Using maven 3.8.2 building walkingkooka-spreadsheet UNPACK fails to traverse sources for java.time

[mP1]

[INFO] [INFO]       Destination
[INFO] [INFO]         /home/runner/work/walkingkooka-spreadsheet-server/walkingkooka-spreadsheet-server/target/it-tests/junit-test/target/walkingkooka-j2cl-maven-plugin-cache/walkingkooka--j2cl-java-time--jar--1.0-SNAPSHOT-8c2b358bded5f4fbf98c762f4e4f6af5a0f5ad26/1-unpack/output

[INFO] [INFO]       Source root(s)
[INFO] [DEBUG]           /home/runner/work/walkingkooka-spreadsheet-server/walkingkooka-spreadsheet-server/target/it-repo/walkingkooka/j2cl-java-time
[INFO] [DEBUG]             1.0-SNAPSHOT
[INFO] [INFO]         1 file(s)

[INFO] [INFO]       Unpacking...

The sources listing should include the jar file but the parent directory is returned instead, which means UNPACK continue nd rather than unpacking the java files etc, ends up with nothing, which eventually means the source is lost.

O] [INFO]       Destination
[INFO] [INFO]         /Users/miroslav/repos-github/walkingkooka-spreadsheet-server/target/it-tests/junit-test/target/walkingkooka-j2cl-maven-plugin-cache/walkingkooka--j2cl-java-time--jar--1.0-SNAPSHOT-18c20528db0f2a2b191c05fc52607e9223bc61df/1-unpack/output
[INFO] [INFO]       Source root(s)
[INFO] [DEBUG]           /Users/miroslav/repos-github/walkingkooka-spreadsheet-server/target/it-repo/walkingkooka/j2cl-java-time/1.0-SNAPSHOT
[INFO] [DEBUG]             j2cl-java-time-1.0-SNAPSHOT.jar
[INFO] [INFO]         1 file(s)
[INFO] [INFO]       Unpacking...
[INFO] [INFO]         /Users/miroslav/repos-github/walkingkooka-spreadsheet-server/target/it-repo/walkingkooka/j2cl-java-time/1.0-SNAPSHOT/j2cl-java-time-1.0-SNAPSHOT.jar
[INFO] [INFO]           Extracting