deployment plugin does not show any error message when the war file does not exist

I installed Jenkins and the deploy plugin, created an empty build job with the "deploy" checkbox checked, entered an invalid war file, ran the job, and nothing happened - the console output says "SUCCESS" although there is certainly an error.

This is a major issue for me, because even when I try to deploy an existing war file, nothing happens and I get the same "SUCCESS" message. An error message is essential in solving this issue.