Unhandled event loop exception

湖欞 2013-01-14 05:30:21

我的工程中打开了两个级联的dialog，点右上角的红叉来关闭两个dialog时，会有下面的问题，还不能debug，debug就不会出现这个问题，有出现过的帮帮忙看下，谢谢！

!ENTRY org.eclipse.ui 4 0 2013-01-14 17:23:10.240
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.NullPointerException
at org.eclipse.draw2d.SWTEventDispatcher.dispatchMousePressed(SWTEventDispatcher.java:243)
at org.eclipse.draw2d.LightweightSystem$EventHandler.mouseDown(LightweightSystem.java:523)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:191)
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.Display.runDeferredEvents(Display.java:4165)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at com.csair.soc.tripedit.application.Application.start(Application.java:33)
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)
at org.eclipse.equinox.launcher.Main.main(Main.java:1386)

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湖欞 2013-01-24

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解决了，不是dialog自身的问题，是两个dialog的背后的主窗体的问题：我在叉掉主窗体上面的两个dialog里，主窗体也有监听被触发，而我的主窗体没有监听器，所以出现了nullpoint异常。处理办法： addMouseListener(new MouseListener() { @Override public void mouseReleased(MouseEvent mouseevent) { } @Override public void mousePressed(MouseEvent mouseevent) { } @Override public void mouseDoubleClicked(MouseEvent mouseevent) { } });