Packages are getting deployed

[Aklakan]

mvn clean install deploy
results in:

[INFO] rmltk-pkg-deb-cli .................................................................................... FAILURE [  0.527 s]

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-jar-plugin:3.3.0:jar (default-jar) on project rmltk-pkg-deb-cli: You have to use a classifier to attach supplemental artifacts to the project instead of replacing them. -> [Help 1]

The error occasionally appears in other projects, so investigating the culprit for it is worthwhile.
But for this project, packages (debian, rpm, uberjar) should not be deployed in the first place.