I cannot add the JaCoCo post-build action to any job. Nothing happens when I invoke the entry in the post-build action menu of the job configuration.
Also, nothing is logged when I do this.
Yesterday I cloned the jacoco-plugin github repo to verify the problem. After starting jenkins with mvn hpi:run and creating a test-job, configuring the jacoco plugin worked just fine.
So I went again to the our testing server, upgraded some other plugins, restarted the server and this time, the jacoco configuration worked as well. So I'm not sure what caused the hickup, but it's gone now, at least for me.
FWIW, when testing locally with mvn hpi:run, I tried once with the currently set jenkins target version 1.424.6 and another time with version 1488. It worked with both.
Thank you for the feedback Carsten!