.waffle:waffle-jna:3.2.0
+            net.java.dev.jna:jna:5.12.1
+            net.java.dev.jna:jna-platform:5.12.1
+            org.slf4j:jcl-over-slf4j:1.7.36
+            org.slf4j:slf4j-api:1.7.36
+            com.github.ben-manes.caffeine:caffeine:2.9.3
+            org.checkerframework:checker-qual:3.23.0
+            com.google.errorprone:error_prone_annotations:2.10.0""", StringUtils.join(dependencies_compile, "\n"));
+        var dependencies_runtime = resolver.getAllDependencies(runtime);
+        assertNotNull(dependencies_runtime);
+        assertEquals(1, dependencies_runtime.size());
+        assertEquals("""
+            org.mariadb.jdbc:mariadb-java-client:3.1.3""", StringUtils.join(dependencies_runtime, "\n"));
+    }
+
+    @Test
+    void testTransferDependency()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2"));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp);
+            assertTrue(StringUtils.join(result, "\n").matches("""
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/uwyn/rife2/rife2/.*/rife2-.*.jar"""));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(1, files.size());
+            assertTrue(files.get(0).matches("rife2-.+\\.jar"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependencySources()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2"));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp, CLASSIFIER_SOURCES);
+            assertTrue(StringUtils.join(result, "\n").matches("""
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/uwyn/rife2/rife2/.*/rife2-.*.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/uwyn/rife2/rife2/.*/rife2-.*-sources.jar"""));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(2, files.size());
+            assertTrue(files.get(0).matches("rife2-.+\\.jar"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependencySourcesJavadoc()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2"));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp, CLASSIFIER_SOURCES, CLASSIFIER_JAVADOC);
+            assertTrue(StringUtils.join(result, "\n").matches("""
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/uwyn/rife2/rife2/.*/rife2-.*.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/uwyn/rife2/rife2/.*/rife2-.*-sources.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/uwyn/rife2/rife2/.*/rife2-.*-javadoc.jar"""));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(3, files.size());
+            assertTrue(files.get(0).matches("rife2-.+\\.jar"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependencySnapshot()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0, "SNAPSHOT")));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp);
+            assertEquals("""
+                https://s01.oss.sonatype.org/content/repositories/snapshots/:https://s01.oss.sonatype.org/content/repositories/snapshots/com/uwyn/rife2/rife2/1.4.0-SNAPSHOT/rife2-1.4.0-20230303.130437-4.jar""", StringUtils.join(result, "\n"));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(1, files.size());
+            assertTrue(files.contains("rife2-1.4.0-20230303.130437-4.jar"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependencySnapshotSources()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0, "SNAPSHOT")));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp, CLASSIFIER_SOURCES);
+            assertEquals("""
+                https://s01.oss.sonatype.org/content/repositories/snapshots/:https://s01.oss.sonatype.org/content/repositories/snapshots/com/uwyn/rife2/rife2/1.4.0-SNAPSHOT/rife2-1.4.0-20230303.130437-4.jar
+                https://s01.oss.sonatype.org/content/repositories/snapshots/:https://s01.oss.sonatype.org/content/repositories/snapshots/com/uwyn/rife2/rife2/1.4.0-SNAPSHOT/rife2-1.4.0-20230303.130437-4-sources.jar""", StringUtils.join(result, "\n"));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(2, files.size());
+            assertTrue(files.contains("rife2-1.4.0-20230303.130437-4.jar"));
+            assertTrue(files.contains("rife2-1.4.0-20230303.130437-4-sources.jar"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependencySnapshotSourcesJavadoc()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0, "SNAPSHOT")));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp, CLASSIFIER_SOURCES, CLASSIFIER_JAVADOC);
+            assertEquals("""
+                https://s01.oss.sonatype.org/content/repositories/snapshots/:https://s01.oss.sonatype.org/content/repositories/snapshots/com/uwyn/rife2/rife2/1.4.0-SNAPSHOT/rife2-1.4.0-20230303.130437-4.jar
+                https://s01.oss.sonatype.org/content/repositories/snapshots/:https://s01.oss.sonatype.org/content/repositories/snapshots/com/uwyn/rife2/rife2/1.4.0-SNAPSHOT/rife2-1.4.0-20230303.130437-4-sources.jar
+                https://s01.oss.sonatype.org/content/repositories/snapshots/:https://s01.oss.sonatype.org/content/repositories/snapshots/com/uwyn/rife2/rife2/1.4.0-SNAPSHOT/rife2-1.4.0-20230303.130437-4-javadoc.jar""", StringUtils.join(result, "\n"));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(3, files.size());
+            assertTrue(files.contains("rife2-1.4.0-20230303.130437-4.jar"));
+            assertTrue(files.contains("rife2-1.4.0-20230303.130437-4-javadoc.jar"));
+            assertTrue(files.contains("rife2-1.4.0-20230303.130437-4-sources.jar"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependencyJetty()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14)));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp);
+            assertEquals("""
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-server/11.0.14/jetty-server-11.0.14.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/toolchain/jetty-jakarta-servlet-api/5.0.2/jetty-jakarta-servlet-api-5.0.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-http/11.0.14/jetty-http-11.0.14.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-io/11.0.14/jetty-io-11.0.14.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/slf4j-api/2.0.5/slf4j-api-2.0.5.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-util/11.0.14/jetty-util-11.0.14.jar""", StringUtils.join(result, "\n"));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(6, files.size());
+            Collections.sort(files);
+            assertEquals("""
+                jetty-http-11.0.14.jar
+                jetty-io-11.0.14.jar
+                jetty-jakarta-servlet-api-5.0.2.jar
+                jetty-server-11.0.14.jar
+                jetty-util-11.0.14.jar
+                slf4j-api-2.0.5.jar""", StringUtils.join(files, "\n"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependencyJettySources()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14)));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp, CLASSIFIER_SOURCES);
+            assertEquals("""
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-server/11.0.14/jetty-server-11.0.14.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-server/11.0.14/jetty-server-11.0.14-sources.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/toolchain/jetty-jakarta-servlet-api/5.0.2/jetty-jakarta-servlet-api-5.0.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/toolchain/jetty-jakarta-servlet-api/5.0.2/jetty-jakarta-servlet-api-5.0.2-sources.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-http/11.0.14/jetty-http-11.0.14.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-http/11.0.14/jetty-http-11.0.14-sources.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-io/11.0.14/jetty-io-11.0.14.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-io/11.0.14/jetty-io-11.0.14-sources.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/slf4j-api/2.0.5/slf4j-api-2.0.5.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/slf4j-api/2.0.5/slf4j-api-2.0.5-sources.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-util/11.0.14/jetty-util-11.0.14.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-util/11.0.14/jetty-util-11.0.14-sources.jar""", StringUtils.join(result, "\n"));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(12, files.size());
+            Collections.sort(files);
+            assertEquals("""
+                jetty-http-11.0.14-sources.jar
+                jetty-http-11.0.14.jar
+                jetty-io-11.0.14-sources.jar
+                jetty-io-11.0.14.jar
+                jetty-jakarta-servlet-api-5.0.2-sources.jar
+                jetty-jakarta-servlet-api-5.0.2.jar
+                jetty-server-11.0.14-sources.jar
+                jetty-server-11.0.14.jar
+                jetty-util-11.0.14-sources.jar
+                jetty-util-11.0.14.jar
+                slf4j-api-2.0.5-sources.jar
+                slf4j-api-2.0.5.jar""", StringUtils.join(files, "\n"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependencyJettySourcesJavadoc()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14)));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp, CLASSIFIER_SOURCES, CLASSIFIER_JAVADOC);
+            assertEquals("""
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-server/11.0.14/jetty-server-11.0.14.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-server/11.0.14/jetty-server-11.0.14-sources.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-server/11.0.14/jetty-server-11.0.14-javadoc.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/toolchain/jetty-jakarta-servlet-api/5.0.2/jetty-jakarta-servlet-api-5.0.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/toolchain/jetty-jakarta-servlet-api/5.0.2/jetty-jakarta-servlet-api-5.0.2-sources.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/toolchain/jetty-jakarta-servlet-api/5.0.2/jetty-jakarta-servlet-api-5.0.2-javadoc.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-http/11.0.14/jetty-http-11.0.14.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-http/11.0.14/jetty-http-11.0.14-sources.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-http/11.0.14/jetty-http-11.0.14-javadoc.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-io/11.0.14/jetty-io-11.0.14.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-io/11.0.14/jetty-io-11.0.14-sources.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-io/11.0.14/jetty-io-11.0.14-javadoc.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/slf4j-api/2.0.5/slf4j-api-2.0.5.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/slf4j-api/2.0.5/slf4j-api-2.0.5-sources.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/slf4j-api/2.0.5/slf4j-api-2.0.5-javadoc.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-util/11.0.14/jetty-util-11.0.14.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-util/11.0.14/jetty-util-11.0.14-sources.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-util/11.0.14/jetty-util-11.0.14-javadoc.jar""", StringUtils.join(result, "\n"));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(18, files.size());
+            Collections.sort(files);
+            assertEquals("""
+                jetty-http-11.0.14-javadoc.jar
+                jetty-http-11.0.14-sources.jar
+                jetty-http-11.0.14.jar
+                jetty-io-11.0.14-javadoc.jar
+                jetty-io-11.0.14-sources.jar
+                jetty-io-11.0.14.jar
+                jetty-jakarta-servlet-api-5.0.2-javadoc.jar
+                jetty-jakarta-servlet-api-5.0.2-sources.jar
+                jetty-jakarta-servlet-api-5.0.2.jar
+                jetty-server-11.0.14-javadoc.jar
+                jetty-server-11.0.14-sources.jar
+                jetty-server-11.0.14.jar
+                jetty-util-11.0.14-javadoc.jar
+                jetty-util-11.0.14-sources.jar
+                jetty-util-11.0.14.jar
+                slf4j-api-2.0.5-javadoc.jar
+                slf4j-api-2.0.5-sources.jar
+                slf4j-api-2.0.5.jar""", StringUtils.join(files, "\n"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependenciesJunit()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.junit.jupiter", "junit-jupiter", new VersionNumber(5, 9, 2)));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile, runtime).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp);
+            assertEquals("""
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/junit/jupiter/junit-jupiter/5.9.2/junit-jupiter-5.9.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/junit/jupiter/junit-jupiter-api/5.9.2/junit-jupiter-api-5.9.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/junit/jupiter/junit-jupiter-params/5.9.2/junit-jupiter-params-5.9.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/junit/jupiter/junit-jupiter-engine/5.9.2/junit-jupiter-engine-5.9.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/opentest4j/opentest4j/1.2.0/opentest4j-1.2.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/junit/platform/junit-platform-commons/1.9.2/junit-platform-commons-1.9.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apiguardian/apiguardian-api/1.1.2/apiguardian-api-1.1.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/junit/platform/junit-platform-engine/1.9.2/junit-platform-engine-1.9.2.jar""", StringUtils.join(result, "\n"));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(8, files.size());
+            Collections.sort(files);
+            assertEquals("""
+                apiguardian-api-1.1.2.jar
+                junit-jupiter-5.9.2.jar
+                junit-jupiter-api-5.9.2.jar
+                junit-jupiter-engine-5.9.2.jar
+                junit-jupiter-params-5.9.2.jar
+                junit-platform-commons-1.9.2.jar
+                junit-platform-engine-1.9.2.jar
+                opentest4j-1.2.0.jar""", StringUtils.join(files, "\n"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependencySpringBoot()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.springframework.boot", "spring-boot-starter", new VersionNumber(3, 0, 4)));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp);
+            assertEquals("""
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/springframework/boot/spring-boot-starter/3.0.4/spring-boot-starter-3.0.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/springframework/boot/spring-boot/3.0.4/spring-boot-3.0.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/springframework/boot/spring-boot-autoconfigure/3.0.4/spring-boot-autoconfigure-3.0.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/springframework/boot/spring-boot-starter-logging/3.0.4/spring-boot-starter-logging-3.0.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/jakarta/annotation/jakarta.annotation-api/2.1.1/jakarta.annotation-api-2.1.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/springframework/spring-core/6.0.6/spring-core-6.0.6.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/yaml/snakeyaml/1.33/snakeyaml-1.33.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/springframework/spring-context/6.0.6/spring-context-6.0.6.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/ch/qos/logback/logback-classic/1.4.5/logback-classic-1.4.5.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/logging/log4j/log4j-to-slf4j/2.19.0/log4j-to-slf4j-2.19.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/jul-to-slf4j/2.0.6/jul-to-slf4j-2.0.6.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/springframework/spring-jcl/6.0.6/spring-jcl-6.0.6.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/springframework/spring-aop/6.0.6/spring-aop-6.0.6.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/springframework/spring-beans/6.0.6/spring-beans-6.0.6.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/springframework/spring-expression/6.0.6/spring-expression-6.0.6.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/ch/qos/logback/logback-core/1.4.5/logback-core-1.4.5.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/slf4j-api/2.0.4/slf4j-api-2.0.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/logging/log4j/log4j-api/2.19.0/log4j-api-2.19.0.jar""", StringUtils.join(result, "\n"));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(18, files.size());
+            Collections.sort(files);
+            assertEquals("""
+                jakarta.annotation-api-2.1.1.jar
+                jul-to-slf4j-2.0.6.jar
+                log4j-api-2.19.0.jar
+                log4j-to-slf4j-2.19.0.jar
+                logback-classic-1.4.5.jar
+                logback-core-1.4.5.jar
+                slf4j-api-2.0.4.jar
+                snakeyaml-1.33.jar
+                spring-aop-6.0.6.jar
+                spring-beans-6.0.6.jar
+                spring-boot-3.0.4.jar
+                spring-boot-autoconfigure-3.0.4.jar
+                spring-boot-starter-3.0.4.jar
+                spring-boot-starter-logging-3.0.4.jar
+                spring-context-6.0.6.jar
+                spring-core-6.0.6.jar
+                spring-expression-6.0.6.jar
+                spring-jcl-6.0.6.jar""", StringUtils.join(files, "\n"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependencyMaven()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.apache.maven", "maven-core", new VersionNumber(3, 9, 0)));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp);
+            assertEquals("""
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/maven-core/3.9.0/maven-core-3.9.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/maven-model/3.9.0/maven-model-3.9.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/maven-settings/3.9.0/maven-settings-3.9.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/maven-settings-builder/3.9.0/maven-settings-builder-3.9.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/maven-builder-support/3.9.0/maven-builder-support-3.9.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/maven-repository-metadata/3.9.0/maven-repository-metadata-3.9.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/maven-artifact/3.9.0/maven-artifact-3.9.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/maven-plugin-api/3.9.0/maven-plugin-api-3.9.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/maven-model-builder/3.9.0/maven-model-builder-3.9.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/maven-resolver-provider/3.9.0/maven-resolver-provider-3.9.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/resolver/maven-resolver-impl/1.9.4/maven-resolver-impl-1.9.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/resolver/maven-resolver-api/1.9.4/maven-resolver-api-1.9.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/resolver/maven-resolver-spi/1.9.4/maven-resolver-spi-1.9.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/resolver/maven-resolver-util/1.9.4/maven-resolver-util-1.9.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/shared/maven-shared-utils/3.3.4/maven-shared-utils-3.3.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/sisu/org.eclipse.sisu.plexus/0.3.5/org.eclipse.sisu.plexus-0.3.5.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/eclipse/sisu/org.eclipse.sisu.inject/0.3.5/org.eclipse.sisu.inject-0.3.5.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/google/inject/guice/5.1.0/guice-5.1.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/google/guava/guava/30.1-jre/guava-30.1-jre.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/google/guava/failureaccess/1.0.1/failureaccess-1.0.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/javax/inject/javax.inject/1/javax.inject-1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/codehaus/plexus/plexus-utils/3.4.2/plexus-utils-3.4.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/codehaus/plexus/plexus-classworlds/2.6.0/plexus-classworlds-2.6.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/codehaus/plexus/plexus-interpolation/1.26/plexus-interpolation-1.26.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/codehaus/plexus/plexus-component-annotations/2.1.0/plexus-component-annotations-2.1.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/commons/commons-lang3/3.8.1/commons-lang3-3.8.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/slf4j-api/1.7.36/slf4j-api-1.7.36.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/codehaus/plexus/plexus-sec-dispatcher/2.0/plexus-sec-dispatcher-2.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/maven/resolver/maven-resolver-named-locks/1.9.4/maven-resolver-named-locks-1.9.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/javax/annotation/javax.annotation-api/1.2/javax.annotation-api-1.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/aopalliance/aopalliance/1.0/aopalliance-1.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/codehaus/plexus/plexus-cipher/2.0/plexus-cipher-2.0.jar""", StringUtils.join(result, "\n"));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(32, files.size());
+            Collections.sort(files);
+            assertEquals("""
+                aopalliance-1.0.jar
+                commons-lang3-3.8.1.jar
+                failureaccess-1.0.1.jar
+                guava-30.1-jre.jar
+                guice-5.1.0.jar
+                javax.annotation-api-1.2.jar
+                javax.inject-1.jar
+                maven-artifact-3.9.0.jar
+                maven-builder-support-3.9.0.jar
+                maven-core-3.9.0.jar
+                maven-model-3.9.0.jar
+                maven-model-builder-3.9.0.jar
+                maven-plugin-api-3.9.0.jar
+                maven-repository-metadata-3.9.0.jar
+                maven-resolver-api-1.9.4.jar
+                maven-resolver-impl-1.9.4.jar
+                maven-resolver-named-locks-1.9.4.jar
+                maven-resolver-provider-3.9.0.jar
+                maven-resolver-spi-1.9.4.jar
+                maven-resolver-util-1.9.4.jar
+                maven-settings-3.9.0.jar
+                maven-settings-builder-3.9.0.jar
+                maven-shared-utils-3.3.4.jar
+                org.eclipse.sisu.inject-0.3.5.jar
+                org.eclipse.sisu.plexus-0.3.5.jar
+                plexus-cipher-2.0.jar
+                plexus-classworlds-2.6.0.jar
+                plexus-component-annotations-2.1.0.jar
+                plexus-interpolation-1.26.jar
+                plexus-sec-dispatcher-2.0.jar
+                plexus-utils-3.4.2.jar
+                slf4j-api-1.7.36.jar""", StringUtils.join(files, "\n"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependencyPlay()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.typesafe.play", "play_2.13", new VersionNumber(2, 8, 19)));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp);
+            assertEquals("""
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/play/play_2.13/2.8.19/play_2.13-2.8.19.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/scala-lang/scala-library/2.13.10/scala-library-2.13.10.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/play/build-link/2.8.19/build-link-2.8.19.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/play/play-streams_2.13/2.8.19/play-streams_2.13-2.8.19.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/play/twirl-api_2.13/1.5.1/twirl-api_2.13-1.5.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/slf4j-api/1.7.36/slf4j-api-1.7.36.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/jul-to-slf4j/1.7.36/jul-to-slf4j-1.7.36.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/jcl-over-slf4j/1.7.36/jcl-over-slf4j-1.7.36.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/akka/akka-actor_2.13/2.6.20/akka-actor_2.13-2.6.20.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/akka/akka-actor-typed_2.13/2.6.20/akka-actor-typed_2.13-2.6.20.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/akka/akka-slf4j_2.13/2.6.20/akka-slf4j_2.13-2.6.20.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/akka/akka-serialization-jackson_2.13/2.6.20/akka-serialization-jackson_2.13-2.6.20.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-core/2.11.4/jackson-core-2.11.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-annotations/2.11.4/jackson-annotations-2.11.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.11.4/jackson-datatype-jdk8-2.11.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.11.4/jackson-datatype-jsr310-2.11.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-databind/2.11.4/jackson-databind-2.11.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/play/play-json_2.13/2.8.2/play-json_2.13-2.8.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/google/guava/guava/30.1.1-jre/guava-30.1.1-jre.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/io/jsonwebtoken/jjwt/0.9.1/jjwt-0.9.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/jakarta/xml/bind/jakarta.xml.bind-api/2.3.3/jakarta.xml.bind-api-2.3.3.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/jakarta/transaction/jakarta.transaction-api/1.3.3/jakarta.transaction-api-1.3.3.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/javax/inject/javax.inject/1/javax.inject-1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/scala-lang/modules/scala-java8-compat_2.13/1.0.2/scala-java8-compat_2.13-1.0.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/ssl-config-core_2.13/0.4.3/ssl-config-core_2.13-0.4.3.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/scala-lang/modules/scala-parser-combinators_2.13/1.1.2/scala-parser-combinators_2.13-1.1.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/play/play-exceptions/2.8.19/play-exceptions-2.8.19.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/reactivestreams/reactive-streams/1.0.3/reactive-streams-1.0.3.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/akka/akka-stream_2.13/2.6.20/akka-stream_2.13-2.6.20.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/scala-lang/modules/scala-xml_2.13/1.2.0/scala-xml_2.13-1.2.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/config/1.4.2/config-1.4.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/module/jackson-module-parameter-names/2.11.4/jackson-module-parameter-names-2.11.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/dataformat/jackson-dataformat-cbor/2.11.4/jackson-dataformat-cbor-2.11.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/module/jackson-module-scala_2.13/2.11.4/jackson-module-scala_2.13-2.11.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/lz4/lz4-java/1.8.0/lz4-java-1.8.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/play/play-functional_2.13/2.8.2/play-functional_2.13-2.8.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/scala-lang/scala-reflect/2.13.1/scala-reflect-2.13.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/joda-time/joda-time/2.10.5/joda-time-2.10.5.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/google/guava/failureaccess/1.0.1/failureaccess-1.0.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/google/guava/listenablefuture/9999.0-empty-to-avoid-conflict-with-guava/listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/google/code/findbugs/jsr305/3.0.2/jsr305-3.0.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/checkerframework/checker-qual/3.8.0/checker-qual-3.8.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/google/errorprone/error_prone_annotations/2.5.1/error_prone_annotations-2.5.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/google/j2objc/j2objc-annotations/1.3/j2objc-annotations-1.3.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/jakarta/activation/jakarta.activation-api/1.2.2/jakarta.activation-api-1.2.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/typesafe/akka/akka-protobuf-v3_2.13/2.6.20/akka-protobuf-v3_2.13-2.6.20.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/module/jackson-module-paranamer/2.11.4/jackson-module-paranamer-2.11.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/thoughtworks/paranamer/paranamer/2.8/paranamer-2.8.jar""", StringUtils.join(result, "\n"));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(48, files.size());
+            Collections.sort(files);
+            assertEquals("""
+                akka-actor-typed_2.13-2.6.20.jar
+                akka-actor_2.13-2.6.20.jar
+                akka-protobuf-v3_2.13-2.6.20.jar
+                akka-serialization-jackson_2.13-2.6.20.jar
+                akka-slf4j_2.13-2.6.20.jar
+                akka-stream_2.13-2.6.20.jar
+                build-link-2.8.19.jar
+                checker-qual-3.8.0.jar
+                config-1.4.2.jar
+                error_prone_annotations-2.5.1.jar
+                failureaccess-1.0.1.jar
+                guava-30.1.1-jre.jar
+                j2objc-annotations-1.3.jar
+                jackson-annotations-2.11.4.jar
+                jackson-core-2.11.4.jar
+                jackson-databind-2.11.4.jar
+                jackson-dataformat-cbor-2.11.4.jar
+                jackson-datatype-jdk8-2.11.4.jar
+                jackson-datatype-jsr310-2.11.4.jar
+                jackson-module-parameter-names-2.11.4.jar
+                jackson-module-paranamer-2.11.4.jar
+                jackson-module-scala_2.13-2.11.4.jar
+                jakarta.activation-api-1.2.2.jar
+                jakarta.transaction-api-1.3.3.jar
+                jakarta.xml.bind-api-2.3.3.jar
+                javax.inject-1.jar
+                jcl-over-slf4j-1.7.36.jar
+                jjwt-0.9.1.jar
+                joda-time-2.10.5.jar
+                jsr305-3.0.2.jar
+                jul-to-slf4j-1.7.36.jar
+                listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar
+                lz4-java-1.8.0.jar
+                paranamer-2.8.jar
+                play-exceptions-2.8.19.jar
+                play-functional_2.13-2.8.2.jar
+                play-json_2.13-2.8.2.jar
+                play-streams_2.13-2.8.19.jar
+                play_2.13-2.8.19.jar
+                reactive-streams-1.0.3.jar
+                scala-java8-compat_2.13-1.0.2.jar
+                scala-library-2.13.10.jar
+                scala-parser-combinators_2.13-1.1.2.jar
+                scala-reflect-2.13.1.jar
+                scala-xml_2.13-1.2.0.jar
+                slf4j-api-1.7.36.jar
+                ssl-config-core_2.13-0.4.3.jar
+                twirl-api_2.13-1.5.1.jar""", StringUtils.join(files, "\n"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferDependencyVaadin()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("com.vaadin", "vaadin", new VersionNumber(23, 3, 7)));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            var result = resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp);
+            assertEquals("""
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin/23.3.7/vaadin-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-core/23.3.7/vaadin-core-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-board-flow/23.3.7/vaadin-board-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-charts-flow/23.3.7/vaadin-charts-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-cookie-consent-flow/23.3.7/vaadin-cookie-consent-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-crud-flow/23.3.7/vaadin-crud-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-grid-pro-flow/23.3.7/vaadin-grid-pro-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-map-flow/23.3.7/vaadin-map-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-rich-text-editor-flow/23.3.7/vaadin-rich-text-editor-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/collaboration-engine/5.3.0/collaboration-engine-5.3.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/flow-server/23.3.4/flow-server-23.3.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-dev-server/23.3.4/vaadin-dev-server-23.3.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/flow-lit-template/23.3.4/flow-lit-template-23.3.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/flow-polymer-template/23.3.4/flow-polymer-template-23.3.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/flow-push/23.3.4/flow-push-23.3.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/flow-client/23.3.4/flow-client-23.3.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/flow-html-components/23.3.4/flow-html-components-23.3.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/flow-data/23.3.4/flow-data-23.3.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/flow-dnd/23.3.4/flow-dnd-23.3.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-lumo-theme/23.3.7/vaadin-lumo-theme-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-material-theme/23.3.7/vaadin-material-theme-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-accordion-flow/23.3.7/vaadin-accordion-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-avatar-flow/23.3.7/vaadin-avatar-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-button-flow/23.3.7/vaadin-button-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-checkbox-flow/23.3.7/vaadin-checkbox-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-combo-box-flow/23.3.7/vaadin-combo-box-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-confirm-dialog-flow/23.3.7/vaadin-confirm-dialog-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-custom-field-flow/23.3.7/vaadin-custom-field-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-date-picker-flow/23.3.7/vaadin-date-picker-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-date-time-picker-flow/23.3.7/vaadin-date-time-picker-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-details-flow/23.3.7/vaadin-details-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-time-picker-flow/23.3.7/vaadin-time-picker-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-select-flow/23.3.7/vaadin-select-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-dialog-flow/23.3.7/vaadin-dialog-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-form-layout-flow/23.3.7/vaadin-form-layout-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-field-highlighter-flow/23.3.7/vaadin-field-highlighter-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-grid-flow/23.3.7/vaadin-grid-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-icons-flow/23.3.7/vaadin-icons-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-iron-list-flow/23.3.7/vaadin-iron-list-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-virtual-list-flow/23.3.7/vaadin-virtual-list-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-list-box-flow/23.3.7/vaadin-list-box-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-login-flow/23.3.7/vaadin-login-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-messages-flow/23.3.7/vaadin-messages-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-ordered-layout-flow/23.3.7/vaadin-ordered-layout-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-progress-bar-flow/23.3.7/vaadin-progress-bar-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-radio-button-flow/23.3.7/vaadin-radio-button-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-renderer-flow/23.3.7/vaadin-renderer-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-split-layout-flow/23.3.7/vaadin-split-layout-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-tabs-flow/23.3.7/vaadin-tabs-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-text-field-flow/23.3.7/vaadin-text-field-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-upload-flow/23.3.7/vaadin-upload-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-notification-flow/23.3.7/vaadin-notification-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-app-layout-flow/23.3.7/vaadin-app-layout-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-context-menu-flow/23.3.7/vaadin-context-menu-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-menu-bar-flow/23.3.7/vaadin-menu-bar-flow-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-databind/2.14.1/jackson-databind-2.14.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.14.1/jackson-datatype-jsr310-2.14.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/license-checker/1.5.1/license-checker-1.5.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/servletdetector/throw-if-servlet5/1.0.2/throw-if-servlet5-1.0.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/slf4j/slf4j-api/1.7.36/slf4j-api-1.7.36.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/javax/annotation/javax.annotation-api/1.3.2/javax.annotation-api-1.3.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/external/gwt/gwt-elemental/2.8.2.vaadin2/gwt-elemental-2.8.2.vaadin2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/commons-fileupload/commons-fileupload/1.4/commons-fileupload-1.4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/commons-io/commons-io/2.11.0/commons-io-2.11.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-core/2.14.1/jackson-core-2.14.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/jsoup/jsoup/1.15.3/jsoup-1.15.3.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/helger/ph-css/6.5.0/ph-css-6.5.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/net/bytebuddy/byte-buddy/1.12.20/byte-buddy-1.12.20.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/external/gentyref/1.2.0.vaadin1/gentyref-1.2.0.vaadin1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/commons/commons-compress/1.22/commons-compress-1.22.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/commons-codec/commons-codec/1.15/commons-codec-1.15.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/open/8.5.0/open-8.5.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/external/atmosphere/atmosphere-runtime/2.7.3.slf4jvaadin4/atmosphere-runtime-2.7.3.slf4jvaadin4.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/javax/validation/validation-api/2.0.1.Final/validation-api-2.0.1.Final.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/webjars/npm/vaadin__vaadin-mobile-drag-drop/1.0.1/vaadin__vaadin-mobile-drag-drop-1.0.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/webjars/npm/mobile-drag-drop/2.3.0-rc.2/mobile-drag-drop-2.3.0-rc.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/vaadin/vaadin-flow-components-base/23.3.7/vaadin-flow-components-base-23.3.7.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/commons/commons-lang3/3.12.0/commons-lang3-3.12.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-annotations/2.14.1/jackson-annotations-2.14.1.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/github/oshi/oshi-core/6.1.6/oshi-core-6.1.6.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/auth0/java-jwt/3.19.2/java-jwt-3.19.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/helger/commons/ph-commons/10.1.6/ph-commons-10.1.6.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/org/apache/httpcomponents/httpcore/4.4.13/httpcore-4.4.13.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/commons-logging/commons-logging/1.2/commons-logging-1.2.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/net/java/dev/jna/jna/5.11.0/jna-5.11.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/net/java/dev/jna/jna-platform/5.11.0/jna-platform-5.11.0.jar
+                https://repo1.maven.org/maven2/:https://repo1.maven.org/maven2/com/google/code/findbugs/jsr305/3.0.2/jsr305-3.0.2.jar""", StringUtils.join(result, "\n"));
+
+            var files = FileUtils.getFileList(tmp);
+            assertEquals(88, files.size());
+            Collections.sort(files);
+            assertEquals("""
+                atmosphere-runtime-2.7.3.slf4jvaadin4.jar
+                byte-buddy-1.12.20.jar
+                collaboration-engine-5.3.0.jar
+                commons-codec-1.15.jar
+                commons-compress-1.22.jar
+                commons-fileupload-1.4.jar
+                commons-io-2.11.0.jar
+                commons-lang3-3.12.0.jar
+                commons-logging-1.2.jar
+                flow-client-23.3.4.jar
+                flow-data-23.3.4.jar
+                flow-dnd-23.3.4.jar
+                flow-html-components-23.3.4.jar
+                flow-lit-template-23.3.4.jar
+                flow-polymer-template-23.3.4.jar
+                flow-push-23.3.4.jar
+                flow-server-23.3.4.jar
+                gentyref-1.2.0.vaadin1.jar
+                gwt-elemental-2.8.2.vaadin2.jar
+                httpclient-4.5.13.jar
+                httpcore-4.4.13.jar
+                jackson-annotations-2.14.1.jar
+                jackson-core-2.14.1.jar
+                jackson-databind-2.14.1.jar
+                jackson-datatype-jsr310-2.14.1.jar
+                java-jwt-3.19.2.jar
+                javax.annotation-api-1.3.2.jar
+                jna-5.11.0.jar
+                jna-platform-5.11.0.jar
+                jsoup-1.15.3.jar
+                jsr305-3.0.2.jar
+                license-checker-1.5.1.jar
+                mobile-drag-drop-2.3.0-rc.2.jar
+                open-8.5.0.jar
+                oshi-core-6.1.6.jar
+                ph-commons-10.1.6.jar
+                ph-css-6.5.0.jar
+                slf4j-api-1.7.36.jar
+                throw-if-servlet5-1.0.2.jar
+                vaadin-23.3.7.jar
+                vaadin-accordion-flow-23.3.7.jar
+                vaadin-app-layout-flow-23.3.7.jar
+                vaadin-avatar-flow-23.3.7.jar
+                vaadin-board-flow-23.3.7.jar
+                vaadin-button-flow-23.3.7.jar
+                vaadin-charts-flow-23.3.7.jar
+                vaadin-checkbox-flow-23.3.7.jar
+                vaadin-combo-box-flow-23.3.7.jar
+                vaadin-confirm-dialog-flow-23.3.7.jar
+                vaadin-context-menu-flow-23.3.7.jar
+                vaadin-cookie-consent-flow-23.3.7.jar
+                vaadin-core-23.3.7.jar
+                vaadin-crud-flow-23.3.7.jar
+                vaadin-custom-field-flow-23.3.7.jar
+                vaadin-date-picker-flow-23.3.7.jar
+                vaadin-date-time-picker-flow-23.3.7.jar
+                vaadin-details-flow-23.3.7.jar
+                vaadin-dev-server-23.3.4.jar
+                vaadin-dialog-flow-23.3.7.jar
+                vaadin-field-highlighter-flow-23.3.7.jar
+                vaadin-flow-components-base-23.3.7.jar
+                vaadin-form-layout-flow-23.3.7.jar
+                vaadin-grid-flow-23.3.7.jar
+                vaadin-grid-pro-flow-23.3.7.jar
+                vaadin-icons-flow-23.3.7.jar
+                vaadin-iron-list-flow-23.3.7.jar
+                vaadin-list-box-flow-23.3.7.jar
+                vaadin-login-flow-23.3.7.jar
+                vaadin-lumo-theme-23.3.7.jar
+                vaadin-map-flow-23.3.7.jar
+                vaadin-material-theme-23.3.7.jar
+                vaadin-menu-bar-flow-23.3.7.jar
+                vaadin-messages-flow-23.3.7.jar
+                vaadin-notification-flow-23.3.7.jar
+                vaadin-ordered-layout-flow-23.3.7.jar
+                vaadin-progress-bar-flow-23.3.7.jar
+                vaadin-radio-button-flow-23.3.7.jar
+                vaadin-renderer-flow-23.3.7.jar
+                vaadin-rich-text-editor-flow-23.3.7.jar
+                vaadin-select-flow-23.3.7.jar
+                vaadin-split-layout-flow-23.3.7.jar
+                vaadin-tabs-flow-23.3.7.jar
+                vaadin-text-field-flow-23.3.7.jar
+                vaadin-time-picker-flow-23.3.7.jar
+                vaadin-upload-flow-23.3.7.jar
+                vaadin-virtual-list-flow-23.3.7.jar
+                vaadin__vaadin-mobile-drag-drop-1.0.1.jar
+                validation-api-2.0.1.Final.jar""", StringUtils.join(files, "\n"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testTransferCheckExisting()
+    throws Exception {
+        var resolver = new DependencyResolver(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS), new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14)));
+        var tmp = Files.createTempDirectory("transfers").toFile();
+        try {
+            resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp);
+
+            var modification_map = new HashMap<String, Long>();
+            Files.walk(Path.of(tmp.getAbsolutePath()))
+                .map(path -> path.toAbsolutePath().toString())
+                .filter(s -> !s.equals(tmp.getAbsolutePath()))
+                .forEach(it -> modification_map.put(it, new File(it).lastModified()));
+
+            // re-transfer and check the modification time didn't change
+            resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp);
+            Files.walk(Path.of(tmp.getAbsolutePath()))
+                .map(path -> path.toAbsolutePath().toString())
+                .filter(s -> !s.equals(tmp.getAbsolutePath()))
+                .forEach(it -> assertEquals(modification_map.get(it), new File(it).lastModified()));
+
+            // delete one file and check that this is transfered again
+            var first = modification_map.keySet().stream().findFirst().get();
+            var first_file = new File(first);
+            first_file.delete();
+            resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp);
+            assertNotEquals(first_file.lastModified(), modification_map.get(first));
+            modification_map.put(first, first_file.lastModified());
+            Files.walk(Path.of(tmp.getAbsolutePath()))
+                .map(path -> path.toAbsolutePath().toString())
+                .filter(s -> !s.equals(tmp.getAbsolutePath()))
+                .forEach(it -> assertEquals(modification_map.get(it), new File(it).lastModified()));
+
+            // change one file and check that this is transfered again
+            FileUtils.writeString("stuff", first_file);
+            var before_transfer_modified = first_file.lastModified();
+            resolver.getAllDependencies(compile).transferIntoDirectory(ArtifactRetriever.instance(), resolver.repositories(), tmp);
+            assertNotEquals(first_file.lastModified(), before_transfer_modified);
+            modification_map.put(first, first_file.lastModified());
+            Files.walk(Path.of(tmp.getAbsolutePath()))
+                .map(path -> path.toAbsolutePath().toString())
+                .filter(s -> !s.equals(tmp.getAbsolutePath()))
+                .forEach(it -> assertEquals(modification_map.get(it), new File(it).lastModified()));
+
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+}
diff --git a/src/test/java/rife/bld/dependencies/TestDependencySet.java b/src/test/java/rife/bld/dependencies/TestDependencySet.java
new file mode 100644
index 0000000..aac6e6c
--- /dev/null
+++ b/src/test/java/rife/bld/dependencies/TestDependencySet.java
@@ -0,0 +1,375 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import org.junit.jupiter.api.Test;
+import rife.tools.StringUtils;
+
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static rife.bld.dependencies.Repository.*;
+import static rife.bld.dependencies.Scope.compile;
+import static rife.bld.dependencies.Scope.runtime;
+
+public class TestDependencySet {
+    @Test
+    void testInstantiation() {
+        var set = new DependencySet();
+        assertNotNull(set);
+        assertTrue(set.isEmpty());
+    }
+
+    @Test
+    void testPopulation() {
+        var set = new DependencySet();
+
+        var dep1 = new Dependency("com.uwyn.rife2", "rife2");
+        var dep2 = new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 3, 0));
+        var dep3 = new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 4, 0));
+        var dep4 = new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 3, 1));
+
+        set.add(dep1);
+        assertEquals(VersionNumber.UNKNOWN, set.get(dep1).version());
+        set.add(dep2);
+        assertEquals(dep2.version(), set.get(dep1).version());
+        set.add(dep3);
+        assertEquals(dep3.version(), set.get(dep2).version());
+        set.add(dep4);
+        assertEquals(dep3.version(), set.get(dep2).version());
+    }
+
+    @Test
+    void testAddAll() {
+        var set1 = new DependencySet()
+            .include(new Dependency("org.eclipse.jetty", "jetty-server", VersionNumber.parse("11.0.14")))
+            .include(new Dependency("org.eclipse.jetty.toolchain", "jetty-jakarta-servlet-api", VersionNumber.parse("5.0.2")))
+            .include(new Dependency("org.eclipse.jetty", "jetty-http", VersionNumber.parse("11.0.14")))
+            .include(new Dependency("org.eclipse.jetty", "jetty-io", VersionNumber.parse("11.0.14")))
+            .include(new Dependency("org.eclipse.jetty", "jetty-util", VersionNumber.parse("11.0.14")))
+            .include(new Dependency("org.slf4j", "slf4j-api", VersionNumber.parse("2.0.5")));
+
+        var set2 = new DependencySet()
+            .include(new Dependency("org.slf4j", "slf4j-simple", VersionNumber.parse("2.0.6")))
+            .include(new Dependency("org.slf4j", "slf4j-api", VersionNumber.parse("2.0.6")));
+
+        var set_union1 = new DependencySet(set1);
+        set_union1.addAll(set2);
+        assertEquals("""
+            org.eclipse.jetty:jetty-server:11.0.14
+            org.eclipse.jetty.toolchain:jetty-jakarta-servlet-api:5.0.2
+            org.eclipse.jetty:jetty-http:11.0.14
+            org.eclipse.jetty:jetty-io:11.0.14
+            org.eclipse.jetty:jetty-util:11.0.14
+            org.slf4j:slf4j-simple:2.0.6
+            org.slf4j:slf4j-api:2.0.6""", StringUtils.join(set_union1, "\n"));
+
+        var set_union2 = new DependencySet(set2);
+        set_union2.addAll(set1);
+        assertEquals("""
+            org.slf4j:slf4j-simple:2.0.6
+            org.slf4j:slf4j-api:2.0.6
+            org.eclipse.jetty:jetty-server:11.0.14
+            org.eclipse.jetty.toolchain:jetty-jakarta-servlet-api:5.0.2
+            org.eclipse.jetty:jetty-http:11.0.14
+            org.eclipse.jetty:jetty-io:11.0.14
+            org.eclipse.jetty:jetty-util:11.0.14""", StringUtils.join(set_union2, "\n"));
+    }
+
+    @Test
+    void testGenerateDependencyTreeJettySlf4j() {
+        var dependencies = new DependencySet()
+            .include(new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14)))
+            .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 6)));
+        assertEquals("""
+            ├─ org.eclipse.jetty:jetty-server:11.0.14
+            │  ├─ org.eclipse.jetty.toolchain:jetty-jakarta-servlet-api:5.0.2
+            │  ├─ org.eclipse.jetty:jetty-http:11.0.14
+            │  │  └─ org.eclipse.jetty:jetty-util:11.0.14
+            │  └─ org.eclipse.jetty:jetty-io:11.0.14
+            └─ org.slf4j:slf4j-simple:2.0.6
+               └─ org.slf4j:slf4j-api:2.0.6
+            """, dependencies.generateTransitiveDependencyTree(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL), compile));
+    }
+
+    @Test
+    void testGenerateDependencyTreeSpringBoot() {
+        var dependencies = new DependencySet()
+            .include(new Dependency("org.springframework.boot", "spring-boot-starter", new VersionNumber(3, 0, 4)));
+        assertEquals("""
+            └─ org.springframework.boot:spring-boot-starter:3.0.4
+               ├─ org.springframework.boot:spring-boot:3.0.4
+               │  └─ org.springframework:spring-context:6.0.6
+               │     ├─ org.springframework:spring-aop:6.0.6
+               │     ├─ org.springframework:spring-beans:6.0.6
+               │     └─ org.springframework:spring-expression:6.0.6
+               ├─ org.springframework.boot:spring-boot-autoconfigure:3.0.4
+               ├─ org.springframework.boot:spring-boot-starter-logging:3.0.4
+               │  ├─ ch.qos.logback:logback-classic:1.4.5
+               │  │  ├─ ch.qos.logback:logback-core:1.4.5
+               │  │  └─ org.slf4j:slf4j-api:2.0.4
+               │  ├─ org.apache.logging.log4j:log4j-to-slf4j:2.19.0
+               │  │  └─ org.apache.logging.log4j:log4j-api:2.19.0
+               │  └─ org.slf4j:jul-to-slf4j:2.0.6
+               ├─ jakarta.annotation:jakarta.annotation-api:2.1.1
+               ├─ org.springframework:spring-core:6.0.6
+               │  └─ org.springframework:spring-jcl:6.0.6
+               └─ org.yaml:snakeyaml:1.33
+            """, dependencies.generateTransitiveDependencyTree(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL), compile));
+    }
+
+    @Test
+    void testGenerateDependencyTreeMaven() {
+        var dependencies = new DependencySet()
+            .include(new Dependency("org.apache.maven", "maven-core", new VersionNumber(3, 9, 0)));
+        assertEquals("""
+            └─ org.apache.maven:maven-core:3.9.0
+               ├─ org.apache.maven:maven-model:3.9.0
+               ├─ org.apache.maven:maven-settings:3.9.0
+               ├─ org.apache.maven:maven-settings-builder:3.9.0
+               │  └─ org.codehaus.plexus:plexus-sec-dispatcher:2.0
+               │     └─ org.codehaus.plexus:plexus-cipher:2.0
+               ├─ org.apache.maven:maven-builder-support:3.9.0
+               ├─ org.apache.maven:maven-repository-metadata:3.9.0
+               ├─ org.apache.maven:maven-artifact:3.9.0
+               ├─ org.apache.maven:maven-plugin-api:3.9.0
+               ├─ org.apache.maven:maven-model-builder:3.9.0
+               ├─ org.apache.maven:maven-resolver-provider:3.9.0
+               ├─ org.apache.maven.resolver:maven-resolver-impl:1.9.4
+               │  └─ org.apache.maven.resolver:maven-resolver-named-locks:1.9.4
+               ├─ org.apache.maven.resolver:maven-resolver-api:1.9.4
+               ├─ org.apache.maven.resolver:maven-resolver-spi:1.9.4
+               ├─ org.apache.maven.resolver:maven-resolver-util:1.9.4
+               ├─ org.apache.maven.shared:maven-shared-utils:3.3.4
+               ├─ org.eclipse.sisu:org.eclipse.sisu.plexus:0.3.5
+               │  └─ javax.annotation:javax.annotation-api:1.2
+               ├─ org.eclipse.sisu:org.eclipse.sisu.inject:0.3.5
+               ├─ com.google.inject:guice:5.1.0
+               │  └─ aopalliance:aopalliance:1.0
+               ├─ com.google.guava:guava:30.1-jre
+               ├─ com.google.guava:failureaccess:1.0.1
+               ├─ javax.inject:javax.inject:1
+               ├─ org.codehaus.plexus:plexus-utils:3.4.2
+               ├─ org.codehaus.plexus:plexus-classworlds:2.6.0
+               ├─ org.codehaus.plexus:plexus-interpolation:1.26
+               ├─ org.codehaus.plexus:plexus-component-annotations:2.1.0
+               ├─ org.apache.commons:commons-lang3:3.8.1
+               └─ org.slf4j:slf4j-api:1.7.36
+            """, dependencies.generateTransitiveDependencyTree(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL), compile));
+    }
+
+    @Test
+    void testGenerateDependencyTreePlay() {
+        var dependencies = new DependencySet()
+            .include(new Dependency("com.typesafe.play", "play_2.13", new VersionNumber(2, 8, 19)));
+        assertEquals("""
+            └─ com.typesafe.play:play_2.13:2.8.19
+               ├─ org.scala-lang:scala-library:2.13.10
+               ├─ com.typesafe.play:build-link:2.8.19
+               │  └─ com.typesafe.play:play-exceptions:2.8.19
+               ├─ com.typesafe.play:play-streams_2.13:2.8.19
+               │  ├─ org.reactivestreams:reactive-streams:1.0.3
+               │  └─ com.typesafe.akka:akka-stream_2.13:2.6.20
+               │     └─ com.typesafe.akka:akka-protobuf-v3_2.13:2.6.20
+               ├─ com.typesafe.play:twirl-api_2.13:1.5.1
+               │  └─ org.scala-lang.modules:scala-xml_2.13:1.2.0
+               ├─ org.slf4j:slf4j-api:1.7.36
+               ├─ org.slf4j:jul-to-slf4j:1.7.36
+               ├─ org.slf4j:jcl-over-slf4j:1.7.36
+               ├─ com.typesafe.akka:akka-actor_2.13:2.6.20
+               │  └─ com.typesafe:config:1.4.2
+               ├─ com.typesafe.akka:akka-actor-typed_2.13:2.6.20
+               ├─ com.typesafe.akka:akka-slf4j_2.13:2.6.20
+               ├─ com.typesafe.akka:akka-serialization-jackson_2.13:2.6.20
+               │  ├─ com.fasterxml.jackson.module:jackson-module-parameter-names:2.11.4
+               │  ├─ com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:2.11.4
+               │  ├─ com.fasterxml.jackson.module:jackson-module-scala_2.13:2.11.4
+               │  │  └─ com.fasterxml.jackson.module:jackson-module-paranamer:2.11.4
+               │  │     └─ com.thoughtworks.paranamer:paranamer:2.8
+               │  └─ org.lz4:lz4-java:1.8.0
+               ├─ com.fasterxml.jackson.core:jackson-core:2.11.4
+               ├─ com.fasterxml.jackson.core:jackson-annotations:2.11.4
+               ├─ com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.11.4
+               ├─ com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.11.4
+               ├─ com.fasterxml.jackson.core:jackson-databind:2.11.4
+               ├─ com.typesafe.play:play-json_2.13:2.8.2
+               │  ├─ com.typesafe.play:play-functional_2.13:2.8.2
+               │  ├─ org.scala-lang:scala-reflect:2.13.1
+               │  └─ joda-time:joda-time:2.10.5
+               ├─ com.google.guava:guava:30.1.1-jre
+               │  ├─ com.google.guava:failureaccess:1.0.1
+               │  ├─ com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava
+               │  ├─ com.google.code.findbugs:jsr305:3.0.2
+               │  ├─ org.checkerframework:checker-qual:3.8.0
+               │  ├─ com.google.errorprone:error_prone_annotations:2.5.1
+               │  └─ com.google.j2objc:j2objc-annotations:1.3
+               ├─ io.jsonwebtoken:jjwt:0.9.1
+               ├─ jakarta.xml.bind:jakarta.xml.bind-api:2.3.3
+               │  └─ jakarta.activation:jakarta.activation-api:1.2.2
+               ├─ jakarta.transaction:jakarta.transaction-api:1.3.3
+               ├─ javax.inject:javax.inject:1
+               ├─ org.scala-lang.modules:scala-java8-compat_2.13:1.0.2
+               ├─ com.typesafe:ssl-config-core_2.13:0.4.3
+               └─ org.scala-lang.modules:scala-parser-combinators_2.13:1.1.2
+            """, dependencies.generateTransitiveDependencyTree(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL), compile));
+    }
+
+    @Test
+    void testGenerateDependencyTreeVaadin() {
+        var dependencies = new DependencySet()
+            .include(new Dependency("com.vaadin", "vaadin", new VersionNumber(23, 3, 7)));
+        assertEquals("""
+            └─ com.vaadin:vaadin:23.3.7
+               ├─ com.vaadin:vaadin-core:23.3.7
+               │  ├─ com.vaadin:flow-server:23.3.4
+               │  │  ├─ com.vaadin.servletdetector:throw-if-servlet5:1.0.2
+               │  │  ├─ org.slf4j:slf4j-api:1.7.36
+               │  │  ├─ javax.annotation:javax.annotation-api:1.3.2
+               │  │  ├─ com.vaadin.external.gwt:gwt-elemental:2.8.2.vaadin2
+               │  │  ├─ commons-fileupload:commons-fileupload:1.4
+               │  │  ├─ commons-io:commons-io:2.11.0
+               │  │  ├─ com.fasterxml.jackson.core:jackson-core:2.14.1
+               │  │  ├─ org.jsoup:jsoup:1.15.3
+               │  │  ├─ com.helger:ph-css:6.5.0
+               │  │  │  └─ com.helger.commons:ph-commons:10.1.6
+               │  │  │     └─ com.google.code.findbugs:jsr305:3.0.2
+               │  │  ├─ net.bytebuddy:byte-buddy:1.12.20
+               │  │  ├─ com.vaadin.external:gentyref:1.2.0.vaadin1
+               │  │  ├─ org.apache.commons:commons-compress:1.22
+               │  │  ├─ org.apache.httpcomponents:httpclient:4.5.13
+               │  │  │  ├─ org.apache.httpcomponents:httpcore:4.4.13
+               │  │  │  └─ commons-logging:commons-logging:1.2
+               │  │  └─ commons-codec:commons-codec:1.15
+               │  ├─ com.vaadin:vaadin-dev-server:23.3.4
+               │  │  └─ com.vaadin:open:8.5.0
+               │  ├─ com.vaadin:flow-lit-template:23.3.4
+               │  ├─ com.vaadin:flow-polymer-template:23.3.4
+               │  ├─ com.vaadin:flow-push:23.3.4
+               │  │  └─ com.vaadin.external.atmosphere:atmosphere-runtime:2.7.3.slf4jvaadin4
+               │  ├─ com.vaadin:flow-client:23.3.4
+               │  ├─ com.vaadin:flow-html-components:23.3.4
+               │  ├─ com.vaadin:flow-data:23.3.4
+               │  │  └─ javax.validation:validation-api:2.0.1.Final
+               │  ├─ com.vaadin:flow-dnd:23.3.4
+               │  │  ├─ org.webjars.npm:vaadin__vaadin-mobile-drag-drop:1.0.1
+               │  │  └─ org.webjars.npm:mobile-drag-drop:2.3.0-rc.2
+               │  ├─ com.vaadin:vaadin-lumo-theme:23.3.7
+               │  ├─ com.vaadin:vaadin-material-theme:23.3.7
+               │  ├─ com.vaadin:vaadin-accordion-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-avatar-flow:23.3.7
+               │  │  └─ com.vaadin:vaadin-flow-components-base:23.3.7
+               │  ├─ com.vaadin:vaadin-button-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-checkbox-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-combo-box-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-confirm-dialog-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-custom-field-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-date-picker-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-date-time-picker-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-details-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-time-picker-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-select-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-dialog-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-form-layout-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-field-highlighter-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-grid-flow:23.3.7
+               │  │  └─ org.apache.commons:commons-lang3:3.12.0
+               │  ├─ com.vaadin:vaadin-icons-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-iron-list-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-virtual-list-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-list-box-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-login-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-messages-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-ordered-layout-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-progress-bar-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-radio-button-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-renderer-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-split-layout-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-tabs-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-text-field-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-upload-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-notification-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-app-layout-flow:23.3.7
+               │  ├─ com.vaadin:vaadin-context-menu-flow:23.3.7
+               │  └─ com.vaadin:vaadin-menu-bar-flow:23.3.7
+               ├─ com.vaadin:vaadin-board-flow:23.3.7
+               ├─ com.vaadin:vaadin-charts-flow:23.3.7
+               ├─ com.vaadin:vaadin-cookie-consent-flow:23.3.7
+               ├─ com.vaadin:vaadin-crud-flow:23.3.7
+               ├─ com.vaadin:vaadin-grid-pro-flow:23.3.7
+               ├─ com.vaadin:vaadin-map-flow:23.3.7
+               ├─ com.vaadin:vaadin-rich-text-editor-flow:23.3.7
+               └─ com.vaadin:collaboration-engine:5.3.0
+                  ├─ com.fasterxml.jackson.core:jackson-databind:2.14.1
+                  │  └─ com.fasterxml.jackson.core:jackson-annotations:2.14.1
+                  ├─ com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.14.1
+                  └─ com.vaadin:license-checker:1.5.1
+                     ├─ com.github.oshi:oshi-core:6.1.6
+                     │  ├─ net.java.dev.jna:jna:5.11.0
+                     │  └─ net.java.dev.jna:jna-platform:5.11.0
+                     └─ com.auth0:java-jwt:3.19.2
+            """, dependencies.generateTransitiveDependencyTree(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL), compile));
+    }
+
+    @Test
+    void testGenerateDependencyTreeVarious() {
+        var dependencies = new DependencySet()
+            .include(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1,5,20)))
+            .include(new Dependency("com.stripe", "stripe-java", new VersionNumber(20,136,0)))
+            .include(new Dependency("org.json", "json", new VersionNumber(20230227)))
+            .include(new Dependency("com.itextpdf", "itext7-core", new VersionNumber(7,2,5)))
+            .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2,0,7)))
+            .include(new Dependency("org.apache.thrift", "libthrift", new VersionNumber(0,17,0)))
+            .include(new Dependency("commons-codec", "commons-codec", new VersionNumber(1,15)))
+            .include(new Dependency("org.apache.httpcomponents", "httpcore", new VersionNumber(4,4,16)))
+            .include(new Dependency("com.google.zxing", "javase", new VersionNumber(3,5,1)));
+        assertEquals("""
+            ├─ com.uwyn.rife2:rife2:1.5.20
+            ├─ com.stripe:stripe-java:20.136.0
+            ├─ org.json:json:20230227
+            ├─ com.itextpdf:itext7-core:7.2.5
+            │  ├─ com.itextpdf:barcodes:7.2.5
+            │  ├─ com.itextpdf:font-asian:7.2.5
+            │  ├─ com.itextpdf:forms:7.2.5
+            │  ├─ com.itextpdf:hyph:7.2.5
+            │  ├─ com.itextpdf:io:7.2.5
+            │  │  └─ com.itextpdf:commons:7.2.5
+            │  ├─ com.itextpdf:kernel:7.2.5
+            │  │  ├─ org.bouncycastle:bcpkix-jdk15on:1.70
+            │  │  │  └─ org.bouncycastle:bcutil-jdk15on:1.70
+            │  │  └─ org.bouncycastle:bcprov-jdk15on:1.70
+            │  ├─ com.itextpdf:layout:7.2.5
+            │  ├─ com.itextpdf:pdfa:7.2.5
+            │  ├─ com.itextpdf:sign:7.2.5
+            │  ├─ com.itextpdf:styled-xml-parser:7.2.5
+            │  └─ com.itextpdf:svg:7.2.5
+            ├─ org.slf4j:slf4j-simple:2.0.7
+            │  └─ org.slf4j:slf4j-api:2.0.7
+            ├─ org.apache.thrift:libthrift:0.17.0
+            ├─ commons-codec:commons-codec:1.15
+            ├─ org.apache.httpcomponents:httpcore:4.4.16
+            └─ com.google.zxing:javase:3.5.1
+               ├─ com.google.zxing:core:3.5.1
+               └─ com.beust:jcommander:1.82
+            """, dependencies.generateTransitiveDependencyTree(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL), compile));
+    }
+
+    @Test
+    void testGenerateDependencyTreeCompileRuntime() {
+        var dependencies = new DependencySet()
+            .include(new Dependency("net.thauvin.erik", "bitly-shorten", new VersionNumber(0, 9, 4, "SNAPSHOT")));
+        assertEquals("""
+            └─ net.thauvin.erik:bitly-shorten:0.9.4-SNAPSHOT
+               ├─ org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.8.20
+               │  ├─ org.jetbrains.kotlin:kotlin-stdlib:1.8.20
+               │  │  ├─ org.jetbrains.kotlin:kotlin-stdlib-common:1.8.20
+               │  │  └─ org.jetbrains:annotations:13.0
+               │  └─ org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.8.20
+               ├─ com.squareup.okhttp3:okhttp:4.10.0
+               │  └─ com.squareup.okio:okio-jvm:3.0.0
+               ├─ com.squareup.okhttp3:logging-interceptor:4.10.0
+               └─ org.json:json:20230227
+            """, dependencies.generateTransitiveDependencyTree(ArtifactRetriever.instance(), List.of(MAVEN_CENTRAL, SONATYPE_SNAPSHOTS_LEGACY), compile, runtime));
+    }
+}
diff --git a/src/test/java/rife/bld/dependencies/TestRepository.java b/src/test/java/rife/bld/dependencies/TestRepository.java
new file mode 100644
index 0000000..a5892ae
--- /dev/null
+++ b/src/test/java/rife/bld/dependencies/TestRepository.java
@@ -0,0 +1,123 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import org.junit.jupiter.api.Test;
+import rife.ioc.HierarchicalProperties;
+
+import java.nio.file.Path;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestRepository {
+    @Test
+    void testInstantiation() {
+        var repository1 = new Repository("http://my.repo");
+        assertNotNull(repository1);
+        assertEquals("http://my.repo", repository1.location());
+        assertNull(repository1.username());
+        assertNull(repository1.password());
+
+        var repository2 = new Repository("http://your.repo", "user1", "pass1");
+        assertNotNull(repository2);
+        assertEquals("http://your.repo", repository2.location());
+        assertEquals("user1", repository2.username());
+        assertEquals("pass1", repository2.password());
+    }
+
+    @Test
+    void testToString() {
+        var repository1 = new Repository("http://my.repo");
+        assertEquals("http://my.repo", repository1.toString());
+
+        var repository2 = new Repository("http://your.repo", null, "pass1");
+        assertEquals("http://your.repo", repository2.toString());
+
+        var repository3 = new Repository("http://your.repo", "user1", null);
+        assertEquals("http://your.repo:24c9e15e52afc47c225b757e7bee1f9d", repository3.toString());
+
+        var repository4 = new Repository("http://your.repo", "user1", "pass1");
+        assertEquals("http://your.repo:24c9e15e52afc47c225b757e7bee1f9d:a722c63db8ec8625af6cf71cb8c2d939", repository4.toString());
+    }
+
+    @Test
+    void testWithCredentials() {
+        var repository1 = new Repository("http://my.repo");
+        assertNotNull(repository1);
+        assertEquals("http://my.repo", repository1.location());
+        assertNull(repository1.username());
+        assertNull(repository1.password());
+
+        var repository2 = repository1.withCredentials("user1", "pass1");
+        assertNotNull(repository2);
+        assertEquals("http://my.repo", repository2.location());
+        assertEquals("user1", repository2.username());
+        assertEquals("pass1", repository2.password());
+
+        var repository3 = repository1.withCredentials("user2", "pass2");
+        assertNotNull(repository3);
+        assertEquals("http://my.repo", repository3.location());
+        assertEquals("user2", repository3.username());
+        assertEquals("pass2", repository3.password());
+    }
+
+    @Test
+    void testArtifactLocation() {
+        var repository1 = new Repository("http://my.repo");
+        assertNotNull(repository1);
+        assertEquals("http://my.repo/groupId1/artifactId1/", repository1.getArtifactLocation("groupId1", "artifactId1"));
+
+        var repository2 = new Repository("file:///local/repo");
+        assertNotNull(repository2);
+        assertEquals("/local/repo/groupId2/artifactId2/", repository2.getArtifactLocation("groupId2", "artifactId2"));
+
+        var repository3 = new Repository("/local/repo");
+        assertNotNull(repository3);
+        assertEquals("/local/repo/groupId3/artifactId3/", repository3.getArtifactLocation("groupId3", "artifactId3"));
+    }
+
+    @Test
+    void testIsLocal() {
+        assertFalse(new Repository("http://my.repo").isLocal());
+        assertTrue(new Repository("file:///local/repo").isLocal());
+        assertTrue(new Repository("//local/repo").isLocal());
+    }
+
+    @Test
+    void testResolveMavenLocal() {
+        var properties = new HierarchicalProperties();
+
+        Repository.MAVEN_LOCAL = null;
+        assertNull(Repository.MAVEN_LOCAL);
+
+        Repository.resolveMavenLocal(properties);
+        assertEquals(Path.of(System.getProperty("user.home"), ".m2", "repository").toString(), Repository.MAVEN_LOCAL.location());
+
+        properties.put("user.home", "/other/home");
+        Repository.resolveMavenLocal(properties);
+        assertEquals(Path.of("/other/home", ".m2", "repository").toString(), Repository.MAVEN_LOCAL.location());
+
+        properties.put("maven.repo.local", "/different/local");
+        Repository.resolveMavenLocal(properties);
+        assertEquals("/different/local", Repository.MAVEN_LOCAL.location());
+    }
+
+    @Test
+    void testResolveRepository() {
+        var properties = new HierarchicalProperties();
+
+        assertEquals(new Repository("myrepo"), Repository.resolveRepository(properties, "myrepo"));
+        assertEquals(new Repository("https://some.repo"), Repository.resolveRepository(properties, "https://some.repo"));
+
+        properties.put("bld.repo.therepo", "https://the.repo/is/here");
+        assertEquals(new Repository("https://the.repo/is/here"), Repository.resolveRepository(properties, "therepo"));
+
+        properties.put("bld.repo.therepo.username", "theuser");
+        assertEquals(new Repository("https://the.repo/is/here", "theuser", null), Repository.resolveRepository(properties, "therepo"));
+
+        properties.put("bld.repo.therepo.password", "thepassword");
+        assertEquals(new Repository("https://the.repo/is/here", "theuser", "thepassword"), Repository.resolveRepository(properties, "therepo"));
+    }
+}
diff --git a/src/test/java/rife/bld/dependencies/TestVersionNumber.java b/src/test/java/rife/bld/dependencies/TestVersionNumber.java
new file mode 100644
index 0000000..11dbf74
--- /dev/null
+++ b/src/test/java/rife/bld/dependencies/TestVersionNumber.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.dependencies;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestVersionNumber {
+    @Test
+    void testInstantiation() {
+        var version1 = new VersionNumber(1);
+        var version10 = new VersionNumber(1, 0);
+        var version100 = new VersionNumber(1, 0, 0);
+        var version100s = new VersionNumber(1, 0, 0, "SNAPSHOT");
+        assertEquals("1", version1.toString());
+        assertEquals("1.0", version10.toString());
+        assertEquals("1.0.0", version100.toString());
+        assertEquals("1.0.0-SNAPSHOT", version100s.toString());
+    }
+
+    @Test
+    void testParsing() {
+        assertEquals(VersionNumber.parse("1"), new VersionNumber(1, 0, 0, null));
+        assertEquals(VersionNumber.parse("1.0"), new VersionNumber(1, 0, 0, null));
+        assertEquals(VersionNumber.parse("1.0.0"), new VersionNumber(1, 0, 0, null));
+
+        assertEquals(VersionNumber.parse("1.2"), new VersionNumber(1, 2, 0, null));
+        assertEquals(VersionNumber.parse("1.2.3"), new VersionNumber(1, 2, 3, null));
+
+        assertEquals(VersionNumber.parse("1-rc1-SNAPSHOT"), new VersionNumber(1, 0, 0, "rc1-SNAPSHOT"));
+        assertEquals(VersionNumber.parse("1.2-rc1-SNAPSHOT"), new VersionNumber(1, 2, 0, "rc1-SNAPSHOT"));
+        assertEquals(VersionNumber.parse("1.2.3-rc1-SNAPSHOT"), new VersionNumber(1, 2, 3, "rc1-SNAPSHOT"));
+
+        assertEquals(VersionNumber.parse("11.22"), new VersionNumber(11, 22, 0, null));
+        assertEquals(VersionNumber.parse("11.22.33"), new VersionNumber(11, 22, 33, null));
+        assertEquals(VersionNumber.parse("11.22.33-eap"), new VersionNumber(11, 22, 33, "eap"));
+
+        assertEquals(VersionNumber.parse("11.fortyfour"), new VersionNumber(11, 0, 0, "fortyfour"));
+
+        assertEquals(VersionNumber.parse("1.0.0.0"), new VersionNumber(1, 0, 0, "0"));
+        assertEquals(VersionNumber.parse("1.0.0.0.0.0.0"), new VersionNumber(1, 0, 0, "0.0.0.0"));
+        assertEquals(VersionNumber.parse("1.2.3.4-rc1-SNAPSHOT"), new VersionNumber(1, 2, 3, "4-rc1-SNAPSHOT"));
+        assertEquals(VersionNumber.parse("1.2.3.4.rc1-SNAPSHOT"), new VersionNumber(1, 2, 3, "4.rc1-SNAPSHOT"));
+
+        assertEquals(VersionNumber.parse("1.2.3_4"), new VersionNumber(1, 2, 0, "3_4"));
+        assertEquals(VersionNumber.parse("1.54b"), new VersionNumber(1, 0, 0, "54b"));
+    }
+
+    @Test
+    void testIsSnapshot() {
+        assertFalse(new VersionNumber(1, 0, 0, null).isSnapshot());
+        assertFalse(new VersionNumber(1, 2, 3, null).isSnapshot());
+        assertTrue(new VersionNumber(1, 0, 0, "rc1-SNAPSHOT").isSnapshot());
+        assertTrue(new VersionNumber(1, 2, 0, "rc1-SNAPSHOT").isSnapshot());
+        assertTrue(new VersionNumber(1, 2, 3, "rc1-SNAPSHOT").isSnapshot());
+        assertFalse(new VersionNumber(11, 22, 33, "eap").isSnapshot());
+        assertFalse(new VersionNumber(11, 0, 0, "fortyfour").isSnapshot());
+        assertTrue(new VersionNumber(1, 2, 3, "4-rc1-SNAPSHOT").isSnapshot());
+    }
+
+    @Test
+    void testInvalidParsed() {
+        assertEquals(VersionNumber.parse(null), VersionNumber.UNKNOWN);
+        assertEquals(VersionNumber.parse(""), VersionNumber.UNKNOWN);
+        assertEquals(VersionNumber.parse("foo"), VersionNumber.UNKNOWN);
+        assertEquals(VersionNumber.parse("1."), VersionNumber.UNKNOWN);
+        assertEquals(VersionNumber.parse("1.2.3-"), VersionNumber.UNKNOWN);
+        assertEquals(VersionNumber.parse("."), VersionNumber.UNKNOWN);
+        assertEquals(VersionNumber.parse("_"), VersionNumber.UNKNOWN);
+        assertEquals(VersionNumber.parse("-"), VersionNumber.UNKNOWN);
+        assertEquals(VersionNumber.parse(".1"), VersionNumber.UNKNOWN);
+        assertEquals(VersionNumber.parse("a.1"), VersionNumber.UNKNOWN);
+        assertEquals(VersionNumber.parse("1_2"), VersionNumber.UNKNOWN);
+        assertEquals(VersionNumber.parse("1_2_2"), VersionNumber.UNKNOWN);
+    }
+
+    @Test
+    void testAccessors() {
+        var version = new VersionNumber(1, 2, 3, "beta");
+
+        assertEquals(1, version.major());
+        assertEquals(2, version.minor());
+        assertEquals(3, version.revision());
+        assertEquals("beta", version.qualifier());
+    }
+
+    @Test
+    void testStringRepresentation() {
+        assertEquals(VersionNumber.parse("1.0").toString(), "1.0");
+        assertEquals(VersionNumber.parse("1.2.3").toString(), "1.2.3");
+        assertEquals(VersionNumber.parse("1.2.3-4").toString(), "1.2.3-4");
+        assertEquals(VersionNumber.parse("1.2.3.4").toString(), "1.2.3.4");
+        assertEquals(VersionNumber.parse("1-rc-1").toString(), "1-rc-1");
+        assertEquals(VersionNumber.parse("1.2.3-rc-1").toString(), "1.2.3-rc-1");
+        assertEquals(VersionNumber.parse("1.2.3.rc-1").toString(), "1.2.3.rc-1");
+    }
+
+    @Test
+    void testEquality() {
+        var version = new VersionNumber(1, 1, 1, null);
+        var qualified = new VersionNumber(1, 1, 1, "beta-2");
+
+        assertEquals(new VersionNumber(1, 1, 1, null), version);
+        assertNotEquals(new VersionNumber(2, 1, 1, null), version);
+        assertNotEquals(new VersionNumber(1, 2, 1, null), version);
+        assertNotEquals(new VersionNumber(1, 1, 2, null), version);
+        assertNotEquals(new VersionNumber(1, 1, 1, "rc"), version);
+        assertEquals(new VersionNumber(1, 1, 1, "beta-2"), qualified);
+        assertNotEquals(new VersionNumber(1, 1, 1, "beta-3"), qualified);
+    }
+
+    @Test
+    void testComparison() {
+        assertEquals(0, new VersionNumber(1, 1, 1, null).compareTo(new VersionNumber(1, 1, 1, null)));
+
+        assertTrue(new VersionNumber(2, 1, 1, null).compareTo(new VersionNumber(1, 1, 1, null)) > 0);
+        assertTrue(new VersionNumber(1, 2, 1, null).compareTo(new VersionNumber(1, 1, 1, null)) > 0);
+        assertTrue(new VersionNumber(1, 1, 2, null).compareTo(new VersionNumber(1, 1, 1, null)) > 0);
+
+        assertTrue(new VersionNumber(1, 1, 1, "rc").compareTo(new VersionNumber(1, 1, 1, null)) < 0);
+        assertTrue(new VersionNumber(1, 1, 1, "beta").compareTo(new VersionNumber(1, 1, 1, "alpha")) > 0);
+        assertTrue(new VersionNumber(1, 1, 1, "RELEASE").compareTo(new VersionNumber(1, 1, 1, "beta")) > 0);
+        assertTrue(new VersionNumber(1, 1, 1, "SNAPSHOT").compareTo(new VersionNumber(1, 1, 1, null)) < 0);
+
+        assertTrue(new VersionNumber(1, 1, 1, null).compareTo(new VersionNumber(2, 1, 1, null)) < 0);
+        assertTrue(new VersionNumber(1, 1, 1, null).compareTo(new VersionNumber(1, 2, 1, null)) < 0);
+        assertTrue(new VersionNumber(1, 1, 1, null).compareTo(new VersionNumber(1, 1, 2, null)) < 0);
+        assertTrue(new VersionNumber(1, 1, 1, null).compareTo(new VersionNumber(1, 1, 1, "rc")) > 0);
+        assertTrue(new VersionNumber(1, 1, 1, "alpha").compareTo(new VersionNumber(1, 1, 1, "beta")) < 0);
+        assertTrue(new VersionNumber(1, 1, 1, "beta").compareTo(new VersionNumber(1, 1, 1, "RELEASE")) < 0);
+    }
+
+    @Test
+    void testBaseVersion() {
+        assertEquals(new VersionNumber(1, 2, 3, null).getBaseVersion(), new VersionNumber(1, 2, 3, null));
+        assertEquals(new VersionNumber(1, 2, 3, "beta").getBaseVersion(), new VersionNumber(1, 2, 3, null));
+    }
+
+    @Test
+    void testWithQualifier() {
+        assertEquals(new VersionNumber(1, 2, 3, null).withQualifier("SNAPSHOT"), new VersionNumber(1, 2, 3, "SNAPSHOT"));
+        assertEquals(new VersionNumber(1, 2, 3, "beta").withQualifier("SNAPSHOT"), new VersionNumber(1, 2, 3, "SNAPSHOT"));
+        assertEquals(new VersionNumber(1, 2, 4, "beta").withQualifier(null), new VersionNumber(1, 2, 4, null));
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestCleanOperation.java b/src/test/java/rife/bld/operations/TestCleanOperation.java
new file mode 100644
index 0000000..d5f24f1
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestCleanOperation.java
@@ -0,0 +1,161 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.WebProject;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestCleanOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new CleanOperation();
+        assertTrue(operation.directories().isEmpty());
+    }
+
+    @Test
+    void testPopulation() {
+        var dir1 = new File("dir1");
+        var dir2 = new File("dir2");
+        var dir3 = new File("dir3");
+
+        var operation1 = new CleanOperation();
+        operation1.directories(List.of(dir1, dir2, dir3));
+        assertFalse(operation1.directories().isEmpty());
+        assertTrue(operation1.directories().contains(dir1));
+        assertTrue(operation1.directories().contains(dir2));
+        assertTrue(operation1.directories().contains(dir3));
+
+        var operation2 = new CleanOperation();
+        operation2.directories().add(dir1);
+        operation2.directories().add(dir2);
+        operation2.directories().add(dir3);
+        assertFalse(operation2.directories().isEmpty());
+        assertTrue(operation2.directories().contains(dir1));
+        assertTrue(operation2.directories().contains(dir2));
+        assertTrue(operation2.directories().contains(dir3));
+
+        var operation3 = new CleanOperation();
+        operation3.directories(dir1, dir2, dir3);
+        assertFalse(operation3.directories().isEmpty());
+        assertTrue(operation3.directories().contains(dir1));
+        assertTrue(operation3.directories().contains(dir2));
+        assertTrue(operation3.directories().contains(dir3));
+    }
+
+    @Test
+    void testExecute()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var dir1 = new File(tmp, "dir1");
+            var dir2 = new File(tmp, "dir2");
+            var dir3 = new File(tmp, "dir3");
+            dir1.mkdirs();
+            dir2.mkdirs();
+            dir3.mkdirs();
+
+            var file1 = new File(dir1, "file1");
+            var file2 = new File(dir2, "file2");
+            var file3 = new File(dir3, "file3");
+            file1.createNewFile();
+            file2.createNewFile();
+            file3.createNewFile();
+
+            FileUtils.writeString("content1", file1);
+            FileUtils.writeString("content2", file2);
+            FileUtils.writeString("content3", file3);
+
+            assertEquals(1, dir1.list().length);
+            assertEquals(1, dir2.list().length);
+            assertEquals(1, dir3.list().length);
+
+            new CleanOperation().directories(List.of(dir1, dir2)).execute();
+
+            assertFalse(dir1.exists());
+            assertFalse(dir2.exists());
+            assertTrue(dir3.exists());
+
+            assertEquals(1, dir3.list().length);
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    static class TestProject extends WebProject {
+        public TestProject(File tmp) {
+            workDirectory = tmp;
+            pkg = "test.pkg";
+        }
+    }
+
+    @Test
+    void testFromProject()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var project = new TestProject(tmp);
+
+            project.createProjectStructure();
+            project.createBuildStructure();
+            assertEquals("""
+                    /build
+                    /build/bld
+                    /build/dist
+                    /build/javadoc
+                    /build/main
+                    /build/test
+                    /lib
+                    /lib/bld
+                    /lib/compile
+                    /lib/runtime
+                    /lib/standalone
+                    /lib/test
+                    /src
+                    /src/bld
+                    /src/bld/java
+                    /src/bld/resources
+                    /src/main
+                    /src/main/java
+                    /src/main/resources
+                    /src/main/resources/templates
+                    /src/test
+                    /src/test/java
+                    /src/test/resources""",
+                FileUtils.generateDirectoryListing(tmp));
+
+            new CleanOperation().fromProject(project).execute();
+            assertEquals("""
+                    /build
+                    /build/bld
+                    /lib
+                    /lib/bld
+                    /lib/compile
+                    /lib/runtime
+                    /lib/standalone
+                    /lib/test
+                    /src
+                    /src/bld
+                    /src/bld/java
+                    /src/bld/resources
+                    /src/main
+                    /src/main/java
+                    /src/main/resources
+                    /src/main/resources/templates
+                    /src/test
+                    /src/test/java
+                    /src/test/resources""",
+                FileUtils.generateDirectoryListing(tmp));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestCompileOperation.java b/src/test/java/rife/bld/operations/TestCompileOperation.java
new file mode 100644
index 0000000..51bbb88
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestCompileOperation.java
@@ -0,0 +1,321 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.operations.exceptions.ExitStatusException;
+import rife.tools.FileUtils;
+
+import javax.tools.DiagnosticCollector;
+import javax.tools.JavaFileObject;
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestCompileOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new CompileOperation();
+        assertNull(operation.buildMainDirectory());
+        assertNull(operation.buildTestDirectory());
+        assertTrue(operation.compileMainClasspath().isEmpty());
+        assertTrue(operation.compileTestClasspath().isEmpty());
+        assertTrue(operation.mainSourceFiles().isEmpty());
+        assertTrue(operation.testSourceFiles().isEmpty());
+        assertTrue(operation.testSourceDirectories().isEmpty());
+        assertTrue(operation.testSourceDirectories().isEmpty());
+        assertTrue(operation.compileOptions().isEmpty());
+        assertTrue(operation.diagnostics().isEmpty());
+    }
+
+    @Test
+    void testPopulation() {
+        var build_main_directory = new File("buildMainDirectory");
+        var build_test_directory = new File("buildTestDirectory");
+        var compile_main_classpath1 = "compileMainClasspath1";
+        var compile_main_classpath2 = "compileMainClasspath2";
+        var compile_test_classpath1 = "compileTestClasspath1";
+        var compile_test_classpath2 = "compileTestClasspath2";
+        var main_source_file1 = new File("mainSourceFile1");
+        var main_source_file2 = new File("mainSourceFile2");
+        var test_source_file1 = new File("testSourceFile1");
+        var test_source_file2 = new File("testSourceFile2");
+        var main_source_directory1 = new File("mainSourceDirectory1");
+        var main_source_directory2 = new File("mainSourceDirectory2");
+        var test_source_directory1 = new File("testSourceDirectory1");
+        var test_source_directory2 = new File("testSourceDirectory2");
+        var compile_option1 = "compileOption1";
+        var compile_option2 = "compileOption2";
+
+        var operation1 = new CompileOperation()
+            .buildMainDirectory(build_main_directory)
+            .buildTestDirectory(build_test_directory)
+            .compileMainClasspath(List.of(compile_main_classpath1, compile_main_classpath2))
+            .compileTestClasspath(List.of(compile_test_classpath1, compile_test_classpath2))
+            .mainSourceFiles(List.of(main_source_file1, main_source_file2))
+            .testSourceFiles(List.of(test_source_file1, test_source_file2))
+            .mainSourceDirectories(List.of(main_source_directory1, main_source_directory2))
+            .testSourceDirectories(List.of(test_source_directory1, test_source_directory2))
+            .compileOptions(List.of(compile_option1, compile_option2));
+
+        assertEquals(build_main_directory, operation1.buildMainDirectory());
+        assertEquals(build_test_directory, operation1.buildTestDirectory());
+        assertTrue(operation1.compileMainClasspath().contains(compile_main_classpath1));
+        assertTrue(operation1.compileMainClasspath().contains(compile_main_classpath2));
+        assertTrue(operation1.compileTestClasspath().contains(compile_test_classpath1));
+        assertTrue(operation1.compileTestClasspath().contains(compile_test_classpath2));
+        assertTrue(operation1.mainSourceFiles().contains(main_source_file1));
+        assertTrue(operation1.mainSourceFiles().contains(main_source_file2));
+        assertTrue(operation1.testSourceFiles().contains(test_source_file1));
+        assertTrue(operation1.testSourceFiles().contains(test_source_file2));
+        assertTrue(operation1.mainSourceDirectories().contains(main_source_directory1));
+        assertTrue(operation1.mainSourceDirectories().contains(main_source_directory2));
+        assertTrue(operation1.testSourceDirectories().contains(test_source_directory1));
+        assertTrue(operation1.testSourceDirectories().contains(test_source_directory2));
+        assertTrue(operation1.compileOptions().contains(compile_option1));
+        assertTrue(operation1.compileOptions().contains(compile_option2));
+
+        var operation2 = new CompileOperation()
+            .buildMainDirectory(build_main_directory)
+            .buildTestDirectory(build_test_directory);
+        operation2.compileMainClasspath().add(compile_main_classpath1);
+        operation2.compileMainClasspath().add(compile_main_classpath2);
+        operation2.compileTestClasspath().add(compile_test_classpath1);
+        operation2.compileTestClasspath().add(compile_test_classpath2);
+        operation2.mainSourceFiles().add(main_source_file1);
+        operation2.mainSourceFiles().add(main_source_file2);
+        operation2.testSourceFiles().add(test_source_file1);
+        operation2.testSourceFiles().add(test_source_file2);
+        operation2.mainSourceDirectories().add(main_source_directory1);
+        operation2.mainSourceDirectories().add(main_source_directory2);
+        operation2.testSourceDirectories().add(test_source_directory1);
+        operation2.testSourceDirectories().add(test_source_directory2);
+        operation2.compileOptions().add(compile_option1);
+        operation2.compileOptions().add(compile_option2);
+
+        assertEquals(build_main_directory, operation2.buildMainDirectory());
+        assertEquals(build_test_directory, operation2.buildTestDirectory());
+        assertTrue(operation2.compileMainClasspath().contains(compile_main_classpath1));
+        assertTrue(operation2.compileMainClasspath().contains(compile_main_classpath2));
+        assertTrue(operation2.compileTestClasspath().contains(compile_test_classpath1));
+        assertTrue(operation2.compileTestClasspath().contains(compile_test_classpath2));
+        assertTrue(operation2.mainSourceFiles().contains(main_source_file1));
+        assertTrue(operation2.mainSourceFiles().contains(main_source_file2));
+        assertTrue(operation2.testSourceFiles().contains(test_source_file1));
+        assertTrue(operation2.testSourceFiles().contains(test_source_file2));
+        assertTrue(operation2.mainSourceDirectories().contains(main_source_directory1));
+        assertTrue(operation2.mainSourceDirectories().contains(main_source_directory2));
+        assertTrue(operation2.testSourceDirectories().contains(test_source_directory1));
+        assertTrue(operation2.testSourceDirectories().contains(test_source_directory2));
+        assertTrue(operation2.compileOptions().contains(compile_option1));
+        assertTrue(operation2.compileOptions().contains(compile_option2));
+
+        var operation3 = new CompileOperation()
+            .buildMainDirectory(build_main_directory)
+            .buildTestDirectory(build_test_directory)
+            .compileMainClasspath(compile_main_classpath1, compile_main_classpath2)
+            .compileTestClasspath(compile_test_classpath1, compile_test_classpath2)
+            .mainSourceFiles(main_source_file1, main_source_file2)
+            .testSourceFiles(test_source_file1, test_source_file2)
+            .mainSourceDirectories(main_source_directory1, main_source_directory2)
+            .testSourceDirectories(test_source_directory1, test_source_directory2)
+            .compileOptions(List.of(compile_option1, compile_option2));
+
+        assertEquals(build_main_directory, operation3.buildMainDirectory());
+        assertEquals(build_test_directory, operation3.buildTestDirectory());
+        assertTrue(operation3.compileMainClasspath().contains(compile_main_classpath1));
+        assertTrue(operation3.compileMainClasspath().contains(compile_main_classpath2));
+        assertTrue(operation3.compileTestClasspath().contains(compile_test_classpath1));
+        assertTrue(operation3.compileTestClasspath().contains(compile_test_classpath2));
+        assertTrue(operation3.mainSourceFiles().contains(main_source_file1));
+        assertTrue(operation3.mainSourceFiles().contains(main_source_file2));
+        assertTrue(operation3.testSourceFiles().contains(test_source_file1));
+        assertTrue(operation3.testSourceFiles().contains(test_source_file2));
+        assertTrue(operation3.mainSourceDirectories().contains(main_source_directory1));
+        assertTrue(operation3.mainSourceDirectories().contains(main_source_directory2));
+        assertTrue(operation3.testSourceDirectories().contains(test_source_directory1));
+        assertTrue(operation3.testSourceDirectories().contains(test_source_directory2));
+        assertTrue(operation3.compileOptions().contains(compile_option1));
+        assertTrue(operation3.compileOptions().contains(compile_option2));
+    }
+
+    @Test
+    void testExecute()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var source_file1 = new File(tmp, "Source1.java");
+            var source_file2 = new File(tmp, "Source2.java");
+            var source_file3 = new File(tmp, "Source3.java");
+
+            FileUtils.writeString("""
+                public class Source1 {
+                    public final String name_;
+                    public Source1() {
+                        name_ = "source1";
+                    }
+                }
+                """, source_file1);
+
+            FileUtils.writeString("""
+                public class Source2 {
+                    public final String name_;
+                    public Source2(Source1 source1) {
+                        name_ = source1.name_;
+                    }
+                }
+                """, source_file2);
+
+            FileUtils.writeString("""
+                public class Source3 {
+                    public final String name1_;
+                    public final String name2_;
+                    public Source3(Source1 source1, Source2 source2) {
+                        name1_ = source1.name_;
+                        name2_ = source2.name_;
+                    }
+                }
+                """, source_file3);
+            var build_main = new File(tmp, "buildMain");
+            var build_test = new File(tmp, "buildTest");
+            var build_main_class1 = new File(build_main, "Source1.class");
+            var build_main_class2 = new File(build_main, "Source2.class");
+            var build_test_class3 = new File(build_test, "Source3.class");
+
+            assertFalse(build_main_class1.exists());
+            assertFalse(build_main_class2.exists());
+            assertFalse(build_test_class3.exists());
+
+            var operation = new CompileOperation()
+                .buildMainDirectory(build_main)
+                .buildTestDirectory(build_test)
+                .compileMainClasspath(List.of(build_main.getAbsolutePath()))
+                .compileTestClasspath(List.of(build_main.getAbsolutePath(), build_test.getAbsolutePath()))
+                .mainSourceFiles(List.of(source_file1, source_file2))
+                .testSourceFiles(List.of(source_file3));
+            operation.execute();
+            assertTrue(operation.diagnostics().isEmpty());
+
+            assertTrue(build_main_class1.exists());
+            assertTrue(build_main_class2.exists());
+            assertTrue(build_test_class3.exists());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testFromProject()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateBlankOperation()
+                .workDirectory(tmp)
+                .packageName("tst")
+                .projectName("app")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            var compile_operation = new CompileOperation()
+                .fromProject(create_operation.project());
+
+            var main_app_class = new File(new File(compile_operation.buildMainDirectory(), "tst"), "AppMain.class");
+            var test_app_class = new File(new File(compile_operation.buildTestDirectory(), "tst"), "AppTest.class");
+            assertFalse(main_app_class.exists());
+            assertFalse(test_app_class.exists());
+
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+
+            assertTrue(main_app_class.exists());
+            assertTrue(test_app_class.exists());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testExecuteCompilationErrors()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var source_file1 = new File(tmp, "Source1.java");
+            var source_file2 = new File(tmp, "Source2.java");
+            var source_file3 = new File(tmp, "Source3.java");
+
+            FileUtils.writeString("""
+                public class Source1 {
+                    public final String;
+                    public Source1() {
+                        name_ = "source1";
+                    }
+                }
+                """, source_file1);
+
+            FileUtils.writeString("""
+                public class Source2 {
+                    public final String name_;
+                    public Source2(Source1B source1) {
+                        noName_ = source1.name_;
+                    }
+                }
+                """, source_file2);
+
+            FileUtils.writeString("""
+                public class Source3 {
+                    public final String name1_;
+                    public final String name2_;
+                    public Source3(Source1 source1, Source2 source2) {
+                        name_ = source1.name_;
+                        name_ = source2.name_;
+                    }
+                }
+                """, source_file3);
+            var build_main = new File(tmp, "buildMain");
+            var build_test = new File(tmp, "buildTest");
+            var build_main_class1 = new File(build_main, "Source1.class");
+            var build_main_class2 = new File(build_main, "Source2.class");
+            var build_test_class3 = new File(build_test, "Source3.class");
+
+            assertFalse(build_main_class1.exists());
+            assertFalse(build_main_class2.exists());
+            assertFalse(build_test_class3.exists());
+
+            var operation = new CompileOperation() {
+                public void executeProcessDiagnostics(DiagnosticCollector<JavaFileObject> diagnostics) {
+                    // don't output diagnostics
+                }
+            };
+            operation.buildMainDirectory(build_main)
+                .buildTestDirectory(build_test)
+                .compileMainClasspath(List.of(build_main.getAbsolutePath()))
+                .compileTestClasspath(List.of(build_main.getAbsolutePath(), build_test.getAbsolutePath()))
+                .mainSourceFiles(List.of(source_file1, source_file2))
+                .testSourceFiles(List.of(source_file3));
+            assertThrows(ExitStatusException.class, operation::execute);
+            assertEquals(5, operation.diagnostics().size());
+
+            var diagnostic1 = operation.diagnostics().get(0);
+            var diagnostic2 = operation.diagnostics().get(1);
+            var diagnostic3 = operation.diagnostics().get(2);
+            var diagnostic4 = operation.diagnostics().get(3);
+            var diagnostic5 = operation.diagnostics().get(4);
+
+            assertEquals("/Source1.java", diagnostic1.getSource().toUri().getPath().substring(tmp.getAbsolutePath().length()));
+            assertEquals("/Source3.java", diagnostic2.getSource().toUri().getPath().substring(tmp.getAbsolutePath().length()));
+            assertEquals("/Source3.java", diagnostic3.getSource().toUri().getPath().substring(tmp.getAbsolutePath().length()));
+            assertEquals("/Source3.java", diagnostic4.getSource().toUri().getPath().substring(tmp.getAbsolutePath().length()));
+            assertEquals("/Source3.java", diagnostic5.getSource().toUri().getPath().substring(tmp.getAbsolutePath().length()));
+
+            assertFalse(build_main_class1.exists());
+            assertFalse(build_main_class2.exists());
+            assertFalse(build_test_class3.exists());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestCreateBaseOperation.java b/src/test/java/rife/bld/operations/TestCreateBaseOperation.java
new file mode 100644
index 0000000..ee8ed6f
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestCreateBaseOperation.java
@@ -0,0 +1,332 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.dependencies.LocalDependency;
+import rife.bld.dependencies.Scope;
+import rife.bld.operations.exceptions.ExitStatusException;
+import rife.tools.FileUtils;
+
+import javax.tools.DiagnosticCollector;
+import javax.tools.JavaFileObject;
+import java.io.File;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.regex.Pattern;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestCreateBaseOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new CreateBaseOperation();
+        assertNotNull(operation.workDirectory());
+        assertTrue(operation.workDirectory().exists());
+        assertTrue(operation.workDirectory().isDirectory());
+        assertTrue(operation.workDirectory().canWrite());
+        assertFalse(operation.downloadDependencies());
+        assertNull(operation.packageName());
+        assertNull(operation.projectName());
+    }
+
+    @Test
+    void testPopulation()
+    throws Exception {
+        var work_directory = Files.createTempDirectory("test").toFile();
+        try {
+            var download_dependencies = true;
+            var package_name = "packageName";
+            var project_name = "projectName";
+
+            var operation = new CreateBaseOperation();
+            operation
+                .workDirectory(work_directory)
+                .downloadDependencies(download_dependencies)
+                .packageName(package_name)
+                .projectName(project_name);
+
+            assertEquals(work_directory, operation.workDirectory());
+            assertEquals(download_dependencies, operation.downloadDependencies());
+            assertEquals(package_name, operation.packageName());
+            assertEquals(project_name, operation.projectName());
+        } finally {
+            FileUtils.deleteDirectory(work_directory);
+        }
+    }
+
+    @Test
+    void testExecute()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateBaseOperation()
+                .workDirectory(tmp)
+                .packageName("com.example")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            assertTrue(Pattern.compile("""
+                    /myapp
+                    /myapp/\\.gitignore
+                    /myapp/\\.idea
+                    /myapp/\\.idea/app\\.iml
+                    /myapp/\\.idea/bld\\.iml
+                    /myapp/\\.idea/libraries
+                    /myapp/\\.idea/libraries/bld\\.xml
+                    /myapp/\\.idea/libraries/compile\\.xml
+                    /myapp/\\.idea/libraries/runtime\\.xml
+                    /myapp/\\.idea/libraries/test\\.xml
+                    /myapp/\\.idea/misc\\.xml
+                    /myapp/\\.idea/modules\\.xml
+                    /myapp/\\.idea/runConfigurations
+                    /myapp/\\.idea/runConfigurations/Run Main\\.xml
+                    /myapp/\\.idea/runConfigurations/Run Tests\\.xml
+                    /myapp/\\.vscode
+                    /myapp/\\.vscode/launch\\.json
+                    /myapp/\\.vscode/settings\\.json
+                    /myapp/bld
+                    /myapp/bld\\.bat
+                    /myapp/lib
+                    /myapp/lib/bld
+                    /myapp/lib/bld/bld-wrapper\\.jar
+                    /myapp/lib/bld/bld-wrapper\\.properties
+                    /myapp/lib/compile
+                    /myapp/lib/runtime
+                    /myapp/lib/test
+                    /myapp/src
+                    /myapp/src/bld
+                    /myapp/src/bld/java
+                    /myapp/src/bld/java/com
+                    /myapp/src/bld/java/com/example
+                    /myapp/src/bld/java/com/example/MyappBuild\\.java
+                    /myapp/src/bld/resources
+                    /myapp/src/main
+                    /myapp/src/main/java
+                    /myapp/src/main/java/com
+                    /myapp/src/main/java/com/example
+                    /myapp/src/main/java/com/example/MyappMain\\.java
+                    /myapp/src/main/resources
+                    /myapp/src/main/resources/templates
+                    /myapp/src/test
+                    /myapp/src/test/java
+                    /myapp/src/test/java/com
+                    /myapp/src/test/java/com/example
+                    /myapp/src/test/java/com/example/MyappTest\\.java
+                    /myapp/src/test/resources""").matcher(FileUtils.generateDirectoryListing(tmp)).matches());
+
+            var compile_operation = new CompileOperation().fromProject(create_operation.project());
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+            assertTrue(Pattern.compile("""
+                    /myapp
+                    /myapp/\\.gitignore
+                    /myapp/\\.idea
+                    /myapp/\\.idea/app\\.iml
+                    /myapp/\\.idea/bld\\.iml
+                    /myapp/\\.idea/libraries
+                    /myapp/\\.idea/libraries/bld\\.xml
+                    /myapp/\\.idea/libraries/compile\\.xml
+                    /myapp/\\.idea/libraries/runtime\\.xml
+                    /myapp/\\.idea/libraries/test\\.xml
+                    /myapp/\\.idea/misc\\.xml
+                    /myapp/\\.idea/modules\\.xml
+                    /myapp/\\.idea/runConfigurations
+                    /myapp/\\.idea/runConfigurations/Run Main\\.xml
+                    /myapp/\\.idea/runConfigurations/Run Tests\\.xml
+                    /myapp/\\.vscode
+                    /myapp/\\.vscode/launch\\.json
+                    /myapp/\\.vscode/settings\\.json
+                    /myapp/bld
+                    /myapp/bld\\.bat
+                    /myapp/build
+                    /myapp/build/main
+                    /myapp/build/main/com
+                    /myapp/build/main/com/example
+                    /myapp/build/main/com/example/MyappMain\\.class
+                    /myapp/build/test
+                    /myapp/build/test/com
+                    /myapp/build/test/com/example
+                    /myapp/build/test/com/example/MyappTest\\.class
+                    /myapp/lib
+                    /myapp/lib/bld
+                    /myapp/lib/bld/bld-wrapper\\.jar
+                    /myapp/lib/bld/bld-wrapper\\.properties
+                    /myapp/lib/compile
+                    /myapp/lib/runtime
+                    /myapp/lib/test
+                    /myapp/src
+                    /myapp/src/bld
+                    /myapp/src/bld/java
+                    /myapp/src/bld/java/com
+                    /myapp/src/bld/java/com/example
+                    /myapp/src/bld/java/com/example/MyappBuild\\.java
+                    /myapp/src/bld/resources
+                    /myapp/src/main
+                    /myapp/src/main/java
+                    /myapp/src/main/java/com
+                    /myapp/src/main/java/com/example
+                    /myapp/src/main/java/com/example/MyappMain\\.java
+                    /myapp/src/main/resources
+                    /myapp/src/main/resources/templates
+                    /myapp/src/test
+                    /myapp/src/test/java
+                    /myapp/src/test/java/com
+                    /myapp/src/test/java/com/example
+                    /myapp/src/test/java/com/example/MyappTest\\.java
+                    /myapp/src/test/resources""").matcher(FileUtils.generateDirectoryListing(tmp)).matches());
+
+            var check_result = new StringBuilder();
+            new RunOperation()
+                .fromProject(create_operation.project())
+                .outputProcessor(s -> {
+                    check_result.append(s);
+                    return true;
+                })
+                .execute();
+            assertEquals("Hello World!", check_result.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testExecuteNoDownload()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateBaseOperation()
+                .workDirectory(tmp)
+                .packageName("org.stuff")
+                .projectName("yourthing");
+            create_operation.execute();
+
+            assertEquals("""
+                    /yourthing
+                    /yourthing/.gitignore
+                    /yourthing/.idea
+                    /yourthing/.idea/app.iml
+                    /yourthing/.idea/bld.iml
+                    /yourthing/.idea/libraries
+                    /yourthing/.idea/libraries/bld.xml
+                    /yourthing/.idea/libraries/compile.xml
+                    /yourthing/.idea/libraries/runtime.xml
+                    /yourthing/.idea/libraries/test.xml
+                    /yourthing/.idea/misc.xml
+                    /yourthing/.idea/modules.xml
+                    /yourthing/.idea/runConfigurations
+                    /yourthing/.idea/runConfigurations/Run Main.xml
+                    /yourthing/.idea/runConfigurations/Run Tests.xml
+                    /yourthing/.vscode
+                    /yourthing/.vscode/launch.json
+                    /yourthing/.vscode/settings.json
+                    /yourthing/bld
+                    /yourthing/bld.bat
+                    /yourthing/lib
+                    /yourthing/lib/bld
+                    /yourthing/lib/bld/bld-wrapper.jar
+                    /yourthing/lib/bld/bld-wrapper.properties
+                    /yourthing/lib/compile
+                    /yourthing/lib/runtime
+                    /yourthing/lib/test
+                    /yourthing/src
+                    /yourthing/src/bld
+                    /yourthing/src/bld/java
+                    /yourthing/src/bld/java/org
+                    /yourthing/src/bld/java/org/stuff
+                    /yourthing/src/bld/java/org/stuff/YourthingBuild.java
+                    /yourthing/src/bld/resources
+                    /yourthing/src/main
+                    /yourthing/src/main/java
+                    /yourthing/src/main/java/org
+                    /yourthing/src/main/java/org/stuff
+                    /yourthing/src/main/java/org/stuff/YourthingMain.java
+                    /yourthing/src/main/resources
+                    /yourthing/src/main/resources/templates
+                    /yourthing/src/test
+                    /yourthing/src/test/java
+                    /yourthing/src/test/java/org
+                    /yourthing/src/test/java/org/stuff
+                    /yourthing/src/test/java/org/stuff/YourthingTest.java
+                    /yourthing/src/test/resources""",
+                FileUtils.generateDirectoryListing(tmp));
+
+            var compile_operation = new CompileOperation().fromProject(create_operation.project());
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+            assertEquals("""
+                    /yourthing
+                    /yourthing/.gitignore
+                    /yourthing/.idea
+                    /yourthing/.idea/app.iml
+                    /yourthing/.idea/bld.iml
+                    /yourthing/.idea/libraries
+                    /yourthing/.idea/libraries/bld.xml
+                    /yourthing/.idea/libraries/compile.xml
+                    /yourthing/.idea/libraries/runtime.xml
+                    /yourthing/.idea/libraries/test.xml
+                    /yourthing/.idea/misc.xml
+                    /yourthing/.idea/modules.xml
+                    /yourthing/.idea/runConfigurations
+                    /yourthing/.idea/runConfigurations/Run Main.xml
+                    /yourthing/.idea/runConfigurations/Run Tests.xml
+                    /yourthing/.vscode
+                    /yourthing/.vscode/launch.json
+                    /yourthing/.vscode/settings.json
+                    /yourthing/bld
+                    /yourthing/bld.bat
+                    /yourthing/build
+                    /yourthing/build/main
+                    /yourthing/build/main/org
+                    /yourthing/build/main/org/stuff
+                    /yourthing/build/main/org/stuff/YourthingMain.class
+                    /yourthing/build/test
+                    /yourthing/build/test/org
+                    /yourthing/build/test/org/stuff
+                    /yourthing/build/test/org/stuff/YourthingTest.class
+                    /yourthing/lib
+                    /yourthing/lib/bld
+                    /yourthing/lib/bld/bld-wrapper.jar
+                    /yourthing/lib/bld/bld-wrapper.properties
+                    /yourthing/lib/compile
+                    /yourthing/lib/runtime
+                    /yourthing/lib/test
+                    /yourthing/src
+                    /yourthing/src/bld
+                    /yourthing/src/bld/java
+                    /yourthing/src/bld/java/org
+                    /yourthing/src/bld/java/org/stuff
+                    /yourthing/src/bld/java/org/stuff/YourthingBuild.java
+                    /yourthing/src/bld/resources
+                    /yourthing/src/main
+                    /yourthing/src/main/java
+                    /yourthing/src/main/java/org
+                    /yourthing/src/main/java/org/stuff
+                    /yourthing/src/main/java/org/stuff/YourthingMain.java
+                    /yourthing/src/main/resources
+                    /yourthing/src/main/resources/templates
+                    /yourthing/src/test
+                    /yourthing/src/test/java
+                    /yourthing/src/test/java/org
+                    /yourthing/src/test/java/org/stuff
+                    /yourthing/src/test/java/org/stuff/YourthingTest.java
+                    /yourthing/src/test/resources""",
+                FileUtils.generateDirectoryListing(tmp));
+
+            var check_result = new StringBuilder();
+            new RunOperation()
+                .fromProject(create_operation.project())
+                .outputProcessor(s -> {
+                    check_result.append(s);
+                    return true;
+                })
+                .execute();
+            assertEquals("Hello World!", check_result.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestCreateBlankOperation.java b/src/test/java/rife/bld/operations/TestCreateBlankOperation.java
new file mode 100644
index 0000000..20e0290
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestCreateBlankOperation.java
@@ -0,0 +1,550 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.dependencies.LocalDependency;
+import rife.bld.dependencies.Scope;
+import rife.bld.operations.exceptions.ExitStatusException;
+import rife.tools.FileUtils;
+
+import javax.tools.DiagnosticCollector;
+import javax.tools.JavaFileObject;
+import java.io.File;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.regex.Pattern;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestCreateBlankOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new CreateBlankOperation();
+        assertNotNull(operation.workDirectory());
+        assertTrue(operation.workDirectory().exists());
+        assertTrue(operation.workDirectory().isDirectory());
+        assertTrue(operation.workDirectory().canWrite());
+        assertFalse(operation.downloadDependencies());
+        assertNull(operation.packageName());
+        assertNull(operation.projectName());
+    }
+
+    @Test
+    void testPopulation()
+    throws Exception {
+        var work_directory = Files.createTempDirectory("test").toFile();
+        try {
+            var download_dependencies = true;
+            var package_name = "packageName";
+            var project_name = "projectName";
+
+            var operation = new CreateBlankOperation();
+            operation
+                .workDirectory(work_directory)
+                .downloadDependencies(download_dependencies)
+                .packageName(package_name)
+                .projectName(project_name);
+
+            assertEquals(work_directory, operation.workDirectory());
+            assertEquals(download_dependencies, operation.downloadDependencies());
+            assertEquals(package_name, operation.packageName());
+            assertEquals(project_name, operation.projectName());
+        } finally {
+            FileUtils.deleteDirectory(work_directory);
+        }
+    }
+
+    @Test
+    void testExecute()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateBlankOperation()
+                .workDirectory(tmp)
+                .packageName("com.example")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            assertTrue(Pattern.compile("""
+                    /myapp
+                    /myapp/\\.gitignore
+                    /myapp/\\.idea
+                    /myapp/\\.idea/app\\.iml
+                    /myapp/\\.idea/bld\\.iml
+                    /myapp/\\.idea/libraries
+                    /myapp/\\.idea/libraries/bld\\.xml
+                    /myapp/\\.idea/libraries/compile\\.xml
+                    /myapp/\\.idea/libraries/runtime\\.xml
+                    /myapp/\\.idea/libraries/test\\.xml
+                    /myapp/\\.idea/misc\\.xml
+                    /myapp/\\.idea/modules\\.xml
+                    /myapp/\\.idea/runConfigurations
+                    /myapp/\\.idea/runConfigurations/Run Main\\.xml
+                    /myapp/\\.idea/runConfigurations/Run Tests\\.xml
+                    /myapp/\\.vscode
+                    /myapp/\\.vscode/launch\\.json
+                    /myapp/\\.vscode/settings\\.json
+                    /myapp/bld
+                    /myapp/bld\\.bat
+                    /myapp/lib
+                    /myapp/lib/bld
+                    /myapp/lib/bld/bld-wrapper\\.jar
+                    /myapp/lib/bld/bld-wrapper\\.properties
+                    /myapp/lib/compile
+                    /myapp/lib/runtime
+                    /myapp/lib/test
+                    /myapp/lib/test/apiguardian-api-1\\.1\\.2-sources\\.jar
+                    /myapp/lib/test/apiguardian-api-1\\.1\\.2\\.jar
+                    /myapp/lib/test/junit-jupiter-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-jupiter-api-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-api-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-jupiter-engine-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-engine-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-jupiter-params-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-params-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-platform-commons-1\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-platform-commons-1\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-platform-console-standalone-1\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-platform-console-standalone-1\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-platform-engine-1\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-platform-engine-1\\.9\\.3\\.jar
+                    /myapp/lib/test/opentest4j-1\\.2\\.0-sources\\.jar
+                    /myapp/lib/test/opentest4j-1\\.2\\.0\\.jar
+                    /myapp/src
+                    /myapp/src/bld
+                    /myapp/src/bld/java
+                    /myapp/src/bld/java/com
+                    /myapp/src/bld/java/com/example
+                    /myapp/src/bld/java/com/example/MyappBuild\\.java
+                    /myapp/src/bld/resources
+                    /myapp/src/main
+                    /myapp/src/main/java
+                    /myapp/src/main/java/com
+                    /myapp/src/main/java/com/example
+                    /myapp/src/main/java/com/example/MyappMain\\.java
+                    /myapp/src/main/resources
+                    /myapp/src/main/resources/templates
+                    /myapp/src/test
+                    /myapp/src/test/java
+                    /myapp/src/test/java/com
+                    /myapp/src/test/java/com/example
+                    /myapp/src/test/java/com/example/MyappTest\\.java
+                    /myapp/src/test/resources""").matcher(FileUtils.generateDirectoryListing(tmp)).matches());
+
+            var compile_operation = new CompileOperation().fromProject(create_operation.project());
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+            assertTrue(Pattern.compile("""
+                    /myapp
+                    /myapp/\\.gitignore
+                    /myapp/\\.idea
+                    /myapp/\\.idea/app\\.iml
+                    /myapp/\\.idea/bld\\.iml
+                    /myapp/\\.idea/libraries
+                    /myapp/\\.idea/libraries/bld\\.xml
+                    /myapp/\\.idea/libraries/compile\\.xml
+                    /myapp/\\.idea/libraries/runtime\\.xml
+                    /myapp/\\.idea/libraries/test\\.xml
+                    /myapp/\\.idea/misc\\.xml
+                    /myapp/\\.idea/modules\\.xml
+                    /myapp/\\.idea/runConfigurations
+                    /myapp/\\.idea/runConfigurations/Run Main\\.xml
+                    /myapp/\\.idea/runConfigurations/Run Tests\\.xml
+                    /myapp/\\.vscode
+                    /myapp/\\.vscode/launch\\.json
+                    /myapp/\\.vscode/settings\\.json
+                    /myapp/bld
+                    /myapp/bld\\.bat
+                    /myapp/build
+                    /myapp/build/main
+                    /myapp/build/main/com
+                    /myapp/build/main/com/example
+                    /myapp/build/main/com/example/MyappMain\\.class
+                    /myapp/build/test
+                    /myapp/build/test/com
+                    /myapp/build/test/com/example
+                    /myapp/build/test/com/example/MyappTest\\.class
+                    /myapp/lib
+                    /myapp/lib/bld
+                    /myapp/lib/bld/bld-wrapper\\.jar
+                    /myapp/lib/bld/bld-wrapper\\.properties
+                    /myapp/lib/compile
+                    /myapp/lib/runtime
+                    /myapp/lib/test
+                    /myapp/lib/test/apiguardian-api-1\\.1\\.2-sources\\.jar
+                    /myapp/lib/test/apiguardian-api-1\\.1\\.2\\.jar
+                    /myapp/lib/test/junit-jupiter-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-jupiter-api-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-api-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-jupiter-engine-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-engine-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-jupiter-params-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-params-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-platform-commons-1\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-platform-commons-1\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-platform-console-standalone-1\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-platform-console-standalone-1\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-platform-engine-1\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-platform-engine-1\\.9\\.3\\.jar
+                    /myapp/lib/test/opentest4j-1\\.2\\.0-sources\\.jar
+                    /myapp/lib/test/opentest4j-1\\.2\\.0\\.jar
+                    /myapp/src
+                    /myapp/src/bld
+                    /myapp/src/bld/java
+                    /myapp/src/bld/java/com
+                    /myapp/src/bld/java/com/example
+                    /myapp/src/bld/java/com/example/MyappBuild\\.java
+                    /myapp/src/bld/resources
+                    /myapp/src/main
+                    /myapp/src/main/java
+                    /myapp/src/main/java/com
+                    /myapp/src/main/java/com/example
+                    /myapp/src/main/java/com/example/MyappMain\\.java
+                    /myapp/src/main/resources
+                    /myapp/src/main/resources/templates
+                    /myapp/src/test
+                    /myapp/src/test/java
+                    /myapp/src/test/java/com
+                    /myapp/src/test/java/com/example
+                    /myapp/src/test/java/com/example/MyappTest\\.java
+                    /myapp/src/test/resources""").matcher(FileUtils.generateDirectoryListing(tmp)).matches());
+
+            var check_result = new StringBuilder();
+            new RunOperation()
+                .fromProject(create_operation.project())
+                .outputProcessor(s -> {
+                    check_result.append(s);
+                    return true;
+                })
+                .execute();
+            assertEquals("Hello World!", check_result.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testExecuteNoDownload()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateBlankOperation()
+                .workDirectory(tmp)
+                .packageName("org.stuff")
+                .projectName("yourthing");
+            create_operation.execute();
+
+            assertEquals("""
+                    /yourthing
+                    /yourthing/.gitignore
+                    /yourthing/.idea
+                    /yourthing/.idea/app.iml
+                    /yourthing/.idea/bld.iml
+                    /yourthing/.idea/libraries
+                    /yourthing/.idea/libraries/bld.xml
+                    /yourthing/.idea/libraries/compile.xml
+                    /yourthing/.idea/libraries/runtime.xml
+                    /yourthing/.idea/libraries/test.xml
+                    /yourthing/.idea/misc.xml
+                    /yourthing/.idea/modules.xml
+                    /yourthing/.idea/runConfigurations
+                    /yourthing/.idea/runConfigurations/Run Main.xml
+                    /yourthing/.idea/runConfigurations/Run Tests.xml
+                    /yourthing/.vscode
+                    /yourthing/.vscode/launch.json
+                    /yourthing/.vscode/settings.json
+                    /yourthing/bld
+                    /yourthing/bld.bat
+                    /yourthing/lib
+                    /yourthing/lib/bld
+                    /yourthing/lib/bld/bld-wrapper.jar
+                    /yourthing/lib/bld/bld-wrapper.properties
+                    /yourthing/lib/compile
+                    /yourthing/lib/runtime
+                    /yourthing/lib/test
+                    /yourthing/src
+                    /yourthing/src/bld
+                    /yourthing/src/bld/java
+                    /yourthing/src/bld/java/org
+                    /yourthing/src/bld/java/org/stuff
+                    /yourthing/src/bld/java/org/stuff/YourthingBuild.java
+                    /yourthing/src/bld/resources
+                    /yourthing/src/main
+                    /yourthing/src/main/java
+                    /yourthing/src/main/java/org
+                    /yourthing/src/main/java/org/stuff
+                    /yourthing/src/main/java/org/stuff/YourthingMain.java
+                    /yourthing/src/main/resources
+                    /yourthing/src/main/resources/templates
+                    /yourthing/src/test
+                    /yourthing/src/test/java
+                    /yourthing/src/test/java/org
+                    /yourthing/src/test/java/org/stuff
+                    /yourthing/src/test/java/org/stuff/YourthingTest.java
+                    /yourthing/src/test/resources""",
+                FileUtils.generateDirectoryListing(tmp));
+
+            var compile_operation = new CompileOperation() {
+                public void executeProcessDiagnostics(DiagnosticCollector<JavaFileObject> diagnostics) {
+                    // don't output errors
+                }
+            };
+            compile_operation.fromProject(create_operation.project());
+            assertThrows(ExitStatusException.class, compile_operation::execute);
+            var diagnostics = compile_operation.diagnostics();
+            assertEquals(4, diagnostics.size());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testExecuteLocalDependencies()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateBlankOperation()
+                .workDirectory(tmp)
+                .packageName("com.example")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            var project = create_operation.project();
+            var lib_local = new File(project.libDirectory(), "local");
+            lib_local.mkdirs();
+            for (var lib : FileUtils.getFileList(project.libCompileDirectory())) {
+                if (!lib.endsWith("-sources.jar")) {
+                    project.dependencies().scope(Scope.compile).include(new LocalDependency(Path.of("lib", "local", lib).toString()));
+                }
+                new File(project.libCompileDirectory(), lib).renameTo(new File(lib_local, lib));
+            }
+            for (var lib : FileUtils.getFileList(project.libTestDirectory())) {
+                if (!lib.endsWith("-sources.jar")) {
+                    project.dependencies().scope(Scope.test).include(new LocalDependency(Path.of("lib", "local", lib).toString()));
+                }
+                new File(project.libTestDirectory(), lib).renameTo(new File(lib_local, lib));
+            }
+
+            var compile_operation = new CompileOperation().fromProject(create_operation.project());
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+            System.out.println(FileUtils.generateDirectoryListing(tmp));
+            assertTrue(Pattern.compile("""
+                /myapp
+                /myapp/\\.gitignore
+                /myapp/\\.idea
+                /myapp/\\.idea/app\\.iml
+                /myapp/\\.idea/bld\\.iml
+                /myapp/\\.idea/libraries
+                /myapp/\\.idea/libraries/bld\\.xml
+                /myapp/\\.idea/libraries/compile\\.xml
+                /myapp/\\.idea/libraries/runtime\\.xml
+                /myapp/\\.idea/libraries/test\\.xml
+                /myapp/\\.idea/misc\\.xml
+                /myapp/\\.idea/modules\\.xml
+                /myapp/\\.idea/runConfigurations
+                /myapp/\\.idea/runConfigurations/Run Main\\.xml
+                /myapp/\\.idea/runConfigurations/Run Tests\\.xml
+                /myapp/\\.vscode
+                /myapp/\\.vscode/launch\\.json
+                /myapp/\\.vscode/settings\\.json
+                /myapp/bld
+                /myapp/bld\\.bat
+                /myapp/build
+                /myapp/build/main
+                /myapp/build/main/com
+                /myapp/build/main/com/example
+                /myapp/build/main/com/example/MyappMain\\.class
+                /myapp/build/test
+                /myapp/build/test/com
+                /myapp/build/test/com/example
+                /myapp/build/test/com/example/MyappTest\\.class
+                /myapp/lib
+                /myapp/lib/bld
+                /myapp/lib/bld/bld-wrapper\\.jar
+                /myapp/lib/bld/bld-wrapper\\.properties
+                /myapp/lib/compile
+                /myapp/lib/local
+                /myapp/lib/local/apiguardian-api-1\\.1\\.2-sources\\.jar
+                /myapp/lib/local/apiguardian-api-1\\.1\\.2\\.jar
+                /myapp/lib/local/junit-jupiter-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-jupiter-5\\.9\\.3\\.jar
+                /myapp/lib/local/junit-jupiter-api-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-jupiter-api-5\\.9\\.3\\.jar
+                /myapp/lib/local/junit-jupiter-engine-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-jupiter-engine-5\\.9\\.3\\.jar
+                /myapp/lib/local/junit-jupiter-params-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-jupiter-params-5\\.9\\.3\\.jar
+                /myapp/lib/local/junit-platform-commons-1\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-platform-commons-1\\.9\\.3\\.jar
+                /myapp/lib/local/junit-platform-console-standalone-1\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-platform-console-standalone-1\\.9\\.3\\.jar
+                /myapp/lib/local/junit-platform-engine-1\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-platform-engine-1\\.9\\.3\\.jar
+                /myapp/lib/local/opentest4j-1\\.2\\.0-sources\\.jar
+                /myapp/lib/local/opentest4j-1\\.2\\.0\\.jar
+                /myapp/lib/runtime
+                /myapp/lib/test
+                /myapp/src
+                /myapp/src/bld
+                /myapp/src/bld/java
+                /myapp/src/bld/java/com
+                /myapp/src/bld/java/com/example
+                /myapp/src/bld/java/com/example/MyappBuild\\.java
+                /myapp/src/bld/resources
+                /myapp/src/main
+                /myapp/src/main/java
+                /myapp/src/main/java/com
+                /myapp/src/main/java/com/example
+                /myapp/src/main/java/com/example/MyappMain\\.java
+                /myapp/src/main/resources
+                /myapp/src/main/resources/templates
+                /myapp/src/test
+                /myapp/src/test/java
+                /myapp/src/test/java/com
+                /myapp/src/test/java/com/example
+                /myapp/src/test/java/com/example/MyappTest\\.java
+                /myapp/src/test/resources""").matcher(FileUtils.generateDirectoryListing(tmp)).matches());
+
+            var check_result = new StringBuilder();
+            new RunOperation()
+                .fromProject(create_operation.project())
+                .outputProcessor(s -> {
+                    check_result.append(s);
+                    return true;
+                })
+                .execute();
+            assertEquals("Hello World!", check_result.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testExecuteLocalDependenciesFolders()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateBlankOperation()
+                .workDirectory(tmp)
+                .packageName("com.example")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            var project = create_operation.project();
+            var lib_local_compile = new File(project.libDirectory(), "local_compile");
+            lib_local_compile.mkdirs();
+            project.dependencies().scope(Scope.compile).include(new LocalDependency(Path.of("lib", "local_compile").toString()));
+            for (var lib : FileUtils.getFileList(project.libCompileDirectory())) {
+                new File(project.libCompileDirectory(), lib).renameTo(new File(lib_local_compile, lib));
+            }
+            var lib_local_test = new File(project.libDirectory(), "local_test");
+            lib_local_test.mkdirs();
+            project.dependencies().scope(Scope.test).include(new LocalDependency(Path.of("lib", "local_test").toString()));
+            for (var lib : FileUtils.getFileList(project.libTestDirectory())) {
+                new File(project.libTestDirectory(), lib).renameTo(new File(lib_local_test, lib));
+            }
+
+            var compile_operation = new CompileOperation().fromProject(create_operation.project());
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+            assertTrue(Pattern.compile("""
+                /myapp
+                /myapp/\\.gitignore
+                /myapp/\\.idea
+                /myapp/\\.idea/app\\.iml
+                /myapp/\\.idea/bld\\.iml
+                /myapp/\\.idea/libraries
+                /myapp/\\.idea/libraries/bld\\.xml
+                /myapp/\\.idea/libraries/compile\\.xml
+                /myapp/\\.idea/libraries/runtime\\.xml
+                /myapp/\\.idea/libraries/test\\.xml
+                /myapp/\\.idea/misc\\.xml
+                /myapp/\\.idea/modules\\.xml
+                /myapp/\\.idea/runConfigurations
+                /myapp/\\.idea/runConfigurations/Run Main\\.xml
+                /myapp/\\.idea/runConfigurations/Run Tests\\.xml
+                /myapp/\\.vscode
+                /myapp/\\.vscode/launch\\.json
+                /myapp/\\.vscode/settings\\.json
+                /myapp/bld
+                /myapp/bld\\.bat
+                /myapp/build
+                /myapp/build/main
+                /myapp/build/main/com
+                /myapp/build/main/com/example
+                /myapp/build/main/com/example/MyappMain\\.class
+                /myapp/build/test
+                /myapp/build/test/com
+                /myapp/build/test/com/example
+                /myapp/build/test/com/example/MyappTest\\.class
+                /myapp/lib
+                /myapp/lib/bld
+                /myapp/lib/bld/bld-wrapper\\.jar
+                /myapp/lib/bld/bld-wrapper\\.properties
+                /myapp/lib/compile
+                /myapp/lib/local_compile
+                /myapp/lib/local_test
+                /myapp/lib/local_test/apiguardian-api-1\\.1\\.2-sources\\.jar
+                /myapp/lib/local_test/apiguardian-api-1\\.1\\.2\\.jar
+                /myapp/lib/local_test/junit-jupiter-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-jupiter-5\\.9\\.3\\.jar
+                /myapp/lib/local_test/junit-jupiter-api-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-jupiter-api-5\\.9\\.3\\.jar
+                /myapp/lib/local_test/junit-jupiter-engine-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-jupiter-engine-5\\.9\\.3\\.jar
+                /myapp/lib/local_test/junit-jupiter-params-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-jupiter-params-5\\.9\\.3\\.jar
+                /myapp/lib/local_test/junit-platform-commons-1\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-platform-commons-1\\.9\\.3\\.jar
+                /myapp/lib/local_test/junit-platform-console-standalone-1\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-platform-console-standalone-1\\.9\\.3\\.jar
+                /myapp/lib/local_test/junit-platform-engine-1\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-platform-engine-1\\.9\\.3\\.jar
+                /myapp/lib/local_test/opentest4j-1\\.2\\.0-sources\\.jar
+                /myapp/lib/local_test/opentest4j-1\\.2\\.0\\.jar
+                /myapp/lib/runtime
+                /myapp/lib/test
+                /myapp/src
+                /myapp/src/bld
+                /myapp/src/bld/java
+                /myapp/src/bld/java/com
+                /myapp/src/bld/java/com/example
+                /myapp/src/bld/java/com/example/MyappBuild\\.java
+                /myapp/src/bld/resources
+                /myapp/src/main
+                /myapp/src/main/java
+                /myapp/src/main/java/com
+                /myapp/src/main/java/com/example
+                /myapp/src/main/java/com/example/MyappMain\\.java
+                /myapp/src/main/resources
+                /myapp/src/main/resources/templates
+                /myapp/src/test
+                /myapp/src/test/java
+                /myapp/src/test/java/com
+                /myapp/src/test/java/com/example
+                /myapp/src/test/java/com/example/MyappTest\\.java
+                /myapp/src/test/resources""").matcher(FileUtils.generateDirectoryListing(tmp)).matches());
+
+            var check_result = new StringBuilder();
+            new RunOperation()
+                .fromProject(create_operation.project())
+                .outputProcessor(s -> {
+                    check_result.append(s);
+                    return true;
+                })
+                .execute();
+            assertEquals("Hello World!", check_result.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestCreateLibOperation.java b/src/test/java/rife/bld/operations/TestCreateLibOperation.java
new file mode 100644
index 0000000..c54c09b
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestCreateLibOperation.java
@@ -0,0 +1,327 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.dependencies.LocalDependency;
+import rife.bld.dependencies.Scope;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.regex.Pattern;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestCreateLibOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new CreateLibOperation();
+        assertNotNull(operation.workDirectory());
+        assertTrue(operation.workDirectory().exists());
+        assertTrue(operation.workDirectory().isDirectory());
+        assertTrue(operation.workDirectory().canWrite());
+        assertFalse(operation.downloadDependencies());
+        assertNull(operation.packageName());
+        assertNull(operation.projectName());
+    }
+
+    @Test
+    void testPopulation()
+    throws Exception {
+        var work_directory = Files.createTempDirectory("test").toFile();
+        try {
+            var download_dependencies = true;
+            var package_name = "packageName";
+            var project_name = "projectName";
+
+            var operation = new CreateLibOperation();
+            operation
+                .workDirectory(work_directory)
+                .downloadDependencies(download_dependencies)
+                .packageName(package_name)
+                .projectName(project_name);
+
+            assertEquals(work_directory, operation.workDirectory());
+            assertEquals(download_dependencies, operation.downloadDependencies());
+            assertEquals(package_name, operation.packageName());
+            assertEquals(project_name, operation.projectName());
+        } finally {
+            FileUtils.deleteDirectory(work_directory);
+        }
+    }
+
+    @Test
+    void testExecute()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateLibOperation()
+                .workDirectory(tmp)
+                .packageName("com.example")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            assertEquals("""
+                /myapp
+                /myapp/.gitignore
+                /myapp/.idea
+                /myapp/.idea/app.iml
+                /myapp/.idea/bld.iml
+                /myapp/.idea/libraries
+                /myapp/.idea/libraries/bld.xml
+                /myapp/.idea/libraries/compile.xml
+                /myapp/.idea/libraries/runtime.xml
+                /myapp/.idea/libraries/test.xml
+                /myapp/.idea/misc.xml
+                /myapp/.idea/modules.xml
+                /myapp/.idea/runConfigurations
+                /myapp/.idea/runConfigurations/Run Tests.xml
+                /myapp/.vscode
+                /myapp/.vscode/launch.json
+                /myapp/.vscode/settings.json
+                /myapp/bld
+                /myapp/bld.bat
+                /myapp/lib
+                /myapp/lib/bld
+                /myapp/lib/bld/bld-wrapper.jar
+                /myapp/lib/bld/bld-wrapper.properties
+                /myapp/lib/compile
+                /myapp/lib/runtime
+                /myapp/lib/test
+                /myapp/src
+                /myapp/src/bld
+                /myapp/src/bld/java
+                /myapp/src/bld/java/com
+                /myapp/src/bld/java/com/example
+                /myapp/src/bld/java/com/example/MyappBuild.java
+                /myapp/src/bld/resources
+                /myapp/src/main
+                /myapp/src/main/java
+                /myapp/src/main/java/com
+                /myapp/src/main/java/com/example
+                /myapp/src/main/java/com/example/MyappLib.java
+                /myapp/src/main/resources
+                /myapp/src/main/resources/templates
+                /myapp/src/test
+                /myapp/src/test/java
+                /myapp/src/test/java/com
+                /myapp/src/test/java/com/example
+                /myapp/src/test/java/com/example/MyappTest.java
+                /myapp/src/test/resources""", FileUtils.generateDirectoryListing(tmp));
+
+            var compile_operation = new CompileOperation().fromProject(create_operation.project());
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+            assertEquals("""
+                /myapp
+                /myapp/.gitignore
+                /myapp/.idea
+                /myapp/.idea/app.iml
+                /myapp/.idea/bld.iml
+                /myapp/.idea/libraries
+                /myapp/.idea/libraries/bld.xml
+                /myapp/.idea/libraries/compile.xml
+                /myapp/.idea/libraries/runtime.xml
+                /myapp/.idea/libraries/test.xml
+                /myapp/.idea/misc.xml
+                /myapp/.idea/modules.xml
+                /myapp/.idea/runConfigurations
+                /myapp/.idea/runConfigurations/Run Tests.xml
+                /myapp/.vscode
+                /myapp/.vscode/launch.json
+                /myapp/.vscode/settings.json
+                /myapp/bld
+                /myapp/bld.bat
+                /myapp/build
+                /myapp/build/main
+                /myapp/build/main/com
+                /myapp/build/main/com/example
+                /myapp/build/main/com/example/MyappLib.class
+                /myapp/build/test
+                /myapp/build/test/com
+                /myapp/build/test/com/example
+                /myapp/build/test/com/example/MyappTest.class
+                /myapp/lib
+                /myapp/lib/bld
+                /myapp/lib/bld/bld-wrapper.jar
+                /myapp/lib/bld/bld-wrapper.properties
+                /myapp/lib/compile
+                /myapp/lib/runtime
+                /myapp/lib/test
+                /myapp/src
+                /myapp/src/bld
+                /myapp/src/bld/java
+                /myapp/src/bld/java/com
+                /myapp/src/bld/java/com/example
+                /myapp/src/bld/java/com/example/MyappBuild.java
+                /myapp/src/bld/resources
+                /myapp/src/main
+                /myapp/src/main/java
+                /myapp/src/main/java/com
+                /myapp/src/main/java/com/example
+                /myapp/src/main/java/com/example/MyappLib.java
+                /myapp/src/main/resources
+                /myapp/src/main/resources/templates
+                /myapp/src/test
+                /myapp/src/test/java
+                /myapp/src/test/java/com
+                /myapp/src/test/java/com/example
+                /myapp/src/test/java/com/example/MyappTest.java
+                /myapp/src/test/resources""", FileUtils.generateDirectoryListing(tmp));
+
+            var check_result = new StringBuilder();
+            new TestOperation<>()
+                .fromProject(create_operation.project())
+                .outputProcessor(s -> {
+                    check_result.append(s);
+                    return true;
+                })
+                .mainClass("com.example.MyappTest")
+                .execute();
+            assertEquals("Succeeded", check_result.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testExecuteNoDownload()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateLibOperation()
+                .workDirectory(tmp)
+                .packageName("org.stuff")
+                .projectName("yourthing");
+            create_operation.execute();
+
+            assertEquals("""
+                    /yourthing
+                    /yourthing/.gitignore
+                    /yourthing/.idea
+                    /yourthing/.idea/app.iml
+                    /yourthing/.idea/bld.iml
+                    /yourthing/.idea/libraries
+                    /yourthing/.idea/libraries/bld.xml
+                    /yourthing/.idea/libraries/compile.xml
+                    /yourthing/.idea/libraries/runtime.xml
+                    /yourthing/.idea/libraries/test.xml
+                    /yourthing/.idea/misc.xml
+                    /yourthing/.idea/modules.xml
+                    /yourthing/.idea/runConfigurations
+                    /yourthing/.idea/runConfigurations/Run Tests.xml
+                    /yourthing/.vscode
+                    /yourthing/.vscode/launch.json
+                    /yourthing/.vscode/settings.json
+                    /yourthing/bld
+                    /yourthing/bld.bat
+                    /yourthing/lib
+                    /yourthing/lib/bld
+                    /yourthing/lib/bld/bld-wrapper.jar
+                    /yourthing/lib/bld/bld-wrapper.properties
+                    /yourthing/lib/compile
+                    /yourthing/lib/runtime
+                    /yourthing/lib/test
+                    /yourthing/src
+                    /yourthing/src/bld
+                    /yourthing/src/bld/java
+                    /yourthing/src/bld/java/org
+                    /yourthing/src/bld/java/org/stuff
+                    /yourthing/src/bld/java/org/stuff/YourthingBuild.java
+                    /yourthing/src/bld/resources
+                    /yourthing/src/main
+                    /yourthing/src/main/java
+                    /yourthing/src/main/java/org
+                    /yourthing/src/main/java/org/stuff
+                    /yourthing/src/main/java/org/stuff/YourthingLib.java
+                    /yourthing/src/main/resources
+                    /yourthing/src/main/resources/templates
+                    /yourthing/src/test
+                    /yourthing/src/test/java
+                    /yourthing/src/test/java/org
+                    /yourthing/src/test/java/org/stuff
+                    /yourthing/src/test/java/org/stuff/YourthingTest.java
+                    /yourthing/src/test/resources""",
+                FileUtils.generateDirectoryListing(tmp));
+
+            var compile_operation = new CompileOperation().fromProject(create_operation.project());
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+            assertEquals("""
+                    /yourthing
+                    /yourthing/.gitignore
+                    /yourthing/.idea
+                    /yourthing/.idea/app.iml
+                    /yourthing/.idea/bld.iml
+                    /yourthing/.idea/libraries
+                    /yourthing/.idea/libraries/bld.xml
+                    /yourthing/.idea/libraries/compile.xml
+                    /yourthing/.idea/libraries/runtime.xml
+                    /yourthing/.idea/libraries/test.xml
+                    /yourthing/.idea/misc.xml
+                    /yourthing/.idea/modules.xml
+                    /yourthing/.idea/runConfigurations
+                    /yourthing/.idea/runConfigurations/Run Tests.xml
+                    /yourthing/.vscode
+                    /yourthing/.vscode/launch.json
+                    /yourthing/.vscode/settings.json
+                    /yourthing/bld
+                    /yourthing/bld.bat
+                    /yourthing/build
+                    /yourthing/build/main
+                    /yourthing/build/main/org
+                    /yourthing/build/main/org/stuff
+                    /yourthing/build/main/org/stuff/YourthingLib.class
+                    /yourthing/build/test
+                    /yourthing/build/test/org
+                    /yourthing/build/test/org/stuff
+                    /yourthing/build/test/org/stuff/YourthingTest.class
+                    /yourthing/lib
+                    /yourthing/lib/bld
+                    /yourthing/lib/bld/bld-wrapper.jar
+                    /yourthing/lib/bld/bld-wrapper.properties
+                    /yourthing/lib/compile
+                    /yourthing/lib/runtime
+                    /yourthing/lib/test
+                    /yourthing/src
+                    /yourthing/src/bld
+                    /yourthing/src/bld/java
+                    /yourthing/src/bld/java/org
+                    /yourthing/src/bld/java/org/stuff
+                    /yourthing/src/bld/java/org/stuff/YourthingBuild.java
+                    /yourthing/src/bld/resources
+                    /yourthing/src/main
+                    /yourthing/src/main/java
+                    /yourthing/src/main/java/org
+                    /yourthing/src/main/java/org/stuff
+                    /yourthing/src/main/java/org/stuff/YourthingLib.java
+                    /yourthing/src/main/resources
+                    /yourthing/src/main/resources/templates
+                    /yourthing/src/test
+                    /yourthing/src/test/java
+                    /yourthing/src/test/java/org
+                    /yourthing/src/test/java/org/stuff
+                    /yourthing/src/test/java/org/stuff/YourthingTest.java
+                    /yourthing/src/test/resources""",
+                FileUtils.generateDirectoryListing(tmp));
+
+            var check_result = new StringBuilder();
+            new TestOperation<>()
+                .fromProject(create_operation.project())
+                .outputProcessor(s -> {
+                    check_result.append(s);
+                    return true;
+                })
+                .mainClass("org.stuff.YourthingTest")
+                .execute();
+            assertEquals("Succeeded", check_result.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestCreateRife2Operation.java b/src/test/java/rife/bld/operations/TestCreateRife2Operation.java
new file mode 100644
index 0000000..f90954e
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestCreateRife2Operation.java
@@ -0,0 +1,720 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.dependencies.LocalDependency;
+import rife.bld.dependencies.Scope;
+import rife.bld.operations.exceptions.ExitStatusException;
+import rife.tools.FileUtils;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import javax.tools.DiagnosticCollector;
+import javax.tools.JavaFileObject;
+import java.io.File;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestCreateRife2Operation {
+    @Test
+    void testInstantiation() {
+        var operation = new CreateRife2Operation();
+        assertNotNull(operation.workDirectory());
+        assertTrue(operation.workDirectory().exists());
+        assertTrue(operation.workDirectory().isDirectory());
+        assertTrue(operation.workDirectory().canWrite());
+        assertFalse(operation.downloadDependencies());
+        assertNull(operation.packageName());
+        assertNull(operation.projectName());
+    }
+
+    @Test
+    void testPopulation()
+    throws Exception {
+        var work_directory = Files.createTempDirectory("test").toFile();
+        try {
+            var download_dependencies = true;
+            var package_name = "packageName";
+            var project_name = "projectName";
+
+            var operation = new CreateRife2Operation();
+            operation
+                .workDirectory(work_directory)
+                .downloadDependencies(download_dependencies)
+                .packageName(package_name)
+                .projectName(project_name);
+
+            assertEquals(work_directory, operation.workDirectory());
+            assertEquals(download_dependencies, operation.downloadDependencies());
+            assertEquals(package_name, operation.packageName());
+            assertEquals(project_name, operation.projectName());
+        } finally {
+            FileUtils.deleteDirectory(work_directory);
+        }
+    }
+
+    @Test
+    void testExecute()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateRife2Operation()
+                .workDirectory(tmp)
+                .packageName("com.example")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            assertTrue(Pattern.compile("""
+                    /myapp
+                    /myapp/\\.gitignore
+                    /myapp/\\.idea
+                    /myapp/\\.idea/app\\.iml
+                    /myapp/\\.idea/bld\\.iml
+                    /myapp/\\.idea/libraries
+                    /myapp/\\.idea/libraries/bld\\.xml
+                    /myapp/\\.idea/libraries/compile\\.xml
+                    /myapp/\\.idea/libraries/runtime\\.xml
+                    /myapp/\\.idea/libraries/standalone\\.xml
+                    /myapp/\\.idea/libraries/test\\.xml
+                    /myapp/\\.idea/misc\\.xml
+                    /myapp/\\.idea/modules\\.xml
+                    /myapp/\\.idea/runConfigurations
+                    /myapp/\\.idea/runConfigurations/Run Main\\.xml
+                    /myapp/\\.idea/runConfigurations/Run Tests\\.xml
+                    /myapp/\\.vscode
+                    /myapp/\\.vscode/launch\\.json
+                    /myapp/\\.vscode/settings\\.json
+                    /myapp/bld
+                    /myapp/bld\\.bat
+                    /myapp/lib
+                    /myapp/lib/bld
+                    /myapp/lib/bld/bld-wrapper\\.jar
+                    /myapp/lib/bld/bld-wrapper\\.properties
+                    /myapp/lib/compile
+                    /myapp/lib/compile/rife2-.+-sources\\.jar
+                    /myapp/lib/compile/rife2-.+\\.jar
+                    /myapp/lib/runtime
+                    /myapp/lib/standalone
+                    /myapp/lib/standalone/jetty-http-11\\.0\\.15-sources\\.jar
+                    /myapp/lib/standalone/jetty-http-11\\.0\\.15\\.jar
+                    /myapp/lib/standalone/jetty-io-11\\.0\\.15-sources\\.jar
+                    /myapp/lib/standalone/jetty-io-11\\.0\\.15\\.jar
+                    /myapp/lib/standalone/jetty-jakarta-servlet-api-5\\.0\\.2-sources\\.jar
+                    /myapp/lib/standalone/jetty-jakarta-servlet-api-5\\.0\\.2\\.jar
+                    /myapp/lib/standalone/jetty-security-11\\.0\\.15-sources\\.jar
+                    /myapp/lib/standalone/jetty-security-11\\.0\\.15\\.jar
+                    /myapp/lib/standalone/jetty-server-11\\.0\\.15-sources\\.jar
+                    /myapp/lib/standalone/jetty-server-11\\.0\\.15\\.jar
+                    /myapp/lib/standalone/jetty-servlet-11\\.0\\.15-sources\\.jar
+                    /myapp/lib/standalone/jetty-servlet-11\\.0\\.15\\.jar
+                    /myapp/lib/standalone/jetty-util-11\\.0\\.15-sources\\.jar
+                    /myapp/lib/standalone/jetty-util-11\\.0\\.15\\.jar
+                    /myapp/lib/standalone/slf4j-api-2\\.0\\.7-sources\\.jar
+                    /myapp/lib/standalone/slf4j-api-2\\.0\\.7\\.jar
+                    /myapp/lib/standalone/slf4j-simple-2\\.0\\.7-sources\\.jar
+                    /myapp/lib/standalone/slf4j-simple-2\\.0\\.7\\.jar
+                    /myapp/lib/test
+                    /myapp/lib/test/apiguardian-api-1\\.1\\.2-sources\\.jar
+                    /myapp/lib/test/apiguardian-api-1\\.1\\.2\\.jar
+                    /myapp/lib/test/jsoup-1\\.16\\.1-sources\\.jar
+                    /myapp/lib/test/jsoup-1\\.16\\.1\\.jar
+                    /myapp/lib/test/junit-jupiter-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-jupiter-api-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-api-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-jupiter-engine-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-engine-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-jupiter-params-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-params-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-platform-commons-1\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-platform-commons-1\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-platform-console-standalone-1\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-platform-console-standalone-1\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-platform-engine-1\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-platform-engine-1\\.9\\.3\\.jar
+                    /myapp/lib/test/opentest4j-1\\.2\\.0-sources\\.jar
+                    /myapp/lib/test/opentest4j-1\\.2\\.0\\.jar
+                    /myapp/src
+                    /myapp/src/bld
+                    /myapp/src/bld/java
+                    /myapp/src/bld/java/com
+                    /myapp/src/bld/java/com/example
+                    /myapp/src/bld/java/com/example/MyappBuild\\.java
+                    /myapp/src/bld/resources
+                    /myapp/src/main
+                    /myapp/src/main/java
+                    /myapp/src/main/java/com
+                    /myapp/src/main/java/com/example
+                    /myapp/src/main/java/com/example/MyappSite\\.java
+                    /myapp/src/main/java/com/example/MyappSiteUber\\.java
+                    /myapp/src/main/resources
+                    /myapp/src/main/resources/templates
+                    /myapp/src/main/resources/templates/hello\\.html
+                    /myapp/src/main/webapp
+                    /myapp/src/main/webapp/WEB-INF
+                    /myapp/src/main/webapp/WEB-INF/web\\.xml
+                    /myapp/src/main/webapp/css
+                    /myapp/src/main/webapp/css/style\\.css
+                    /myapp/src/test
+                    /myapp/src/test/java
+                    /myapp/src/test/java/com
+                    /myapp/src/test/java/com/example
+                    /myapp/src/test/java/com/example/MyappTest\\.java
+                    /myapp/src/test/resources""").matcher(FileUtils.generateDirectoryListing(tmp)).matches());
+
+            var compile_operation = new CompileOperation().fromProject(create_operation.project());
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+            assertTrue(Pattern.compile("""
+                    /myapp
+                    /myapp/\\.gitignore
+                    /myapp/\\.idea
+                    /myapp/\\.idea/app\\.iml
+                    /myapp/\\.idea/bld\\.iml
+                    /myapp/\\.idea/libraries
+                    /myapp/\\.idea/libraries/bld\\.xml
+                    /myapp/\\.idea/libraries/compile\\.xml
+                    /myapp/\\.idea/libraries/runtime\\.xml
+                    /myapp/\\.idea/libraries/standalone\\.xml
+                    /myapp/\\.idea/libraries/test\\.xml
+                    /myapp/\\.idea/misc\\.xml
+                    /myapp/\\.idea/modules\\.xml
+                    /myapp/\\.idea/runConfigurations
+                    /myapp/\\.idea/runConfigurations/Run Main\\.xml
+                    /myapp/\\.idea/runConfigurations/Run Tests\\.xml
+                    /myapp/\\.vscode
+                    /myapp/\\.vscode/launch\\.json
+                    /myapp/\\.vscode/settings\\.json
+                    /myapp/bld
+                    /myapp/bld\\.bat
+                    /myapp/build
+                    /myapp/build/main
+                    /myapp/build/main/com
+                    /myapp/build/main/com/example
+                    /myapp/build/main/com/example/MyappSite\\.class
+                    /myapp/build/main/com/example/MyappSiteUber\\.class
+                    /myapp/build/test
+                    /myapp/build/test/com
+                    /myapp/build/test/com/example
+                    /myapp/build/test/com/example/MyappTest\\.class
+                    /myapp/lib
+                    /myapp/lib/bld
+                    /myapp/lib/bld/bld-wrapper\\.jar
+                    /myapp/lib/bld/bld-wrapper\\.properties
+                    /myapp/lib/compile
+                    /myapp/lib/compile/rife2-.+-sources\\.jar
+                    /myapp/lib/compile/rife2-.+\\.jar
+                    /myapp/lib/runtime
+                    /myapp/lib/standalone
+                    /myapp/lib/standalone/jetty-http-11\\.0\\.15-sources\\.jar
+                    /myapp/lib/standalone/jetty-http-11\\.0\\.15\\.jar
+                    /myapp/lib/standalone/jetty-io-11\\.0\\.15-sources\\.jar
+                    /myapp/lib/standalone/jetty-io-11\\.0\\.15\\.jar
+                    /myapp/lib/standalone/jetty-jakarta-servlet-api-5\\.0\\.2-sources\\.jar
+                    /myapp/lib/standalone/jetty-jakarta-servlet-api-5\\.0\\.2\\.jar
+                    /myapp/lib/standalone/jetty-security-11\\.0\\.15-sources\\.jar
+                    /myapp/lib/standalone/jetty-security-11\\.0\\.15\\.jar
+                    /myapp/lib/standalone/jetty-server-11\\.0\\.15-sources\\.jar
+                    /myapp/lib/standalone/jetty-server-11\\.0\\.15\\.jar
+                    /myapp/lib/standalone/jetty-servlet-11\\.0\\.15-sources\\.jar
+                    /myapp/lib/standalone/jetty-servlet-11\\.0\\.15\\.jar
+                    /myapp/lib/standalone/jetty-util-11\\.0\\.15-sources\\.jar
+                    /myapp/lib/standalone/jetty-util-11\\.0\\.15\\.jar
+                    /myapp/lib/standalone/slf4j-api-2\\.0\\.7-sources\\.jar
+                    /myapp/lib/standalone/slf4j-api-2\\.0\\.7\\.jar
+                    /myapp/lib/standalone/slf4j-simple-2\\.0\\.7-sources\\.jar
+                    /myapp/lib/standalone/slf4j-simple-2\\.0\\.7\\.jar
+                    /myapp/lib/test
+                    /myapp/lib/test/apiguardian-api-1\\.1\\.2-sources\\.jar
+                    /myapp/lib/test/apiguardian-api-1\\.1\\.2\\.jar
+                    /myapp/lib/test/jsoup-1\\.16\\.1-sources\\.jar
+                    /myapp/lib/test/jsoup-1\\.16\\.1\\.jar
+                    /myapp/lib/test/junit-jupiter-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-jupiter-api-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-api-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-jupiter-engine-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-engine-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-jupiter-params-5\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-jupiter-params-5\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-platform-commons-1\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-platform-commons-1\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-platform-console-standalone-1\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-platform-console-standalone-1\\.9\\.3\\.jar
+                    /myapp/lib/test/junit-platform-engine-1\\.9\\.3-sources\\.jar
+                    /myapp/lib/test/junit-platform-engine-1\\.9\\.3\\.jar
+                    /myapp/lib/test/opentest4j-1\\.2\\.0-sources\\.jar
+                    /myapp/lib/test/opentest4j-1\\.2\\.0\\.jar
+                    /myapp/src
+                    /myapp/src/bld
+                    /myapp/src/bld/java
+                    /myapp/src/bld/java/com
+                    /myapp/src/bld/java/com/example
+                    /myapp/src/bld/java/com/example/MyappBuild\\.java
+                    /myapp/src/bld/resources
+                    /myapp/src/main
+                    /myapp/src/main/java
+                    /myapp/src/main/java/com
+                    /myapp/src/main/java/com/example
+                    /myapp/src/main/java/com/example/MyappSite\\.java
+                    /myapp/src/main/java/com/example/MyappSiteUber\\.java
+                    /myapp/src/main/resources
+                    /myapp/src/main/resources/templates
+                    /myapp/src/main/resources/templates/hello\\.html
+                    /myapp/src/main/webapp
+                    /myapp/src/main/webapp/WEB-INF
+                    /myapp/src/main/webapp/WEB-INF/web\\.xml
+                    /myapp/src/main/webapp/css
+                    /myapp/src/main/webapp/css/style\\.css
+                    /myapp/src/test
+                    /myapp/src/test/java
+                    /myapp/src/test/java/com
+                    /myapp/src/test/java/com/example
+                    /myapp/src/test/java/com/example/MyappTest\\.java
+                    /myapp/src/test/resources""").matcher(FileUtils.generateDirectoryListing(tmp)).matches());
+
+            var run_operation = new RunOperation().fromProject(create_operation.project());
+            var executor = Executors.newSingleThreadScheduledExecutor();
+            var checked_url = new URL("http://localhost:8080");
+            var check_result = new StringBuilder();
+            executor.schedule(() -> {
+                try {
+                    check_result.append(FileUtils.readString(checked_url));
+                } catch (FileUtilsErrorException e) {
+                    throw new RuntimeException(e);
+                }
+            }, 1, TimeUnit.SECONDS);
+            executor.schedule(() -> run_operation.process().destroy(), 2, TimeUnit.SECONDS);
+            assertThrows(ExitStatusException.class, run_operation::execute);
+
+            assertTrue(check_result.toString().contains("<p>Hello World Myapp</p>"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testExecuteNoDownload()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateRife2Operation()
+                .workDirectory(tmp)
+                .packageName("org.stuff")
+                .projectName("yourthing");
+            create_operation.execute();
+
+            assertEquals("""
+                    /yourthing
+                    /yourthing/.gitignore
+                    /yourthing/.idea
+                    /yourthing/.idea/app.iml
+                    /yourthing/.idea/bld.iml
+                    /yourthing/.idea/libraries
+                    /yourthing/.idea/libraries/bld.xml
+                    /yourthing/.idea/libraries/compile.xml
+                    /yourthing/.idea/libraries/runtime.xml
+                    /yourthing/.idea/libraries/standalone.xml
+                    /yourthing/.idea/libraries/test.xml
+                    /yourthing/.idea/misc.xml
+                    /yourthing/.idea/modules.xml
+                    /yourthing/.idea/runConfigurations
+                    /yourthing/.idea/runConfigurations/Run Main.xml
+                    /yourthing/.idea/runConfigurations/Run Tests.xml
+                    /yourthing/.vscode
+                    /yourthing/.vscode/launch.json
+                    /yourthing/.vscode/settings.json
+                    /yourthing/bld
+                    /yourthing/bld.bat
+                    /yourthing/lib
+                    /yourthing/lib/bld
+                    /yourthing/lib/bld/bld-wrapper.jar
+                    /yourthing/lib/bld/bld-wrapper.properties
+                    /yourthing/lib/compile
+                    /yourthing/lib/runtime
+                    /yourthing/lib/standalone
+                    /yourthing/lib/test
+                    /yourthing/src
+                    /yourthing/src/bld
+                    /yourthing/src/bld/java
+                    /yourthing/src/bld/java/org
+                    /yourthing/src/bld/java/org/stuff
+                    /yourthing/src/bld/java/org/stuff/YourthingBuild.java
+                    /yourthing/src/bld/resources
+                    /yourthing/src/main
+                    /yourthing/src/main/java
+                    /yourthing/src/main/java/org
+                    /yourthing/src/main/java/org/stuff
+                    /yourthing/src/main/java/org/stuff/YourthingSite.java
+                    /yourthing/src/main/java/org/stuff/YourthingSiteUber.java
+                    /yourthing/src/main/resources
+                    /yourthing/src/main/resources/templates
+                    /yourthing/src/main/resources/templates/hello.html
+                    /yourthing/src/main/webapp
+                    /yourthing/src/main/webapp/WEB-INF
+                    /yourthing/src/main/webapp/WEB-INF/web.xml
+                    /yourthing/src/main/webapp/css
+                    /yourthing/src/main/webapp/css/style.css
+                    /yourthing/src/test
+                    /yourthing/src/test/java
+                    /yourthing/src/test/java/org
+                    /yourthing/src/test/java/org/stuff
+                    /yourthing/src/test/java/org/stuff/YourthingTest.java
+                    /yourthing/src/test/resources""",
+                FileUtils.generateDirectoryListing(tmp));
+
+            var compile_operation = new CompileOperation() {
+                public void executeProcessDiagnostics(DiagnosticCollector<JavaFileObject> diagnostics) {
+                    // don't output errors
+                }
+            };
+            compile_operation.fromProject(create_operation.project());
+            assertThrows(ExitStatusException.class, compile_operation::execute);
+            var diagnostics = compile_operation.diagnostics();
+            assertEquals(16, diagnostics.size());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testExecuteLocalDependencies()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateRife2Operation()
+                .workDirectory(tmp)
+                .packageName("com.example")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            var project = create_operation.project();
+            var lib_local = new File(project.libDirectory(), "local");
+            lib_local.mkdirs();
+            for (var lib : FileUtils.getFileList(project.libCompileDirectory())) {
+                if (!lib.endsWith("-sources.jar")) {
+                    project.dependencies().scope(Scope.compile).include(new LocalDependency(Path.of("lib", "local", lib).toString()));
+                }
+                new File(project.libCompileDirectory(), lib).renameTo(new File(lib_local, lib));
+            }
+            for (var lib : FileUtils.getFileList(project.libStandaloneDirectory())) {
+                if (!lib.endsWith("-sources.jar")) {
+                    project.dependencies().scope(Scope.standalone).include(new LocalDependency(Path.of("lib", "local", lib).toString()));
+                }
+                new File(project.libStandaloneDirectory(), lib).renameTo(new File(lib_local, lib));
+            }
+            for (var lib : FileUtils.getFileList(project.libTestDirectory())) {
+                if (!lib.endsWith("-sources.jar")) {
+                    project.dependencies().scope(Scope.test).include(new LocalDependency(Path.of("lib", "local", lib).toString()));
+                }
+                new File(project.libTestDirectory(), lib).renameTo(new File(lib_local, lib));
+            }
+
+            var compile_operation = new CompileOperation().fromProject(create_operation.project());
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+            assertTrue(Pattern.compile("""
+                /myapp
+                /myapp/\\.gitignore
+                /myapp/\\.idea
+                /myapp/\\.idea/app\\.iml
+                /myapp/\\.idea/bld\\.iml
+                /myapp/\\.idea/libraries
+                /myapp/\\.idea/libraries/bld\\.xml
+                /myapp/\\.idea/libraries/compile\\.xml
+                /myapp/\\.idea/libraries/runtime\\.xml
+                /myapp/\\.idea/libraries/standalone\\.xml
+                /myapp/\\.idea/libraries/test\\.xml
+                /myapp/\\.idea/misc\\.xml
+                /myapp/\\.idea/modules\\.xml
+                /myapp/\\.idea/runConfigurations
+                /myapp/\\.idea/runConfigurations/Run Main\\.xml
+                /myapp/\\.idea/runConfigurations/Run Tests\\.xml
+                /myapp/\\.vscode
+                /myapp/\\.vscode/launch\\.json
+                /myapp/\\.vscode/settings\\.json
+                /myapp/bld
+                /myapp/bld\\.bat
+                /myapp/build
+                /myapp/build/main
+                /myapp/build/main/com
+                /myapp/build/main/com/example
+                /myapp/build/main/com/example/MyappSite\\.class
+                /myapp/build/main/com/example/MyappSiteUber\\.class
+                /myapp/build/test
+                /myapp/build/test/com
+                /myapp/build/test/com/example
+                /myapp/build/test/com/example/MyappTest\\.class
+                /myapp/lib
+                /myapp/lib/bld
+                /myapp/lib/bld/bld-wrapper\\.jar
+                /myapp/lib/bld/bld-wrapper\\.properties
+                /myapp/lib/compile
+                /myapp/lib/local
+                /myapp/lib/local/apiguardian-api-1\\.1\\.2-sources\\.jar
+                /myapp/lib/local/apiguardian-api-1\\.1\\.2\\.jar
+                /myapp/lib/local/jetty-http-11\\.0\\.15-sources\\.jar
+                /myapp/lib/local/jetty-http-11\\.0\\.15\\.jar
+                /myapp/lib/local/jetty-io-11\\.0\\.15-sources\\.jar
+                /myapp/lib/local/jetty-io-11\\.0\\.15\\.jar
+                /myapp/lib/local/jetty-jakarta-servlet-api-5\\.0\\.2-sources\\.jar
+                /myapp/lib/local/jetty-jakarta-servlet-api-5\\.0\\.2\\.jar
+                /myapp/lib/local/jetty-security-11\\.0\\.15-sources\\.jar
+                /myapp/lib/local/jetty-security-11\\.0\\.15\\.jar
+                /myapp/lib/local/jetty-server-11\\.0\\.15-sources\\.jar
+                /myapp/lib/local/jetty-server-11\\.0\\.15\\.jar
+                /myapp/lib/local/jetty-servlet-11\\.0\\.15-sources\\.jar
+                /myapp/lib/local/jetty-servlet-11\\.0\\.15\\.jar
+                /myapp/lib/local/jetty-util-11\\.0\\.15-sources\\.jar
+                /myapp/lib/local/jetty-util-11\\.0\\.15\\.jar
+                /myapp/lib/local/jsoup-1\\.16\\.1-sources\\.jar
+                /myapp/lib/local/jsoup-1\\.16\\.1\\.jar
+                /myapp/lib/local/junit-jupiter-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-jupiter-5\\.9\\.3\\.jar
+                /myapp/lib/local/junit-jupiter-api-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-jupiter-api-5\\.9\\.3\\.jar
+                /myapp/lib/local/junit-jupiter-engine-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-jupiter-engine-5\\.9\\.3\\.jar
+                /myapp/lib/local/junit-jupiter-params-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-jupiter-params-5\\.9\\.3\\.jar
+                /myapp/lib/local/junit-platform-commons-1\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-platform-commons-1\\.9\\.3\\.jar
+                /myapp/lib/local/junit-platform-console-standalone-1\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-platform-console-standalone-1\\.9\\.3\\.jar
+                /myapp/lib/local/junit-platform-engine-1\\.9\\.3-sources\\.jar
+                /myapp/lib/local/junit-platform-engine-1\\.9\\.3\\.jar
+                /myapp/lib/local/opentest4j-1\\.2\\.0-sources\\.jar
+                /myapp/lib/local/opentest4j-1\\.2\\.0\\.jar
+                /myapp/lib/local/rife2-.*-sources\\.jar
+                /myapp/lib/local/rife2-.*\\.jar
+                /myapp/lib/local/slf4j-api-2\\.0\\.7-sources\\.jar
+                /myapp/lib/local/slf4j-api-2\\.0\\.7\\.jar
+                /myapp/lib/local/slf4j-simple-2\\.0\\.7-sources\\.jar
+                /myapp/lib/local/slf4j-simple-2\\.0\\.7\\.jar
+                /myapp/lib/runtime
+                /myapp/lib/standalone
+                /myapp/lib/test
+                /myapp/src
+                /myapp/src/bld
+                /myapp/src/bld/java
+                /myapp/src/bld/java/com
+                /myapp/src/bld/java/com/example
+                /myapp/src/bld/java/com/example/MyappBuild\\.java
+                /myapp/src/bld/resources
+                /myapp/src/main
+                /myapp/src/main/java
+                /myapp/src/main/java/com
+                /myapp/src/main/java/com/example
+                /myapp/src/main/java/com/example/MyappSite\\.java
+                /myapp/src/main/java/com/example/MyappSiteUber\\.java
+                /myapp/src/main/resources
+                /myapp/src/main/resources/templates
+                /myapp/src/main/resources/templates/hello\\.html
+                /myapp/src/main/webapp
+                /myapp/src/main/webapp/WEB-INF
+                /myapp/src/main/webapp/WEB-INF/web\\.xml
+                /myapp/src/main/webapp/css
+                /myapp/src/main/webapp/css/style\\.css
+                /myapp/src/test
+                /myapp/src/test/java
+                /myapp/src/test/java/com
+                /myapp/src/test/java/com/example
+                /myapp/src/test/java/com/example/MyappTest\\.java
+                /myapp/src/test/resources""").matcher(FileUtils.generateDirectoryListing(tmp)).matches());
+
+            var run_operation = new RunOperation().fromProject(create_operation.project());
+            var executor = Executors.newSingleThreadScheduledExecutor();
+            var checked_url = new URL("http://localhost:8080");
+            var check_result = new StringBuilder();
+            executor.schedule(() -> {
+                try {
+                    check_result.append(FileUtils.readString(checked_url));
+                } catch (FileUtilsErrorException e) {
+                    throw new RuntimeException(e);
+                }
+            }, 1, TimeUnit.SECONDS);
+            executor.schedule(() -> run_operation.process().destroy(), 2, TimeUnit.SECONDS);
+            assertThrows(ExitStatusException.class, run_operation::execute);
+
+            assertTrue(check_result.toString().contains("<p>Hello World Myapp</p>"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testExecuteLocalDependenciesFolders()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateRife2Operation()
+                .workDirectory(tmp)
+                .packageName("com.example")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            var project = create_operation.project();
+            var lib_local_compile = new File(project.libDirectory(), "local_compile");
+            lib_local_compile.mkdirs();
+            project.dependencies().scope(Scope.compile).include(new LocalDependency(Path.of("lib", "local_compile").toString()));
+            for (var lib : FileUtils.getFileList(project.libCompileDirectory())) {
+                new File(project.libCompileDirectory(), lib).renameTo(new File(lib_local_compile, lib));
+            }
+            var lib_local_standalone = new File(project.libDirectory(), "local_standalone");
+            lib_local_standalone.mkdirs();
+            project.dependencies().scope(Scope.standalone).include(new LocalDependency(Path.of("lib", "local_standalone").toString()));
+            for (var lib : FileUtils.getFileList(project.libStandaloneDirectory())) {
+                new File(project.libStandaloneDirectory(), lib).renameTo(new File(lib_local_standalone, lib));
+            }
+            var lib_local_test = new File(project.libDirectory(), "local_test");
+            lib_local_test.mkdirs();
+            project.dependencies().scope(Scope.test).include(new LocalDependency(Path.of("lib", "local_test").toString()));
+            for (var lib : FileUtils.getFileList(project.libTestDirectory())) {
+                new File(project.libTestDirectory(), lib).renameTo(new File(lib_local_test, lib));
+            }
+
+            var compile_operation = new CompileOperation().fromProject(create_operation.project());
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+            assertTrue(Pattern.compile("""
+                /myapp
+                /myapp/\\.gitignore
+                /myapp/\\.idea
+                /myapp/\\.idea/app\\.iml
+                /myapp/\\.idea/bld\\.iml
+                /myapp/\\.idea/libraries
+                /myapp/\\.idea/libraries/bld\\.xml
+                /myapp/\\.idea/libraries/compile\\.xml
+                /myapp/\\.idea/libraries/runtime\\.xml
+                /myapp/\\.idea/libraries/standalone\\.xml
+                /myapp/\\.idea/libraries/test\\.xml
+                /myapp/\\.idea/misc\\.xml
+                /myapp/\\.idea/modules\\.xml
+                /myapp/\\.idea/runConfigurations
+                /myapp/\\.idea/runConfigurations/Run Main\\.xml
+                /myapp/\\.idea/runConfigurations/Run Tests\\.xml
+                /myapp/\\.vscode
+                /myapp/\\.vscode/launch\\.json
+                /myapp/\\.vscode/settings\\.json
+                /myapp/bld
+                /myapp/bld\\.bat
+                /myapp/build
+                /myapp/build/main
+                /myapp/build/main/com
+                /myapp/build/main/com/example
+                /myapp/build/main/com/example/MyappSite\\.class
+                /myapp/build/main/com/example/MyappSiteUber\\.class
+                /myapp/build/test
+                /myapp/build/test/com
+                /myapp/build/test/com/example
+                /myapp/build/test/com/example/MyappTest\\.class
+                /myapp/lib
+                /myapp/lib/bld
+                /myapp/lib/bld/bld-wrapper\\.jar
+                /myapp/lib/bld/bld-wrapper\\.properties
+                /myapp/lib/compile
+                /myapp/lib/local_compile
+                /myapp/lib/local_compile/rife2-.*-sources\\.jar
+                /myapp/lib/local_compile/rife2-.*\\.jar
+                /myapp/lib/local_standalone
+                /myapp/lib/local_standalone/jetty-http-11\\.0\\.15-sources\\.jar
+                /myapp/lib/local_standalone/jetty-http-11\\.0\\.15\\.jar
+                /myapp/lib/local_standalone/jetty-io-11\\.0\\.15-sources\\.jar
+                /myapp/lib/local_standalone/jetty-io-11\\.0\\.15\\.jar
+                /myapp/lib/local_standalone/jetty-jakarta-servlet-api-5\\.0\\.2-sources\\.jar
+                /myapp/lib/local_standalone/jetty-jakarta-servlet-api-5\\.0\\.2\\.jar
+                /myapp/lib/local_standalone/jetty-security-11\\.0\\.15-sources\\.jar
+                /myapp/lib/local_standalone/jetty-security-11\\.0\\.15\\.jar
+                /myapp/lib/local_standalone/jetty-server-11\\.0\\.15-sources\\.jar
+                /myapp/lib/local_standalone/jetty-server-11\\.0\\.15\\.jar
+                /myapp/lib/local_standalone/jetty-servlet-11\\.0\\.15-sources\\.jar
+                /myapp/lib/local_standalone/jetty-servlet-11\\.0\\.15\\.jar
+                /myapp/lib/local_standalone/jetty-util-11\\.0\\.15-sources\\.jar
+                /myapp/lib/local_standalone/jetty-util-11\\.0\\.15\\.jar
+                /myapp/lib/local_standalone/slf4j-api-2\\.0\\.7-sources\\.jar
+                /myapp/lib/local_standalone/slf4j-api-2\\.0\\.7\\.jar
+                /myapp/lib/local_standalone/slf4j-simple-2\\.0\\.7-sources\\.jar
+                /myapp/lib/local_standalone/slf4j-simple-2\\.0\\.7\\.jar
+                /myapp/lib/local_test
+                /myapp/lib/local_test/apiguardian-api-1\\.1\\.2-sources\\.jar
+                /myapp/lib/local_test/apiguardian-api-1\\.1\\.2\\.jar
+                /myapp/lib/local_test/jsoup-1\\.16\\.1-sources\\.jar
+                /myapp/lib/local_test/jsoup-1\\.16\\.1\\.jar
+                /myapp/lib/local_test/junit-jupiter-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-jupiter-5\\.9\\.3\\.jar
+                /myapp/lib/local_test/junit-jupiter-api-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-jupiter-api-5\\.9\\.3\\.jar
+                /myapp/lib/local_test/junit-jupiter-engine-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-jupiter-engine-5\\.9\\.3\\.jar
+                /myapp/lib/local_test/junit-jupiter-params-5\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-jupiter-params-5\\.9\\.3\\.jar
+                /myapp/lib/local_test/junit-platform-commons-1\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-platform-commons-1\\.9\\.3\\.jar
+                /myapp/lib/local_test/junit-platform-console-standalone-1\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-platform-console-standalone-1\\.9\\.3\\.jar
+                /myapp/lib/local_test/junit-platform-engine-1\\.9\\.3-sources\\.jar
+                /myapp/lib/local_test/junit-platform-engine-1\\.9\\.3\\.jar
+                /myapp/lib/local_test/opentest4j-1\\.2\\.0-sources\\.jar
+                /myapp/lib/local_test/opentest4j-1\\.2\\.0\\.jar
+                /myapp/lib/runtime
+                /myapp/lib/standalone
+                /myapp/lib/test
+                /myapp/src
+                /myapp/src/bld
+                /myapp/src/bld/java
+                /myapp/src/bld/java/com
+                /myapp/src/bld/java/com/example
+                /myapp/src/bld/java/com/example/MyappBuild\\.java
+                /myapp/src/bld/resources
+                /myapp/src/main
+                /myapp/src/main/java
+                /myapp/src/main/java/com
+                /myapp/src/main/java/com/example
+                /myapp/src/main/java/com/example/MyappSite\\.java
+                /myapp/src/main/java/com/example/MyappSiteUber\\.java
+                /myapp/src/main/resources
+                /myapp/src/main/resources/templates
+                /myapp/src/main/resources/templates/hello\\.html
+                /myapp/src/main/webapp
+                /myapp/src/main/webapp/WEB-INF
+                /myapp/src/main/webapp/WEB-INF/web\\.xml
+                /myapp/src/main/webapp/css
+                /myapp/src/main/webapp/css/style\\.css
+                /myapp/src/test
+                /myapp/src/test/java
+                /myapp/src/test/java/com
+                /myapp/src/test/java/com/example
+                /myapp/src/test/java/com/example/MyappTest\\.java
+                /myapp/src/test/resources""").matcher(FileUtils.generateDirectoryListing(tmp)).matches());
+
+            var run_operation = new RunOperation().fromProject(create_operation.project());
+            var executor = Executors.newSingleThreadScheduledExecutor();
+            var checked_url = new URL("http://localhost:8080");
+            var check_result = new StringBuilder();
+            executor.schedule(() -> {
+                try {
+                    check_result.append(FileUtils.readString(checked_url));
+                } catch (FileUtilsErrorException e) {
+                    throw new RuntimeException(e);
+                }
+            }, 1, TimeUnit.SECONDS);
+            executor.schedule(() -> run_operation.process().destroy(), 2, TimeUnit.SECONDS);
+            assertThrows(ExitStatusException.class, run_operation::execute);
+
+            assertTrue(check_result.toString().contains("<p>Hello World Myapp</p>"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestDependencyTreeOperation.java b/src/test/java/rife/bld/operations/TestDependencyTreeOperation.java
new file mode 100644
index 0000000..d90fd79
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestDependencyTreeOperation.java
@@ -0,0 +1,197 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.WebProject;
+import rife.bld.dependencies.*;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestDependencyTreeOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new DependencyTreeOperation();
+        assertTrue(operation.dependencies().isEmpty());
+        assertTrue(operation.repositories().isEmpty());
+    }
+
+    @Test
+    void testPopulation() {
+        var repository1 = new Repository("repository1");
+        var repository2 = new Repository("repository2");
+        var dependency1 = new Dependency("group1", "artifact1");
+        var dependency2 = new Dependency("group2", "artifact2");
+
+        var operation1 = new DependencyTreeOperation()
+            .repositories(List.of(repository1, repository2));
+        var dependency_scopes = new DependencyScopes();
+        dependency_scopes.scope(Scope.compile).include(dependency1).include(dependency2);
+        operation1.dependencies(dependency_scopes);
+        assertTrue(operation1.repositories().contains(repository1));
+        assertTrue(operation1.repositories().contains(repository2));
+        assertTrue(operation1.dependencies().scope(Scope.compile).contains(dependency1));
+        assertTrue(operation1.dependencies().scope(Scope.compile).contains(dependency2));
+
+        var operation2 = new DependencyTreeOperation();
+        operation2.repositories().add(repository1);
+        operation2.repositories().add(repository2);
+        operation2.dependencies().scope(Scope.compile).include(dependency1).include(dependency2);
+        operation2.dependencies(dependency_scopes);
+        assertTrue(operation2.repositories().contains(repository1));
+        assertTrue(operation2.repositories().contains(repository2));
+        assertTrue(operation2.dependencies().scope(Scope.compile).contains(dependency1));
+        assertTrue(operation2.dependencies().scope(Scope.compile).contains(dependency2));
+
+        var operation3 = new DependencyTreeOperation()
+            .repositories(repository1, repository2);
+        assertTrue(operation3.repositories().contains(repository1));
+        assertTrue(operation3.repositories().contains(repository2));
+    }
+
+    @Test
+    void testExecution()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var operation = new DependencyTreeOperation()
+                .repositories(List.of(Repository.MAVEN_CENTRAL));
+            operation.dependencies().scope(Scope.compile)
+                .include(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1,5,20)))
+                .include(new Dependency("com.stripe", "stripe-java", new VersionNumber(20,136,0)))
+                .include(new Dependency("org.json", "json", new VersionNumber(20230227)))
+                .include(new Dependency("com.itextpdf", "itext7-core", new VersionNumber(7,2,5)))
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2,0,7)))
+                .include(new Dependency("org.apache.thrift", "libthrift", new VersionNumber(0,17,0)))
+                .include(new Dependency("commons-codec", "commons-codec", new VersionNumber(1,15)))
+                .include(new Dependency("org.apache.httpcomponents", "httpcore", new VersionNumber(4,4,16)))
+                .include(new Dependency("com.google.zxing", "javase", new VersionNumber(3,5,1)));
+            operation.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.postgresql", "postgresql", new VersionNumber(42,6,0)));
+
+            operation.execute();
+
+            var tree = operation.dependencyTree();
+
+            assertEquals("""
+                compile:
+                ├─ com.uwyn.rife2:rife2:1.5.20
+                ├─ com.stripe:stripe-java:20.136.0
+                ├─ org.json:json:20230227
+                ├─ com.itextpdf:itext7-core:7.2.5
+                │  ├─ com.itextpdf:barcodes:7.2.5
+                │  ├─ com.itextpdf:font-asian:7.2.5
+                │  ├─ com.itextpdf:forms:7.2.5
+                │  ├─ com.itextpdf:hyph:7.2.5
+                │  ├─ com.itextpdf:io:7.2.5
+                │  │  └─ com.itextpdf:commons:7.2.5
+                │  ├─ com.itextpdf:kernel:7.2.5
+                │  │  ├─ org.bouncycastle:bcpkix-jdk15on:1.70
+                │  │  │  └─ org.bouncycastle:bcutil-jdk15on:1.70
+                │  │  └─ org.bouncycastle:bcprov-jdk15on:1.70
+                │  ├─ com.itextpdf:layout:7.2.5
+                │  ├─ com.itextpdf:pdfa:7.2.5
+                │  ├─ com.itextpdf:sign:7.2.5
+                │  ├─ com.itextpdf:styled-xml-parser:7.2.5
+                │  └─ com.itextpdf:svg:7.2.5
+                ├─ org.slf4j:slf4j-simple:2.0.7
+                │  └─ org.slf4j:slf4j-api:2.0.7
+                ├─ org.apache.thrift:libthrift:0.17.0
+                ├─ commons-codec:commons-codec:1.15
+                ├─ org.apache.httpcomponents:httpcore:4.4.16
+                └─ com.google.zxing:javase:3.5.1
+                   ├─ com.google.zxing:core:3.5.1
+                   └─ com.beust:jcommander:1.82
+                                
+                runtime:
+                └─ org.postgresql:postgresql:42.6.0
+                   └─ org.checkerframework:checker-qual:3.31.0
+                                
+                """, tree);
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    static class TestProject extends WebProject {
+        public TestProject(File tmp) {
+            workDirectory = tmp;
+            pkg = "test.pkg";
+        }
+    }
+
+    @Test
+    void testFromProject()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var project = new TestProject(tmp);
+            project.createProjectStructure();
+            project.repositories().add(Repository.MAVEN_CENTRAL);
+            project.dependencies().scope(Scope.compile)
+                .include(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1,5,20)))
+                .include(new Dependency("com.stripe", "stripe-java", new VersionNumber(20,136,0)))
+                .include(new Dependency("org.json", "json", new VersionNumber(20230227)))
+                .include(new Dependency("com.itextpdf", "itext7-core", new VersionNumber(7,2,5)))
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2,0,7)))
+                .include(new Dependency("org.apache.thrift", "libthrift", new VersionNumber(0,17,0)))
+                .include(new Dependency("commons-codec", "commons-codec", new VersionNumber(1,15)))
+                .include(new Dependency("org.apache.httpcomponents", "httpcore", new VersionNumber(4,4,16)))
+                .include(new Dependency("com.google.zxing", "javase", new VersionNumber(3,5,1)));
+            project.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.postgresql", "postgresql", new VersionNumber(42,6,0)));
+
+            var operation = new DependencyTreeOperation()
+                .fromProject(project);
+
+            operation.execute();
+
+            var tree = operation.dependencyTree();
+
+            assertEquals("""
+                compile:
+                ├─ com.uwyn.rife2:rife2:1.5.20
+                ├─ com.stripe:stripe-java:20.136.0
+                ├─ org.json:json:20230227
+                ├─ com.itextpdf:itext7-core:7.2.5
+                │  ├─ com.itextpdf:barcodes:7.2.5
+                │  ├─ com.itextpdf:font-asian:7.2.5
+                │  ├─ com.itextpdf:forms:7.2.5
+                │  ├─ com.itextpdf:hyph:7.2.5
+                │  ├─ com.itextpdf:io:7.2.5
+                │  │  └─ com.itextpdf:commons:7.2.5
+                │  ├─ com.itextpdf:kernel:7.2.5
+                │  │  ├─ org.bouncycastle:bcpkix-jdk15on:1.70
+                │  │  │  └─ org.bouncycastle:bcutil-jdk15on:1.70
+                │  │  └─ org.bouncycastle:bcprov-jdk15on:1.70
+                │  ├─ com.itextpdf:layout:7.2.5
+                │  ├─ com.itextpdf:pdfa:7.2.5
+                │  ├─ com.itextpdf:sign:7.2.5
+                │  ├─ com.itextpdf:styled-xml-parser:7.2.5
+                │  └─ com.itextpdf:svg:7.2.5
+                ├─ org.slf4j:slf4j-simple:2.0.7
+                │  └─ org.slf4j:slf4j-api:2.0.7
+                ├─ org.apache.thrift:libthrift:0.17.0
+                ├─ commons-codec:commons-codec:1.15
+                ├─ org.apache.httpcomponents:httpcore:4.4.16
+                └─ com.google.zxing:javase:3.5.1
+                   ├─ com.google.zxing:core:3.5.1
+                   └─ com.beust:jcommander:1.82
+                                
+                runtime:
+                └─ org.postgresql:postgresql:42.6.0
+                   └─ org.checkerframework:checker-qual:3.31.0
+                                
+                """, tree);
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestDownloadOperation.java b/src/test/java/rife/bld/operations/TestDownloadOperation.java
new file mode 100644
index 0000000..673ae82
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestDownloadOperation.java
@@ -0,0 +1,314 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.WebProject;
+import rife.bld.dependencies.*;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestDownloadOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new DownloadOperation();
+        assertTrue(operation.dependencies().isEmpty());
+        assertTrue(operation.repositories().isEmpty());
+        assertNull(operation.libCompileDirectory());
+        assertNull(operation.libRuntimeDirectory());
+        assertNull(operation.libStandaloneDirectory());
+        assertNull(operation.libTestDirectory());
+    }
+
+    @Test
+    void testPopulation() {
+        var repository1 = new Repository("repository1");
+        var repository2 = new Repository("repository2");
+        var dependency1 = new Dependency("group1", "artifact1");
+        var dependency2 = new Dependency("group2", "artifact2");
+        var dir1 = new File("dir1");
+        var dir2 = new File("dir2");
+        var dir3 = new File("dir3");
+        var dir4 = new File("dir4");
+
+        var operation1 = new DownloadOperation()
+            .repositories(List.of(repository1, repository2))
+            .libCompileDirectory(dir1)
+            .libRuntimeDirectory(dir2)
+            .libStandaloneDirectory(dir3)
+            .libTestDirectory(dir4);
+        var dependency_scopes = new DependencyScopes();
+        dependency_scopes.scope(Scope.compile).include(dependency1).include(dependency2);
+        operation1.dependencies(dependency_scopes);
+        assertTrue(operation1.repositories().contains(repository1));
+        assertTrue(operation1.repositories().contains(repository2));
+        assertTrue(operation1.dependencies().scope(Scope.compile).contains(dependency1));
+        assertTrue(operation1.dependencies().scope(Scope.compile).contains(dependency2));
+        assertEquals(dir1, operation1.libCompileDirectory());
+        assertEquals(dir2, operation1.libRuntimeDirectory());
+        assertEquals(dir3, operation1.libStandaloneDirectory());
+        assertEquals(dir4, operation1.libTestDirectory());
+
+        var operation2 = new DownloadOperation()
+            .libCompileDirectory(dir1)
+            .libRuntimeDirectory(dir2)
+            .libStandaloneDirectory(dir3)
+            .libTestDirectory(dir4);
+        operation2.repositories().add(repository1);
+        operation2.repositories().add(repository2);
+        operation2.dependencies().scope(Scope.compile).include(dependency1).include(dependency2);
+        operation2.dependencies(dependency_scopes);
+        assertTrue(operation2.repositories().contains(repository1));
+        assertTrue(operation2.repositories().contains(repository2));
+        assertTrue(operation2.dependencies().scope(Scope.compile).contains(dependency1));
+        assertTrue(operation2.dependencies().scope(Scope.compile).contains(dependency2));
+        assertEquals(dir1, operation2.libCompileDirectory());
+        assertEquals(dir2, operation2.libRuntimeDirectory());
+        assertEquals(dir3, operation2.libStandaloneDirectory());
+        assertEquals(dir4, operation2.libTestDirectory());
+
+        var operation3 = new DownloadOperation()
+            .repositories(repository1, repository2);
+        assertTrue(operation3.repositories().contains(repository1));
+        assertTrue(operation3.repositories().contains(repository2));
+    }
+
+    @Test
+    void testExecution()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var dir1 = new File(tmp, "dir1");
+            var dir2 = new File(tmp, "dir2");
+            var dir3 = new File(tmp, "dir3");
+            var dir4 = new File(tmp, "dir4");
+            dir1.mkdirs();
+            dir2.mkdirs();
+            dir3.mkdirs();
+            dir4.mkdirs();
+
+            var operation = new DownloadOperation()
+                .repositories(List.of(Repository.MAVEN_CENTRAL))
+                .libCompileDirectory(dir1)
+                .libRuntimeDirectory(dir2)
+                .libStandaloneDirectory(dir3)
+                .libTestDirectory(dir4);
+            operation.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 12, 0)));
+            operation.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 4)));
+            operation.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 6)));
+            operation.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 2, 1)));
+
+            operation.execute();
+
+            assertEquals("""
+                    /dir1
+                    /dir1/commons-lang3-3.12.0.jar
+                    /dir2
+                    /dir2/commons-collections4-4.4.jar
+                    /dir3
+                    /dir3/slf4j-api-2.0.6.jar
+                    /dir3/slf4j-simple-2.0.6.jar
+                    /dir4
+                    /dir4/httpclient5-5.2.1.jar
+                    /dir4/httpcore5-5.2.jar
+                    /dir4/httpcore5-h2-5.2.jar
+                    /dir4/slf4j-api-1.7.36.jar""",
+                FileUtils.generateDirectoryListing(tmp));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testExecutionAdditionalSourcesJavadoc()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var dir1 = new File(tmp, "dir1");
+            var dir2 = new File(tmp, "dir2");
+            var dir3 = new File(tmp, "dir3");
+            var dir4 = new File(tmp, "dir4");
+            dir1.mkdirs();
+            dir2.mkdirs();
+            dir3.mkdirs();
+            dir4.mkdirs();
+
+            var operation = new DownloadOperation()
+                .repositories(List.of(Repository.MAVEN_CENTRAL))
+                .libCompileDirectory(dir1)
+                .libRuntimeDirectory(dir2)
+                .libStandaloneDirectory(dir3)
+                .libTestDirectory(dir4)
+                .downloadJavadoc(true)
+                .downloadSources(true);
+            operation.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 12, 0)));
+            operation.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 4)));
+            operation.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 6)));
+            operation.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 2, 1)));
+
+            operation.execute();
+
+            assertEquals("""
+                    /dir1
+                    /dir1/commons-lang3-3.12.0-javadoc.jar
+                    /dir1/commons-lang3-3.12.0-sources.jar
+                    /dir1/commons-lang3-3.12.0.jar
+                    /dir2
+                    /dir2/commons-collections4-4.4-javadoc.jar
+                    /dir2/commons-collections4-4.4-sources.jar
+                    /dir2/commons-collections4-4.4.jar
+                    /dir3
+                    /dir3/slf4j-api-2.0.6-javadoc.jar
+                    /dir3/slf4j-api-2.0.6-sources.jar
+                    /dir3/slf4j-api-2.0.6.jar
+                    /dir3/slf4j-simple-2.0.6-javadoc.jar
+                    /dir3/slf4j-simple-2.0.6-sources.jar
+                    /dir3/slf4j-simple-2.0.6.jar
+                    /dir4
+                    /dir4/httpclient5-5.2.1-javadoc.jar
+                    /dir4/httpclient5-5.2.1-sources.jar
+                    /dir4/httpclient5-5.2.1.jar
+                    /dir4/httpcore5-5.2-javadoc.jar
+                    /dir4/httpcore5-5.2-sources.jar
+                    /dir4/httpcore5-5.2.jar
+                    /dir4/httpcore5-h2-5.2-javadoc.jar
+                    /dir4/httpcore5-h2-5.2-sources.jar
+                    /dir4/httpcore5-h2-5.2.jar
+                    /dir4/slf4j-api-1.7.36-javadoc.jar
+                    /dir4/slf4j-api-1.7.36-sources.jar
+                    /dir4/slf4j-api-1.7.36.jar""",
+                FileUtils.generateDirectoryListing(tmp));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    static class TestProject extends WebProject {
+        public TestProject(File tmp) {
+            workDirectory = tmp;
+            pkg = "test.pkg";
+            downloadSources = true;
+        }
+    }
+
+    @Test
+    void testFromProject()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var project = new TestProject(tmp);
+            project.createProjectStructure();
+            project.repositories().add(Repository.MAVEN_CENTRAL);
+            project.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 12, 0)));
+            project.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 4)));
+            project.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 6)));
+            project.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 2, 1)));
+
+            var operation = new DownloadOperation()
+                .fromProject(project);
+
+            operation.execute();
+
+            assertEquals("""
+                    /lib
+                    /lib/bld
+                    /lib/compile
+                    /lib/compile/commons-lang3-3.12.0-sources.jar
+                    /lib/compile/commons-lang3-3.12.0.jar
+                    /lib/runtime
+                    /lib/runtime/commons-collections4-4.4-sources.jar
+                    /lib/runtime/commons-collections4-4.4.jar
+                    /lib/standalone
+                    /lib/standalone/slf4j-api-2.0.6-sources.jar
+                    /lib/standalone/slf4j-api-2.0.6.jar
+                    /lib/standalone/slf4j-simple-2.0.6-sources.jar
+                    /lib/standalone/slf4j-simple-2.0.6.jar
+                    /lib/test
+                    /lib/test/httpclient5-5.2.1-sources.jar
+                    /lib/test/httpclient5-5.2.1.jar
+                    /lib/test/httpcore5-5.2-sources.jar
+                    /lib/test/httpcore5-5.2.jar
+                    /lib/test/httpcore5-h2-5.2-sources.jar
+                    /lib/test/httpcore5-h2-5.2.jar
+                    /lib/test/slf4j-api-1.7.36-sources.jar
+                    /lib/test/slf4j-api-1.7.36.jar
+                    /src
+                    /src/bld
+                    /src/bld/java
+                    /src/bld/resources
+                    /src/main
+                    /src/main/java
+                    /src/main/resources
+                    /src/main/resources/templates
+                    /src/test
+                    /src/test/java
+                    /src/test/resources""",
+                FileUtils.generateDirectoryListing(tmp));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testFromProject2()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var project = new TestProject(tmp);
+            project.createProjectStructure();
+            project.repositories().add(Repository.MAVEN_CENTRAL);
+            project.dependencies().scope(Scope.compile)
+                .include(new Dependency("com.stripe", "stripe-java", new VersionNumber(20,136,0)));
+
+            var operation = new DownloadOperation()
+                .fromProject(project);
+
+            operation.execute();
+
+            assertEquals("""
+                    /lib
+                    /lib/bld
+                    /lib/compile
+                    /lib/compile/stripe-java-20.136.0-sources.jar
+                    /lib/compile/stripe-java-20.136.0.jar
+                    /lib/runtime
+                    /lib/runtime/gson-2.9.0-sources.jar
+                    /lib/runtime/gson-2.9.0.jar
+                    /lib/standalone
+                    /lib/test
+                    /src
+                    /src/bld
+                    /src/bld/java
+                    /src/bld/resources
+                    /src/main
+                    /src/main/java
+                    /src/main/resources
+                    /src/main/resources/templates
+                    /src/test
+                    /src/test/java
+                    /src/test/resources""",
+                FileUtils.generateDirectoryListing(tmp));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestJUnitOperation.java b/src/test/java/rife/bld/operations/TestJUnitOperation.java
new file mode 100644
index 0000000..a2b1c43
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestJUnitOperation.java
@@ -0,0 +1,213 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+import java.util.function.Function;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
+public class TestJUnitOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new JUnitOperation();
+        assertNotNull(operation.workDirectory());
+        assertTrue(operation.workDirectory().exists());
+        assertTrue(operation.workDirectory().isDirectory());
+        assertTrue(operation.workDirectory().canWrite());
+        assertEquals("java", operation.javaTool());
+        assertTrue(operation.javaOptions().isEmpty());
+        assertTrue(operation.classpath().isEmpty());
+        assertNull(operation.mainClass());
+        assertNull(operation.outputProcessor());
+        assertNull(operation.errorProcessor());
+        assertNull(operation.process());
+    }
+
+    @Test
+    void testPopulation()
+    throws Exception {
+        var work_directory = Files.createTempDirectory("test").toFile();
+        try {
+            var java_tool = "javatool";
+            var test_java_option1 = "testJavaOption1";
+            var test_java_option2 = "testJavaOption2";
+            var test_classpath1 = "testClasspath1";
+            var test_classpath2 = "testClasspath2";
+            var test_tool_main_class = "testToolMainClass";
+            var test_tool_option1 = "testToolOption1";
+            var test_tool_option2 = "testToolOption2";
+            Function<String, Boolean> test_output_consumer = (String) -> true;
+            Function<String, Boolean> test_error_consumer = (String) -> true;
+
+            var operation1 = new JUnitOperation();
+            operation1
+                .workDirectory(work_directory)
+                .javaTool(java_tool)
+                .javaOptions(List.of(test_java_option1, test_java_option2))
+                .testToolOptions(List.of(test_tool_option1, test_tool_option2))
+                .classpath(List.of(test_classpath1, test_classpath2))
+                .mainClass(test_tool_main_class)
+                .outputProcessor(test_output_consumer)
+                .errorProcessor(test_error_consumer);
+
+            assertEquals(work_directory, operation1.workDirectory());
+            assertEquals(java_tool, operation1.javaTool());
+            assertTrue(operation1.javaOptions().contains(test_java_option1));
+            assertTrue(operation1.javaOptions().contains(test_java_option2));
+            assertTrue(operation1.testToolOptions().contains(test_tool_option1));
+            assertTrue(operation1.testToolOptions().contains(test_tool_option2));
+            assertTrue(operation1.classpath().contains(test_classpath1));
+            assertTrue(operation1.classpath().contains(test_classpath2));
+            assertEquals(test_tool_main_class, operation1.mainClass());
+            assertSame(test_output_consumer, operation1.outputProcessor());
+            assertSame(test_error_consumer, operation1.errorProcessor());
+
+            var operation2 = new JUnitOperation();
+            operation2.workDirectory(work_directory);
+            operation2.javaTool(java_tool);
+            operation2.javaOptions().add(test_java_option1);
+            operation2.javaOptions().add(test_java_option2);
+            operation2.testToolOptions().add(test_tool_option1);
+            operation2.testToolOptions().add(test_tool_option2);
+            operation2.classpath().add(test_classpath1);
+            operation2.classpath().add(test_classpath2);
+            operation2.mainClass(test_tool_main_class);
+            operation2.outputProcessor(test_output_consumer);
+            operation2.errorProcessor(test_error_consumer);
+
+            assertEquals(work_directory, operation2.workDirectory());
+            assertEquals(java_tool, operation2.javaTool());
+            assertTrue(operation2.javaOptions().contains(test_java_option1));
+            assertTrue(operation2.javaOptions().contains(test_java_option2));
+            assertTrue(operation2.testToolOptions().contains(test_tool_option1));
+            assertTrue(operation2.testToolOptions().contains(test_tool_option2));
+            assertTrue(operation2.classpath().contains(test_classpath1));
+            assertTrue(operation2.classpath().contains(test_classpath2));
+            assertEquals(test_tool_main_class, operation2.mainClass());
+            assertSame(test_output_consumer, operation2.outputProcessor());
+            assertSame(test_error_consumer, operation2.errorProcessor());
+
+            var operation3 = new JUnitOperation();
+            operation3
+                .classpath(test_classpath1, test_classpath2)
+                .testToolOptions(test_tool_option1, test_tool_option2);
+
+            assertTrue(operation3.classpath().contains(test_classpath1));
+            assertTrue(operation3.classpath().contains(test_classpath2));
+            assertTrue(operation3.testToolOptions().contains(test_tool_option1));
+            assertTrue(operation3.testToolOptions().contains(test_tool_option2));
+        } finally {
+            FileUtils.deleteDirectory(work_directory);
+        }
+    }
+
+    @Test
+    void testExecute()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var source_file1 = new File(tmp, "Source1.java");
+            var source_file2 = new File(tmp, "Source2.java");
+
+            FileUtils.writeString("""
+                public class Source1 {
+                    public final String name_;
+                    public Source1() {
+                        name_ = "source1";
+                    }
+                    
+                    public static void main(String[] arguments)
+                    throws Exception {
+                        System.out.print(new Source1().name_);
+                    }
+                }
+                """, source_file1);
+            FileUtils.writeString("""
+                public class Source2 {
+                    public static void main(String[] arguments)
+                    throws Exception {
+                        System.out.print(new Source1().name_.equals("source1"));
+                    }
+                }
+                """, source_file2);
+            var build_main = new File(tmp, "buildMain");
+            var build_test = new File(tmp, "buildTest");
+
+            var compile_operation = new CompileOperation()
+                .buildMainDirectory(build_main)
+                .buildTestDirectory(build_test)
+                .compileMainClasspath(List.of(build_main.getAbsolutePath()))
+                .compileTestClasspath(List.of(build_main.getAbsolutePath(), build_test.getAbsolutePath()))
+                .mainSourceFiles(List.of(source_file1))
+                .testSourceFiles(List.of(source_file2));
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+
+            var output = new StringBuilder();
+            var test_operation = new JUnitOperation()
+                .mainClass("Source2")
+                .classpath(List.of(build_main.getAbsolutePath(), build_test.getAbsolutePath()))
+                .outputProcessor(s -> {
+                    output.append(s);
+                    return true;
+                });
+            test_operation.execute();
+
+            assertEquals("true", output.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testFromProject()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateBlankOperation()
+                .workDirectory(tmp)
+                .packageName("com.example")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation.project()).execute();
+
+            var check_result = new StringBuilder();
+            new JUnitOperation()
+                .fromProject(create_operation.project())
+                .outputProcessor(s -> {
+                    check_result.append(s).append(System.lineSeparator());
+                    return true;
+                })
+                .execute();
+            assertTrue(check_result.toString().contains("""
+                [         2 containers found      ]
+                [         0 containers skipped    ]
+                [         2 containers started    ]
+                [         0 containers aborted    ]
+                [         2 containers successful ]
+                [         0 containers failed     ]
+                [         1 tests found           ]
+                [         0 tests skipped         ]
+                [         1 tests started         ]
+                [         0 tests aborted         ]
+                [         1 tests successful      ]
+                [         0 tests failed          ]
+                """));
+
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestJarOperation.java b/src/test/java/rife/bld/operations/TestJarOperation.java
new file mode 100644
index 0000000..46a3174
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestJarOperation.java
@@ -0,0 +1,218 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.NamedFile;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+import java.util.Map;
+import java.util.jar.Attributes;
+import java.util.jar.JarFile;
+import java.util.regex.Pattern;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestJarOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new JarOperation();
+        assertTrue(operation.manifestAttributes().isEmpty());
+        assertTrue(operation.sourceDirectories().isEmpty());
+        assertTrue(operation.sourceFiles().isEmpty());
+        assertNull(operation.destinationDirectory());
+        assertNull(operation.destinationFileName());
+        assertTrue(operation.included().isEmpty());
+        assertTrue(operation.excluded().isEmpty());
+    }
+
+    @Test
+    void testPopulation() {
+        var manifest_attribute_1a = Attributes.Name.MANIFEST_VERSION;
+        var manifest_attribute_1b = "manifestAttribute1";
+        var manifest_attribute_2a = Attributes.Name.MAIN_CLASS;
+        var manifest_Attribute_2b = "manifestAttribute2";
+        var source_directory1 = new File("sourceDirectory1");
+        var source_directory2 = new File("sourceDirectory2");
+        var source_file1 = new NamedFile("sourceFile1", new File("sourceFile1"));
+        var source_file2 = new NamedFile("sourceFile2", new File("sourceFile2"));
+        var destination_directory = new File("destinationDirectory");
+        var destination_fileName = "destinationFileName";
+        var included1 = Pattern.compile("included1");
+        var included2 = Pattern.compile("included2");
+        var excluded1 = Pattern.compile("excluded1");
+        var excluded2 = Pattern.compile("excluded2");
+
+        var operation1 = new JarOperation()
+            .manifestAttributes(Map.of(manifest_attribute_1a, manifest_attribute_1b, manifest_attribute_2a, manifest_Attribute_2b))
+            .sourceDirectories(List.of(source_directory1, source_directory2))
+            .sourceFiles(List.of(source_file1, source_file2))
+            .destinationDirectory(destination_directory)
+            .destinationFileName(destination_fileName)
+            .included(List.of(included1, included2))
+            .excluded(List.of(excluded1, excluded2));
+
+        assertEquals(manifest_attribute_1b, operation1.manifestAttributes().get(manifest_attribute_1a));
+        assertEquals(manifest_Attribute_2b, operation1.manifestAttributes().get(manifest_attribute_2a));
+        assertTrue(operation1.sourceDirectories().contains(source_directory1));
+        assertTrue(operation1.sourceDirectories().contains(source_directory2));
+        assertTrue(operation1.sourceFiles().contains(source_file1));
+        assertTrue(operation1.sourceFiles().contains(source_file2));
+        assertEquals(destination_directory, operation1.destinationDirectory());
+        assertEquals(destination_fileName, operation1.destinationFileName());
+        assertEquals(new File(destination_directory, destination_fileName), operation1.destinationFile());
+        assertTrue(operation1.included().contains(included1));
+        assertTrue(operation1.included().contains(included2));
+        assertTrue(operation1.excluded().contains(excluded1));
+        assertTrue(operation1.excluded().contains(excluded2));
+
+        var operation2 = new JarOperation()
+            .destinationDirectory(destination_directory)
+            .destinationFileName(destination_fileName);
+        operation2.manifestAttributes().put(manifest_attribute_1a, manifest_attribute_1b);
+        operation2.manifestAttributes().put(manifest_attribute_2a, manifest_Attribute_2b);
+        operation2.sourceDirectories().add(source_directory1);
+        operation2.sourceDirectories().add(source_directory2);
+        operation2.sourceFiles().add(source_file1);
+        operation2.sourceFiles().add(source_file2);
+        operation2.included().add(included1);
+        operation2.included().add(included2);
+        operation2.excluded().add(excluded1);
+        operation2.excluded().add(excluded2);
+
+        assertEquals(manifest_attribute_1b, operation2.manifestAttributes().get(manifest_attribute_1a));
+        assertEquals(manifest_Attribute_2b, operation2.manifestAttributes().get(manifest_attribute_2a));
+        assertTrue(operation2.sourceDirectories().contains(source_directory1));
+        assertTrue(operation2.sourceDirectories().contains(source_directory2));
+        assertTrue(operation2.sourceFiles().contains(source_file1));
+        assertTrue(operation2.sourceFiles().contains(source_file2));
+        assertEquals(destination_directory, operation2.destinationDirectory());
+        assertEquals(destination_fileName, operation2.destinationFileName());
+        assertTrue(operation2.included().contains(included1));
+        assertTrue(operation2.included().contains(included2));
+        assertTrue(operation2.excluded().contains(excluded1));
+        assertTrue(operation2.excluded().contains(excluded2));
+
+        var operation3 = new JarOperation()
+            .manifestAttribute(manifest_attribute_1a, manifest_attribute_1b)
+            .manifestAttribute(manifest_attribute_2a, manifest_Attribute_2b)
+            .sourceDirectories(source_directory1, source_directory2)
+            .sourceFiles(source_file1, source_file2)
+            .destinationDirectory(destination_directory)
+            .destinationFileName(destination_fileName)
+            .included(included1, included2)
+            .excluded(excluded1, excluded2);
+
+        assertEquals(manifest_attribute_1b, operation3.manifestAttributes().get(manifest_attribute_1a));
+        assertEquals(manifest_Attribute_2b, operation3.manifestAttributes().get(manifest_attribute_2a));
+        assertTrue(operation3.sourceDirectories().contains(source_directory1));
+        assertTrue(operation3.sourceDirectories().contains(source_directory2));
+        assertTrue(operation3.sourceFiles().contains(source_file1));
+        assertTrue(operation3.sourceFiles().contains(source_file2));
+        assertEquals(destination_directory, operation3.destinationDirectory());
+        assertEquals(destination_fileName, operation3.destinationFileName());
+        assertTrue(operation3.included().contains(included1));
+        assertTrue(operation3.included().contains(included2));
+        assertTrue(operation3.excluded().contains(excluded1));
+        assertTrue(operation3.excluded().contains(excluded2));
+    }
+
+    @Test
+    void testExecute()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var source_dir = new File(tmp, "source");
+            var destination_dir = new File(tmp, "destination");
+            var destination_name = "archive.jar";
+
+            source_dir.mkdirs();
+            FileUtils.writeString("source1", new File(source_dir, "source1.text"));
+            FileUtils.writeString("source2", new File(source_dir, "source2.text"));
+            FileUtils.writeString("source3", new File(source_dir, "source3.text"));
+            FileUtils.writeString("source4", new File(source_dir, "source4.txt"));
+            var source5 = new File(tmp, "source5.text");
+            var source6 = new File(tmp, "source6.text");
+            FileUtils.writeString("source5", source5);
+            FileUtils.writeString("source6", source6);
+
+            new JarOperation()
+                .sourceDirectories(List.of(source_dir))
+                .sourceFiles(List.of(
+                    new NamedFile("src5.txt", source5),
+                    new NamedFile("src6.txt", source6)))
+                .destinationDirectory(destination_dir)
+                .destinationFileName(destination_name)
+                .included("source.*\\.text")
+                .excluded("source5.*")
+                .execute();
+
+            var jar_archive = new File(destination_dir, destination_name);
+            assertTrue(jar_archive.exists());
+
+            var content = new StringBuilder();
+            try (var jar = new JarFile(jar_archive)) {
+                var e = jar.entries();
+                while (e.hasMoreElements()) {
+                    var jar_entry = e.nextElement();
+                    content.append(jar_entry.getName());
+                    content.append("\n");
+                }
+            }
+
+            assertEquals("""
+                META-INF/MANIFEST.MF
+                source1.text
+                source2.text
+                source3.text
+                src6.txt
+                """, content.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testFromProject()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateBlankOperation()
+                .workDirectory(tmp)
+                .packageName("tst")
+                .projectName("app")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation.project())
+                .execute();
+
+            var jar_operation = new JarOperation()
+                .fromProject(create_operation.project());
+            jar_operation.execute();
+
+            var content = new StringBuilder();
+            try (var jar = new JarFile(new File(jar_operation.destinationDirectory(), jar_operation.destinationFileName()))) {
+                var e = jar.entries();
+                while (e.hasMoreElements()) {
+                    var jar_entry = e.nextElement();
+                    content.append(jar_entry.getName());
+                    content.append("\n");
+                }
+            }
+
+            assertEquals("""
+                META-INF/MANIFEST.MF
+                tst/AppMain.class
+                """, content.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestJavadocOperation.java b/src/test/java/rife/bld/operations/TestJavadocOperation.java
new file mode 100644
index 0000000..6224d84
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestJavadocOperation.java
@@ -0,0 +1,368 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.operations.exceptions.ExitStatusException;
+import rife.tools.FileUtils;
+
+import javax.tools.DiagnosticCollector;
+import javax.tools.JavaFileObject;
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+import java.util.regex.Pattern;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestJavadocOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new JavadocOperation();
+        assertNull(operation.buildDirectory());
+        assertTrue(operation.classpath().isEmpty());
+        assertTrue(operation.sourceFiles().isEmpty());
+        assertTrue(operation.javadocOptions().isEmpty());
+        assertTrue(operation.diagnostics().isEmpty());
+        assertTrue(operation.included().isEmpty());
+        assertTrue(operation.excluded().isEmpty());
+    }
+
+    @Test
+    void testPopulation() {
+        var build_directory = new File("buildDirectory");
+        var classpath1 = "classpath1";
+        var classpath2 = "classpath2";
+        var source_file1 = new File("sourceFile1");
+        var source_file2 = new File("sourceFile2");
+        var source_dir1 = new File("sourceDir1");
+        var source_dir2 = new File("sourceDir2");
+        var javadoc_option1 = "javadocOption1";
+        var javadoc_option2 = "javadocOption2";
+        var included1 = Pattern.compile("included1");
+        var included2 = Pattern.compile("included2");
+        var excluded1 = Pattern.compile("excluded1");
+        var excluded2 = Pattern.compile("excluded2");
+
+        var operation1 = new JavadocOperation()
+            .buildDirectory(build_directory)
+            .classpath(List.of(classpath1, classpath2))
+            .sourceFiles(List.of(source_file1, source_file2))
+            .sourceDirectories(List.of(source_dir1, source_dir2))
+            .javadocOptions(List.of(javadoc_option1, javadoc_option2))
+            .included(List.of(included1, included2))
+            .excluded(List.of(excluded1, excluded2));
+
+        assertEquals(build_directory, operation1.buildDirectory());
+        assertTrue(operation1.classpath().contains(classpath1));
+        assertTrue(operation1.classpath().contains(classpath2));
+        assertTrue(operation1.sourceFiles().contains(source_file1));
+        assertTrue(operation1.sourceFiles().contains(source_file2));
+        assertTrue(operation1.sourceDirectories().contains(source_dir1));
+        assertTrue(operation1.sourceDirectories().contains(source_dir2));
+        assertTrue(operation1.javadocOptions().contains(javadoc_option1));
+        assertTrue(operation1.javadocOptions().contains(javadoc_option2));
+        assertTrue(operation1.included().contains(included1));
+        assertTrue(operation1.included().contains(included2));
+        assertTrue(operation1.excluded().contains(excluded1));
+        assertTrue(operation1.excluded().contains(excluded2));
+
+        var operation2 = new JavadocOperation()
+            .buildDirectory(build_directory);
+        operation2.classpath().add(classpath1);
+        operation2.classpath().add(classpath2);
+        operation2.sourceFiles().add(source_file1);
+        operation2.sourceFiles().add(source_file2);
+        operation2.sourceDirectories().add(source_dir1);
+        operation2.sourceDirectories().add(source_dir2);
+        operation2.javadocOptions().add(javadoc_option1);
+        operation2.javadocOptions().add(javadoc_option2);
+        operation2.included().add(included1);
+        operation2.included().add(included2);
+        operation2.excluded().add(excluded1);
+        operation2.excluded().add(excluded2);
+
+        assertEquals(build_directory, operation2.buildDirectory());
+        assertTrue(operation2.classpath().contains(classpath1));
+        assertTrue(operation2.classpath().contains(classpath2));
+        assertTrue(operation2.sourceFiles().contains(source_file1));
+        assertTrue(operation2.sourceFiles().contains(source_file2));
+        assertTrue(operation2.sourceDirectories().contains(source_dir1));
+        assertTrue(operation2.sourceDirectories().contains(source_dir2));
+        assertTrue(operation2.javadocOptions().contains(javadoc_option1));
+        assertTrue(operation2.javadocOptions().contains(javadoc_option2));
+        assertTrue(operation2.included().contains(included1));
+        assertTrue(operation2.included().contains(included2));
+        assertTrue(operation2.excluded().contains(excluded1));
+        assertTrue(operation2.excluded().contains(excluded2));
+
+        var operation3 = new JavadocOperation()
+            .buildDirectory(build_directory)
+            .classpath(classpath1, classpath2)
+            .sourceFiles(source_file1, source_file2)
+            .sourceDirectories(source_dir1, source_dir2)
+            .javadocOptions(List.of(javadoc_option1, javadoc_option2))
+            .included(included1, included2)
+            .excluded(excluded1, excluded2);
+
+        assertEquals(build_directory, operation3.buildDirectory());
+        assertTrue(operation3.classpath().contains(classpath1));
+        assertTrue(operation3.classpath().contains(classpath2));
+        assertTrue(operation3.sourceFiles().contains(source_file1));
+        assertTrue(operation3.sourceFiles().contains(source_file2));
+        assertTrue(operation3.sourceDirectories().contains(source_dir1));
+        assertTrue(operation3.sourceDirectories().contains(source_dir2));
+        assertTrue(operation3.javadocOptions().contains(javadoc_option1));
+        assertTrue(operation3.javadocOptions().contains(javadoc_option2));
+        assertTrue(operation3.included().contains(included1));
+        assertTrue(operation3.included().contains(included2));
+        assertTrue(operation3.excluded().contains(excluded1));
+        assertTrue(operation3.excluded().contains(excluded2));
+    }
+
+    @Test
+    void testExecute()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var source_file1 = new File(tmp, "Source1.java");
+            var source_file2 = new File(tmp, "Source2.java");
+            var source_file3 = new File(tmp, "Source3.java");
+
+            FileUtils.writeString("""
+                public class Source1 {
+                    public final String name_;
+                    public Source1() {
+                        name_ = "source1";
+                    }
+                }
+                """, source_file1);
+
+            FileUtils.writeString("""
+                public class Source2 {
+                    public final String name_;
+                    public Source2(Source1 source1) {
+                        name_ = source1.name_;
+                    }
+                }
+                """, source_file2);
+
+            FileUtils.writeString("""
+                public class Source3 {
+                    public final String name1_;
+                    public final String name2_;
+                    public Source3(Source1 source1, Source2 source2) {
+                        name1_ = source1.name_;
+                        name2_ = source2.name_;
+                    }
+                }
+                """, source_file3);
+            var build = new File(tmp, "build");
+            var build_html1 = new File(build, "Source1.html");
+            var build_html2 = new File(build, "Source2.html");
+            var build_html3 = new File(build, "Source3.html");
+            var build_index_html = new File(build, "index.html");
+            var build_index_all_html = new File(build, "index-all.html");
+
+            assertFalse(build_html1.exists());
+            assertFalse(build_html2.exists());
+            assertFalse(build_html3.exists());
+            assertFalse(build_index_html.exists());
+            assertFalse(build_index_all_html.exists());
+
+            var operation = new JavadocOperation()
+                .buildDirectory(build)
+                .classpath(List.of(build.getAbsolutePath()))
+                .sourceFiles(List.of(source_file1, source_file2, source_file3));
+            operation.execute();
+            assertTrue(operation.diagnostics().isEmpty());
+
+            assertTrue(build_html1.exists());
+            assertTrue(build_html2.exists());
+            assertTrue(build_html3.exists());
+            assertTrue(build_index_html.exists());
+            assertTrue(build_index_all_html.exists());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testIncludeExclude()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var source_file1 = new File(tmp, "Source1.java");
+            var source_file2 = new File(tmp, "Source2.java");
+            var source_file3 = new File(tmp, "Source3.java");
+
+            FileUtils.writeString("""
+                public class Source1 {
+                    public final String name_;
+                    public Source1() {
+                        name_ = "source1";
+                    }
+                }
+                """, source_file1);
+
+            FileUtils.writeString("""
+                public class Source2 {
+                    public final String name_;
+                    public Source2(String name) {
+                        name_ = name;
+                    }
+                }
+                """, source_file2);
+
+            FileUtils.writeString("""
+                public class Source3 {
+                    public final String name1_;
+                    public final String name2_;
+                    public Source3(Source1 source1, Source2 source2) {
+                        name1_ = source1.name_;
+                        name2_ = source2.name_;
+                    }
+                }
+                """, source_file3);
+            var build = new File(tmp, "build");
+            var build_html1 = new File(build, "Source1.html");
+            var build_html2 = new File(build, "Source2.html");
+            var build_html3 = new File(build, "Source3.html");
+            var build_index_html = new File(build, "index.html");
+            var build_index_all_html = new File(build, "index-all.html");
+
+            assertFalse(build_html1.exists());
+            assertFalse(build_html2.exists());
+            assertFalse(build_html3.exists());
+            assertFalse(build_index_html.exists());
+            assertFalse(build_index_all_html.exists());
+
+            var operation = new JavadocOperation()
+                .buildDirectory(build)
+                .classpath(List.of(build.getAbsolutePath()))
+                .sourceFiles(List.of(source_file1, source_file2, source_file3))
+                .included("Source([12])")
+                .excluded("Source1");
+            operation.execute();
+            assertTrue(operation.diagnostics().isEmpty());
+
+            assertFalse(build_html1.exists());
+            assertTrue(build_html2.exists());
+            assertFalse(build_html3.exists());
+            assertTrue(build_index_html.exists());
+            assertTrue(build_index_all_html.exists());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testFromProject()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateBlankOperation()
+                .workDirectory(tmp)
+                .packageName("tst")
+                .projectName("app")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            var javadoc_operation = new JavadocOperation()
+                .fromProject(create_operation.project());
+
+            var main_app_html = new File(new File(javadoc_operation.buildDirectory(), "tst"), "AppMain.html");
+            var index_html = new File(javadoc_operation.buildDirectory(), "index.html");
+            var index_all_html = new File(javadoc_operation.buildDirectory(), "index-all.html");
+            assertFalse(main_app_html.exists());
+            assertFalse(index_html.exists());
+            assertFalse(index_all_html.exists());
+
+            javadoc_operation.execute();
+            assertTrue(javadoc_operation.diagnostics().isEmpty());
+
+            assertTrue(main_app_html.exists());
+            assertTrue(index_html.exists());
+            assertTrue(index_all_html.exists());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testExecuteGenerationErrors()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var source_file1 = new File(tmp, "Source1.java");
+            var source_file2 = new File(tmp, "Source2.java");
+            var source_file3 = new File(tmp, "Source3.java");
+
+            FileUtils.writeString("""
+                public class Source1 {
+                    public final String;
+                    public Source1() {
+                        name_ = "source1";
+                    }
+                }
+                """, source_file1);
+
+            FileUtils.writeString("""
+                public class Source2 {
+                    public final String name_;
+                    public Source2(Source1B source1) {
+                        noName_ = source1.name_;
+                    }
+                }
+                """, source_file2);
+
+            FileUtils.writeString("""
+                public class Source3 {
+                    public final String name1_;
+                    public final String name2_;
+                    public Source3(Source1 source1, Source2 source2) {
+                        name_ = source1.name_;
+                        name_ = source2.name_;
+                    }
+                }
+                """, source_file3);
+            var build = new File(tmp, "build");
+            var build_html1 = new File(build, "Source1.html");
+            var build_html2 = new File(build, "Source2.html");
+            var build_html3 = new File(build, "Source3.html");
+            var build_index_html = new File(build, "index.html");
+            var build_index_all_html = new File(build, "index-all.html");
+
+            assertFalse(build_html1.exists());
+            assertFalse(build_html2.exists());
+            assertFalse(build_html3.exists());
+            assertFalse(build_index_html.exists());
+            assertFalse(build_index_all_html.exists());
+
+            var operation = new JavadocOperation() {
+                public void executeProcessDiagnostics(DiagnosticCollector<JavaFileObject> diagnostics) {
+                    // don't output diagnostics
+                }
+            };
+            operation.buildDirectory(build)
+                .classpath(List.of(build.getAbsolutePath()))
+                .sourceFiles(List.of(source_file1, source_file2, source_file3));
+            assertThrows(ExitStatusException.class, operation::execute);
+            assertEquals(2, operation.diagnostics().size());
+
+            var diagnostic1 = operation.diagnostics().get(0);
+
+            assertEquals("/Source1.java", diagnostic1.getSource().toUri().getPath().substring(tmp.getAbsolutePath().length()));
+
+            assertFalse(build_html1.exists());
+            assertFalse(build_html2.exists());
+            assertFalse(build_html3.exists());
+            assertFalse(build_index_html.exists());
+            assertFalse(build_index_all_html.exists());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestPrecompileOperation.java b/src/test/java/rife/bld/operations/TestPrecompileOperation.java
new file mode 100644
index 0000000..cffb290
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestPrecompileOperation.java
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestPrecompileOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new PrecompileOperation();
+        assertTrue(operation.templateTypes().isEmpty());
+        assertTrue(operation.sourceDirectories().isEmpty());
+        assertNull(operation.destinationDirectory());
+    }
+
+    @Test
+    void testPopulation() {
+        var source_directory1 = new File("sourceDirectory1");
+        var source_directory2 = new File("sourceDirectory2");
+        var destination_directory = new File("destinationDirectory");
+
+        var operation1 = new PrecompileOperation()
+            .templateTypes(List.of(TemplateType.HTML, TemplateType.JSON))
+            .sourceDirectories(List.of(source_directory1, source_directory2))
+            .destinationDirectory(destination_directory);
+
+        assertTrue(operation1.templateTypes().contains(TemplateType.HTML));
+        assertTrue(operation1.templateTypes().contains(TemplateType.JSON));
+        assertTrue(operation1.sourceDirectories().contains(source_directory1));
+        assertTrue(operation1.sourceDirectories().contains(source_directory2));
+        assertEquals(destination_directory, operation1.destinationDirectory());
+
+        var operation2 = new PrecompileOperation()
+            .destinationDirectory(destination_directory);
+        operation2.templateTypes().add(TemplateType.HTML);
+        operation2.templateTypes().add(TemplateType.JSON);
+        operation2.sourceDirectories().add(source_directory1);
+        operation2.sourceDirectories().add(source_directory2);
+
+        assertTrue(operation2.templateTypes().contains(TemplateType.HTML));
+        assertTrue(operation2.templateTypes().contains(TemplateType.JSON));
+        assertTrue(operation2.sourceDirectories().contains(source_directory1));
+        assertTrue(operation2.sourceDirectories().contains(source_directory2));
+        assertEquals(destination_directory, operation2.destinationDirectory());
+
+        var operation3 = new PrecompileOperation()
+            .templateTypes(TemplateType.HTML, TemplateType.JSON)
+            .sourceDirectories(source_directory1, source_directory2)
+            .destinationDirectory(destination_directory);
+
+        assertTrue(operation3.templateTypes().contains(TemplateType.HTML));
+        assertTrue(operation3.templateTypes().contains(TemplateType.JSON));
+        assertTrue(operation3.sourceDirectories().contains(source_directory1));
+        assertTrue(operation3.sourceDirectories().contains(source_directory2));
+        assertEquals(destination_directory, operation3.destinationDirectory());
+    }
+
+    @Test
+    void testExecute()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var source1 = new File(tmp, "source1");
+            var source2 = new File(tmp, "source2");
+            var destination = new File(tmp, "destination");
+            source1.mkdirs();
+            source2.mkdirs();
+
+            FileUtils.writeString("""
+                <p><!--v test1a/--></p>
+                """, new File(source1, "source1a.html"));
+            FileUtils.writeString("""
+                {
+                    "test1b": "{{v test1b/}}"
+                }
+                """, new File(source1, "source1b.json"));
+            FileUtils.writeString("""
+                <div><!--v test2/--></div>
+                """, new File(source2, "source2.html"));
+
+            var precompile_operation = new PrecompileOperation()
+                .templateTypes(List.of(TemplateType.HTML, TemplateType.JSON))
+                .sourceDirectories(List.of(source1, source2))
+                .destinationDirectory(destination);
+            precompile_operation.execute();
+
+            assertEquals("""
+                    /rife
+                    /rife/template
+                    /rife/template/html
+                    /rife/template/html/source1a.class
+                    /rife/template/html/source2.class
+                    /rife/template/json
+                    /rife/template/json/source1b.class""",
+                FileUtils.generateDirectoryListing(destination));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testFromProject()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateRife2Operation()
+                .workDirectory(tmp)
+                .packageName("tst")
+                .projectName("app")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            var precompile_operation = new PrecompileOperation()
+                .templateTypes(List.of(TemplateType.HTML))
+                .fromProject(create_operation.project());
+            precompile_operation.execute();
+
+            assertEquals("""
+                    /rife
+                    /rife/template
+                    /rife/template/html
+                    /rife/template/html/hello.class""",
+                FileUtils.generateDirectoryListing(precompile_operation.destinationDirectory()));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestPublishOperation.java b/src/test/java/rife/bld/operations/TestPublishOperation.java
new file mode 100644
index 0000000..60f5ecb
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestPublishOperation.java
@@ -0,0 +1,689 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.json.JSONObject;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import rife.bld.Project;
+import rife.bld.blueprints.BlankProjectBlueprint;
+import rife.bld.dependencies.*;
+import rife.bld.publish.PublishArtifact;
+import rife.tools.FileUtils;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import java.io.File;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestPublishOperation {
+    static File reposiliteJar_ = null;
+
+    @BeforeAll
+    static void downloadReposilite()
+    throws Exception {
+        reposiliteJar_ = File.createTempFile("reposilite", "jar");
+        reposiliteJar_.deleteOnExit();
+        System.out.print("Downloading: https://maven.reposilite.com/releases/com/reposilite/reposilite/3.4.0/reposilite-3.4.0-all.jar ...");
+        System.out.flush();
+        FileUtils.copy(new URL("https://maven.reposilite.com/releases/com/reposilite/reposilite/3.4.0/reposilite-3.4.0-all.jar").openStream(), reposiliteJar_);
+        System.out.println("done");
+    }
+
+    @AfterAll
+    static void deleteReposilite()
+    throws Exception {
+        if (reposiliteJar_ != null) {
+            reposiliteJar_.delete();
+            reposiliteJar_ = null;
+        }
+    }
+
+    @Test
+    void testInstantiation() {
+        var operation = new PublishOperation();
+        assertTrue(operation.repositories().isEmpty());
+        assertNull(operation.moment());
+        assertTrue(operation.dependencies().isEmpty());
+        assertNotNull(operation.info());
+        assertNull(operation.info().groupId());
+        assertNull(operation.info().artifactId());
+        assertNull(operation.info().version());
+        assertNull(operation.info().name());
+        assertNull(operation.info().description());
+        assertNull(operation.info().url());
+        assertTrue(operation.info().licenses().isEmpty());
+        assertTrue(operation.info().developers().isEmpty());
+        assertNull(operation.info().scm());
+        assertTrue(operation.artifacts().isEmpty());
+    }
+
+    @Test
+    void testPopulation() {
+        var repository1 = new Repository("repository1");
+        var repository2 = new Repository("repository2");
+        var moment = ZonedDateTime.now();
+
+        var artifact1 = new PublishArtifact(new File("file1"), "classifier1", "type1");
+        var artifact2 = new PublishArtifact(new File("file2"), "classifier2", "type2");
+
+        var operation1 = new PublishOperation()
+            .repositories(repository1, repository2)
+            .moment(moment)
+            .artifacts(List.of(artifact1, artifact2));
+        assertTrue(operation1.repositories().contains(repository1));
+        assertTrue(operation1.repositories().contains(repository2));
+        assertEquals(moment, operation1.moment());
+        assertTrue(operation1.artifacts().contains(artifact1));
+        assertTrue(operation1.artifacts().contains(artifact2));
+
+        var operation2 = new PublishOperation()
+            .moment(moment);
+        operation2.repositories().add(repository1);
+        operation2.repositories().add(repository2);
+        operation2.artifacts().add(artifact1);
+        operation2.artifacts().add(artifact2);
+        assertTrue(operation2.repositories().contains(repository1));
+        assertTrue(operation2.repositories().contains(repository2));
+        assertEquals(moment, operation2.moment());
+        assertTrue(operation2.artifacts().contains(artifact1));
+        assertTrue(operation2.artifacts().contains(artifact2));
+
+        var operation3 = new PublishOperation()
+            .repository(repository1)
+            .repository(repository2)
+            .moment(moment)
+            .artifacts(List.of(artifact1, artifact2));
+        assertTrue(operation3.repositories().contains(repository1));
+        assertTrue(operation3.repositories().contains(repository2));
+        assertEquals(moment, operation3.moment());
+        assertTrue(operation3.artifacts().contains(artifact1));
+        assertTrue(operation3.artifacts().contains(artifact2));
+    }
+
+    @Test
+    void testPublishRelease()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        var tmp_reposilite = Files.createTempDirectory("test").toFile();
+        try {
+            var process_builder = new ProcessBuilder(
+                "java", "-jar", reposiliteJar_.getAbsolutePath(),
+                "-wd", tmp_reposilite.getAbsolutePath(),
+                "-p", "8081",
+                "--token", "manager:passwd");
+            process_builder.directory(tmp_reposilite);
+            var process = process_builder.start();
+
+            // wait for full startup
+            Thread.sleep(4000);
+
+            // verify the version doesn't exist
+            assertThrows(FileUtilsErrorException.class, () -> FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp")));
+            assertThrows(FileUtilsErrorException.class, () -> FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp/0.0.1")));
+
+            // create a first publication
+            var create_operation1 = new CreateBlankOperation()
+                .workDirectory(tmp1)
+                .packageName("test.pkg")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation1.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation1.project())
+                .execute();
+
+            var jar_operation1 = new JarOperation()
+                .fromProject(create_operation1.project());
+            jar_operation1.execute();
+
+            var publish_operation1 = new PublishOperation()
+                .fromProject(create_operation1.project())
+                .repositories(new Repository("http://localhost:8081/releases", "manager", "passwd"));
+            publish_operation1.execute();
+
+            var dir_json1 = new JSONObject(FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp")));
+            assertEquals("myapp", dir_json1.get("name"));
+            var dir_files_json1 = dir_json1.getJSONArray("files");
+            assertEquals(6, dir_files_json1.length());
+            assertEquals("0.0.1", dir_files_json1.getJSONObject(0).get("name"));
+            assertEquals("maven-metadata.xml.md5", dir_files_json1.getJSONObject(1).get("name"));
+            assertEquals("maven-metadata.xml.sha1", dir_files_json1.getJSONObject(2).get("name"));
+            assertEquals("maven-metadata.xml.sha256", dir_files_json1.getJSONObject(3).get("name"));
+            assertEquals("maven-metadata.xml.sha512", dir_files_json1.getJSONObject(4).get("name"));
+            assertEquals("maven-metadata.xml", dir_files_json1.getJSONObject(5).get("name"));
+
+            var maven_metadata1 = new Xml2MavenMetadata();
+            maven_metadata1.processXml(FileUtils.readString(new URL("http://localhost:8081/releases/test/pkg/myapp/maven-metadata.xml")));
+            assertEquals(create_operation1.project().version(), maven_metadata1.getLatest());
+            assertEquals(create_operation1.project().version(), maven_metadata1.getRelease());
+            assertEquals(VersionNumber.UNKNOWN, maven_metadata1.getSnapshot());
+            assertNull(maven_metadata1.getSnapshotTimestamp());
+            assertNull(maven_metadata1.getSnapshotBuildNumber());
+            assertEquals(1, maven_metadata1.getVersions().size());
+            assertTrue(maven_metadata1.getVersions().contains(create_operation1.project().version()));
+
+            var version_json1 = new JSONObject(FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp/0.0.1")));
+            assertEquals("0.0.1", version_json1.get("name"));
+            var version_files_json1 = version_json1.getJSONArray("files");
+            assertEquals(10, version_files_json1.length());
+            assertEquals("myapp-0.0.1.jar.md5", version_files_json1.getJSONObject(0).get("name"));
+            assertEquals("myapp-0.0.1.jar.sha1", version_files_json1.getJSONObject(1).get("name"));
+            assertEquals("myapp-0.0.1.jar.sha256", version_files_json1.getJSONObject(2).get("name"));
+            assertEquals("myapp-0.0.1.jar.sha512", version_files_json1.getJSONObject(3).get("name"));
+            assertEquals("myapp-0.0.1.jar", version_files_json1.getJSONObject(4).get("name"));
+            assertEquals("myapp-0.0.1.pom.md5", version_files_json1.getJSONObject(5).get("name"));
+            assertEquals("myapp-0.0.1.pom.sha1", version_files_json1.getJSONObject(6).get("name"));
+            assertEquals("myapp-0.0.1.pom.sha256", version_files_json1.getJSONObject(7).get("name"));
+            assertEquals("myapp-0.0.1.pom.sha512", version_files_json1.getJSONObject(8).get("name"));
+            assertEquals("myapp-0.0.1.pom", version_files_json1.getJSONObject(9).get("name"));
+
+            // created an updated publication
+            var create_operation2 = new CreateBlankOperation() {
+                protected Project createProjectBlueprint() {
+                    return new BlankProjectBlueprint(new File(workDirectory(), projectName()), packageName(), projectName(), new VersionNumber(1, 0, 0));
+                }
+            }
+                .workDirectory(tmp2)
+                .packageName("test.pkg")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation2.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation2.project())
+                .execute();
+
+            var jar_operation2 = new JarOperation()
+                .fromProject(create_operation2.project());
+            jar_operation2.execute();
+
+            var publish_operation2 = new PublishOperation()
+                .fromProject(create_operation2.project())
+                .repositories(new Repository("http://localhost:8081/releases", "manager", "passwd"));
+            publish_operation2.execute();
+
+            var dir_json2 = new JSONObject(FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp")));
+            assertEquals("myapp", dir_json2.get("name"));
+            var dir_files_json2 = dir_json2.getJSONArray("files");
+            assertEquals(7, dir_files_json2.length());
+            assertEquals("0.0.1", dir_files_json2.getJSONObject(0).get("name"));
+            assertEquals("1.0.0", dir_files_json2.getJSONObject(1).get("name"));
+            assertEquals("maven-metadata.xml.md5", dir_files_json2.getJSONObject(2).get("name"));
+            assertEquals("maven-metadata.xml.sha1", dir_files_json2.getJSONObject(3).get("name"));
+            assertEquals("maven-metadata.xml.sha256", dir_files_json2.getJSONObject(4).get("name"));
+            assertEquals("maven-metadata.xml.sha512", dir_files_json2.getJSONObject(5).get("name"));
+            assertEquals("maven-metadata.xml", dir_files_json2.getJSONObject(6).get("name"));
+
+            var maven_metadata2 = new Xml2MavenMetadata();
+            maven_metadata2.processXml(FileUtils.readString(new URL("http://localhost:8081/releases/test/pkg/myapp/maven-metadata.xml")));
+            assertEquals(create_operation2.project().version(), maven_metadata2.getLatest());
+            assertEquals(create_operation2.project().version(), maven_metadata2.getRelease());
+            assertEquals(VersionNumber.UNKNOWN, maven_metadata2.getSnapshot());
+            assertNull(maven_metadata2.getSnapshotTimestamp());
+            assertNull(maven_metadata2.getSnapshotBuildNumber());
+            assertEquals(2, maven_metadata2.getVersions().size());
+            assertTrue(maven_metadata2.getVersions().contains(create_operation1.project().version()));
+            assertTrue(maven_metadata2.getVersions().contains(create_operation2.project().version()));
+
+            var version_json1b = new JSONObject(FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp/0.0.1")));
+            assertEquals("0.0.1", version_json1b.get("name"));
+            var version_files_json1b = version_json1b.getJSONArray("files");
+            assertEquals(10, version_files_json1b.length());
+            assertEquals("myapp-0.0.1.jar.md5", version_files_json1b.getJSONObject(0).get("name"));
+            assertEquals("myapp-0.0.1.jar.sha1", version_files_json1b.getJSONObject(1).get("name"));
+            assertEquals("myapp-0.0.1.jar.sha256", version_files_json1b.getJSONObject(2).get("name"));
+            assertEquals("myapp-0.0.1.jar.sha512", version_files_json1b.getJSONObject(3).get("name"));
+            assertEquals("myapp-0.0.1.jar", version_files_json1b.getJSONObject(4).get("name"));
+            assertEquals("myapp-0.0.1.pom.md5", version_files_json1b.getJSONObject(5).get("name"));
+            assertEquals("myapp-0.0.1.pom.sha1", version_files_json1b.getJSONObject(6).get("name"));
+            assertEquals("myapp-0.0.1.pom.sha256", version_files_json1b.getJSONObject(7).get("name"));
+            assertEquals("myapp-0.0.1.pom.sha512", version_files_json1b.getJSONObject(8).get("name"));
+            assertEquals("myapp-0.0.1.pom", version_files_json1b.getJSONObject(9).get("name"));
+
+            var version_json2 = new JSONObject(FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp/1.0.0")));
+            assertEquals("1.0.0", version_json2.get("name"));
+            var version_files_json2 = version_json2.getJSONArray("files");
+            assertEquals(10, version_files_json2.length());
+            assertEquals("myapp-1.0.0.jar.md5", version_files_json2.getJSONObject(0).get("name"));
+            assertEquals("myapp-1.0.0.jar.sha1", version_files_json2.getJSONObject(1).get("name"));
+            assertEquals("myapp-1.0.0.jar.sha256", version_files_json2.getJSONObject(2).get("name"));
+            assertEquals("myapp-1.0.0.jar.sha512", version_files_json2.getJSONObject(3).get("name"));
+            assertEquals("myapp-1.0.0.jar", version_files_json2.getJSONObject(4).get("name"));
+            assertEquals("myapp-1.0.0.pom.md5", version_files_json2.getJSONObject(5).get("name"));
+            assertEquals("myapp-1.0.0.pom.sha1", version_files_json2.getJSONObject(6).get("name"));
+            assertEquals("myapp-1.0.0.pom.sha256", version_files_json2.getJSONObject(7).get("name"));
+            assertEquals("myapp-1.0.0.pom.sha512", version_files_json2.getJSONObject(8).get("name"));
+            assertEquals("myapp-1.0.0.pom", version_files_json2.getJSONObject(9).get("name"));
+
+            process.destroy();
+        } finally {
+            FileUtils.deleteDirectory(tmp_reposilite);
+            FileUtils.deleteDirectory(tmp2);
+            FileUtils.deleteDirectory(tmp1);
+        }
+    }
+
+    @Test
+    void testPublishReleaseLocal()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        var tmp_local = Files.createTempDirectory("test").toFile();
+        try {
+            // create a first publication
+            var create_operation1 = new CreateBlankOperation()
+                .workDirectory(tmp1)
+                .packageName("test.pkg")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation1.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation1.project())
+                .execute();
+
+            var jar_operation1 = new JarOperation()
+                .fromProject(create_operation1.project());
+            jar_operation1.execute();
+
+            var publish_operation1 = new PublishOperation()
+                .fromProject(create_operation1.project())
+                .repositories(new Repository(tmp_local.getAbsolutePath()));
+            publish_operation1.execute();
+
+            assertEquals("""
+                /test
+                /test/pkg
+                /test/pkg/myapp
+                /test/pkg/myapp/0.0.1
+                /test/pkg/myapp/0.0.1/myapp-0.0.1.jar
+                /test/pkg/myapp/0.0.1/myapp-0.0.1.pom
+                /test/pkg/myapp/maven-metadata-local.xml""", FileUtils.generateDirectoryListing(tmp_local));
+
+            var maven_metadata1 = new Xml2MavenMetadata();
+            maven_metadata1.processXml(FileUtils.readString(Path.of(tmp_local.getAbsolutePath(), "test", "pkg", "myapp", "maven-metadata-local.xml").toFile()));
+            assertEquals(create_operation1.project().version(), maven_metadata1.getLatest());
+            assertEquals(create_operation1.project().version(), maven_metadata1.getRelease());
+            assertEquals(VersionNumber.UNKNOWN, maven_metadata1.getSnapshot());
+            assertNull(maven_metadata1.getSnapshotTimestamp());
+            assertNull(maven_metadata1.getSnapshotBuildNumber());
+            assertEquals(1, maven_metadata1.getVersions().size());
+            assertTrue(maven_metadata1.getVersions().contains(create_operation1.project().version()));
+
+            // created an updated publication
+            var create_operation2 = new CreateBlankOperation() {
+                protected Project createProjectBlueprint() {
+                    return new BlankProjectBlueprint(new File(workDirectory(), projectName()), packageName(), projectName(), new VersionNumber(1, 0, 0));
+                }
+            }
+                .workDirectory(tmp2)
+                .packageName("test.pkg")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation2.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation2.project())
+                .execute();
+
+            var jar_operation2 = new JarOperation()
+                .fromProject(create_operation2.project());
+            jar_operation2.execute();
+
+            var publish_operation2 = new PublishOperation()
+                .fromProject(create_operation2.project())
+                .repositories(new Repository(tmp_local.getAbsolutePath()));
+            publish_operation2.execute();
+
+            assertEquals("""
+                /test
+                /test/pkg
+                /test/pkg/myapp
+                /test/pkg/myapp/0.0.1
+                /test/pkg/myapp/0.0.1/myapp-0.0.1.jar
+                /test/pkg/myapp/0.0.1/myapp-0.0.1.pom
+                /test/pkg/myapp/1.0.0
+                /test/pkg/myapp/1.0.0/myapp-1.0.0.jar
+                /test/pkg/myapp/1.0.0/myapp-1.0.0.pom
+                /test/pkg/myapp/maven-metadata-local.xml""", FileUtils.generateDirectoryListing(tmp_local));
+
+            var maven_metadata2 = new Xml2MavenMetadata();
+            maven_metadata2.processXml(FileUtils.readString(Path.of(tmp_local.getAbsolutePath(), "test", "pkg", "myapp", "maven-metadata-local.xml").toFile()));
+            assertEquals(create_operation2.project().version(), maven_metadata2.getLatest());
+            assertEquals(create_operation2.project().version(), maven_metadata2.getRelease());
+            assertEquals(VersionNumber.UNKNOWN, maven_metadata2.getSnapshot());
+            assertNull(maven_metadata2.getSnapshotTimestamp());
+            assertNull(maven_metadata2.getSnapshotBuildNumber());
+            assertEquals(2, maven_metadata2.getVersions().size());
+            assertTrue(maven_metadata2.getVersions().contains(create_operation1.project().version()));
+            assertTrue(maven_metadata2.getVersions().contains(create_operation2.project().version()));
+        } finally {
+            FileUtils.deleteDirectory(tmp_local);
+            FileUtils.deleteDirectory(tmp2);
+            FileUtils.deleteDirectory(tmp1);
+        }
+    }
+
+    @Test
+    void testPublishSnapshot()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        var tmp_reposilite = Files.createTempDirectory("test").toFile();
+        try {
+            var process_builder = new ProcessBuilder(
+                "java", "-jar", reposiliteJar_.getAbsolutePath(),
+                "-wd", tmp_reposilite.getAbsolutePath(),
+                "-p", "8081",
+                "--token", "manager:passwd");
+            process_builder.directory(tmp_reposilite);
+            var process = process_builder.start();
+
+            // wait for full startup
+            Thread.sleep(4000);
+
+            // verify the version doesn't exist
+            assertThrows(FileUtilsErrorException.class, () -> FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp")));
+            assertThrows(FileUtilsErrorException.class, () -> FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp/1.2.3-SNAPSHOT")));
+
+            // create a first publication
+            var create_operation1 = new CreateBlankOperation() {
+                protected Project createProjectBlueprint() {
+                    return new BlankProjectBlueprint(new File(workDirectory(), projectName()), packageName(), projectName(), new VersionNumber(1, 2, 3, "SNAPSHOT"));
+                }
+            }
+                .workDirectory(tmp1)
+                .packageName("test.pkg")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation1.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation1.project())
+                .execute();
+
+            var jar_operation1 = new JarOperation()
+                .fromProject(create_operation1.project());
+            jar_operation1.execute();
+
+            var publish_operation1 = new PublishOperation()
+                .fromProject(create_operation1.project())
+                .moment(ZonedDateTime.of(2023, 3, 29, 18, 54, 32, 909, ZoneId.of("America/New_York")))
+                .repositories(new Repository("http://localhost:8081/releases", "manager", "passwd"));
+            publish_operation1.execute();
+
+            var dir_json1 = new JSONObject(FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp")));
+            assertEquals("myapp", dir_json1.get("name"));
+            var dir_files_json1 = dir_json1.getJSONArray("files");
+            assertEquals(6, dir_files_json1.length());
+            assertEquals("1.2.3-SNAPSHOT", dir_files_json1.getJSONObject(0).get("name"));
+            assertEquals("maven-metadata.xml.md5", dir_files_json1.getJSONObject(1).get("name"));
+            assertEquals("maven-metadata.xml.sha1", dir_files_json1.getJSONObject(2).get("name"));
+            assertEquals("maven-metadata.xml.sha256", dir_files_json1.getJSONObject(3).get("name"));
+            assertEquals("maven-metadata.xml.sha512", dir_files_json1.getJSONObject(4).get("name"));
+            assertEquals("maven-metadata.xml", dir_files_json1.getJSONObject(5).get("name"));
+
+            var maven_metadata1 = new Xml2MavenMetadata();
+            maven_metadata1.processXml(FileUtils.readString(new URL("http://localhost:8081/releases/test/pkg/myapp/maven-metadata.xml")));
+            assertEquals(create_operation1.project().version(), maven_metadata1.getLatest());
+            assertEquals(create_operation1.project().version(), maven_metadata1.getRelease());
+            assertEquals(VersionNumber.UNKNOWN, maven_metadata1.getSnapshot());
+            assertNull(maven_metadata1.getSnapshotTimestamp());
+            assertNull(maven_metadata1.getSnapshotBuildNumber());
+            assertEquals(1, maven_metadata1.getVersions().size());
+            assertTrue(maven_metadata1.getVersions().contains(create_operation1.project().version()));
+
+            var version_json1 = new JSONObject(FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp/1.2.3-SNAPSHOT")));
+            assertEquals("1.2.3-SNAPSHOT", version_json1.get("name"));
+            var version_files_json1 = version_json1.getJSONArray("files");
+            assertEquals(15, version_files_json1.length());
+            assertEquals("maven-metadata.xml.md5", version_files_json1.getJSONObject(0).get("name"));
+            assertEquals("maven-metadata.xml.sha1", version_files_json1.getJSONObject(1).get("name"));
+            assertEquals("maven-metadata.xml.sha256", version_files_json1.getJSONObject(2).get("name"));
+            assertEquals("maven-metadata.xml.sha512", version_files_json1.getJSONObject(3).get("name"));
+            assertEquals("maven-metadata.xml", version_files_json1.getJSONObject(4).get("name"));
+            assertEquals("myapp-1.2.3-20230329.225432-1.jar.md5", version_files_json1.getJSONObject(5).get("name"));
+            assertEquals("myapp-1.2.3-20230329.225432-1.jar.sha1", version_files_json1.getJSONObject(6).get("name"));
+            assertEquals("myapp-1.2.3-20230329.225432-1.jar.sha256", version_files_json1.getJSONObject(7).get("name"));
+            assertEquals("myapp-1.2.3-20230329.225432-1.jar.sha512", version_files_json1.getJSONObject(8).get("name"));
+            assertEquals("myapp-1.2.3-20230329.225432-1.jar", version_files_json1.getJSONObject(9).get("name"));
+            assertEquals("myapp-1.2.3-20230329.225432-1.pom.md5", version_files_json1.getJSONObject(10).get("name"));
+            assertEquals("myapp-1.2.3-20230329.225432-1.pom.sha1", version_files_json1.getJSONObject(11).get("name"));
+            assertEquals("myapp-1.2.3-20230329.225432-1.pom.sha256", version_files_json1.getJSONObject(12).get("name"));
+            assertEquals("myapp-1.2.3-20230329.225432-1.pom.sha512", version_files_json1.getJSONObject(13).get("name"));
+            assertEquals("myapp-1.2.3-20230329.225432-1.pom", version_files_json1.getJSONObject(14).get("name"));
+
+            var maven_snapshot_metadata1 = new Xml2MavenMetadata();
+            maven_snapshot_metadata1.processXml(FileUtils.readString(new URL("http://localhost:8081/releases/test/pkg/myapp/1.2.3-SNAPSHOT/maven-metadata.xml")));
+            assertEquals(create_operation1.project().version(), maven_snapshot_metadata1.getLatest());
+            assertEquals(VersionNumber.UNKNOWN, maven_snapshot_metadata1.getRelease());
+            assertEquals(new VersionNumber(1, 2, 3, "20230329.225432-1"), maven_snapshot_metadata1.getSnapshot());
+            assertEquals("20230329.225432", maven_snapshot_metadata1.getSnapshotTimestamp());
+            assertEquals(1, maven_snapshot_metadata1.getSnapshotBuildNumber());
+            assertEquals(1, maven_snapshot_metadata1.getVersions().size());
+            assertTrue(maven_snapshot_metadata1.getVersions().contains(create_operation1.project().version()));
+
+            // created an updated publication
+            var create_operation2 = new CreateBlankOperation() {
+                protected Project createProjectBlueprint() {
+                    return new BlankProjectBlueprint(new File(workDirectory(), projectName()), packageName(), projectName(), new VersionNumber(1, 2, 3, "SNAPSHOT"));
+                }
+            }
+                .workDirectory(tmp2)
+                .packageName("test.pkg")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation2.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation2.project())
+                .execute();
+
+            var jar_operation2 = new JarOperation()
+                .fromProject(create_operation2.project());
+            jar_operation2.execute();
+
+            var publish_operation2 = new PublishOperation()
+                .fromProject(create_operation2.project())
+                .moment(ZonedDateTime.of(2023, 3, 30, 13, 17, 29, 89, ZoneId.of("America/New_York")))
+                .repositories(new Repository("http://localhost:8081/releases", "manager", "passwd"));
+            publish_operation2.execute();
+
+            var dir_json2 = new JSONObject(FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp")));
+            assertEquals("myapp", dir_json2.get("name"));
+            var dir_files_json2 = dir_json2.getJSONArray("files");
+            assertEquals(6, dir_files_json2.length());
+            assertEquals("1.2.3-SNAPSHOT", dir_files_json2.getJSONObject(0).get("name"));
+            assertEquals("maven-metadata.xml.md5", dir_files_json2.getJSONObject(1).get("name"));
+            assertEquals("maven-metadata.xml.sha1", dir_files_json2.getJSONObject(2).get("name"));
+            assertEquals("maven-metadata.xml.sha256", dir_files_json2.getJSONObject(3).get("name"));
+            assertEquals("maven-metadata.xml.sha512", dir_files_json2.getJSONObject(4).get("name"));
+            assertEquals("maven-metadata.xml", dir_files_json2.getJSONObject(5).get("name"));
+
+            var maven_metadata2 = new Xml2MavenMetadata();
+            maven_metadata2.processXml(FileUtils.readString(new URL("http://localhost:8081/releases/test/pkg/myapp/maven-metadata.xml")));
+            assertEquals(create_operation2.project().version(), maven_metadata2.getLatest());
+            assertEquals(create_operation2.project().version(), maven_metadata2.getRelease());
+            assertEquals(VersionNumber.UNKNOWN, maven_metadata2.getSnapshot());
+            assertNull(maven_metadata2.getSnapshotTimestamp());
+            assertNull(maven_metadata2.getSnapshotBuildNumber());
+            assertEquals(1, maven_metadata2.getVersions().size());
+            assertTrue(maven_metadata2.getVersions().contains(create_operation1.project().version()));
+            assertTrue(maven_metadata2.getVersions().contains(create_operation2.project().version()));
+
+            var version_json2 = new JSONObject(FileUtils.readString(new URL("http://localhost:8081/api/maven/details/releases/test/pkg/myapp/1.2.3-SNAPSHOT")));
+            assertEquals("1.2.3-SNAPSHOT", version_json2.get("name"));
+            var version_files_json2 = version_json2.getJSONArray("files");
+            assertEquals(15, version_files_json2.length());
+            assertEquals("maven-metadata.xml.md5", version_files_json2.getJSONObject(0).get("name"));
+            assertEquals("maven-metadata.xml.sha1", version_files_json2.getJSONObject(1).get("name"));
+            assertEquals("maven-metadata.xml.sha256", version_files_json2.getJSONObject(2).get("name"));
+            assertEquals("maven-metadata.xml.sha512", version_files_json2.getJSONObject(3).get("name"));
+            assertEquals("maven-metadata.xml", version_files_json2.getJSONObject(4).get("name"));
+            assertEquals("myapp-1.2.3-20230330.171729-2.jar.md5", version_files_json2.getJSONObject(5).get("name"));
+            assertEquals("myapp-1.2.3-20230330.171729-2.jar.sha1", version_files_json2.getJSONObject(6).get("name"));
+            assertEquals("myapp-1.2.3-20230330.171729-2.jar.sha256", version_files_json2.getJSONObject(7).get("name"));
+            assertEquals("myapp-1.2.3-20230330.171729-2.jar.sha512", version_files_json2.getJSONObject(8).get("name"));
+            assertEquals("myapp-1.2.3-20230330.171729-2.jar", version_files_json2.getJSONObject(9).get("name"));
+            assertEquals("myapp-1.2.3-20230330.171729-2.pom.md5", version_files_json2.getJSONObject(10).get("name"));
+            assertEquals("myapp-1.2.3-20230330.171729-2.pom.sha1", version_files_json2.getJSONObject(11).get("name"));
+            assertEquals("myapp-1.2.3-20230330.171729-2.pom.sha256", version_files_json2.getJSONObject(12).get("name"));
+            assertEquals("myapp-1.2.3-20230330.171729-2.pom.sha512", version_files_json2.getJSONObject(13).get("name"));
+            assertEquals("myapp-1.2.3-20230330.171729-2.pom", version_files_json2.getJSONObject(14).get("name"));
+
+            var maven_snapshot_metadata2 = new Xml2MavenMetadata();
+            maven_snapshot_metadata2.processXml(FileUtils.readString(new URL("http://localhost:8081/releases/test/pkg/myapp/1.2.3-SNAPSHOT/maven-metadata.xml")));
+            assertEquals(create_operation2.project().version(), maven_snapshot_metadata2.getLatest());
+            assertEquals(VersionNumber.UNKNOWN, maven_snapshot_metadata2.getRelease());
+            assertEquals(new VersionNumber(1, 2, 3, "20230330.171729-2"), maven_snapshot_metadata2.getSnapshot());
+            assertEquals("20230330.171729", maven_snapshot_metadata2.getSnapshotTimestamp());
+            assertEquals(2, maven_snapshot_metadata2.getSnapshotBuildNumber());
+            assertEquals(1, maven_snapshot_metadata2.getVersions().size());
+            assertTrue(maven_snapshot_metadata2.getVersions().contains(create_operation2.project().version()));
+
+            process.destroy();
+        } finally {
+            FileUtils.deleteDirectory(tmp_reposilite);
+            FileUtils.deleteDirectory(tmp2);
+            FileUtils.deleteDirectory(tmp1);
+        }
+    }
+
+    @Test
+    void testPublishSnapshotLocal()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        var tmp_local = Files.createTempDirectory("test").toFile();
+        try {
+            // create a first publication
+            var create_operation1 = new CreateBlankOperation() {
+                protected Project createProjectBlueprint() {
+                    return new BlankProjectBlueprint(new File(workDirectory(), projectName()), packageName(), projectName(), new VersionNumber(1, 2, 3, "SNAPSHOT"));
+                }
+            }
+                .workDirectory(tmp1)
+                .packageName("test.pkg")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation1.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation1.project())
+                .execute();
+
+            var jar_operation1 = new JarOperation()
+                .fromProject(create_operation1.project());
+            jar_operation1.execute();
+
+            var publish_operation1 = new PublishOperation()
+                .fromProject(create_operation1.project())
+                .moment(ZonedDateTime.of(2023, 3, 29, 18, 54, 32, 909, ZoneId.of("America/New_York")))
+                .repositories(new Repository(tmp_local.getAbsolutePath()));
+            publish_operation1.execute();
+
+            assertEquals("""
+                /test
+                /test/pkg
+                /test/pkg/myapp
+                /test/pkg/myapp/1.2.3-SNAPSHOT
+                /test/pkg/myapp/1.2.3-SNAPSHOT/maven-metadata-local.xml
+                /test/pkg/myapp/1.2.3-SNAPSHOT/myapp-1.2.3-SNAPSHOT.jar
+                /test/pkg/myapp/1.2.3-SNAPSHOT/myapp-1.2.3-SNAPSHOT.pom
+                /test/pkg/myapp/maven-metadata-local.xml""", FileUtils.generateDirectoryListing(tmp_local));
+
+            var maven_metadata1 = new Xml2MavenMetadata();
+            maven_metadata1.processXml(FileUtils.readString(Path.of(tmp_local.getAbsolutePath(), "test", "pkg", "myapp", "maven-metadata-local.xml").toFile()));
+            assertEquals(create_operation1.project().version(), maven_metadata1.getLatest());
+            assertEquals(create_operation1.project().version(), maven_metadata1.getRelease());
+            assertEquals(VersionNumber.UNKNOWN, maven_metadata1.getSnapshot());
+            assertNull(maven_metadata1.getSnapshotTimestamp());
+            assertNull(maven_metadata1.getSnapshotBuildNumber());
+            assertEquals(1, maven_metadata1.getVersions().size());
+            assertTrue(maven_metadata1.getVersions().contains(create_operation1.project().version()));
+
+            var maven_snapshot_metadata1 = new Xml2MavenMetadata();
+            maven_snapshot_metadata1.processXml(FileUtils.readString(Path.of(tmp_local.getAbsolutePath(), "test", "pkg", "myapp", "1.2.3-SNAPSHOT", "maven-metadata-local.xml").toFile()));
+            assertEquals(create_operation1.project().version(), maven_snapshot_metadata1.getLatest());
+            assertEquals(VersionNumber.UNKNOWN, maven_snapshot_metadata1.getRelease());
+            assertEquals(new VersionNumber(1, 2, 3, "SNAPSHOT"), maven_snapshot_metadata1.getSnapshot());
+            assertNull(maven_snapshot_metadata1.getSnapshotTimestamp());
+            assertNull(maven_snapshot_metadata1.getSnapshotBuildNumber());
+            assertEquals(1, maven_snapshot_metadata1.getVersions().size());
+            assertTrue(maven_snapshot_metadata1.getVersions().contains(create_operation1.project().version()));
+
+            // created an updated publication
+            var create_operation2 = new CreateBlankOperation() {
+                protected Project createProjectBlueprint() {
+                    return new BlankProjectBlueprint(new File(workDirectory(), projectName()), packageName(), projectName(), new VersionNumber(1, 2, 3, "SNAPSHOT"));
+                }
+            }
+                .workDirectory(tmp2)
+                .packageName("test.pkg")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation2.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation2.project())
+                .execute();
+
+            var jar_operation2 = new JarOperation()
+                .fromProject(create_operation2.project());
+            jar_operation2.execute();
+
+            var publish_operation2 = new PublishOperation()
+                .fromProject(create_operation2.project())
+                .moment(ZonedDateTime.of(2023, 3, 30, 13, 17, 29, 89, ZoneId.of("America/New_York")))
+                .repositories(new Repository(tmp_local.getAbsolutePath()));
+            publish_operation2.execute();
+
+            assertEquals("""
+                /test
+                /test/pkg
+                /test/pkg/myapp
+                /test/pkg/myapp/1.2.3-SNAPSHOT
+                /test/pkg/myapp/1.2.3-SNAPSHOT/maven-metadata-local.xml
+                /test/pkg/myapp/1.2.3-SNAPSHOT/myapp-1.2.3-SNAPSHOT.jar
+                /test/pkg/myapp/1.2.3-SNAPSHOT/myapp-1.2.3-SNAPSHOT.pom
+                /test/pkg/myapp/maven-metadata-local.xml""", FileUtils.generateDirectoryListing(tmp_local));
+
+            var maven_metadata2 = new Xml2MavenMetadata();
+            maven_metadata2.processXml(FileUtils.readString(Path.of(tmp_local.getAbsolutePath(), "test", "pkg", "myapp", "maven-metadata-local.xml").toFile()));
+            assertEquals(create_operation2.project().version(), maven_metadata2.getLatest());
+            assertEquals(create_operation2.project().version(), maven_metadata2.getRelease());
+            assertEquals(VersionNumber.UNKNOWN, maven_metadata2.getSnapshot());
+            assertNull(maven_metadata2.getSnapshotTimestamp());
+            assertNull(maven_metadata2.getSnapshotBuildNumber());
+            assertEquals(1, maven_metadata2.getVersions().size());
+            assertTrue(maven_metadata2.getVersions().contains(create_operation1.project().version()));
+            assertTrue(maven_metadata2.getVersions().contains(create_operation2.project().version()));
+
+            var maven_snapshot_metadata2 = new Xml2MavenMetadata();
+            maven_snapshot_metadata2.processXml(FileUtils.readString(Path.of(tmp_local.getAbsolutePath(), "test", "pkg", "myapp", "1.2.3-SNAPSHOT", "maven-metadata-local.xml").toFile()));
+            assertEquals(create_operation2.project().version(), maven_snapshot_metadata2.getLatest());
+            assertEquals(VersionNumber.UNKNOWN, maven_snapshot_metadata2.getRelease());
+            assertEquals(new VersionNumber(1, 2, 3, "SNAPSHOT"), maven_snapshot_metadata2.getSnapshot());
+            assertNull(maven_snapshot_metadata2.getSnapshotTimestamp());
+            assertNull(maven_snapshot_metadata2.getSnapshotBuildNumber());
+            assertEquals(1, maven_snapshot_metadata2.getVersions().size());
+            assertTrue(maven_snapshot_metadata2.getVersions().contains(create_operation2.project().version()));
+        } finally {
+            FileUtils.deleteDirectory(tmp_local);
+            FileUtils.deleteDirectory(tmp2);
+            FileUtils.deleteDirectory(tmp1);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestPurgeOperation.java b/src/test/java/rife/bld/operations/TestPurgeOperation.java
new file mode 100644
index 0000000..45a23af
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestPurgeOperation.java
@@ -0,0 +1,541 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.WebProject;
+import rife.bld.dependencies.*;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestPurgeOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new PurgeOperation();
+        assertTrue(operation.dependencies().isEmpty());
+        assertTrue(operation.repositories().isEmpty());
+        assertNull(operation.libCompileDirectory());
+        assertNull(operation.libRuntimeDirectory());
+        assertNull(operation.libStandaloneDirectory());
+        assertNull(operation.libTestDirectory());
+    }
+
+    @Test
+    void testPopulation() {
+        var repository1 = new Repository("repository1");
+        var repository2 = new Repository("repository2");
+        var dependency1 = new Dependency("group1", "artifact1");
+        var dependency2 = new Dependency("group2", "artifact2");
+        var dir1 = new File("dir1");
+        var dir2 = new File("dir2");
+        var dir3 = new File("dir3");
+        var dir4 = new File("dir4");
+
+        var operation1 = new PurgeOperation()
+            .repositories(List.of(repository1, repository2))
+            .libCompileDirectory(dir1)
+            .libRuntimeDirectory(dir2)
+            .libStandaloneDirectory(dir3)
+            .libTestDirectory(dir4);
+        var dependency_scopes = new DependencyScopes();
+        dependency_scopes.scope(Scope.compile).include(dependency1).include(dependency2);
+        operation1.dependencies(dependency_scopes);
+        assertTrue(operation1.repositories().contains(repository1));
+        assertTrue(operation1.repositories().contains(repository2));
+        assertTrue(operation1.dependencies().scope(Scope.compile).contains(dependency1));
+        assertTrue(operation1.dependencies().scope(Scope.compile).contains(dependency2));
+        assertEquals(dir1, operation1.libCompileDirectory());
+        assertEquals(dir2, operation1.libRuntimeDirectory());
+        assertEquals(dir3, operation1.libStandaloneDirectory());
+        assertEquals(dir4, operation1.libTestDirectory());
+
+        var operation2 = new PurgeOperation()
+            .libCompileDirectory(dir1)
+            .libRuntimeDirectory(dir2)
+            .libStandaloneDirectory(dir3)
+            .libTestDirectory(dir4);
+        operation2.repositories().add(repository1);
+        operation2.repositories().add(repository2);
+        operation2.dependencies().scope(Scope.compile).include(dependency1).include(dependency2);
+        operation2.dependencies(dependency_scopes);
+        assertTrue(operation2.repositories().contains(repository1));
+        assertTrue(operation2.repositories().contains(repository2));
+        assertTrue(operation2.dependencies().scope(Scope.compile).contains(dependency1));
+        assertTrue(operation2.dependencies().scope(Scope.compile).contains(dependency2));
+        assertEquals(dir1, operation2.libCompileDirectory());
+        assertEquals(dir2, operation2.libRuntimeDirectory());
+        assertEquals(dir3, operation2.libStandaloneDirectory());
+        assertEquals(dir4, operation2.libTestDirectory());
+
+        var operation3 = new PurgeOperation()
+            .repositories(repository1, repository2);
+        assertTrue(operation3.repositories().contains(repository1));
+        assertTrue(operation3.repositories().contains(repository2));
+    }
+
+    @Test
+    void testExecution()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var dir1 = new File(tmp, "dir1");
+            var dir2 = new File(tmp, "dir2");
+            var dir3 = new File(tmp, "dir3");
+            var dir4 = new File(tmp, "dir4");
+            dir1.mkdirs();
+            dir2.mkdirs();
+            dir3.mkdirs();
+            dir4.mkdirs();
+
+            var operation_download1 = new DownloadOperation()
+                .repositories(List.of(Repository.MAVEN_CENTRAL))
+                .libCompileDirectory(dir1)
+                .libRuntimeDirectory(dir2)
+                .libStandaloneDirectory(dir3)
+                .libTestDirectory(dir4);
+            operation_download1.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 1)));
+            operation_download1.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 3)));
+            operation_download1.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 0)));
+            operation_download1.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 0)));
+
+            operation_download1.execute();
+
+            var operation_download2 = new DownloadOperation()
+                .repositories(List.of(Repository.MAVEN_CENTRAL))
+                .libCompileDirectory(dir1)
+                .libRuntimeDirectory(dir2)
+                .libStandaloneDirectory(dir3)
+                .libTestDirectory(dir4);
+            operation_download2.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 12, 0)));
+            operation_download2.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 4)));
+            operation_download2.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 6)));
+            operation_download2.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 2, 1)));
+
+            operation_download2.execute();
+
+            assertEquals("""
+                    /dir1
+                    /dir1/commons-lang3-3.1.jar
+                    /dir1/commons-lang3-3.12.0.jar
+                    /dir2
+                    /dir2/commons-collections4-4.3.jar
+                    /dir2/commons-collections4-4.4.jar
+                    /dir3
+                    /dir3/slf4j-api-2.0.0.jar
+                    /dir3/slf4j-api-2.0.6.jar
+                    /dir3/slf4j-simple-2.0.0.jar
+                    /dir3/slf4j-simple-2.0.6.jar
+                    /dir4
+                    /dir4/commons-codec-1.13.jar
+                    /dir4/httpclient5-5.0.jar
+                    /dir4/httpclient5-5.2.1.jar
+                    /dir4/httpcore5-5.0.jar
+                    /dir4/httpcore5-5.2.jar
+                    /dir4/httpcore5-h2-5.0.jar
+                    /dir4/httpcore5-h2-5.2.jar
+                    /dir4/slf4j-api-1.7.25.jar
+                    /dir4/slf4j-api-1.7.36.jar""",
+                FileUtils.generateDirectoryListing(tmp));
+
+            var operation_purge = new PurgeOperation()
+                .repositories(List.of(Repository.MAVEN_CENTRAL))
+                .libCompileDirectory(dir1)
+                .libRuntimeDirectory(dir2)
+                .libStandaloneDirectory(dir3)
+                .libTestDirectory(dir4);
+            operation_purge.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 12, 0)));
+            operation_purge.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 4)));
+            operation_purge.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 6)));
+            operation_purge.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 2, 1)));
+
+            operation_purge.execute();
+
+            assertEquals("""
+                    /dir1
+                    /dir1/commons-lang3-3.12.0.jar
+                    /dir2
+                    /dir2/commons-collections4-4.4.jar
+                    /dir3
+                    /dir3/slf4j-api-2.0.6.jar
+                    /dir3/slf4j-simple-2.0.6.jar
+                    /dir4
+                    /dir4/httpclient5-5.2.1.jar
+                    /dir4/httpcore5-5.2.jar
+                    /dir4/httpcore5-h2-5.2.jar
+                    /dir4/slf4j-api-1.7.36.jar""",
+                FileUtils.generateDirectoryListing(tmp));
+
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testExecutionAdditionalSourcesJavadoc()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var dir1 = new File(tmp, "dir1");
+            var dir2 = new File(tmp, "dir2");
+            var dir3 = new File(tmp, "dir3");
+            var dir4 = new File(tmp, "dir4");
+            dir1.mkdirs();
+            dir2.mkdirs();
+            dir3.mkdirs();
+            dir4.mkdirs();
+
+            var operation_download1 = new DownloadOperation()
+                .repositories(List.of(Repository.MAVEN_CENTRAL))
+                .libCompileDirectory(dir1)
+                .libRuntimeDirectory(dir2)
+                .libStandaloneDirectory(dir3)
+                .libTestDirectory(dir4)
+                .downloadJavadoc(true)
+                .downloadSources(true);
+            operation_download1.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 1)));
+            operation_download1.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 3)));
+            operation_download1.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 0)));
+            operation_download1.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 0)));
+
+            operation_download1.execute();
+
+            var operation_download2 = new DownloadOperation()
+                .repositories(List.of(Repository.MAVEN_CENTRAL))
+                .libCompileDirectory(dir1)
+                .libRuntimeDirectory(dir2)
+                .libStandaloneDirectory(dir3)
+                .libTestDirectory(dir4)
+                .downloadJavadoc(true)
+                .downloadSources(true);
+            operation_download2.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 12, 0)));
+            operation_download2.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 4)));
+            operation_download2.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 6)));
+            operation_download2.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 2, 1)));
+
+            operation_download2.execute();
+
+            assertEquals("""
+                    /dir1
+                    /dir1/commons-lang3-3.1-javadoc.jar
+                    /dir1/commons-lang3-3.1-sources.jar
+                    /dir1/commons-lang3-3.1.jar
+                    /dir1/commons-lang3-3.12.0-javadoc.jar
+                    /dir1/commons-lang3-3.12.0-sources.jar
+                    /dir1/commons-lang3-3.12.0.jar
+                    /dir2
+                    /dir2/commons-collections4-4.3-javadoc.jar
+                    /dir2/commons-collections4-4.3-sources.jar
+                    /dir2/commons-collections4-4.3.jar
+                    /dir2/commons-collections4-4.4-javadoc.jar
+                    /dir2/commons-collections4-4.4-sources.jar
+                    /dir2/commons-collections4-4.4.jar
+                    /dir3
+                    /dir3/slf4j-api-2.0.0-javadoc.jar
+                    /dir3/slf4j-api-2.0.0-sources.jar
+                    /dir3/slf4j-api-2.0.0.jar
+                    /dir3/slf4j-api-2.0.6-javadoc.jar
+                    /dir3/slf4j-api-2.0.6-sources.jar
+                    /dir3/slf4j-api-2.0.6.jar
+                    /dir3/slf4j-simple-2.0.0-javadoc.jar
+                    /dir3/slf4j-simple-2.0.0-sources.jar
+                    /dir3/slf4j-simple-2.0.0.jar
+                    /dir3/slf4j-simple-2.0.6-javadoc.jar
+                    /dir3/slf4j-simple-2.0.6-sources.jar
+                    /dir3/slf4j-simple-2.0.6.jar
+                    /dir4
+                    /dir4/commons-codec-1.13-javadoc.jar
+                    /dir4/commons-codec-1.13-sources.jar
+                    /dir4/commons-codec-1.13.jar
+                    /dir4/httpclient5-5.0-javadoc.jar
+                    /dir4/httpclient5-5.0-sources.jar
+                    /dir4/httpclient5-5.0.jar
+                    /dir4/httpclient5-5.2.1-javadoc.jar
+                    /dir4/httpclient5-5.2.1-sources.jar
+                    /dir4/httpclient5-5.2.1.jar
+                    /dir4/httpcore5-5.0-javadoc.jar
+                    /dir4/httpcore5-5.0-sources.jar
+                    /dir4/httpcore5-5.0.jar
+                    /dir4/httpcore5-5.2-javadoc.jar
+                    /dir4/httpcore5-5.2-sources.jar
+                    /dir4/httpcore5-5.2.jar
+                    /dir4/httpcore5-h2-5.0-javadoc.jar
+                    /dir4/httpcore5-h2-5.0-sources.jar
+                    /dir4/httpcore5-h2-5.0.jar
+                    /dir4/httpcore5-h2-5.2-javadoc.jar
+                    /dir4/httpcore5-h2-5.2-sources.jar
+                    /dir4/httpcore5-h2-5.2.jar
+                    /dir4/slf4j-api-1.7.25-javadoc.jar
+                    /dir4/slf4j-api-1.7.25-sources.jar
+                    /dir4/slf4j-api-1.7.25.jar
+                    /dir4/slf4j-api-1.7.36-javadoc.jar
+                    /dir4/slf4j-api-1.7.36-sources.jar
+                    /dir4/slf4j-api-1.7.36.jar""",
+                FileUtils.generateDirectoryListing(tmp));
+
+            var operation_purge = new PurgeOperation()
+                .repositories(List.of(Repository.MAVEN_CENTRAL))
+                .libCompileDirectory(dir1)
+                .libRuntimeDirectory(dir2)
+                .libStandaloneDirectory(dir3)
+                .libTestDirectory(dir4)
+                .preserveSources(true)
+                .preserveJavadoc(true);
+            operation_purge.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 12, 0)));
+            operation_purge.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 4)));
+            operation_purge.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 6)));
+            operation_purge.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 2, 1)));
+
+            operation_purge.execute();
+
+            assertEquals("""
+                    /dir1
+                    /dir1/commons-lang3-3.12.0-javadoc.jar
+                    /dir1/commons-lang3-3.12.0-sources.jar
+                    /dir1/commons-lang3-3.12.0.jar
+                    /dir2
+                    /dir2/commons-collections4-4.4-javadoc.jar
+                    /dir2/commons-collections4-4.4-sources.jar
+                    /dir2/commons-collections4-4.4.jar
+                    /dir3
+                    /dir3/slf4j-api-2.0.6-javadoc.jar
+                    /dir3/slf4j-api-2.0.6-sources.jar
+                    /dir3/slf4j-api-2.0.6.jar
+                    /dir3/slf4j-simple-2.0.6-javadoc.jar
+                    /dir3/slf4j-simple-2.0.6-sources.jar
+                    /dir3/slf4j-simple-2.0.6.jar
+                    /dir4
+                    /dir4/httpclient5-5.2.1-javadoc.jar
+                    /dir4/httpclient5-5.2.1-sources.jar
+                    /dir4/httpclient5-5.2.1.jar
+                    /dir4/httpcore5-5.2-javadoc.jar
+                    /dir4/httpcore5-5.2-sources.jar
+                    /dir4/httpcore5-5.2.jar
+                    /dir4/httpcore5-h2-5.2-javadoc.jar
+                    /dir4/httpcore5-h2-5.2-sources.jar
+                    /dir4/httpcore5-h2-5.2.jar
+                    /dir4/slf4j-api-1.7.36-javadoc.jar
+                    /dir4/slf4j-api-1.7.36-sources.jar
+                    /dir4/slf4j-api-1.7.36.jar""",
+                FileUtils.generateDirectoryListing(tmp));
+
+            operation_purge
+                .preserveJavadoc(false).execute();
+
+            assertEquals("""
+                    /dir1
+                    /dir1/commons-lang3-3.12.0-sources.jar
+                    /dir1/commons-lang3-3.12.0.jar
+                    /dir2
+                    /dir2/commons-collections4-4.4-sources.jar
+                    /dir2/commons-collections4-4.4.jar
+                    /dir3
+                    /dir3/slf4j-api-2.0.6-sources.jar
+                    /dir3/slf4j-api-2.0.6.jar
+                    /dir3/slf4j-simple-2.0.6-sources.jar
+                    /dir3/slf4j-simple-2.0.6.jar
+                    /dir4
+                    /dir4/httpclient5-5.2.1-sources.jar
+                    /dir4/httpclient5-5.2.1.jar
+                    /dir4/httpcore5-5.2-sources.jar
+                    /dir4/httpcore5-5.2.jar
+                    /dir4/httpcore5-h2-5.2-sources.jar
+                    /dir4/httpcore5-h2-5.2.jar
+                    /dir4/slf4j-api-1.7.36-sources.jar
+                    /dir4/slf4j-api-1.7.36.jar""",
+                FileUtils.generateDirectoryListing(tmp));
+
+            operation_purge
+                .preserveSources(false).execute();
+
+            assertEquals("""
+                    /dir1
+                    /dir1/commons-lang3-3.12.0.jar
+                    /dir2
+                    /dir2/commons-collections4-4.4.jar
+                    /dir3
+                    /dir3/slf4j-api-2.0.6.jar
+                    /dir3/slf4j-simple-2.0.6.jar
+                    /dir4
+                    /dir4/httpclient5-5.2.1.jar
+                    /dir4/httpcore5-5.2.jar
+                    /dir4/httpcore5-h2-5.2.jar
+                    /dir4/slf4j-api-1.7.36.jar""",
+                FileUtils.generateDirectoryListing(tmp));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    static class TestProject extends WebProject {
+        public TestProject(File tmp) {
+            workDirectory = tmp;
+            pkg = "test.pkg";
+            downloadSources = true;
+        }
+    }
+
+    @Test
+    void testFromProject()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var project1 = new TestProject(tmp);
+            project1.createProjectStructure();
+            project1.repositories().add(Repository.MAVEN_CENTRAL);
+            project1.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 1)));
+            project1.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 3)));
+            project1.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 0)));
+            project1.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 0)));
+
+            var project2 = new TestProject(tmp);
+            project2.createProjectStructure();
+            project2.repositories().add(Repository.MAVEN_CENTRAL);
+            project2.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 12, 0)));
+            project2.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 4)));
+            project2.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(2, 0, 6)));
+            project2.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 2, 1)));
+
+            new DownloadOperation()
+                .fromProject(project1)
+                .execute();
+            new DownloadOperation()
+                .fromProject(project2)
+                .execute();
+
+            assertEquals("""
+                    /lib
+                    /lib/bld
+                    /lib/compile
+                    /lib/compile/commons-lang3-3.1-sources.jar
+                    /lib/compile/commons-lang3-3.1.jar
+                    /lib/compile/commons-lang3-3.12.0-sources.jar
+                    /lib/compile/commons-lang3-3.12.0.jar
+                    /lib/runtime
+                    /lib/runtime/commons-collections4-4.3-sources.jar
+                    /lib/runtime/commons-collections4-4.3.jar
+                    /lib/runtime/commons-collections4-4.4-sources.jar
+                    /lib/runtime/commons-collections4-4.4.jar
+                    /lib/standalone
+                    /lib/standalone/slf4j-api-2.0.0-sources.jar
+                    /lib/standalone/slf4j-api-2.0.0.jar
+                    /lib/standalone/slf4j-api-2.0.6-sources.jar
+                    /lib/standalone/slf4j-api-2.0.6.jar
+                    /lib/standalone/slf4j-simple-2.0.0-sources.jar
+                    /lib/standalone/slf4j-simple-2.0.0.jar
+                    /lib/standalone/slf4j-simple-2.0.6-sources.jar
+                    /lib/standalone/slf4j-simple-2.0.6.jar
+                    /lib/test
+                    /lib/test/commons-codec-1.13-sources.jar
+                    /lib/test/commons-codec-1.13.jar
+                    /lib/test/httpclient5-5.0-sources.jar
+                    /lib/test/httpclient5-5.0.jar
+                    /lib/test/httpclient5-5.2.1-sources.jar
+                    /lib/test/httpclient5-5.2.1.jar
+                    /lib/test/httpcore5-5.0-sources.jar
+                    /lib/test/httpcore5-5.0.jar
+                    /lib/test/httpcore5-5.2-sources.jar
+                    /lib/test/httpcore5-5.2.jar
+                    /lib/test/httpcore5-h2-5.0-sources.jar
+                    /lib/test/httpcore5-h2-5.0.jar
+                    /lib/test/httpcore5-h2-5.2-sources.jar
+                    /lib/test/httpcore5-h2-5.2.jar
+                    /lib/test/slf4j-api-1.7.25-sources.jar
+                    /lib/test/slf4j-api-1.7.25.jar
+                    /lib/test/slf4j-api-1.7.36-sources.jar
+                    /lib/test/slf4j-api-1.7.36.jar
+                    /src
+                    /src/bld
+                    /src/bld/java
+                    /src/bld/resources
+                    /src/main
+                    /src/main/java
+                    /src/main/resources
+                    /src/main/resources/templates
+                    /src/test
+                    /src/test/java
+                    /src/test/resources""",
+                FileUtils.generateDirectoryListing(tmp));
+
+            new PurgeOperation()
+                .fromProject(project2)
+                .execute();
+
+            assertEquals("""
+                    /lib
+                    /lib/bld
+                    /lib/compile
+                    /lib/compile/commons-lang3-3.12.0-sources.jar
+                    /lib/compile/commons-lang3-3.12.0.jar
+                    /lib/runtime
+                    /lib/runtime/commons-collections4-4.4-sources.jar
+                    /lib/runtime/commons-collections4-4.4.jar
+                    /lib/standalone
+                    /lib/standalone/slf4j-api-2.0.6-sources.jar
+                    /lib/standalone/slf4j-api-2.0.6.jar
+                    /lib/standalone/slf4j-simple-2.0.6-sources.jar
+                    /lib/standalone/slf4j-simple-2.0.6.jar
+                    /lib/test
+                    /lib/test/httpclient5-5.2.1-sources.jar
+                    /lib/test/httpclient5-5.2.1.jar
+                    /lib/test/httpcore5-5.2-sources.jar
+                    /lib/test/httpcore5-5.2.jar
+                    /lib/test/httpcore5-h2-5.2-sources.jar
+                    /lib/test/httpcore5-h2-5.2.jar
+                    /lib/test/slf4j-api-1.7.36-sources.jar
+                    /lib/test/slf4j-api-1.7.36.jar
+                    /src
+                    /src/bld
+                    /src/bld/java
+                    /src/bld/resources
+                    /src/main
+                    /src/main/java
+                    /src/main/resources
+                    /src/main/resources/templates
+                    /src/test
+                    /src/test/java
+                    /src/test/resources""",
+                FileUtils.generateDirectoryListing(tmp));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestRunOperation.java b/src/test/java/rife/bld/operations/TestRunOperation.java
new file mode 100644
index 0000000..f213ff5
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestRunOperation.java
@@ -0,0 +1,187 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+import java.util.function.Function;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestRunOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new RunOperation();
+        assertNotNull(operation.workDirectory());
+        assertTrue(operation.workDirectory().exists());
+        assertTrue(operation.workDirectory().isDirectory());
+        assertTrue(operation.workDirectory().canWrite());
+        assertEquals("java", operation.javaTool());
+        assertTrue(operation.javaOptions().isEmpty());
+        assertTrue(operation.classpath().isEmpty());
+        assertNull(operation.mainClass());
+        assertTrue(operation.runOptions().isEmpty());
+        assertNull(operation.outputProcessor());
+        assertNull(operation.errorProcessor());
+        assertNull(operation.process());
+    }
+
+    @Test
+    void testPopulation()
+    throws Exception {
+        var work_directory = Files.createTempDirectory("test").toFile();
+        try {
+            var java_tool = "javatool";
+            var run_java_option1 = "runJavaOption1";
+            var run_java_option2 = "runJavaOption2";
+            var run_classpath1 = "runClasspath1";
+            var run_classpath2 = "runClasspath2";
+            var run_option1 = "runOption1";
+            var run_option2 = "runOption2";
+            var main_class = "mainClass";
+            Function<String, Boolean> run_output_consumer = (String) -> true;
+            Function<String, Boolean> run_error_consumer = (String) -> true;
+
+            var operation1 = new RunOperation();
+            operation1
+                .workDirectory(work_directory)
+                .javaTool(java_tool)
+                .javaOptions(List.of(run_java_option1, run_java_option2))
+                .classpath(List.of(run_classpath1, run_classpath2))
+                .mainClass(main_class)
+                .runOptions(List.of(run_option1, run_option2))
+                .outputProcessor(run_output_consumer)
+                .errorProcessor(run_error_consumer);
+
+            assertEquals(work_directory, operation1.workDirectory());
+            assertEquals(java_tool, operation1.javaTool());
+            assertTrue(operation1.javaOptions().contains(run_java_option1));
+            assertTrue(operation1.javaOptions().contains(run_java_option2));
+            assertTrue(operation1.classpath().contains(run_classpath1));
+            assertTrue(operation1.classpath().contains(run_classpath2));
+            assertEquals(main_class, operation1.mainClass());
+            assertTrue(operation1.runOptions().contains(run_option1));
+            assertTrue(operation1.runOptions().contains(run_option2));
+            assertSame(run_output_consumer, operation1.outputProcessor());
+            assertSame(run_error_consumer, operation1.errorProcessor());
+
+            var operation2 = new RunOperation();
+            operation2.workDirectory(work_directory);
+            operation2.javaTool(java_tool);
+            operation2.javaOptions().add(run_java_option1);
+            operation2.javaOptions().add(run_java_option2);
+            operation2.classpath().add(run_classpath1);
+            operation2.classpath().add(run_classpath2);
+            operation2.mainClass(main_class);
+            operation2.runOptions().add(run_option1);
+            operation2.runOptions().add(run_option2);
+            operation2.outputProcessor(run_output_consumer);
+            operation2.errorProcessor(run_error_consumer);
+
+            assertEquals(work_directory, operation2.workDirectory());
+            assertEquals(java_tool, operation2.javaTool());
+            assertTrue(operation2.javaOptions().contains(run_java_option1));
+            assertTrue(operation2.javaOptions().contains(run_java_option2));
+            assertTrue(operation2.classpath().contains(run_classpath1));
+            assertTrue(operation2.classpath().contains(run_classpath2));
+            assertEquals(main_class, operation2.mainClass());
+            assertTrue(operation2.runOptions().contains(run_option1));
+            assertTrue(operation2.runOptions().contains(run_option2));
+            assertSame(run_output_consumer, operation2.outputProcessor());
+            assertSame(run_error_consumer, operation2.errorProcessor());
+
+            var operation3 = new RunOperation();
+            operation3
+                .classpath(run_classpath1, run_classpath2)
+                .runOptions(run_option1, run_option2);
+
+            assertTrue(operation3.classpath().contains(run_classpath1));
+            assertTrue(operation3.classpath().contains(run_classpath2));
+            assertTrue(operation3.runOptions().contains(run_option1));
+            assertTrue(operation3.runOptions().contains(run_option2));
+        } finally {
+            FileUtils.deleteDirectory(work_directory);
+        }
+    }
+
+    @Test
+    void testExecute()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var source_file1 = new File(tmp, "Source1.java");
+
+            FileUtils.writeString("""
+                public class Source1 {
+                    public final String name_;
+                    public Source1() {
+                        name_ = "source1";
+                    }
+                    
+                    public static void main(String[] arguments)
+                    throws Exception {
+                        System.out.print(new Source1().name_);
+                    }
+                }
+                """, source_file1);
+            var build_main = new File(tmp, "buildMain");
+
+            var compile_operation = new CompileOperation()
+                .buildMainDirectory(build_main)
+                .compileMainClasspath(List.of(build_main.getAbsolutePath()))
+                .mainSourceFiles(List.of(source_file1));
+            compile_operation.execute();
+            assertTrue(compile_operation.diagnostics().isEmpty());
+
+            var output = new StringBuilder();
+            var run_operation = new RunOperation()
+                .mainClass("Source1")
+                .classpath(List.of(build_main.getAbsolutePath()))
+                .outputProcessor(s -> {
+                    output.append(s);
+                    return true;
+                });
+            run_operation.execute();
+
+            assertEquals("source1", output.toString());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testFromProject()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateBlankOperation()
+                .workDirectory(tmp)
+                .packageName("com.example")
+                .projectName("myapp")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation.project()).execute();
+
+            var check_result = new StringBuilder();
+            new RunOperation()
+                .fromProject(create_operation.project())
+                .outputProcessor(s -> {
+                    check_result.append(s);
+                    return true;
+                })
+                .execute();
+            assertEquals("Hello World!", check_result.toString());
+
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestUberJarOperation.java b/src/test/java/rife/bld/operations/TestUberJarOperation.java
new file mode 100644
index 0000000..1a022a0
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestUberJarOperation.java
@@ -0,0 +1,182 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.NamedFile;
+import rife.bld.operations.exceptions.ExitStatusException;
+import rife.tools.FileUtils;
+import rife.tools.exceptions.FileUtilsErrorException;
+
+import java.io.File;
+import java.net.URL;
+import java.nio.file.Files;
+import java.util.List;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import java.util.jar.JarFile;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class TestUberJarOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new UberJarOperation();
+        assertTrue(operation.jarSourceFiles().isEmpty());
+        assertTrue(operation.sourceDirectories().isEmpty());
+        assertNull(operation.destinationDirectory());
+        assertNull(operation.destinationFileName());
+        assertNull(operation.mainClass());
+    }
+
+    @Test
+    void testPopulation() {
+        var jar_source_file1 = new File("jarSourceFile1");
+        var jar_source_file2 = new File("jarSourceFile2");
+        var resource_source_directory1 = new NamedFile("resourceSourceDirectory1", new File("resourceSourceDirectory1"));
+        var resource_source_directory2 = new NamedFile("resourceSourceDirectory2", new File("resourceSourceDirectory2"));
+        var destination_directory = new File("destinationDirectory");
+        var destination_fileName = "destinationFileName";
+        var main_class = "mainClass";
+
+        var operation1 = new UberJarOperation()
+            .jarSourceFiles(List.of(jar_source_file1, jar_source_file2))
+            .sourceDirectories(List.of(resource_source_directory1, resource_source_directory2))
+            .destinationDirectory(destination_directory)
+            .destinationFileName(destination_fileName)
+            .mainClass(main_class);
+
+        assertTrue(operation1.jarSourceFiles().contains(jar_source_file1));
+        assertTrue(operation1.jarSourceFiles().contains(jar_source_file2));
+        assertTrue(operation1.sourceDirectories().contains(resource_source_directory1));
+        assertTrue(operation1.sourceDirectories().contains(resource_source_directory2));
+        assertEquals(destination_directory, operation1.destinationDirectory());
+        assertEquals(destination_fileName, operation1.destinationFileName());
+        assertEquals(main_class, operation1.mainClass());
+
+        var operation2 = new UberJarOperation()
+            .destinationDirectory(destination_directory)
+            .destinationFileName(destination_fileName)
+            .mainClass(main_class);
+        operation2.jarSourceFiles().add(jar_source_file1);
+        operation2.jarSourceFiles().add(jar_source_file2);
+        operation2.sourceDirectories().add(resource_source_directory1);
+        operation2.sourceDirectories().add(resource_source_directory2);
+        assertEquals(main_class, operation1.mainClass());
+
+        assertTrue(operation2.jarSourceFiles().contains(jar_source_file1));
+        assertTrue(operation2.jarSourceFiles().contains(jar_source_file2));
+        assertTrue(operation2.sourceDirectories().contains(resource_source_directory1));
+        assertTrue(operation2.sourceDirectories().contains(resource_source_directory2));
+        assertEquals(destination_directory, operation2.destinationDirectory());
+        assertEquals(destination_fileName, operation2.destinationFileName());
+
+        var operation3 = new UberJarOperation()
+            .jarSourceFiles(jar_source_file1, jar_source_file2)
+            .sourceDirectories(resource_source_directory1, resource_source_directory2)
+            .destinationDirectory(destination_directory)
+            .destinationFileName(destination_fileName)
+            .mainClass(main_class);
+
+        assertTrue(operation3.jarSourceFiles().contains(jar_source_file1));
+        assertTrue(operation3.jarSourceFiles().contains(jar_source_file2));
+        assertTrue(operation3.sourceDirectories().contains(resource_source_directory1));
+        assertTrue(operation3.sourceDirectories().contains(resource_source_directory2));
+        assertEquals(destination_directory, operation3.destinationDirectory());
+        assertEquals(destination_fileName, operation3.destinationFileName());
+        assertEquals(main_class, operation3.mainClass());
+    }
+
+    @Test
+    void testFromProjectBlank()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateBlankOperation()
+                .workDirectory(tmp)
+                .packageName("tst")
+                .projectName("app")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation.project())
+                .execute();
+
+            new JarOperation()
+                .fromProject(create_operation.project())
+                .execute();
+
+            var uberjar_operation = new UberJarOperation()
+                .fromProject(create_operation.project());
+            uberjar_operation.execute();
+
+            var uberjar_file = new File(uberjar_operation.destinationDirectory(), uberjar_operation.destinationFileName());
+            try (var jar = new JarFile(uberjar_file)) {
+                assertEquals(2, jar.size());
+            }
+
+            var check_result = new StringBuilder();
+            new RunOperation()
+                .javaOptions(List.of("-jar"))
+                .mainClass(uberjar_file.getAbsolutePath())
+                .outputProcessor(s -> {
+                    check_result.append(s);
+                    return true;
+                })
+                .execute();
+            assertEquals("Hello World!", check_result.toString());
+
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    @Test
+    void testFromProjectWeb()
+    throws Exception {
+        var tmp = Files.createTempDirectory("web").toFile();
+        try {
+            var create_operation = new CreateRife2Operation()
+                .workDirectory(tmp)
+                .packageName("tst")
+                .projectName("app")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation.project())
+                .execute();
+
+            create_operation.project().uberjar();
+
+            var uberjar_file = new File(create_operation.project().buildDistDirectory(), create_operation.project().uberJarFileName());
+            try (var jar = new JarFile(uberjar_file)) {
+                assertTrue(jar.size() > 1300);
+            }
+
+            var check_result = new StringBuilder();
+            var run_operation = new RunOperation()
+                .javaOptions(List.of("-jar"))
+                .mainClass(uberjar_file.getAbsolutePath());
+            var executor = Executors.newSingleThreadScheduledExecutor();
+            var checked_url = new URL("http://localhost:8080");
+            executor.schedule(() -> {
+                try {
+                    check_result.append(FileUtils.readString(checked_url));
+                } catch (FileUtilsErrorException e) {
+                    throw new RuntimeException(e);
+                }
+            }, 1, TimeUnit.SECONDS);
+            executor.schedule(() -> run_operation.process().destroy(), 2, TimeUnit.SECONDS);
+            assertThrows(ExitStatusException.class, run_operation::execute);
+
+            assertTrue(check_result.toString().contains("<p>Hello World App</p>"));
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestUpdatesOperation.java b/src/test/java/rife/bld/operations/TestUpdatesOperation.java
new file mode 100644
index 0000000..ff966fa
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestUpdatesOperation.java
@@ -0,0 +1,172 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.dependencies.DependencyScopes;
+import rife.bld.WebProject;
+import rife.bld.dependencies.*;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestUpdatesOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new UpdatesOperation();
+        assertTrue(operation.dependencies().isEmpty());
+        assertTrue(operation.repositories().isEmpty());
+    }
+
+    @Test
+    void testPopulation() {
+        var repository1 = new Repository("repository1");
+        var repository2 = new Repository("repository2");
+        var dependency1 = new Dependency("group1", "artifact1");
+        var dependency2 = new Dependency("group2", "artifact2");
+
+        var operation1 = new UpdatesOperation()
+            .repositories(List.of(repository1, repository2));
+        var dependency_scopes = new DependencyScopes();
+        dependency_scopes.scope(Scope.compile).include(dependency1).include(dependency2);
+        operation1.dependencies(dependency_scopes);
+        assertTrue(operation1.repositories().contains(repository1));
+        assertTrue(operation1.repositories().contains(repository2));
+        assertTrue(operation1.dependencies().scope(Scope.compile).contains(dependency1));
+        assertTrue(operation1.dependencies().scope(Scope.compile).contains(dependency2));
+
+        var operation2 = new UpdatesOperation();
+        operation2.repositories().add(repository1);
+        operation2.repositories().add(repository2);
+        operation2.dependencies().scope(Scope.compile).include(dependency1).include(dependency2);
+        operation2.dependencies(dependency_scopes);
+        assertTrue(operation2.repositories().contains(repository1));
+        assertTrue(operation2.repositories().contains(repository2));
+        assertTrue(operation2.dependencies().scope(Scope.compile).contains(dependency1));
+        assertTrue(operation2.dependencies().scope(Scope.compile).contains(dependency2));
+
+        var operation3 = new UpdatesOperation()
+            .repositories(repository1, repository2);
+        assertTrue(operation3.repositories().contains(repository1));
+        assertTrue(operation3.repositories().contains(repository2));
+    }
+
+    @Test
+    void testExecution()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var operation = new UpdatesOperation()
+                .repositories(List.of(Repository.MAVEN_CENTRAL));
+            operation.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 10, 0)));
+            operation.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 0)));
+            operation.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(1, 0, 6)));
+            operation.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 0, 1)));
+
+            operation.execute();
+
+            var results = operation.updates();
+            assertFalse(results.isEmpty());
+
+            assertEquals(1, results.get(Scope.compile).size());
+            assertEquals(1, results.get(Scope.runtime).size());
+            assertEquals(1, results.get(Scope.standalone).size());
+            assertEquals(1, results.get(Scope.test).size());
+            results.get(Scope.compile).forEach(dependency -> {
+                assertEquals("org.apache.commons", dependency.groupId());
+                assertEquals("commons-lang3", dependency.artifactId());
+                assertNotEquals(new VersionNumber(3, 10, 0), dependency.version());
+            });
+            results.get(Scope.runtime).forEach(dependency -> {
+                assertEquals("org.apache.commons", dependency.groupId());
+                assertEquals("commons-collections4", dependency.artifactId());
+                assertNotEquals(new VersionNumber(4, 0), dependency.version());
+            });
+            results.get(Scope.standalone).forEach(dependency -> {
+                assertEquals("org.slf4j", dependency.groupId());
+                assertEquals("slf4j-simple", dependency.artifactId());
+                assertNotEquals(new VersionNumber(1, 0, 6), dependency.version());
+            });
+            results.get(Scope.test).forEach(dependency -> {
+                assertEquals("org.apache.httpcomponents.client5", dependency.groupId());
+                assertEquals("httpclient5", dependency.artifactId());
+                assertNotEquals(new VersionNumber(5, 0, 1), dependency.version());
+            });
+
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+
+    static class TestProject extends WebProject {
+        public TestProject(File tmp) {
+            workDirectory = tmp;
+            pkg = "test.pkg";
+        }
+    }
+
+    @Test
+    void testFromProject()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var project = new TestProject(tmp);
+            project.createProjectStructure();
+            project.repositories().add(Repository.MAVEN_CENTRAL);
+            project.dependencies().scope(Scope.compile)
+                .include(new Dependency("org.apache.commons", "commons-lang3", new VersionNumber(3, 10, 0)));
+            project.dependencies().scope(Scope.runtime)
+                .include(new Dependency("org.apache.commons", "commons-collections4", new VersionNumber(4, 0)));
+            project.dependencies().scope(Scope.standalone)
+                .include(new Dependency("org.slf4j", "slf4j-simple", new VersionNumber(1, 0, 6)));
+            project.dependencies().scope(Scope.test)
+                .include(new Dependency("org.apache.httpcomponents.client5", "httpclient5", new VersionNumber(5, 0, 1)));
+
+            var operation = new UpdatesOperation()
+                .fromProject(project);
+
+            operation.execute();
+
+            var results = operation.updates();
+            assertFalse(results.isEmpty());
+
+            assertEquals(1, results.get(Scope.compile).size());
+            assertEquals(1, results.get(Scope.runtime).size());
+            assertEquals(1, results.get(Scope.standalone).size());
+            assertEquals(1, results.get(Scope.test).size());
+            results.get(Scope.compile).forEach(dependency -> {
+                assertEquals("org.apache.commons", dependency.groupId());
+                assertEquals("commons-lang3", dependency.artifactId());
+                assertNotEquals(new VersionNumber(3, 10, 0), dependency.version());
+            });
+            results.get(Scope.runtime).forEach(dependency -> {
+                assertEquals("org.apache.commons", dependency.groupId());
+                assertEquals("commons-collections4", dependency.artifactId());
+                assertNotEquals(new VersionNumber(4, 0), dependency.version());
+            });
+            results.get(Scope.standalone).forEach(dependency -> {
+                assertEquals("org.slf4j", dependency.groupId());
+                assertEquals("slf4j-simple", dependency.artifactId());
+                assertNotEquals(new VersionNumber(1, 0, 6), dependency.version());
+            });
+            results.get(Scope.test).forEach(dependency -> {
+                assertEquals("org.apache.httpcomponents.client5", dependency.groupId());
+                assertEquals("httpclient5", dependency.artifactId());
+                assertNotEquals(new VersionNumber(5, 0, 1), dependency.version());
+            });
+
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/operations/TestWarOperation.java b/src/test/java/rife/bld/operations/TestWarOperation.java
new file mode 100644
index 0000000..d3925e4
--- /dev/null
+++ b/src/test/java/rife/bld/operations/TestWarOperation.java
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.operations;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.NamedFile;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.List;
+import java.util.jar.JarFile;
+import java.util.regex.Pattern;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class TestWarOperation {
+    @Test
+    void testInstantiation() {
+        var operation = new WarOperation();
+        assertTrue(operation.libSourceDirectories().isEmpty());
+        assertTrue(operation.classesSourceDirectories().isEmpty());
+        assertTrue(operation.jarSourceFiles().isEmpty());
+        assertNull(operation.webappDirectory());
+        assertNull(operation.webXmlFile());
+        assertNull(operation.destinationDirectory());
+        assertNull(operation.destinationFileName());
+    }
+
+    @Test
+    void testPopulation() {
+        var lib_source_directory1 = new File("libSourceDirectory1");
+        var lib_source_directory2 = new File("libSourceDirectory2");
+        var classes_source_directory1 = new File("classesSourceDirectory1");
+        var classes_source_directory2 = new File("classesSourceDirectory2");
+        var jar_source_file1 = new NamedFile("jarSourceFile1", new File("jarSourceFile1"));
+        var jar_source_file2 = new NamedFile("jarSourceFile2", new File("jarSourceFile2"));
+        var webapp_directory = new File("webappDirectory");
+        var web_xml_file = new File("webXmlFile");
+        var destination_directory = new File("destinationDirectory");
+        var destination_fileName = "destinationFileName";
+
+        var operation1 = new WarOperation()
+            .libSourceDirectories(List.of(lib_source_directory1, lib_source_directory2))
+            .classesSourceDirectories(List.of(classes_source_directory1, classes_source_directory2))
+            .jarSourceFiles(List.of(jar_source_file1, jar_source_file2))
+            .webappDirectory(webapp_directory)
+            .webXmlFile(web_xml_file)
+            .destinationDirectory(destination_directory)
+            .destinationFileName(destination_fileName);
+
+        assertTrue(operation1.libSourceDirectories().contains(lib_source_directory1));
+        assertTrue(operation1.libSourceDirectories().contains(lib_source_directory2));
+        assertTrue(operation1.classesSourceDirectories().contains(classes_source_directory1));
+        assertTrue(operation1.classesSourceDirectories().contains(classes_source_directory2));
+        assertTrue(operation1.jarSourceFiles().contains(jar_source_file1));
+        assertTrue(operation1.jarSourceFiles().contains(jar_source_file2));
+        assertEquals(webapp_directory, operation1.webappDirectory());
+        assertEquals(web_xml_file, operation1.webXmlFile());
+        assertEquals(destination_directory, operation1.destinationDirectory());
+        assertEquals(destination_fileName, operation1.destinationFileName());
+
+        var operation2 = new WarOperation()
+            .webappDirectory(webapp_directory)
+            .webXmlFile(web_xml_file)
+            .destinationDirectory(destination_directory)
+            .destinationFileName(destination_fileName);
+        operation2.libSourceDirectories().add(lib_source_directory1);
+        operation2.libSourceDirectories().add(lib_source_directory2);
+        operation2.classesSourceDirectories().add(classes_source_directory1);
+        operation2.classesSourceDirectories().add(classes_source_directory2);
+        operation2.jarSourceFiles().add(jar_source_file1);
+        operation2.jarSourceFiles().add(jar_source_file2);
+
+        assertTrue(operation2.libSourceDirectories().contains(lib_source_directory1));
+        assertTrue(operation2.libSourceDirectories().contains(lib_source_directory2));
+        assertTrue(operation2.classesSourceDirectories().contains(classes_source_directory1));
+        assertTrue(operation2.classesSourceDirectories().contains(classes_source_directory2));
+        assertTrue(operation2.jarSourceFiles().contains(jar_source_file1));
+        assertTrue(operation2.jarSourceFiles().contains(jar_source_file2));
+        assertEquals(webapp_directory, operation2.webappDirectory());
+        assertEquals(web_xml_file, operation2.webXmlFile());
+        assertEquals(destination_directory, operation2.destinationDirectory());
+        assertEquals(destination_fileName, operation2.destinationFileName());
+
+        var operation3 = new WarOperation()
+            .libSourceDirectories(lib_source_directory1, lib_source_directory2)
+            .classesSourceDirectories(classes_source_directory1, classes_source_directory2)
+            .jarSourceFiles(jar_source_file1, jar_source_file2)
+            .webappDirectory(webapp_directory)
+            .webXmlFile(web_xml_file)
+            .destinationDirectory(destination_directory)
+            .destinationFileName(destination_fileName);
+
+        assertTrue(operation3.libSourceDirectories().contains(lib_source_directory1));
+        assertTrue(operation3.libSourceDirectories().contains(lib_source_directory2));
+        assertTrue(operation3.classesSourceDirectories().contains(classes_source_directory1));
+        assertTrue(operation3.classesSourceDirectories().contains(classes_source_directory2));
+        assertTrue(operation3.jarSourceFiles().contains(jar_source_file1));
+        assertTrue(operation3.jarSourceFiles().contains(jar_source_file2));
+        assertEquals(webapp_directory, operation3.webappDirectory());
+        assertEquals(web_xml_file, operation3.webXmlFile());
+        assertEquals(destination_directory, operation3.destinationDirectory());
+        assertEquals(destination_fileName, operation3.destinationFileName());
+    }
+
+    @Test
+    void testFromProject()
+    throws Exception {
+        var tmp = Files.createTempDirectory("test").toFile();
+        try {
+            var create_operation = new CreateRife2Operation()
+                .workDirectory(tmp)
+                .packageName("tst")
+                .projectName("app")
+                .downloadDependencies(true);
+            create_operation.execute();
+
+            new CompileOperation()
+                .fromProject(create_operation.project())
+                .execute();
+
+            new JarOperation()
+                .fromProject(create_operation.project())
+                .execute();
+
+            var war_operation = new WarOperation()
+                .fromProject(create_operation.project());
+            war_operation.execute();
+
+            var war_file = new File(war_operation.destinationDirectory(), war_operation.destinationFileName());
+            var content = new StringBuilder();
+            try (var jar = new JarFile(war_file)) {
+                var e = jar.entries();
+                while (e.hasMoreElements()) {
+                    var jar_entry = e.nextElement();
+                    content.append(jar_entry.getName());
+                    content.append("\n");
+                }
+            }
+
+            assertTrue(Pattern.compile("""
+                META-INF/MANIFEST\\.MF
+                WEB-INF/lib/app-0\\.0\\.1\\.jar
+                WEB-INF/lib/rife2-.+\\.jar
+                WEB-INF/web\\.xml
+                css/style\\.css
+                """).matcher(content.toString()).matches());
+        } finally {
+            FileUtils.deleteDirectory(tmp);
+        }
+    }
+}
diff --git a/src/test/java/rife/bld/publish/TestMetadataBuilder.java b/src/test/java/rife/bld/publish/TestMetadataBuilder.java
new file mode 100644
index 0000000..39f184e
--- /dev/null
+++ b/src/test/java/rife/bld/publish/TestMetadataBuilder.java
@@ -0,0 +1,250 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.publish;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.dependencies.*;
+
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestMetadataBuilder {
+    @Test
+    void testInstantiation() {
+        var builder = new MetadataBuilder();
+        assertNull(builder.info());
+        assertNull(builder.updated());
+    }
+
+    @Test
+    void testEmptyBuild() {
+        var builder = new MetadataBuilder();
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <metadata modelVersion="1.1.0">
+              <groupId></groupId>
+              <artifactId></artifactId>
+              <versioning>
+              </versioning>
+            </metadata>
+            """, builder.build());
+    }
+
+    @Test
+    void testMainInfoBuild() {
+        var builder = new MetadataBuilder()
+            .info(new PublishInfo()
+                .groupId("com.example")
+                .artifactId("myapp")
+                .version(VersionNumber.parse("1.2.3-SNAPSHOT")));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <metadata modelVersion="1.1.0">
+              <groupId>com.example</groupId>
+              <artifactId>myapp</artifactId>
+              <versioning>
+                <latest>1.2.3-SNAPSHOT</latest>
+                <release>1.2.3-SNAPSHOT</release>
+                <versions>
+                  <version>1.2.3-SNAPSHOT</version>
+                </versions>
+              </versioning>
+            </metadata>
+            """, builder.build());
+    }
+
+    @Test
+    void testUpdatedBuild() {
+        var builder = new MetadataBuilder()
+            .updated(ZonedDateTime.of(2023, 3, 27, 8, 56, 17, 123, ZoneId.of("America/New_York")));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <metadata modelVersion="1.1.0">
+              <groupId></groupId>
+              <artifactId></artifactId>
+              <versioning>
+                <lastUpdated>20230327125617</lastUpdated>
+              </versioning>
+            </metadata>
+            """, builder.build());
+    }
+
+    @Test
+    void testOtherVersionsBuild() {
+        var builder = new MetadataBuilder()
+            .otherVersions(List.of(new VersionNumber(6,0,1), new VersionNumber(3,0,2), new VersionNumber(1,0,3), new VersionNumber(3,0,2)));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <metadata modelVersion="1.1.0">
+              <groupId></groupId>
+              <artifactId></artifactId>
+              <versioning>
+                <versions>
+                  <version>1.0.3</version>
+                  <version>3.0.2</version>
+                  <version>6.0.1</version>
+                </versions>
+              </versioning>
+            </metadata>
+            """, builder.build());
+    }
+
+    @Test
+    void testCompleteBuild() {
+        var builder = new MetadataBuilder()
+            .info(new PublishInfo()
+                .groupId("com.example")
+                .artifactId("myapp")
+                .version(VersionNumber.parse("1.2.3-SNAPSHOT")))
+            .otherVersions(List.of(new VersionNumber(6,0,1), new VersionNumber(3,0,2), new VersionNumber(1,0,3), new VersionNumber(3,0,2)))
+            .updated(ZonedDateTime.of(2023, 3, 27, 8, 56, 17, 123, ZoneId.of("America/New_York")));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <metadata modelVersion="1.1.0">
+              <groupId>com.example</groupId>
+              <artifactId>myapp</artifactId>
+              <versioning>
+                <latest>1.2.3-SNAPSHOT</latest>
+                <release>1.2.3-SNAPSHOT</release>
+                <versions>
+                  <version>1.0.3</version>
+                  <version>1.2.3-SNAPSHOT</version>
+                  <version>3.0.2</version>
+                  <version>6.0.1</version>
+                </versions>
+                <lastUpdated>20230327125617</lastUpdated>
+              </versioning>
+            </metadata>
+            """, builder.build());
+    }
+
+    @Test
+    void testSnapshot() {
+        var builder = new MetadataBuilder()
+            .info(new PublishInfo()
+                .groupId("com.example")
+                .artifactId("myapp")
+                .version(VersionNumber.parse("1.2.3-SNAPSHOT")))
+            .snapshot(ZonedDateTime.of(2023, 3, 27, 8, 56, 17, 123, ZoneId.of("America/New_York")), 5);
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <metadata modelVersion="1.1.0">
+              <groupId>com.example</groupId>
+              <artifactId>myapp</artifactId>
+              <version>1.2.3-SNAPSHOT</version>
+              <versioning>
+                <snapshot>
+                  <timestamp>20230327.125617</timestamp>
+                  <buildNumber>5</buildNumber>
+                </snapshot>
+              </versioning>
+            </metadata>
+            """, builder.build());
+    }
+
+    @Test
+    void testSnapshotVersions() {
+        var moment = ZonedDateTime.of(2023, 3, 27, 8, 56, 17, 123, ZoneId.of("America/New_York"));
+        var moment2 = ZonedDateTime.of(2023, 3, 27, 8, 56, 17, 123, ZoneId.of("America/New_York"));
+        var moment3 = ZonedDateTime.of(2023, 5, 27, 8, 56, 17, 123, ZoneId.of("America/New_York"));
+        var builder = new MetadataBuilder()
+            .info(new PublishInfo()
+                .groupId("com.example")
+                .artifactId("myapp")
+                .version(VersionNumber.parse("1.2.3-SNAPSHOT")))
+            .snapshot(moment, 5)
+            .snapshotVersions(List.of(
+                new SnapshotVersion("classifier1", "ext1", "123", moment2),
+                new SnapshotVersion("classifier2", "ext2", "456", moment3),
+                new SnapshotVersion("classifier3", "ext3", "789", moment2)));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <metadata modelVersion="1.1.0">
+              <groupId>com.example</groupId>
+              <artifactId>myapp</artifactId>
+              <version>1.2.3-SNAPSHOT</version>
+              <versioning>
+                <snapshot>
+                  <timestamp>20230327.125617</timestamp>
+                  <buildNumber>5</buildNumber>
+                </snapshot>
+                <snapshotVersions>
+                  <snapshotVersion>
+                    <classifier>classifier1</classifier>
+                    <extension>ext1</extension>
+                    <value>123</value>
+                    <updated>20230327125617</updated>
+                  </snapshotVersion>
+                  <snapshotVersion>
+                    <classifier>classifier2</classifier>
+                    <extension>ext2</extension>
+                    <value>456</value>
+                    <updated>20230527125617</updated>
+                  </snapshotVersion>
+                  <snapshotVersion>
+                    <classifier>classifier3</classifier>
+                    <extension>ext3</extension>
+                    <value>789</value>
+                    <updated>20230327125617</updated>
+                  </snapshotVersion>
+                </snapshotVersions>
+              </versioning>
+            </metadata>
+            """, builder.build());
+    }
+
+    @Test
+    void testLocalSnapshotVersions() {
+        var moment = ZonedDateTime.of(2023, 3, 27, 8, 56, 17, 123, ZoneId.of("America/New_York"));
+        var moment2 = ZonedDateTime.of(2023, 3, 27, 8, 56, 17, 123, ZoneId.of("America/New_York"));
+        var moment3 = ZonedDateTime.of(2023, 5, 27, 8, 56, 17, 123, ZoneId.of("America/New_York"));
+        var builder = new MetadataBuilder()
+            .info(new PublishInfo()
+                .groupId("com.example")
+                .artifactId("myapp")
+                .version(VersionNumber.parse("1.2.3-SNAPSHOT")))
+            .snapshotLocal()
+            .snapshotVersions(List.of(
+                new SnapshotVersion("classifier1", "ext1", "123", moment2),
+                new SnapshotVersion("classifier2", "ext2", "456", moment3),
+                new SnapshotVersion("classifier3", "ext3", "789", moment2)));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <metadata modelVersion="1.1.0">
+              <groupId>com.example</groupId>
+              <artifactId>myapp</artifactId>
+              <version>1.2.3-SNAPSHOT</version>
+              <versioning>
+                <snapshot>
+                  <localCopy>true</localCopy>
+                </snapshot>
+                <snapshotVersions>
+                  <snapshotVersion>
+                    <classifier>classifier1</classifier>
+                    <extension>ext1</extension>
+                    <value>123</value>
+                    <updated>20230327125617</updated>
+                  </snapshotVersion>
+                  <snapshotVersion>
+                    <classifier>classifier2</classifier>
+                    <extension>ext2</extension>
+                    <value>456</value>
+                    <updated>20230527125617</updated>
+                  </snapshotVersion>
+                  <snapshotVersion>
+                    <classifier>classifier3</classifier>
+                    <extension>ext3</extension>
+                    <value>789</value>
+                    <updated>20230327125617</updated>
+                  </snapshotVersion>
+                </snapshotVersions>
+              </versioning>
+            </metadata>
+            """, builder.build());
+    }
+}
diff --git a/src/test/java/rife/bld/publish/TestPomBuilder.java b/src/test/java/rife/bld/publish/TestPomBuilder.java
new file mode 100644
index 0000000..b6fbca9
--- /dev/null
+++ b/src/test/java/rife/bld/publish/TestPomBuilder.java
@@ -0,0 +1,558 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.publish;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.dependencies.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class TestPomBuilder {
+    @Test
+    void testInstantiation() {
+        var builder = new PomBuilder();
+        assertNull(builder.info());
+        assertTrue(builder.dependencies().isEmpty());
+    }
+
+    @Test
+    void testEmptyBuild() {
+        var builder = new PomBuilder();
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+              <modelVersion>4.0.0</modelVersion>
+              <groupId></groupId>
+              <artifactId></artifactId>
+              <version></version>
+              <name></name>
+              <description></description>
+              <url></url>
+            </project>
+            """, builder.build());
+    }
+
+    @Test
+    void testMainInfoBuild() {
+        var builder = new PomBuilder()
+            .info(new PublishInfo()
+                .groupId("com.example")
+                .artifactId("myapp")
+                .version(VersionNumber.parse("1.2.3-SNAPSHOT"))
+                .name("the thing")
+                .description("the thing but longer")
+                .url("https://the.thing"));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+              <modelVersion>4.0.0</modelVersion>
+              <groupId>com.example</groupId>
+              <artifactId>myapp</artifactId>
+              <version>1.2.3-SNAPSHOT</version>
+              <name>the thing</name>
+              <description>the thing but longer</description>
+              <url>https://the.thing</url>
+            </project>
+            """, builder.build());
+    }
+
+    @Test
+    void testLicensesInfoBuild() {
+        var builder = new PomBuilder()
+            .info(new PublishInfo()
+                .license(new PublishLicense().name("license1").url("https://license1.com"))
+                .license(new PublishLicense().name("license2").url("https://license2.com")));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+              <modelVersion>4.0.0</modelVersion>
+              <groupId></groupId>
+              <artifactId></artifactId>
+              <version></version>
+              <name></name>
+              <description></description>
+              <url></url>
+              <licenses>
+                <license>
+                  <name>license1</name>
+                  <url>https://license1.com</url>
+                </license>
+                <license>
+                  <name>license2</name>
+                  <url>https://license2.com</url>
+                </license>
+              </licenses>
+            </project>
+            """, builder.build());
+    }
+
+    @Test
+    void testDevelopersInfoBuild() {
+        var builder = new PomBuilder()
+            .info(new PublishInfo()
+                .developer(new PublishDeveloper().id("id1").name("name1").email("email1").url("url1"))
+                .developer(new PublishDeveloper().id("id2").name("name2"))
+                .developer(new PublishDeveloper().id("id3").name("name3").url("url3")));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+              <modelVersion>4.0.0</modelVersion>
+              <groupId></groupId>
+              <artifactId></artifactId>
+              <version></version>
+              <name></name>
+              <description></description>
+              <url></url>
+              <developers>
+                <developer>
+                  <id>id1</id>
+                  <name>name1</name>
+                  <email>email1</email>
+                  <url>url1</url>
+                </developer>
+                <developer>
+                  <id>id2</id>
+                  <name>name2</name>
+                  <email></email>
+                  <url></url>
+                </developer>
+                <developer>
+                  <id>id3</id>
+                  <name>name3</name>
+                  <email></email>
+                  <url>url3</url>
+                </developer>
+              </developers>
+            </project>
+            """, builder.build());
+    }
+
+    @Test
+    void testScmInfoBuild() {
+        var builder = new PomBuilder()
+            .info(new PublishInfo()
+                .scm(new PublishScm().connection("conn1").developerConnection("devconn1").url("url1")));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+              <modelVersion>4.0.0</modelVersion>
+              <groupId></groupId>
+              <artifactId></artifactId>
+              <version></version>
+              <name></name>
+              <description></description>
+              <url></url>
+              <scm>
+                <connection>conn1</connection>
+                <developerConnection>devconn1</developerConnection>
+                <url>url1</url>
+              </scm>
+            </project>
+            """, builder.build());
+    }
+
+    @Test
+    void testFullInfoBuild() {
+        var builder = new PomBuilder()
+            .info(new PublishInfo()
+                .groupId("com.example")
+                .artifactId("myapp")
+                .version(VersionNumber.parse("1.2.3-SNAPSHOT"))
+                .name("the thing")
+                .description("the thing but longer")
+                .url("https://the.thing")
+                .license(new PublishLicense().name("license1").url("https://license1.com"))
+                .license(new PublishLicense().name("license2").url("https://license2.com"))
+                .developer(new PublishDeveloper().id("id1").name("name1").email("email1").url("url1"))
+                .developer(new PublishDeveloper().id("id2").name("name2"))
+                .developer(new PublishDeveloper().id("id3").name("name3").url("url3"))
+                .scm(new PublishScm().connection("conn1").developerConnection("devconn1").url("url1")));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+              <modelVersion>4.0.0</modelVersion>
+              <groupId>com.example</groupId>
+              <artifactId>myapp</artifactId>
+              <version>1.2.3-SNAPSHOT</version>
+              <name>the thing</name>
+              <description>the thing but longer</description>
+              <url>https://the.thing</url>
+              <licenses>
+                <license>
+                  <name>license1</name>
+                  <url>https://license1.com</url>
+                </license>
+                <license>
+                  <name>license2</name>
+                  <url>https://license2.com</url>
+                </license>
+              </licenses>
+              <developers>
+                <developer>
+                  <id>id1</id>
+                  <name>name1</name>
+                  <email>email1</email>
+                  <url>url1</url>
+                </developer>
+                <developer>
+                  <id>id2</id>
+                  <name>name2</name>
+                  <email></email>
+                  <url></url>
+                </developer>
+                <developer>
+                  <id>id3</id>
+                  <name>name3</name>
+                  <email></email>
+                  <url>url3</url>
+                </developer>
+              </developers>
+              <scm>
+                <connection>conn1</connection>
+                <developerConnection>devconn1</developerConnection>
+                <url>url1</url>
+              </scm>
+            </project>
+            """, builder.build());
+    }
+
+    @Test
+    void testDependenciesCompile() {
+        var builder = new PomBuilder();
+        builder.dependencies().scope(Scope.compile)
+            .include(new Dependency("com.uwyn.rife2", "rife2"))
+            .include(new Dependency("com.uwyn.rife2", "rife2", VersionNumber.UNKNOWN, "agent"))
+            .include(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 5, 5), "bld", "zip"))
+            .include(new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14))
+                .exclude("*", "*").exclude("groupId", "artifactId"))
+            .include(new Dependency("org.springframework.boot", "spring-boot-starter", new VersionNumber(3, 0, 4))
+                .exclude("*", "artifactId"));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+              <modelVersion>4.0.0</modelVersion>
+              <groupId></groupId>
+              <artifactId></artifactId>
+              <version></version>
+              <name></name>
+              <description></description>
+              <url></url>
+              <dependencies>
+                <dependency>
+                  <groupId>com.uwyn.rife2</groupId>
+                  <artifactId>rife2</artifactId>
+                  <scope>compile</scope>
+                </dependency>
+                <dependency>
+                  <groupId>com.uwyn.rife2</groupId>
+                  <artifactId>rife2</artifactId>
+                  <classifier>agent</classifier>
+                  <scope>compile</scope>
+                </dependency>
+                <dependency>
+                  <groupId>com.uwyn.rife2</groupId>
+                  <artifactId>rife2</artifactId>
+                  <version>1.5.5</version>
+                  <type>zip</type>
+                  <classifier>bld</classifier>
+                  <scope>compile</scope>
+                </dependency>
+                <dependency>
+                  <groupId>org.eclipse.jetty</groupId>
+                  <artifactId>jetty-server</artifactId>
+                  <version>11.0.14</version>
+                  <scope>compile</scope>
+                  <exclusions>
+                    <exclusion>
+                      <groupId>*</groupId>
+                      <artifactId>*</artifactId>
+                    </exclusion>
+                    <exclusion>
+                      <groupId>groupId</groupId>
+                      <artifactId>artifactId</artifactId>
+                    </exclusion>
+                  </exclusions>
+                </dependency>
+                <dependency>
+                  <groupId>org.springframework.boot</groupId>
+                  <artifactId>spring-boot-starter</artifactId>
+                  <version>3.0.4</version>
+                  <scope>compile</scope>
+                  <exclusions>
+                    <exclusion>
+                      <groupId>*</groupId>
+                      <artifactId>artifactId</artifactId>
+                    </exclusion>
+                  </exclusions>
+                </dependency>
+              </dependencies>
+            </project>
+            """, builder.build());
+    }
+
+    @Test
+    void testDependenciesRuntime() {
+        var builder = new PomBuilder();
+        builder.dependencies().scope(Scope.runtime)
+            .include(new Dependency("com.uwyn.rife2", "rife2"))
+            .include(new Dependency("com.uwyn.rife2", "rife2", VersionNumber.UNKNOWN, "agent"))
+            .include(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 5, 5), "bld", "zip"))
+            .include(new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14)))
+            .include(new Dependency("org.springframework.boot", "spring-boot-starter", new VersionNumber(3, 0, 4)));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+              <modelVersion>4.0.0</modelVersion>
+              <groupId></groupId>
+              <artifactId></artifactId>
+              <version></version>
+              <name></name>
+              <description></description>
+              <url></url>
+              <dependencies>
+                <dependency>
+                  <groupId>com.uwyn.rife2</groupId>
+                  <artifactId>rife2</artifactId>
+                  <scope>runtime</scope>
+                </dependency>
+                <dependency>
+                  <groupId>com.uwyn.rife2</groupId>
+                  <artifactId>rife2</artifactId>
+                  <classifier>agent</classifier>
+                  <scope>runtime</scope>
+                </dependency>
+                <dependency>
+                  <groupId>com.uwyn.rife2</groupId>
+                  <artifactId>rife2</artifactId>
+                  <version>1.5.5</version>
+                  <type>zip</type>
+                  <classifier>bld</classifier>
+                  <scope>runtime</scope>
+                </dependency>
+                <dependency>
+                  <groupId>org.eclipse.jetty</groupId>
+                  <artifactId>jetty-server</artifactId>
+                  <version>11.0.14</version>
+                  <scope>runtime</scope>
+                </dependency>
+                <dependency>
+                  <groupId>org.springframework.boot</groupId>
+                  <artifactId>spring-boot-starter</artifactId>
+                  <version>3.0.4</version>
+                  <scope>runtime</scope>
+                </dependency>
+              </dependencies>
+            </project>
+            """, builder.build());
+    }
+
+    @Test
+    void testDependencies() {
+        var builder = new PomBuilder();
+        builder.dependencies().scope(Scope.compile)
+            .include(new Dependency("com.uwyn.rife2", "rife2"))
+            .include(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 5, 5), "bld", "zip"))
+            .include(new Dependency("org.springframework.boot", "spring-boot-starter", new VersionNumber(3, 0, 4))
+                .exclude("*", "artifactId"));
+        builder.dependencies().scope(Scope.runtime)
+            .include(new Dependency("com.uwyn.rife2", "rife2", VersionNumber.UNKNOWN, "agent"))
+            .include(new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14))
+                .exclude("*", "*").exclude("groupId", "artifactId"));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+              <modelVersion>4.0.0</modelVersion>
+              <groupId></groupId>
+              <artifactId></artifactId>
+              <version></version>
+              <name></name>
+              <description></description>
+              <url></url>
+              <dependencies>
+                <dependency>
+                  <groupId>com.uwyn.rife2</groupId>
+                  <artifactId>rife2</artifactId>
+                  <scope>compile</scope>
+                </dependency>
+                <dependency>
+                  <groupId>com.uwyn.rife2</groupId>
+                  <artifactId>rife2</artifactId>
+                  <version>1.5.5</version>
+                  <type>zip</type>
+                  <classifier>bld</classifier>
+                  <scope>compile</scope>
+                </dependency>
+                <dependency>
+                  <groupId>org.springframework.boot</groupId>
+                  <artifactId>spring-boot-starter</artifactId>
+                  <version>3.0.4</version>
+                  <scope>compile</scope>
+                  <exclusions>
+                    <exclusion>
+                      <groupId>*</groupId>
+                      <artifactId>artifactId</artifactId>
+                    </exclusion>
+                  </exclusions>
+                </dependency>
+                <dependency>
+                  <groupId>com.uwyn.rife2</groupId>
+                  <artifactId>rife2</artifactId>
+                  <classifier>agent</classifier>
+                  <scope>runtime</scope>
+                </dependency>
+                <dependency>
+                  <groupId>org.eclipse.jetty</groupId>
+                  <artifactId>jetty-server</artifactId>
+                  <version>11.0.14</version>
+                  <scope>runtime</scope>
+                  <exclusions>
+                    <exclusion>
+                      <groupId>*</groupId>
+                      <artifactId>*</artifactId>
+                    </exclusion>
+                    <exclusion>
+                      <groupId>groupId</groupId>
+                      <artifactId>artifactId</artifactId>
+                    </exclusion>
+                  </exclusions>
+                </dependency>
+              </dependencies>
+            </project>
+            """, builder.build());
+    }
+
+    @Test
+    void testComplete() {
+        var builder = new PomBuilder()
+            .info(new PublishInfo()
+                .groupId("com.example")
+                .artifactId("myapp")
+                .version(VersionNumber.parse("1.2.3-SNAPSHOT"))
+                .name("the thing")
+                .description("the thing but longer")
+                .url("https://the.thing")
+                .license(new PublishLicense().name("license1").url("https://license1.com"))
+                .license(new PublishLicense().name("license2").url("https://license2.com"))
+                .developer(new PublishDeveloper().id("id1").name("name1").email("email1").url("url1"))
+                .developer(new PublishDeveloper().id("id2").name("name2"))
+                .developer(new PublishDeveloper().id("id3").name("name3").url("url3"))
+                .scm(new PublishScm().connection("conn1").developerConnection("devconn1").url("url1")));
+        builder.dependencies().scope(Scope.compile)
+            .include(new Dependency("com.uwyn.rife2", "rife2"))
+            .include(new Dependency("com.uwyn.rife2", "rife2", new VersionNumber(1, 5, 5), "bld", "zip"))
+            .include(new Dependency("org.springframework.boot", "spring-boot-starter", new VersionNumber(3, 0, 4))
+                .exclude("*", "artifactId"));
+        builder.dependencies().scope(Scope.runtime)
+            .include(new Dependency("com.uwyn.rife2", "rife2", VersionNumber.UNKNOWN, "agent"))
+            .include(new Dependency("org.eclipse.jetty", "jetty-server", new VersionNumber(11, 0, 14))
+                .exclude("*", "*").exclude("groupId", "artifactId"));
+        assertEquals("""
+            <?xml version="1.0" encoding="UTF-8"?>
+            <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+              <modelVersion>4.0.0</modelVersion>
+              <groupId>com.example</groupId>
+              <artifactId>myapp</artifactId>
+              <version>1.2.3-SNAPSHOT</version>
+              <name>the thing</name>
+              <description>the thing but longer</description>
+              <url>https://the.thing</url>
+              <licenses>
+                <license>
+                  <name>license1</name>
+                  <url>https://license1.com</url>
+                </license>
+                <license>
+                  <name>license2</name>
+                  <url>https://license2.com</url>
+                </license>
+              </licenses>
+              <dependencies>
+                <dependency>
+                  <groupId>com.uwyn.rife2</groupId>
+                  <artifactId>rife2</artifactId>
+                  <scope>compile</scope>
+                </dependency>
+                <dependency>
+                  <groupId>com.uwyn.rife2</groupId>
+                  <artifactId>rife2</artifactId>
+                  <version>1.5.5</version>
+                  <type>zip</type>
+                  <classifier>bld</classifier>
+                  <scope>compile</scope>
+                </dependency>
+                <dependency>
+                  <groupId>org.springframework.boot</groupId>
+                  <artifactId>spring-boot-starter</artifactId>
+                  <version>3.0.4</version>
+                  <scope>compile</scope>
+                  <exclusions>
+                    <exclusion>
+                      <groupId>*</groupId>
+                      <artifactId>artifactId</artifactId>
+                    </exclusion>
+                  </exclusions>
+                </dependency>
+                <dependency>
+                  <groupId>com.uwyn.rife2</groupId>
+                  <artifactId>rife2</artifactId>
+                  <classifier>agent</classifier>
+                  <scope>runtime</scope>
+                </dependency>
+                <dependency>
+                  <groupId>org.eclipse.jetty</groupId>
+                  <artifactId>jetty-server</artifactId>
+                  <version>11.0.14</version>
+                  <scope>runtime</scope>
+                  <exclusions>
+                    <exclusion>
+                      <groupId>*</groupId>
+                      <artifactId>*</artifactId>
+                    </exclusion>
+                    <exclusion>
+                      <groupId>groupId</groupId>
+                      <artifactId>artifactId</artifactId>
+                    </exclusion>
+                  </exclusions>
+                </dependency>
+              </dependencies>
+              <developers>
+                <developer>
+                  <id>id1</id>
+                  <name>name1</name>
+                  <email>email1</email>
+                  <url>url1</url>
+                </developer>
+                <developer>
+                  <id>id2</id>
+                  <name>name2</name>
+                  <email></email>
+                  <url></url>
+                </developer>
+                <developer>
+                  <id>id3</id>
+                  <name>name3</name>
+                  <email></email>
+                  <url>url3</url>
+                </developer>
+              </developers>
+              <scm>
+                <connection>conn1</connection>
+                <developerConnection>devconn1</developerConnection>
+                <url>url1</url>
+              </scm>
+            </project>
+            """, builder.build());
+    }
+}
diff --git a/src/test/java/rife/bld/wrapper/TestWrapperExtensionResolver.java b/src/test/java/rife/bld/wrapper/TestWrapperExtensionResolver.java
new file mode 100644
index 0000000..68ba4bf
--- /dev/null
+++ b/src/test/java/rife/bld/wrapper/TestWrapperExtensionResolver.java
@@ -0,0 +1,566 @@
+/*
+ * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ */
+package rife.bld.wrapper;
+
+import org.junit.jupiter.api.Test;
+import rife.bld.BldVersion;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static rife.bld.wrapper.Wrapper.MAVEN_CENTRAL;
+
+public class TestWrapperExtensionResolver {
+    @Test
+    void testNoExtensions()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        try {
+            new Wrapper().createWrapperFiles(tmp2, BldVersion.getVersion());
+
+            var hash_file = new File(tmp1, "wrapper.hash");
+            assertFalse(hash_file.exists());
+            var files1 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files1.size());
+            Collections.sort(files1);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files1));
+
+            var resolver = new WrapperExtensionResolver(tmp1, hash_file, tmp2, Collections.emptySet(), Collections.emptySet(), false, false);
+            resolver.updateExtensions();
+
+            assertTrue(hash_file.exists());
+            var files2 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files2.size());
+            Collections.sort(files2);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files2));
+        } finally {
+            tmp2.delete();
+            tmp1.delete();
+        }
+    }
+
+    @Test
+    void testUpdateExtensions()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        try {
+            new Wrapper().createWrapperFiles(tmp2, BldVersion.getVersion());
+
+            var hash_file = new File(tmp1, "wrapper.hash");
+            assertFalse(hash_file.exists());
+            var files1 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files1.size());
+            Collections.sort(files1);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files1));
+
+            var resolver = new WrapperExtensionResolver(tmp1, hash_file, tmp2, List.of(MAVEN_CENTRAL), List.of("org.antlr:antlr4:4.11.1"), false, false);
+            resolver.updateExtensions();
+
+            assertTrue(hash_file.exists());
+            var files2 = FileUtils.getFileList(tmp2);
+            assertEquals(9, files2.size());
+            Collections.sort(files2);
+            assertEquals("""
+                ST4-4.3.4.jar
+                antlr-runtime-3.5.3.jar
+                antlr4-4.11.1.jar
+                antlr4-runtime-4.11.1.jar
+                bld-wrapper.jar
+                bld-wrapper.properties
+                icu4j-71.1.jar
+                javax.json-1.1.4.jar
+                org.abego.treelayout.core-1.0.3.jar""", String.join("\n", files2));
+        } finally {
+            tmp2.delete();
+            tmp1.delete();
+        }
+    }
+
+    @Test
+    void testUpdateExtensionsSources()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        try {
+            new Wrapper().createWrapperFiles(tmp2, BldVersion.getVersion());
+
+            var hash_file = new File(tmp1, "wrapper.hash");
+            assertFalse(hash_file.exists());
+            var files1 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files1.size());
+            Collections.sort(files1);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files1));
+
+            var resolver = new WrapperExtensionResolver(tmp1, hash_file, tmp2, List.of(MAVEN_CENTRAL), List.of("org.antlr:antlr4:4.11.1"), true, false);
+            resolver.updateExtensions();
+
+            assertTrue(hash_file.exists());
+            var files2 = FileUtils.getFileList(tmp2);
+            assertEquals(16, files2.size());
+            Collections.sort(files2);
+            assertEquals("""
+                ST4-4.3.4-sources.jar
+                ST4-4.3.4.jar
+                antlr-runtime-3.5.3-sources.jar
+                antlr-runtime-3.5.3.jar
+                antlr4-4.11.1-sources.jar
+                antlr4-4.11.1.jar
+                antlr4-runtime-4.11.1-sources.jar
+                antlr4-runtime-4.11.1.jar
+                bld-wrapper.jar
+                bld-wrapper.properties
+                icu4j-71.1-sources.jar
+                icu4j-71.1.jar
+                javax.json-1.1.4-sources.jar
+                javax.json-1.1.4.jar
+                org.abego.treelayout.core-1.0.3-sources.jar
+                org.abego.treelayout.core-1.0.3.jar""", String.join("\n", files2));
+        } finally {
+            tmp2.delete();
+            tmp1.delete();
+        }
+    }
+
+    @Test
+    void testUpdateExtensionsJavadoc()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        try {
+            new Wrapper().createWrapperFiles(tmp2, BldVersion.getVersion());
+
+            var hash_file = new File(tmp1, "wrapper.hash");
+            assertFalse(hash_file.exists());
+            var files1 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files1.size());
+            Collections.sort(files1);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files1));
+
+            var resolver = new WrapperExtensionResolver(tmp1, hash_file, tmp2, List.of(MAVEN_CENTRAL), List.of("org.antlr:antlr4:4.11.1"), false, true);
+            resolver.updateExtensions();
+
+            assertTrue(hash_file.exists());
+            var files2 = FileUtils.getFileList(tmp2);
+            assertEquals(16, files2.size());
+            Collections.sort(files2);
+            assertEquals("""
+                ST4-4.3.4-javadoc.jar
+                ST4-4.3.4.jar
+                antlr-runtime-3.5.3-javadoc.jar
+                antlr-runtime-3.5.3.jar
+                antlr4-4.11.1-javadoc.jar
+                antlr4-4.11.1.jar
+                antlr4-runtime-4.11.1-javadoc.jar
+                antlr4-runtime-4.11.1.jar
+                bld-wrapper.jar
+                bld-wrapper.properties
+                icu4j-71.1-javadoc.jar
+                icu4j-71.1.jar
+                javax.json-1.1.4-javadoc.jar
+                javax.json-1.1.4.jar
+                org.abego.treelayout.core-1.0.3-javadoc.jar
+                org.abego.treelayout.core-1.0.3.jar""", String.join("\n", files2));
+        } finally {
+            tmp2.delete();
+            tmp1.delete();
+        }
+    }
+
+    @Test
+    void testUpdateExtensionsBoth()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        try {
+            new Wrapper().createWrapperFiles(tmp2, BldVersion.getVersion());
+
+            var hash_file = new File(tmp1, "wrapper.hash");
+            assertFalse(hash_file.exists());
+            var files1 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files1.size());
+            Collections.sort(files1);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files1));
+
+            var resolver = new WrapperExtensionResolver(tmp1, hash_file, tmp2, List.of(MAVEN_CENTRAL), List.of("org.antlr:antlr4:4.11.1"), true, true);
+            resolver.updateExtensions();
+
+            assertTrue(hash_file.exists());
+            var files2 = FileUtils.getFileList(tmp2);
+            assertEquals(23, files2.size());
+            Collections.sort(files2);
+            assertEquals("""
+                ST4-4.3.4-javadoc.jar
+                ST4-4.3.4-sources.jar
+                ST4-4.3.4.jar
+                antlr-runtime-3.5.3-javadoc.jar
+                antlr-runtime-3.5.3-sources.jar
+                antlr-runtime-3.5.3.jar
+                antlr4-4.11.1-javadoc.jar
+                antlr4-4.11.1-sources.jar
+                antlr4-4.11.1.jar
+                antlr4-runtime-4.11.1-javadoc.jar
+                antlr4-runtime-4.11.1-sources.jar
+                antlr4-runtime-4.11.1.jar
+                bld-wrapper.jar
+                bld-wrapper.properties
+                icu4j-71.1-javadoc.jar
+                icu4j-71.1-sources.jar
+                icu4j-71.1.jar
+                javax.json-1.1.4-javadoc.jar
+                javax.json-1.1.4-sources.jar
+                javax.json-1.1.4.jar
+                org.abego.treelayout.core-1.0.3-javadoc.jar
+                org.abego.treelayout.core-1.0.3-sources.jar
+                org.abego.treelayout.core-1.0.3.jar""", String.join("\n", files2));
+        } finally {
+            tmp2.delete();
+            tmp1.delete();
+        }
+    }
+
+    @Test
+    void testResolvedRepository()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        try {
+            new Wrapper().createWrapperFiles(tmp2, BldVersion.getVersion());
+
+            var hash_file = new File(tmp1, "wrapper.hash");
+            assertFalse(hash_file.exists());
+            var files1 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files1.size());
+            Collections.sort(files1);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files1));
+
+            var properties = new File(tmp1, "local.properties");
+            FileUtils.writeString("bld.repo.testrepo=" + MAVEN_CENTRAL, properties);
+
+            var resolver = new WrapperExtensionResolver(tmp1, hash_file, tmp2, List.of("testrepo"), List.of("org.antlr:antlr4:4.11.1"), false, false);
+            resolver.updateExtensions();
+
+            assertTrue(hash_file.exists());
+            var files2 = FileUtils.getFileList(tmp2);
+            assertEquals(9, files2.size());
+            Collections.sort(files2);
+            assertEquals("""
+                ST4-4.3.4.jar
+                antlr-runtime-3.5.3.jar
+                antlr4-4.11.1.jar
+                antlr4-runtime-4.11.1.jar
+                bld-wrapper.jar
+                bld-wrapper.properties
+                icu4j-71.1.jar
+                javax.json-1.1.4.jar
+                org.abego.treelayout.core-1.0.3.jar""", String.join("\n", files2));
+        } finally {
+            tmp2.delete();
+            tmp1.delete();
+        }
+    }
+
+    @Test
+    void testCheckHash()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        try {
+            new Wrapper().createWrapperFiles(tmp2, BldVersion.getVersion());
+
+            var hash_file = new File(tmp1, "wrapper.hash");
+            assertFalse(hash_file.exists());
+            var files1 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files1.size());
+            Collections.sort(files1);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files1));
+
+            var resolver = new WrapperExtensionResolver(tmp1, hash_file, tmp2, List.of(MAVEN_CENTRAL), List.of("org.antlr:antlr4:4.11.1"), false, false);
+            resolver.updateExtensions();
+
+            assertTrue(hash_file.exists());
+            var files = tmp2.listFiles();
+            assertEquals(9, files.length);
+            Arrays.stream(files).forEach(file -> {
+                if (!file.getName().startsWith(Wrapper.WRAPPER_PREFIX)) {
+                    file.delete();
+                }
+            });
+            var files2 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files2.size());
+            Collections.sort(files2);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files2));
+
+            resolver.updateExtensions();
+            var files3 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files3.size());
+            Collections.sort(files3);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files3));
+        } finally {
+            tmp2.delete();
+            tmp1.delete();
+        }
+    }
+
+    @Test
+    void testDeleteHash()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        try {
+            new Wrapper().createWrapperFiles(tmp2, BldVersion.getVersion());
+
+            var hash_file = new File(tmp1, "wrapper.hash");
+            assertFalse(hash_file.exists());
+            var files1 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files1.size());
+            Collections.sort(files1);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files1));
+
+            var resolver = new WrapperExtensionResolver(tmp1, hash_file, tmp2, List.of(MAVEN_CENTRAL), List.of("org.antlr:antlr4:4.11.1"), false, false);
+            resolver.updateExtensions();
+
+            assertTrue(hash_file.exists());
+            var files = tmp2.listFiles();
+            assertEquals(9, files.length);
+            Arrays.stream(files).forEach(file -> {
+                if (!file.getName().startsWith(Wrapper.WRAPPER_PREFIX)) {
+                    file.delete();
+                }
+            });
+            var files2 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files2.size());
+            Collections.sort(files2);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files2));
+
+            resolver.updateExtensions();
+            var files3 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files3.size());
+            Collections.sort(files3);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files3));
+            hash_file.delete();
+
+            resolver.updateExtensions();
+            var files4 = FileUtils.getFileList(tmp2);
+            assertEquals(9, files4.size());
+            Collections.sort(files4);
+            assertEquals("""
+                ST4-4.3.4.jar
+                antlr-runtime-3.5.3.jar
+                antlr4-4.11.1.jar
+                antlr4-runtime-4.11.1.jar
+                bld-wrapper.jar
+                bld-wrapper.properties
+                icu4j-71.1.jar
+                javax.json-1.1.4.jar
+                org.abego.treelayout.core-1.0.3.jar""", String.join("\n", files4));
+        } finally {
+            tmp2.delete();
+            tmp1.delete();
+        }
+    }
+
+    @Test
+    void testUpdateHash()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        try {
+            new Wrapper().createWrapperFiles(tmp2, BldVersion.getVersion());
+
+            var hash_file = new File(tmp1, "wrapper.hash");
+            assertFalse(hash_file.exists());
+            var files1 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files1.size());
+            Collections.sort(files1);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files1));
+
+            var resolver = new WrapperExtensionResolver(tmp1, hash_file, tmp2, List.of(MAVEN_CENTRAL), List.of("org.antlr:antlr4:4.11.1"), false, false);
+            resolver.updateExtensions();
+
+            assertTrue(hash_file.exists());
+            var files = tmp2.listFiles();
+            assertEquals(9, files.length);
+            Arrays.stream(files).forEach(file -> {
+                if (!file.getName().startsWith(Wrapper.WRAPPER_PREFIX)) {
+                    file.delete();
+                }
+            });
+            var files2 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files2.size());
+            Collections.sort(files2);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files2));
+
+            resolver.updateExtensions();
+            var files3 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files3.size());
+            Collections.sort(files3);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files3));
+            FileUtils.writeString("updated", hash_file);
+
+            resolver.updateExtensions();
+            var files4 = FileUtils.getFileList(tmp2);
+            assertEquals(9, files4.size());
+            Collections.sort(files4);
+            assertEquals("""
+                ST4-4.3.4.jar
+                antlr-runtime-3.5.3.jar
+                antlr4-4.11.1.jar
+                antlr4-runtime-4.11.1.jar
+                bld-wrapper.jar
+                bld-wrapper.properties
+                icu4j-71.1.jar
+                javax.json-1.1.4.jar
+                org.abego.treelayout.core-1.0.3.jar""", String.join("\n", files4));
+        } finally {
+            tmp2.delete();
+            tmp1.delete();
+        }
+    }
+
+    @Test
+    void testAddExtension()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        try {
+            new Wrapper().createWrapperFiles(tmp2, BldVersion.getVersion());
+
+            var hash_file = new File(tmp1, "wrapper.hash");
+            assertFalse(hash_file.exists());
+            var files1 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files1.size());
+            Collections.sort(files1);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files1));
+
+            var resolver1 = new WrapperExtensionResolver(tmp1, hash_file, tmp2, List.of(MAVEN_CENTRAL), List.of("org.antlr:antlr4:4.11.1"), false, false);
+            resolver1.updateExtensions();
+
+            assertTrue(hash_file.exists());
+            var files2 = FileUtils.getFileList(tmp2);
+            assertEquals(9, files2.size());
+            Collections.sort(files2);
+            assertEquals("""
+                ST4-4.3.4.jar
+                antlr-runtime-3.5.3.jar
+                antlr4-4.11.1.jar
+                antlr4-runtime-4.11.1.jar
+                bld-wrapper.jar
+                bld-wrapper.properties
+                icu4j-71.1.jar
+                javax.json-1.1.4.jar
+                org.abego.treelayout.core-1.0.3.jar""", String.join("\n", files2));
+
+            var resolver2 = new WrapperExtensionResolver(tmp1, hash_file, tmp2, List.of(MAVEN_CENTRAL), List.of("org.antlr:antlr4:4.11.1", "org.jsoup:jsoup:1.15.4"), false, false);
+            resolver2.updateExtensions();
+            var files3 = FileUtils.getFileList(tmp2);
+            assertEquals(10, files3.size());
+            Collections.sort(files3);
+            assertEquals("""
+                ST4-4.3.4.jar
+                antlr-runtime-3.5.3.jar
+                antlr4-4.11.1.jar
+                antlr4-runtime-4.11.1.jar
+                bld-wrapper.jar
+                bld-wrapper.properties
+                icu4j-71.1.jar
+                javax.json-1.1.4.jar
+                jsoup-1.15.4.jar
+                org.abego.treelayout.core-1.0.3.jar""", String.join("\n", files3));
+        } finally {
+            tmp2.delete();
+            tmp1.delete();
+        }
+    }
+
+    @Test
+    void testRemoveExtension()
+    throws Exception {
+        var tmp1 = Files.createTempDirectory("test1").toFile();
+        var tmp2 = Files.createTempDirectory("test2").toFile();
+        try {
+            new Wrapper().createWrapperFiles(tmp2, BldVersion.getVersion());
+
+            var hash_file = new File(tmp1, "wrapper.hash");
+            assertFalse(hash_file.exists());
+            var files1 = FileUtils.getFileList(tmp2);
+            assertEquals(2, files1.size());
+            Collections.sort(files1);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties""", String.join("\n", files1));
+
+            var resolver1 = new WrapperExtensionResolver(tmp1, hash_file, tmp2, List.of(MAVEN_CENTRAL), List.of("org.antlr:antlr4:4.11.1", "org.jsoup:jsoup:1.15.4"), false, false);
+            resolver1.updateExtensions();
+
+            assertTrue(hash_file.exists());
+            var files2 = FileUtils.getFileList(tmp2);
+            assertEquals(10, files2.size());
+            Collections.sort(files2);
+            assertEquals("""
+                ST4-4.3.4.jar
+                antlr-runtime-3.5.3.jar
+                antlr4-4.11.1.jar
+                antlr4-runtime-4.11.1.jar
+                bld-wrapper.jar
+                bld-wrapper.properties
+                icu4j-71.1.jar
+                javax.json-1.1.4.jar
+                jsoup-1.15.4.jar
+                org.abego.treelayout.core-1.0.3.jar""", String.join("\n", files2));
+
+            var resolver2 = new WrapperExtensionResolver(tmp1, hash_file, tmp2, List.of(MAVEN_CENTRAL), List.of("org.jsoup:jsoup:1.15.4"), false, false);
+            resolver2.updateExtensions();
+            var files3 = FileUtils.getFileList(tmp2);
+            assertEquals(3, files3.size());
+            Collections.sort(files3);
+            assertEquals("""
+                bld-wrapper.jar
+                bld-wrapper.properties
+                jsoup-1.15.4.jar""", String.join("\n", files3));
+        } finally {
+            tmp2.delete();
+            tmp1.delete();
+        }
+    }
+}