java.lang.NullPointerException
   at org.netbeans.modules.cnd.api.model.services.CsmVirtualInfoQuery.methodEquals(CsmVirtualInfoQuery.java:107)
   at org.netbeans.modules.cnd.api.model.services.CsmVirtualInfoQuery.access$100(CsmVirtualInfoQuery.java:68)
   at org.netbeans.modules.cnd.api.model.services.CsmVirtualInfoQuery$Empty.getOverriddenMethods(CsmVirtualInfoQuery.java:281)
   at org.netbeans.modules.cnd.navigation.overrides.ComputeAnnotations.computeAnnotation(ComputeAnnotations.java:115)
   at org.netbeans.modules.cnd.navigation.overrides.ComputeAnnotations.computeAnnotations(ComputeAnnotations.java:99)
   at org.netbeans.modules.cnd.navigation.overrides.ComputeAnnotations.computeAnnotations(ComputeAnnotations.java:90)
   at org.netbeans.modules.cnd.navigation.overrides.OverrideTaskFactory$PhaseRunnerImpl.addAnnotations(OverrideTaskFactory.java:171)
   at org.netbeans.modules.cnd.navigation.overrides.OverrideTaskFactory$PhaseRunnerImpl.run(OverrideTaskFactory.java:156)
   at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory$5.run(CsmFileTaskFactory.java:469)
   at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory$CsmSafeRunnable.run(CsmFileTaskFactory.java:486)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NullPointerException
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:433)
   at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory.post(CsmFileTaskFactory.java:340)
   at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory.stateChangedImpl(CsmFileTaskFactory.java:248)
   at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory.access$300(CsmFileTaskFactory.java:77)
   at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory$2.run(CsmFileTaskFactory.java:127)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1957)