java.lang.AssertionError: Wrong diagnostic handler: com.sun.tools.javac.util.Log$DeferredDiagnosticHandler@75c4b3a
Thread dump:
Inactive RequestProcessor thread [Was:org.netbeans.modules.parsing.spi.Scheduler/org.netbeans.modules.parsing.spi.Scheduler$2]
	java.lang.Object.wait(Native Method)
	org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1978)
SwingWorker-pool-67-thread-2
	sun.misc.Unsafe.park(Native Method)
	java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
	java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	java.lang.Thread.run(Thread.java:745)
SwingWorker-pool-67-thread-1
	sun.misc.Unsafe.par
   at com.sun.tools.javac.util.Assert.error(Assert.java:133)
   at com.sun.tools.javac.util.Assert.check(Assert.java:86)
   at com.sun.tools.javac.util.Log.popDiagnosticHandler(Log.java:481)
   at com.sun.tools.javac.api.JavacTaskImpl.attributeTree(JavacTaskImpl.java:765)
   at org.netbeans.api.java.source.TreeUtilities.attributeTree(TreeUtilities.java:663)
   at org.netbeans.modules.editor.java.JavaCodeTemplateProcessor.type(JavaCodeTemplateProcessor.java:698)
   at org.netbeans.modules.editor.java.JavaCodeTemplateProcessor.getProposedValue(JavaCodeTemplateProcessor.java:441)
   at org.netbeans.modules.editor.java.JavaCodeTemplateProcessor.updateDefaultValues(JavaCodeTemplateProcessor.java:158)
   at org.netbeans.lib.editor.codetemplates.CodeTemplateInsertHandler.processTemplate(CodeTemplateInsertHandler.java:248)
   at org.netbeans.lib.editor.codetemplates.CodeTemplateManagerOperation.insert(CodeTemplateManagerOperation.java:298)
   at org.netbeans.lib.editor.codetemplates.api.CodeTemplate.insert(CodeTemplate.java:107)
   at org.netbeans.modules.editor.java.JavaCompletionItem.process(JavaCompletionItem.java:518)
   at org.netbeans.modules.editor.java.JavaCompletionItem.defaultAction(JavaCompletionItem.java:283)
   at org.netbeans.modules.editor.java.LazyJavaCompletionItem.defaultAction(LazyJavaCompletionItem.java:147)
   at org.netbeans.modules.editor.java.JavaCompletionItem.instantSubstitution(JavaCompletionItem.java:351)
   at org.netbeans.modules.editor.java.JavaCompletionItem$WhiteListJavaCompletionItem.instantSubstitution(JavaCompletionItem.java:607)
   at org.netbeans.modules.editor.java.LazyJavaCompletionItem.instantSubstitution(LazyJavaCompletionItem.java:91)
   at org.netbeans.modules.editor.completion.CompletionImpl$8.run(CompletionImpl.java:1033)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:744)
   at java.awt.EventQueue.access$400(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:697)
   at java.awt.EventQueue$3.run(EventQueue.java:691)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:714)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)