java.lang.NullPointerException
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NullPointerException
   at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1465)
   at org.netbeans.modules.web.wicket.verification.WicketProblemAnnotationProvider$ScanningDocumentListener.restartTimer(WicketProblemAnnotationProvider.java:542)
   at org.netbeans.modules.web.wicket.verification.WicketProblemAnnotationProvider$ScanningDocumentListener.change(WicketProblemAnnotationProvider.java:537)
   at org.netbeans.modules.web.wicket.verification.WicketProblemAnnotationProvider$ScanningDocumentListener.insertUpdate(WicketProblemAnnotationProvider.java:501)
   at org.netbeans.lib.editor.util.swing.PriorityDocumentListenerList.insertUpdate(PriorityDocumentListenerList.java:85)
   at javax.swing.text.AbstractDocument.fireInsertUpdate(AbstractDocument.java:185)
   at org.netbeans.editor.BaseDocument.fireInsertUpdate(BaseDocument.java:1656)
   at org.netbeans.editor.BaseDocument.insertString(BaseDocument.java:822)
   at org.netbeans.modules.editor.java.JavaCompletionItem$1.run(JavaCompletionItem.java:429)
   at org.netbeans.editor.GuardedDocument.runAtomic(GuardedDocument.java:314)
   at org.netbeans.modules.editor.java.JavaCompletionItem.substituteText(JavaCompletionItem.java:415)
   at org.netbeans.modules.editor.java.JavaCompletionItem$MethodItem.substituteText(JavaCompletionItem.java:1577)
   at org.netbeans.modules.editor.java.JavaCompletionItem.defaultAction(JavaCompletionItem.java:268)
   at org.netbeans.modules.editor.completion.CompletionImpl.dispatchKeyEvent(CompletionImpl.java:655)
   at org.netbeans.modules.editor.completion.CompletionImpl.keyPressed(CompletionImpl.java:384)
   at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:233)
   at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:232)
   at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:232)
   at java.awt.Component.processKeyEvent(Component.java:6246)
   at javax.swing.JComponent.processKeyEvent(JComponent.java:2801)
   at java.awt.Component.processEvent(Component.java:6065)
   at java.awt.Container.processEvent(Container.java:2041)
   at java.awt.Component.dispatchEventImpl(Component.java:4651)
   at java.awt.Container.dispatchEventImpl(Container.java:2099)
   at java.awt.Component.dispatchEvent(Component.java:4481)
   at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1850)
   at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:712)
   at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:990)
   at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:855)
   at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:676)
   at java.awt.Component.dispatchEventImpl(Component.java:4523)
   at java.awt.Container.dispatchEventImpl(Container.java:2099)
   at java.awt.Window.dispatchEventImpl(Window.java:2478)
   at java.awt.Component.dispatchEvent(Component.java:4481)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:643)
   at java.awt.EventQueue.access$000(EventQueue.java:84)
   at java.awt.EventQueue$1.run(EventQueue.java:602)
   at java.awt.EventQueue$1.run(EventQueue.java:600)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
   at java.awt.EventQueue$2.run(EventQueue.java:616)
   at java.awt.EventQueue$2.run(EventQueue.java:614)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:613)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:153)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)