All downstream projects complete!
ERROR: Build step failed with exception
java.lang.NullPointerException
	at hudson.model.Result.isWorseThan(Result.java:118)
	at join.JoinAction.checkPendingDownstream(JoinAction.java:84)
	at join.JoinTrigger.perform(JoinTrigger.java:122)
	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:779)
	at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:720)
	at hudson.model.Build$BuildExecution.post2(Build.java:185)
	at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:665)
	at hudson.model.Run.execute(Run.java:1766)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
	at hudson.model.ResourceController.execute(ResourceController.java:98)
	at hudson.model.Executor.run(Executor.java:410)
Build step 'Join Trigger' marked build as failure
Robot results publisher started...
-Parsing output xml:
Done!
-Copying log files to build dir:
Done!
-Assigning results to build:
Done!
-Checking thresholds:
Done!