Hi all,

I've been investigating a JBDS startup problem, which happens to occur only if the workbench was closed with a BPEL Designer window still open.

The problem was originally reported here:

https://issues.jboss.org/browse/JBDS-2404#comment-12739309

Oddly, the stack trace shows a com.metamatrix.modeler.core.ModelerCoreRuntimeException just before the workbench crashes:

com.metamatrix.modeler.core.ModelerCoreRuntimeException

    at com.metamatrix.modeler.internal.core.ModelEditorImpl.executeAsTransaction(ModelEditorImpl.java:558)

    at com.metamatrix.modeler.internal.core.ModelEditorImpl.getNewSiblingCommands(ModelEditorImpl.java:476)

    at com.metamatrix.modeler.ui.actions.ModelerActionService.getInsertSiblingMenu(ModelerActionService.java:733)

    at com.metamatrix.modeler.internal.ui.actions.NewSiblingMenu.getContributionManager(NewSiblingMenu.java:17)

    at com.metamatrix.modeler.internal.ui.actions.NewMenuContributionsManager.getContributionItems(NewMenuContributionsManager.java:32)

    at org.eclipse.ui.actions.CompoundContributionItem.getContributionItemsToFill(CompoundContributionItem.java:95)

    at org.eclipse.ui.actions.CompoundContributionItem.fill(CompoundContributionItem.java:70)

    at org.eclipse.ui.internal.menus.DynamicMenuContributionItem.fill(DynamicMenuContributionItem.java:197)

    at org.eclipse.jface.action.MenuManager.doItemFill(MenuManager.java:741)

    at org.eclipse.jface.action.MenuManager.update(MenuManager.java:822)

    at org.eclipse.jface.action.MenuManager.handleAboutToShow(MenuManager.java:474)

    at org.eclipse.jface.action.MenuManager.access$1(MenuManager.java:469)

    at org.eclipse.jface.action.MenuManager$2.menuShown(MenuManager.java:495)

    at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:247)

    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)

    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)

    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1282)

    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1263)

    at org.eclipse.swt.widgets.Menu.gtk_show(Menu.java:669)

    at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1708)

    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4402)

    at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method)

    at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2276)

    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3207)

    at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:803)

    at org.eclipse.ui.internal.Workbench$33.runWithException(Workbench.java:1600)

    at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)

    at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)

    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)

    at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3563)

    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3212)

    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2609)

    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)

    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)

    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)

    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)

    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)

    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)

    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:344)

    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:57)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:601)

    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)

    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)

    at org.eclipse.equinox.launcher.Main.run(Main.java:1410)

    at org.eclipse.equinox.launcher.Main.main(Main.java:1386)

Caused by: java.lang.NullPointerException

    at com.metamatrix.modeler.internal.core.ModelEditorImpl$2.run(ModelEditorImpl.java:461)

    at com.metamatrix.modeler.internal.core.ModelEditorImpl.executeAsTransaction(ModelEditorImpl.java:550)

    ... 50 more

Following this are a bunch of "widget disposed too early" errors which are obviously caused by eclipse views and windows trying to open while the workbench is crashing.

So far I have only been able to reproduce this error on ubuntu 12.10 (32 and 64 bit) - there no errors on fedora or ms-windows.

Can anyone provide some insight into what might be going on in ModelEditorImpl?

Thanks!

Bob