[jbosstools-issues] [JBoss JIRA] (JBIDE-18031) Widget disposed error when toggling EA features on/off

[Nick Boldt (JIRA)]

Nick Boldt created JBIDE-18031:
----------------------------------

             Summary: Widget disposed error when toggling EA features on/off
                 Key: JBIDE-18031
                 URL: https://issues.jboss.org/browse/JBIDE-18031
             Project: Tools (JBoss Tools)
          Issue Type: Bug
          Components: central, discovery
    Affects Versions: 4.2.0.CR1
            Reporter: Nick Boldt
            Assignee: Mickael Istria
             Fix For: 4.2.0.CR1


1. Install JBT 4.2.0.Beta3 or CR1 (nightly) into Eclipse Luna eclipse-jee-luna-R-linux.gtk.x86_64.tar.gz
2. Launch JBT, and Central will open by itself (default)
3. Select Software/Update tab
4. Enable the "Enable Early Access" box, and click "Yes" to accept.
5. Disable the "Enable Early Access" box, and click "OK" to acknowledge.

(So far, so good.)

6. Close Central, then reopen it from the coolbar icon.
7. Repeat steps 4 and 5. This time, you will see errors such as this:

{code}
Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
{code}
{code}
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.getDisplay(Widget.java:562)
	at org.jboss.tools.central.editors.JBossCentralEditor$HeaderText$1.propertyChange(JBossCentralEditor.java:533)
	at org.eclipse.ui.preferences.ScopedPreferenceStore$3.run(ScopedPreferenceStore.java:382)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.preferences.ScopedPreferenceStore.firePropertyChangeEvent(ScopedPreferenceStore.java:378)
	at org.eclipse.ui.preferences.ScopedPreferenceStore$2.preferenceChange(ScopedPreferenceStore.java:197)
	at org.eclipse.core.internal.preferences.EclipsePreferences$3.run(EclipsePreferences.java:896)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.preferences.EclipsePreferences.firePreferenceEvent(EclipsePreferences.java:899)
	at org.eclipse.core.internal.preferences.EclipsePreferences.putBoolean(EclipsePreferences.java:926)
	at org.jboss.tools.central.editors.SoftwarePage.handleEarlyAccessChanged(SoftwarePage.java:553)
	at org.jboss.tools.central.editors.SoftwarePage.access$11(SoftwarePage.java:506)
	at org.jboss.tools.central.editors.SoftwarePage$5.widgetSelected(SoftwarePage.java:236)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4486)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1388)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3831)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3441)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
	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:382)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:236)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	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)
{code}
{code}
eclipse.buildId=4.4.0.I20140606-1215
java.version=1.8.0
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Framework arguments:  -product org.eclipse.epp.package.jee.product -showLocation -Dorg.jboss.tools.vpe.loadxulrunner=false 
Command-line arguments:  -os linux -ws gtk -arch x86_64 -product org.eclipse.epp.package.jee.product -clean -showLocation -data /home/nboldt/eclipse/workspace-clean44 -consolelog -console -debug -Dorg.jboss.tools.vpe.loadxulrunner=false 
{code}

8. Restart Eclipse. Errors go away. (Steps 4-5 work as expected.)

9. Close and re-open Central. Errors are back. (Steps 4-5 throw errors.)



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