The "Invoke top-level Maven targets" pre-build step is broken when using Maven 3.3.1. The cause appears to be in hudson.tasks.Maven$DecideDefaultMavenCommand, which automatically appends ".bat" if running on Windows. In Maven 3.3.1, mvn.bat was renamed to mvn.cmd.

Obviously this could be fixed but it might be a better idea to move this functionality to the Maven Plugin, which has more sophisticated Maven handling and works fine with 3.3.1.