Eclipse RCP应用程序无法关闭，需在进程栏关闭

!ENTRY org.eclipse.ui 4 0 2012-03-14 14:31:17.718
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.NoClassDefFoundError: org/eclipse/ui/internal/WorkbenchWindow$5
    at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:858)
    at org.eclipse.jface.window.Window.handleShellCloseEvent(Window.java:741)
    at org.eclipse.jface.window.Window$3.shellClosed(Window.java:687)
    at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:98)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062)
    at org.eclipse.swt.widgets.Decorations.closeWidget(Decorations.java:308)
    at org.eclipse.swt.widgets.Decorations.WM_CLOSE(Decorations.java:1677)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4530)
    at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
    at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1610)
    at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2061)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4972)
    at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2525)
    at org.eclipse.swt.widgets.Shell.callWindowProc(Shell.java:498)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4623)
    at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
    at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1610)
    at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2061)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4972)
    at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2525)
    at org.eclipse.swt.widgets.Shell.callWindowProc(Shell.java:498)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4623)
    at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
    at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1610)
    at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2061)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4972)
    at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
    at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2530)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3752)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at com.geocompass.geosearch.Application.start(Application.java:56)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1410)

原因及改正方法：我重载ApplicationWorkbenchWindowAdvisor类的postWindowClose()，无意间注销了super.postWindowClose();方法。修改该方法时，确保先调用父类。

//    public void postWindowClose() {
//        // TODO Auto-generated method stub
//        super.postWindowClose();//是否注销此处导致无法关闭应用程序？？

//  }