Bugzilla – Full Text Bug Listing
| Summary: | AbstractHyperlink.handleActivate() causes "Widget is disposed" exception | ||
|---|---|---|---|
| Product: | [Eclipse Project] Platform | Reporter: | Konstantin Komissarchik <konstantin> |
| Component: | UI | Assignee: | Platform-UI-Inbox <Platform-UI-Inbox> |
| Status: | RESOLVED DUPLICATE | QA Contact: | |
| Severity: | major | ||
| Priority: | P3 | CC: | agarcher, caniszczyk, remy.suen |
| Version: | 3.4.2 | ||
| Target Milestone: | --- | ||
| Hardware: | PC | ||
| OS: | Windows XP | ||
| Whiteboard: | |||
This is a dupe and was fixed in 3.4.2, let me try to dig up the forms bug. (In reply to comment #1) > let me try to dig up the forms bug. Oh no you don't. *** This bug has been marked as a duplicate of bug 250505 *** Thanks for the triage all. :) |
Consider a hyperlink sitting on a detail section of a master-details form. When the hyperlink is selected, the listener disposes of the current details section and loads a new one. This scenario fails with Widget is disposed problem because handleActivate assumes that the hyperlink widget exists after hyperlink listeners have been called. Here is a snippet of relevant code from handleActivate. for (int i = 0; i < size; i++) { IHyperlinkListener listener = (IHyperlinkListener) listenerList[i]; listener.linkActivated(he); } if (!isDisposed()) setCursor(FormsResources.getHandCursor()); triggerAccessible(); The failure happens on triggerAccessible() call. Depending on what that call is supposed to do, it should either happen before hyperlink listeners are called or be covered by the !isDisposed() check. org.eclipse.swt.SWTException: Widget is disposed at org.eclipse.swt.SWT.error(SWT.java:3777) at org.eclipse.swt.SWT.error(SWT.java:3695) at org.eclipse.swt.SWT.error(SWT.java:3666) at org.eclipse.swt.widgets.Widget.error(Widget.java:463) at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:336) at org.eclipse.swt.widgets.Control.getAccessible(Control.java:1022) at org.eclipse.ui.forms.widgets.AbstractHyperlink.triggerAccessible(AbstractHyperlink.java:235) at org.eclipse.ui.forms.widgets.AbstractHyperlink.handleActivate(AbstractHyperlink.java:231) at org.eclipse.ui.forms.widgets.AbstractHyperlink.handleMouseUp(AbstractHyperlink.java:320) at org.eclipse.ui.forms.widgets.AbstractHyperlink.access$2(AbstractHyperlink.java:304) at org.eclipse.ui.forms.widgets.AbstractHyperlink$4.handleEvent(AbstractHyperlink.java:119) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193) 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:386) 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:549) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504) at org.eclipse.equinox.launcher.Main.run(Main.java:1236) at org.eclipse.equinox.launcher.Main.main(Main.java:1212)