java.lang.Exception: Stack trace
	at java.lang.Thread.dumpStack(Thread.java:1071)
	at org.openide.text.PositionRef$Manager$OutKind.<init>(PositionRef.java:514)
	at org.openide.text.PositionRef$Manager$PositionKind.fromMemory(PositionRef.java:491)
	at org.openide.text.PositionRef$Manager.processPositions(PositionRef.java:293)
	at org.openide.text.PositionRef$Manager.documentClosed(PositionRef.java:265)
	at org.openide.text.CloneableEditorSupport.doCloseDocument(CloneableEditorSupport.java:1326)
	at org.openide.text.CloneableEditorSupport.closeDocument(CloneableEditorSupport.java:1296)
	at org.openide.text.CloneableEditorSupport.notifyClosed(CloneableEditorSupport.java:1137)
	at org.openide.text.DataEditorSupport.notifyClosed(DataEditorSupport.java:208)
	at org.openide.text.EditorSupport$Del.superNotifyClosed(EditorSupport.java:552)
	at org.openide.text.EditorSupport.notifyClosed(EditorSupport.java:427)
	at org.netbeans.modules.java.JavaEditor.notifyClosed(JavaEditor.java:279)
	at org.openide.text.EditorSupport$Del.notifyClosed(EditorSupport.java:537)
	at org.openide.text.CloneableEditorSupport.close(CloneableEditorSupport.java:1271)
	at org.openide.text.EditorSupport$Del.superClose(EditorSupport.java:627)
	at org.openide.text.EditorSupport.close(EditorSupport.java:173)
	at org.openide.text.EditorSupport$Del.close(EditorSupport.java:623)
	at org.openide.windows.CloneableOpenSupport.close(CloneableOpenSupport.java:99)
	at org.openide.text.EditorSupport.close(EditorSupport.java:165)
	at org.netbeans.modules.java.JavaDataObject.updateSource(JavaDataObject.java:556)
	at org.netbeans.modules.java.JavaDataObject.updateSourceStart(JavaDataObject.java:486)
	at org.netbeans.modules.java.JavaDataObject.handleCreateFromTemplate(JavaDataObject.java:678)
	at org.openide.loaders.DataObject$7.run(DataObject.java:691)
	at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:89)
	at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:414)
	at org.openide.loaders.DataObjectPool.runAtomicAction(DataObjectPool.java:188)
	at org.openide.loaders.DataObject.invokeAtomicAction(DataObject.java:748)
	at org.openide.loaders.DataObject.createFromTemplate(DataObject.java:689)
	at org.netbeans.modules.java.ui.wizard.JavaWizardIterator.instantiateTemplate(JavaWizardIterator.java:271)
	at org.netbeans.modules.java.ui.wizard.JavaWizardIterator.instantiate(JavaWizardIterator.java:120)
	at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:513)
	at org.openide.loaders.TemplateWizard.instantiateImpl(TemplateWizard.java:438)
	at org.openide.loaders.TemplateWizard.instantiate(TemplateWizard.java:326)
	at org.openide.actions.NewTemplateAction.performAction(NewTemplateAction.java:113)
	at org.openide.util.actions.NodeAction.performAction(NodeAction.java:184)
	at org.netbeans.core.actions.NewTemplateCallableAction.performAction(NewTemplateCallableAction.java:85)
	at org.openide.util.actions.CallableSystemAction.actionPerformed(CallableSystemAction.java:69)
	at org.netbeans.core.ModuleActions$1.run(ModuleActions.java:97)
	at org.openide.util.Task.run(Task.java:136)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:330)
	at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:677)