As discussed on Pipeline SIG meeting in Java 11 hackathon in Nice, the pipelines resumed just after plugin upgrade that brings in new version of jboss marshalling will be aborted.

However, it would be good to clearly indicate those pipelines failed for this very reason instead of presenting big and scary exception to the end users. I know there will be warnings everywhere but people tend to overlook things like that. Putting aside warnings will be presented to instance admins while the failed builds to instance users.