java.lang.NullPointerException
   at org.netbeans.modules.maven.junit.ui.MavenJUnitTestMethodNode.getTestcaseFileObject(MavenJUnitTestMethodNode.java:140)
   at org.netbeans.modules.maven.junit.ui.MavenJUnitNodeOpener.openCallstackFrame(MavenJUnitNodeOpener.java:191)
   at org.netbeans.modules.java.testrunner.ui.api.UIJavaUtils.openCallstackFrame(UIJavaUtils.java:114)
   at org.netbeans.modules.java.testrunner.ui.api.JumpAction$1.run(JumpAction.java:95)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)