[news.eclipse.platform.swt] HELP: java.lang.IllegalStateException: Works

[Federica <a@xxx>]

Hi all,
I'm writing a plugin, and I'm blocked on a strange behavior. My plugin 
contains a wizard, and as soon as I start a debug session for it and try 
to open the wizard I get the following message on the console:

Unhandled event loop exception
Reason:
Workspace is closed.

In the .log file, I find the exception shown at the end of this 
messasge. I'm running Eclipse 3.1 M6. I've tried to debug the problem, 
and here is what I'm seeing. The exception happens because when 
ResourcesPlugin.getWorkspace() is called ResourcesPlugin.workspace is 
null. The filed is set to null only in two places: at static 
initialization (when the class is loaded), and in the shutdown() method. 
I've placed a Watch on the workspace variable, and I do see it being 
initialized with a valid instance before the debugged Workbench shows 
up. However, when I try to open my wizard, I end up in the exception 
without seing any more assignment to the workspace variable.

Can someone give me a hint? I'm totally lost!

      Thank you,

                 Federica



java.lang.IllegalStateException: Workspace is closed.
	at 
org.eclipse.core.resources.ResourcesPlugin.getWorkspace(ResourcesPlugin.java:320)
	at 
org.eclipse.ui.internal.ide.misc.ContainerSelectionGroup.createTreeViewer(ContainerSelectionGroup.java:255)
	at 
org.eclipse.ui.internal.ide.misc.ContainerSelectionGroup.createContents(ContainerSelectionGroup.java:205)
	at 
org.eclipse.ui.internal.ide.misc.ContainerSelectionGroup.<init>(ContainerSelectionGroup.java:142)
	at 
org.eclipse.ui.internal.ide.misc.ResourceAndContainerGroup.createContents(ResourceAndContainerGroup.java:174)
	at 
org.eclipse.ui.internal.ide.misc.ResourceAndContainerGroup.<init>(ResourceAndContainerGroup.java:135)
	at 
org.eclipse.ui.dialogs.WizardNewFileCreationPage.createControl(WizardNewFileCreationPage.java:189)
	at 
teja.TejaViewerCreationWizard$CreationPage.createControl(TejaViewerCreationWizard.java:60)
	at 
org.eclipse.jface.wizard.WizardDialog.updateForPage(WizardDialog.java:1020)
	at org.eclipse.jface.wizard.WizardDialog.access$2(WizardDialog.java:1013)
	at org.eclipse.jface.wizard.WizardDialog$4.run(WizardDialog.java:1003)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
	at org.eclipse.jface.wizard.WizardDialog.showPage(WizardDialog.java:1001)
	at org.eclipse.jface.wizard.WizardDialog.nextPressed(WizardDialog.java:753)
	at 
org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:345)
	at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:556)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:89)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:842)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2894)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2527)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:803)
	at org.eclipse.jface.window.Window.open(Window.java:781)
	at org.eclipse.ui.actions.NewWizardAction.run(NewWizardAction.java:181)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:996)
	at 
org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:538)
	at 
org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488)
	at 
org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:400)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:842)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2894)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2527)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1570)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1534)
	at 
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:306)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
	at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
	at 
org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:228)
	at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
	at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:156)
	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:324)
	at org.eclipse.core.launcher.Main.invokeFramework(Main.java:315)
	at org.eclipse.core.launcher.Main.basicRun(Main.java:268)
	at org.eclipse.core.launcher.Main.run(Main.java:942)
	at org.eclipse.core.launcher.Main.main(Main.java:926)