java.lang.NullPointerException
at fi.helsinki.cs.tmc.data.ResultCollector.isSubmittable(ResultCollector.java:68)
at fi.helsinki.cs.tmc.data.ResultCollector.showAllResults(ResultCollector.java:46)
at fi.helsinki.cs.tmc.data.ResultCollector.setTestCaseResults(ResultCollector.java:40)
at fi.helsinki.cs.tmc.ui.TestResultDisplayer.displayTestCases(TestResultDisplayer.java:167)
at fi.helsinki.cs.tmc.ui.TestResultDisplayer.showSubmissionResult(TestResultDisplayer.java:45)
at fi.helsinki.cs.tmc.exerciseSubmitter.ExerciseSubmitter$1$1.bgTaskReady(ExerciseSubmitter.java:98)
at fi.helsinki.cs.tmc.exerciseSubmitter.ExerciseSubmitter$1$1.bgTaskReady(ExerciseSubmitter.java:89)
at fi.helsinki.cs.tmc.utilities.BgTask$4.run(BgTask.java:119)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:312)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:703)
at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
[catch] at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
https://github.com/testmycode/tmc-netbeans/blob/master/tmc-plugin/src/fi/helsinki/cs/tmc/data/ResultCollector.java#L68-L70