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Bug 341107

Summary:	Widget is disposed while opening a dialog
Product:	[Eclipse Project] Platform	Reporter:	Peter Severin <peter>
Component:	SWT	Assignee:	Platform-SWT-Inbox <platform-swt-inbox>
Status:	CLOSED INVALID	QA Contact:
Severity:	normal
Priority:	P3
Version:	3.6.1
Target Milestone:	---
Hardware:	Macintosh
OS:	Mac OS X - Carbon (unsup.)
Whiteboard:

Description Peter Severin

2011-03-28 10:02:21 EDT

Build Identifier: M20100909-0800

This error was reported by one of my customers who uses Eclipse 3.6.1 Carbon version on Mac OS X 10.6.7. I can provide more details if needed.

Here's the stacktrace:

org.eclipse.swt.SWTException: Widget is disposed
        at org.eclipse.swt.SWT.error(SWT.java:4083)
        at org.eclipse.swt.SWT.error(SWT.java:3998)
        at org.eclipse.swt.SWT.error(SWT.java:3969)
        at org.eclipse.swt.widgets.Widget.error(Widget.java:712)
        at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:346)
        at org.eclipse.swt.widgets.Composite.setFocus(Composite.java:1068)
        at org.eclipse.swt.widgets.Shell.kEventWindowActivated(Shell.java:1088)
        at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:2206)
        at org.eclipse.swt.widgets.Display.windowProc(Display.java:4431)
        at org.eclipse.swt.internal.carbon.OS.ShowWindow(Native Method)
        at org.eclipse.swt.widgets.Shell.setWindowVisible(Shell.java:1995)
        at org.eclipse.swt.widgets.Shell.setVisible(Shell.java:1935)
        at org.eclipse.swt.widgets.Shell.open(Shell.java:1424)
        at org.eclipse.jface.window.Window.open(Window.java:797)
        at com.wireframesketcher.ui.editors.screen.actions.ExportToPdfAction.void safeRun()(SourceFile:36)
        at com.wireframesketcher.ui.actions.SafeAction.void run()(SourceFile:27)
        at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
        at org.eclipse.ui.actions.RetargetAction.runWithEvent(RetargetAction.java:230)
        at org.eclipse.ui.internal.WWinPluginAction.runWithEvent(WWinPluginAction.java:234)
        at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
        at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
        at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:452)
        at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1669)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1693)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1678)
        at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1421)
        at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3657)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3240)
        at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
        at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
        at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
        at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
        at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
        at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
        at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
        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:369)
        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:620)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1408)


Reproducible: Couldn't Reproduce

Steps to Reproduce:
I tried to reproduce it on my machine but failed. Basically a toolbar item is cliked which invokes and action that open the dialog. Perhaps the stacktrace could give someone a hint.

Comment 1 Peter Severin

2011-04-08 10:25:00 EDT

It looks like the problem was caused by a mistake in overridden createDialogArea method. The method wasn't returning the top composite obtained from super.createDialogArea. Strangely enough there were no side effects of this on Linux and Windows.