javax.swing.undo.CannotUndoException
   at org.netbeans.editor.BaseDocumentEvent.undo(BaseDocumentEvent.java:268)
   at org.netbeans.editor.GuardedDocumentEvent.undo(GuardedDocumentEvent.java:72)
   at org.netbeans.modules.editor.lib2.document.StableCompoundEdit.undo(StableCompoundEdit.java:93)
   at org.netbeans.editor.BaseDocument$AtomicCompoundEdit.undo(BaseDocument.java:2196)
   at org.netbeans.editor.BaseDocument.undoAtomicEdits(BaseDocument.java:2114)
   at org.netbeans.editor.BaseDocument.breakAtomicLock(BaseDocument.java:1800)
   at org.netbeans.editor.GuardedDocument.runAtomicAsUser(GuardedDocument.java:357)
   at org.openide.text.NbDocument.runAtomicAsUser(NbDocument.java:462)
   at org.netbeans.modules.editor.EditorModule.reformat(EditorModule.java:580)
   at org.netbeans.modules.editor.EditorModule.access$100(EditorModule.java:105)
   at org.netbeans.modules.editor.EditorModule$4.operationCreateFromTemplate(EditorModule.java:260)
   at org.openide.loaders.DataLoaderPool.fireOperationEvent(DataLoaderPool.java:240)
   at org.openide.loaders.DataObject.fireOperationEvent(DataObject.java:951)
   at org.openide.loaders.DataObject.createFromTemplate(DataObject.java:924)
   at org.netbeans.modules.web.client.rest.wizard.JSClientIterator.createHtml(JSClientIterator.java:362)
   at org.netbeans.modules.web.client.rest.wizard.JSClientIterator.instantiate(JSClientIterator.java:255)
   at org.openide.loaders.TemplateWizard$InstantiatingIteratorBridge.instantiate(TemplateWizard.java:1044)
   at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:605)
   at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:439)
   at org.openide.loaders.TemplateWizardIterImpl.instantiate(TemplateWizardIterImpl.java:253)
   at org.openide.loaders.TemplateWizardIteratorWrapper$ProgressInstantiatingIterator.instantiate(TemplateWizardIteratorWrapper.java:180)
   at org.openide.WizardDescriptor.callInstantiateOpen(WizardDescriptor.java:1626)
   at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1570)
   at org.openide.WizardDescriptor.access$2300(WizardDescriptor.java:92)
   at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:2257)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)