Class collision between old jaxb2-basics-runtime and new one

[laurentschoelens]

We have same classes in same packages in both jaxb2-basics-runtime (the one with previous groupId and the one with the current one).

Since groupId differs, having the new one does not override the older one and it can leads to ClassCastException if all the classes are not loaded from the same jar.

We should provide a way to override the older one with maybe like an empty jar with older groupId to make sure all classes are defined only once

[laurentschoelens]

New project to handle this : https://github.com/laurentschoelens/jaxb2-basics-empty

[laurentschoelens]

Include empty like project (same as above) in main branch so we can then include it in v2.x

[laurentschoelens]

Adding the following in org.jvnet.jaxb:jaxb2-basics-runtime :

    <dependency>
      <groupId>org.jvnet.jaxb2_commons</groupId>
      <artifactId>jaxb2-basics-runtime</artifactId>
      <version>[4.0.0,9999.0)</version>
    </dependency>

and having a project including 2 projects, one with old runtime and one with new runtime as dependencies, result in the following mvn dependencies:tree

	Before	After
maven	[INFO] --- dependency:3.6.0:tree (default-cli) @ jaxb2-basics-test-po-mixed-runtime --- [INFO] org.jvnet.jaxb:jaxb2-basics-test-po-mixed-runtime:jar:2.0.10-SNAPSHOT [INFO] +- org.jvnet.jaxb:jaxb2-basics-test-po:jar:2.0.10-SNAPSHOT:compile [INFO] | +- org.jvnet.jaxb:jaxb2-basics-runtime:jar:2.0.10-SNAPSHOT:compile [INFO] | +- org.glassfish.jaxb:jaxb-runtime:jar:2.3.9:compile [INFO] | | +- jakarta.xml.bind:jakarta.xml.bind-api:jar:2.3.3:compile [INFO] | | +- org.glassfish.jaxb:txw2:jar:2.3.9:compile [INFO] | | \- com.sun.istack:istack-commons-runtime:jar:3.0.12:compile [INFO] | \- com.sun.activation:jakarta.activation:jar:1.2.2:compile [INFO] +- org.jvnet.jaxb:jaxb2-basics-test-po-old-runtime:jar:2.0.10-SNAPSHOT:compile [INFO] | \- org.jvnet.jaxb2_commons:jaxb2-basics-runtime:jar:0.13.1:compile [INFO] \- junit:junit:jar:4.13.2:test [INFO] \- org.hamcrest:hamcrest-core:jar:1.3:test	[INFO] --- dependency:3.6.0:tree (default-cli) @ jaxb2-basics-test-po-mixed-runtime --- [INFO] org.jvnet.jaxb:jaxb2-basics-test-po-mixed-runtime:jar:2.0.10-SNAPSHOT [INFO] +- org.jvnet.jaxb:jaxb2-basics-test-po:jar:2.0.10-SNAPSHOT:compile [INFO] | +- org.jvnet.jaxb:jaxb2-basics-runtime:jar:2.0.10-SNAPSHOT:compile [INFO] | | \- org.jvnet.jaxb2_commons:jaxb2-basics-runtime:jar:4.0.7-SNAPSHOT:compile [INFO] | +- org.glassfish.jaxb:jaxb-runtime:jar:2.3.9:compile [INFO] | | +- jakarta.xml.bind:jakarta.xml.bind-api:jar:2.3.3:compile [INFO] | | +- org.glassfish.jaxb:txw2:jar:2.3.9:compile [INFO] | | \- com.sun.istack:istack-commons-runtime:jar:3.0.12:compile [INFO] | \- com.sun.activation:jakarta.activation:jar:1.2.2:compile [INFO] +- org.jvnet.jaxb:jaxb2-basics-test-po-old-runtime:jar:2.0.10-SNAPSHOT:compile [INFO] \- junit:junit:jar:4.13.2:test [INFO] \- org.hamcrest:hamcrest-core:jar:1.3:test
gradle	compileClasspath - Compile classpath for source set 'main'. +--- org.jvnet.jaxb:jaxb2-basics-test-po:2.0.10-SNAPSHOT | +--- org.jvnet.jaxb:jaxb2-basics-runtime:2.0.10-SNAPSHOT | +--- org.glassfish.jaxb:jaxb-runtime:2.3.9 | | +--- jakarta.xml.bind:jakarta.xml.bind-api:2.3.3 | | +--- org.glassfish.jaxb:txw2:2.3.9 | | \--- com.sun.istack:istack-commons-runtime:3.0.12 | \--- com.sun.activation:jakarta.activation:1.2.2 \--- org.jvnet.jaxb:jaxb2-basics-test-po-old-runtime:2.0.10-SNAPSHOT +--- org.jvnet.jaxb2_commons:jaxb2-basics-runtime:0.13.1 +--- org.glassfish.jaxb:jaxb-runtime:2.3.9 (*) +--- org.jvnet.jaxb:jaxb2-basics-runtime:2.0.10-SNAPSHOT \--- com.sun.activation:jakarta.activation:1.2.2	compileClasspath - Compile classpath for source set 'main'. +--- org.jvnet.jaxb:jaxb2-basics-test-po:2.0.10-SNAPSHOT | +--- org.jvnet.jaxb:jaxb2-basics-runtime:2.0.10-SNAPSHOT | | \--- org.jvnet.jaxb2_commons:jaxb2-basics-runtime:[4.0.0,9999.0) -> 4.0.7-SNAPSHOT | +--- org.glassfish.jaxb:jaxb-runtime:2.3.9 | | +--- jakarta.xml.bind:jakarta.xml.bind-api:2.3.3 | | +--- org.glassfish.jaxb:txw2:2.3.9 | | \--- com.sun.istack:istack-commons-runtime:3.0.12 | \--- com.sun.activation:jakarta.activation:1.2.2 \--- org.jvnet.jaxb:jaxb2-basics-test-po-old-runtime:2.0.10-SNAPSHOT +--- org.jvnet.jaxb2_commons:jaxb2-basics-runtime:0.13.1 -> 4.0.7-SNAPSHOT +--- org.glassfish.jaxb:jaxb-runtime:2.3.9 (*) +--- org.jvnet.jaxb:jaxb2-basics-runtime:2.0.10-SNAPSHOT (*) \--- com.sun.activation:jakarta.activation:1.2.2