java.lang.AssertionError
   at org.netbeans.modules.cnd.modelimpl.repository.OffsetableKey.compareTo(OffsetableKey.java:188)
   at org.netbeans.modules.cnd.modelimpl.repository.OffsetableKey.compareTo(OffsetableKey.java:60)
   at org.netbeans.modules.cnd.modelimpl.uid.KeyBasedUID.compareTo(KeyBasedUID.java:121)
   at org.netbeans.modules.cnd.modelimpl.uid.KeyBasedUID.compareTo(KeyBasedUID.java:60)
   at org.netbeans.modules.cnd.modelimpl.csm.core.FileComponentInstantiations$2.compare(FileComponentInstantiations.java:181)
   at org.netbeans.modules.cnd.modelimpl.csm.core.FileComponentInstantiations$2.compare(FileComponentInstantiations.java:171)
   at java.util.TreeMap.put(TreeMap.java:530)
   at java.util.TreeSet.add(TreeSet.java:238)
   at org.netbeans.modules.cnd.modelimpl.csm.core.FileComponentInstantiations.addInstantiation(FileComponentInstantiations.java:125)
   at org.netbeans.modules.cnd.modelimpl.csm.core.FileImpl.addInstantiation(FileImpl.java:1223)
   at org.netbeans.modules.cnd.modelimpl.csm.Instantiation.create(Instantiation.java:280)
   at org.netbeans.modules.cnd.modelimpl.impl.services.InstantiationProviderImpl.instantiate(InstantiationProviderImpl.java:137)
   at org.netbeans.modules.cnd.modelimpl.csm.NestedType.getClassifier(NestedType.java:134)
   at org.netbeans.modules.cnd.modelimpl.csm.TypeImpl.isTemplateBased(TypeImpl.java:305)
   at org.netbeans.modules.cnd.modelimpl.csm.NestedType.isTemplateBased(NestedType.java:200)
   at org.netbeans.modules.cnd.modelimpl.csm.Instantiation$Type.isTemplateBased(Instantiation.java:1337)
   at org.netbeans.modules.cnd.modelimpl.csm.Instantiation$Type.isTemplateBased(Instantiation.java:1324)
   at org.netbeans.modules.cnd.modelimpl.csm.TypeBasedSpecializationParameterImpl.isTemplateBased(TypeBasedSpecializationParameterImpl.java:147)
   at org.netbeans.modules.cnd.api.model.services.CsmFileReferences.isActualInstantiation(CsmFileReferences.java:268)
   at org.netbeans.modules.cnd.api.model.services.CsmFileReferences.hasTemplateBasedAncestors(CsmFileReferences.java:239)
   at org.netbeans.modules.cnd.api.model.services.CsmFileReferences.hasTemplateBasedAncestors(CsmFileReferences.java:227)
   at org.netbeans.modules.cnd.api.model.services.CsmFileReferences.hasTemplateBasedAncestors(CsmFileReferences.java:216)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery$Context.resolveItem(CsmCompletionQuery.java:2180)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery$Context.resolveParams(CsmCompletionQuery.java:1096)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery$Context.resolveExp(CsmCompletionQuery.java:1128)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery.getResult(CsmCompletionQuery.java:349)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery.query(CsmCompletionQuery.java:330)
   at org.netbeans.modules.cnd.completion.csm.CompletionUtilities.findItemsReferencedAtCaretPos(CompletionUtilities.java:154)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findDeclaration(ReferencesSupport.java:388)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findDeclaration(ReferencesSupport.java:344)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findReferencedObject(ReferencesSupport.java:232)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferenceImpl.getReferencedObject(ReferenceImpl.java:103)
   at org.netbeans.modules.cnd.highlight.semantic.MarkOccurrencesHighlighter.getOccurrences(MarkOccurrencesHighlighter.java:268)
   at org.netbeans.modules.cnd.highlight.semantic.MarkOccurrencesHighlighter.runImpl(MarkOccurrencesHighlighter.java:209)
   at org.netbeans.modules.cnd.highlight.semantic.MarkOccurrencesHighlighter.run(MarkOccurrencesHighlighter.java:148)
   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.AssertionError
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:454)
   at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory.post(CsmFileTaskFactory.java:338)
   at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory._runTask(CsmFileTaskFactory.java:333)
   at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory.runTask(CsmFileTaskFactory.java:300)
   at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory.runAllTasks(CsmFileTaskFactory.java:272)
   at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory.access$1100(CsmFileTaskFactory.java:77)
   at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory$ProgressListener$3.run(CsmFileTaskFactory.java:371)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)