[jbosstools-issues] [JBoss JIRA] (JBIDE-17528) 'Widget is disposed' exception in JBoss Central

[Fred Bricon (JIRA)]

     [ https://issues.jboss.org/browse/JBIDE-17528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fred Bricon updated JBIDE-17528:
--------------------------------

    Labels: respin-b  (was: )


> 'Widget is disposed' exception in JBoss Central
> -----------------------------------------------
>
>                 Key: JBIDE-17528
>                 URL: https://issues.jboss.org/browse/JBIDE-17528
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: central
>    Affects Versions: 4.2.0.Beta2
>            Reporter: Denis Golovin
>            Priority: Minor
>              Labels: respin-b
>             Fix For: 4.2.0.Beta2
>
>
> {code}org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTException: Widget is disposed)
> 	at org.eclipse.swt.SWT.error(SWT.java:4441)
> 	at org.eclipse.swt.SWT.error(SWT.java:4356)
> 	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:139)
> 	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3781)
> 	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3419)
> 	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1152)
> 	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
> 	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1033)
> 	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
> 	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:635)
> 	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
> 	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:578)
> 	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
> 	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)
> 	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
> 	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
> 	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
> 	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:379)
> 	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:233)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
> 	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
> 	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
> 	at org.eclipse.equinox.launcher.Main.main(Main.java:1438)
> Caused by: org.eclipse.swt.SWTException: Widget is disposed
> 	at org.eclipse.swt.SWT.error(SWT.java:4441)
> 	at org.eclipse.swt.SWT.error(SWT.java:4356)
> 	at org.eclipse.swt.SWT.error(SWT.java:4327)
> 	at org.eclipse.swt.widgets.Widget.error(Widget.java:476)
> 	at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:413)
> 	at org.eclipse.swt.widgets.Composite.getChildren(Composite.java:610)
> 	at org.jboss.tools.central.editors.GettingStartedPage.disposeChildren(GettingStartedPage.java:1124)
> 	at org.jboss.tools.central.editors.GettingStartedPage.addProxyWizardLinks(GettingStartedPage.java:533)
> 	at org.jboss.tools.central.editors.GettingStartedPage.access$12(GettingStartedPage.java:531)
> 	at org.jboss.tools.central.editors.GettingStartedPage$5$1.run(GettingStartedPage.java:520)
> 	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
> 	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136)
> 	... 24 more{code}
> It happens because of WIzard Links area is populated in delayed async execution and if download is long enough central editor can get closed before deferred UI processing started. 
> Simple solution is check that central is still opened after getProxyWizards()  called and to modify async exec so it check if widget is disposed before doing any UI manipulations in central editor. 



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