[EXPERIMENT] Expose depMgr to use with Maven

[cstamas]

We have 3 of them, but we use always "classic" that behaves like Maven2 (with all it's shortocomings!).

Changes:

• change default depMgr Maven uses from "classic" to "default"
• expose config for all 3 of them

This is just an experiment for issues like:

• https://issues.apache.org/jira/browse/MRESOLVER-235
• https://issues.apache.org/jira/browse/MNG-7003 (using reproducer from it)

Adds -Dmaven.resolver.dependencyManager param with accepted values "classic" (the default every Maven3 used so far), "default" and "transitive".

Values are:

• "classic" (default in all Maven 3.x releases so far) org.eclipse.aether.util.graph.manager.ClassicDependencyManager
• "default" (never used) org.eclipse.aether.util.graph.manager.DefaultDependencyManager
• "transitive" (never used) org.eclipse.aether.util.graph.manager.TransitiveDependencyManager

Reproducer output with 3 of them:

[cstamas@urnebes usage]$ mvn dependency:tree -Dmaven.resolver.dependencyManager=transitive
[INFO] Scanning for projects...
[INFO] 
[INFO] ---------------------< arcomp.maven_example:usage >---------------------
[INFO] Building usage 1
[INFO]   from pom.xml
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- dependency:2.8:tree (default-cli) @ usage ---
[INFO] arcomp.maven_example:usage:jar:1
[INFO] \- arcomp.maven_example:module:jar:1:compile
[INFO]    \- org.apache.logging.log4j:log4j-slf4j18-impl:jar:2.13.3:compile
[INFO]       +- org.slf4j:slf4j-api:jar:1.7.30:compile
[INFO]       +- org.apache.logging.log4j:log4j-api:jar:2.13.3:compile
[INFO]       \- org.apache.logging.log4j:log4j-core:jar:2.13.3:runtime
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.764 s
[INFO] Finished at: 2023-02-16T12:58:22+01:00
[INFO] ------------------------------------------------------------------------
[cstamas@urnebes usage]$ mvn dependency:tree -Dmaven.resolver.dependencyManager=default
[INFO] Scanning for projects...
[INFO] 
[INFO] ---------------------< arcomp.maven_example:usage >---------------------
[INFO] Building usage 1
[INFO]   from pom.xml
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- dependency:2.8:tree (default-cli) @ usage ---
[INFO] arcomp.maven_example:usage:jar:1
[INFO] \- arcomp.maven_example:module:jar:1:compile
[INFO]    \- org.apache.logging.log4j:log4j-slf4j18-impl:jar:2.13.3:compile
[INFO]       +- org.slf4j:slf4j-api:jar:1.7.30:compile
[INFO]       +- org.apache.logging.log4j:log4j-api:jar:2.13.3:compile
[INFO]       \- org.apache.logging.log4j:log4j-core:jar:2.13.3:runtime
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.643 s
[INFO] Finished at: 2023-02-16T12:58:27+01:00
[INFO] ------------------------------------------------------------------------
[cstamas@urnebes usage]$ mvn dependency:tree -Dmaven.resolver.dependencyManager=classic
[INFO] Scanning for projects...
[INFO] 
[INFO] ---------------------< arcomp.maven_example:usage >---------------------
[INFO] Building usage 1
[INFO]   from pom.xml
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- dependency:2.8:tree (default-cli) @ usage ---
[INFO] arcomp.maven_example:usage:jar:1
[INFO] \- arcomp.maven_example:module:jar:1:compile
[INFO]    \- org.apache.logging.log4j:log4j-slf4j18-impl:jar:2.13.3:compile
[INFO]       +- org.slf4j:slf4j-api:jar:1.8.0-beta4:compile                  <!-- BAD
[INFO]       +- org.apache.logging.log4j:log4j-api:jar:2.13.3:compile
[INFO]       \- org.apache.logging.log4j:log4j-core:jar:2.13.3:runtime
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.671 s
[INFO] Finished at: 2023-02-16T12:58:32+01:00
[INFO] ------------------------------------------------------------------------
[cstamas@urnebes usage]$ mvn dependency:tree                       <---- this PR changes to "transitive"
[INFO] Scanning for projects...
[INFO] 
[INFO] ---------------------< arcomp.maven_example:usage >---------------------
[INFO] Building usage 1
[INFO]   from pom.xml
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- dependency:2.8:tree (default-cli) @ usage ---
[INFO] arcomp.maven_example:usage:jar:1
[INFO] \- arcomp.maven_example:module:jar:1:compile
[INFO]    \- org.apache.logging.log4j:log4j-slf4j18-impl:jar:2.13.3:compile
[INFO]       +- org.slf4j:slf4j-api:jar:1.7.30:compile
[INFO]       +- org.apache.logging.log4j:log4j-api:jar:2.13.3:compile
[INFO]       \- org.apache.logging.log4j:log4j-core:jar:2.13.3:runtime
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.662 s
[INFO] Finished at: 2023-02-16T12:58:39+01:00
[INFO] ------------------------------------------------------------------------
[cstamas@urnebes usage]$ 

[cstamas]

locally ran Maven 3.9.x w/PR in IT suite with different depMgrs as default:
"default":

[ERROR] Failures: 
[ERROR]   MavenIT0011DefaultVersionByDependencyManagementTest.testit0011:61->AbstractMavenIntegrationTestCase.assertTrue:693 [org.apache.maven.its.it0011:a:jar:0.1] ==> expected: <true> but was: <false>
[ERROR]   MavenITmng4720DependencyManagementExclusionMergeTest.testit:74->AbstractMavenIntegrationTestCase.assertTrue:693 [classes, a-0.1.jar, c-0.1.jar] ==> expected: <true> but was: <false>
[ERROR] Errors: 
[ERROR]   MavenIT0199CyclicImportScopeTest.testit0199:43->build:54 » Verification Exit code was non-zero: 1; command line and log = 
[ERROR]   MavenITmng3259DepsDroppedInMultiModuleBuildTest.testitMNG3259:66 » Verification Exit code was non-zero: 1; command line and log =
[INFO] 
[ERROR] Tests run: 885, Failures: 2, Errors: 2, Skipped: 80

Errors are compilation errors in ITs, hence this depMgr did not do everything as expected.

"transitive":

[ERROR] Failures: 
[ERROR]   MavenITmng4720DependencyManagementExclusionMergeTest.testit:74->AbstractMavenIntegrationTestCase.assertTrue:693 [classes, a-0.1.jar, c-0.1.jar] ==> expected: <true> but was: <false>
[INFO] 
[ERROR] Tests run: 885, Failures: 1, Errors: 0, Skipped: 80

This IT for issue https://issues.apache.org/jira/browse/MNG-4720 tests exactly was issue https://issues.apache.org/jira/browse/MNG-7003 is about (and is Maven2 way, differently resolves project and dependencies).

[cstamas]

Superseded by #1357