I would recommend doing journalctl -u jenkins.service -e -n 100 to get the last 100 lines (-e) and goto the end of the log (e) of the jenkins service (-u) since you have lots of other noise in what you posted.
I would recommend doing journalctl -u jenkins.service -e -n 100 to get the last 100 lines (-e) and goto the end of the log (e) of the jenkins service (-u) since you have lots of other noise in what you posted.