Hello,
I have an issue with the snap-engine-coverage module.
It causes the problem when running mvn clean package install on snap-engine or the module itself:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-jar-plugin:3.4.0:jar (default-jar) on project snap-engine-coverage: You have to use a classifier to attach supplemental artifacts to the project instead of replacing them. -> [Help 1]
It does not have any source code. Maybe it should be removed? The issue occurs on branch 12.x and master.
When I remove the module from snap-engine everything works.