java.lang.NoClassDefFoundError: org/openide/util/actions/CallableSystemAction$1
   at org.openide.util.actions.CallableSystemAction.actionPerformed(CallableSystemAction.java:126)
   at org.netbeans.modules.editor.NbEditorKit$NbUndoAction.actionPerformed(NbEditorKit.java:570)
   at org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:339)
   at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1639)
   at javax.swing.JComponent.processKeyBinding(JComponent.java:2859)
   at javax.swing.JComponent.processKeyBindings(JComponent.java:2894)
   at javax.swing.JComponent.processKeyEvent(JComponent.java:2822)
   at java.awt.Component.processEvent(Component.java:6074)
   at java.awt.Container.processEvent(Container.java:2039)
   at java.awt.Component.dispatchEventImpl(Component.java:4660)
   at java.awt.Container.dispatchEventImpl(Container.java:2097)
   at java.awt.Component.dispatchEvent(Component.java:4488)
   at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1856)
   at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:722)
   at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1000)
   at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:865)
   at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:686)
   at java.awt.Component.dispatchEventImpl(Component.java:4532)
   at java.awt.Container.dispatchEventImpl(Container.java:2097)
   at java.awt.Window.dispatchEventImpl(Window.java:2489)
   at java.awt.Component.dispatchEvent(Component.java:4488)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:674)
   at java.awt.EventQueue.access$400(EventQueue.java:81)
   at java.awt.EventQueue$2.run(EventQueue.java:633)
   at java.awt.EventQueue$2.run(EventQueue.java:631)
   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$3.run(EventQueue.java:647)
   at java.awt.EventQueue$3.run(EventQueue.java:645)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:644)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:162)
   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)