java.lang.IllegalStateException: [Winsys] TopComponent org.netbeans.modules.java.JavaEditor$JavaEditorComponent[ImageCacheManager.java,1,0,1052x659,layout=java.awt.BorderLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=256,maximumSize=,minimumSize=,preferredSize=] throws runtime exception from its componentDeactivated() method. Repair it!
[catch] at org.openide.windows.WindowManager.activateComponent(WindowManager.java:234)
	at org.openide.windows.WindowManager.componentCloseNotify(WindowManager.java:297)
	at org.netbeans.core.windows.WindowManagerImpl.notifyTopComponentClosed(WindowManagerImpl.java:893)
	at org.netbeans.core.windows.Central.removeModeTopComponent(Central.java:769)
	at org.netbeans.core.windows.ModeImpl.removeTopComponent(ModeImpl.java:336)
	at org.netbeans.core.windows.ModeImpl.close(ModeImpl.java:218)
	at org.netbeans.core.windows.WindowManagerImpl.topComponentClose(WindowManagerImpl.java:995)
	at org.openide.windows.TopComponent.close(TopComponent.java:339)
	at org.openide.windows.TopComponent.close(TopComponent.java:326)
	at org.netbeans.core.windows.actions.ActionUtils.closeWindow(ActionUtils.java:237)
	at org.netbeans.core.windows.actions.CloseWindowAction.actionPerformed(CloseWindowAction.java:60)
	at org.openide.windows.TopComponent.processKeyBinding(TopComponent.java:800)
	at javax.swing.JComponent.processKeyBindings(JComponent.java:2809)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:2726)
	at java.awt.Component.processEvent(Component.java:5265)
	at java.awt.Container.processEvent(Container.java:1966)
	at java.awt.Component.dispatchEventImpl(Component.java:3955)
	at java.awt.Container.dispatchEventImpl(Container.java:2024)
	at java.awt.Component.dispatchEvent(Component.java:3803)
	at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1810)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:672)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:920)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:798)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:636)
	at java.awt.Component.dispatchEventImpl(Component.java:3841)
	at java.awt.Container.dispatchEventImpl(Container.java:2024)
	at java.awt.Window.dispatchEventImpl(Window.java:1774)
	at java.awt.Component.dispatchEvent(Component.java:3803)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
==>
java.lang.NullPointerException
	at org.netbeans.modules.java.JavaEditor.stopTimerIfPossible(JavaEditor.java:361)
	at org.netbeans.modules.java.JavaEditor.access$1500(JavaEditor.java:88)
	at org.netbeans.modules.java.JavaEditor$JavaEditorComponent.componentDeactivated(JavaEditor.java:1486)
[catch] at org.openide.windows.WindowManager.activateComponent(WindowManager.java:232)
	at org.openide.windows.WindowManager.componentCloseNotify(WindowManager.java:297)
	at org.netbeans.core.windows.WindowManagerImpl.notifyTopComponentClosed(WindowManagerImpl.java:893)
	at org.netbeans.core.windows.Central.removeModeTopComponent(Central.java:769)
	at org.netbeans.core.windows.ModeImpl.removeTopComponent(ModeImpl.java:336)
	at org.netbeans.core.windows.ModeImpl.close(ModeImpl.java:218)
	at org.netbeans.core.windows.WindowManagerImpl.topComponentClose(WindowManagerImpl.java:995)
	at org.openide.windows.TopComponent.close(TopComponent.java:339)
	at org.openide.windows.TopComponent.close(TopComponent.java:326)
	at org.netbeans.core.windows.actions.ActionUtils.closeWindow(ActionUtils.java:237)
	at org.netbeans.core.windows.actions.CloseWindowAction.actionPerformed(CloseWindowAction.java:60)
	at org.openide.windows.TopComponent.processKeyBinding(TopComponent.java:800)
	at javax.swing.JComponent.processKeyBindings(JComponent.java:2809)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:2726)
	at java.awt.Component.processEvent(Component.java:5265)
	at java.awt.Container.processEvent(Container.java:1966)
	at java.awt.Component.dispatchEventImpl(Component.java:3955)
	at java.awt.Container.dispatchEventImpl(Container.java:2024)
	at java.awt.Component.dispatchEvent(Component.java:3803)
	at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1810)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:672)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:920)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:798)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:636)
	at java.awt.Component.dispatchEventImpl(Component.java:3841)
	at java.awt.Container.dispatchEventImpl(Container.java:2024)
	at java.awt.Window.dispatchEventImpl(Window.java:1774)
	at java.awt.Component.dispatchEvent(Component.java:3803)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)