Description Patrick Tessier 2009-03-04 09:36:07 EST

When I close a diagram, UML elements in the model explorer disapears, and null pointer exception is raised. 
The null pointer exeption loops. User has to close eclipse.

java.lang.NullPointerException
	at org.eclipse.emf.workspace.util.WorkspaceSynchronizer.getFile(WorkspaceSynchronizer.java:265)
	at org.eclipse.papyrus.diagram.clazz.part.UMLDiagramEditor.getNavigatorSelection(UMLDiagramEditor.java:262)
	at org.eclipse.papyrus.diagram.clazz.part.UMLDiagramEditor.getShowInContext(UMLDiagramEditor.java:250)
	at org.eclipse.ui.internal.services.ActivePartSourceProvider.getContext(ActivePartSourceProvider.java:255)
	at org.eclipse.ui.internal.services.ActivePartSourceProvider.getCurrentState(ActivePartSourceProvider.java:309)
	at org.eclipse.ui.internal.services.ActivePartSourceProvider.checkActivePart(ActivePartSourceProvider.java:150)
	at org.eclipse.ui.internal.services.ActivePartSourceProvider$2.windowDeactivated(ActivePartSourceProvider.java:125)
	at org.eclipse.ui.internal.Workbench$13.run(Workbench.java:824)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
	at org.eclipse.ui.internal.Workbench.fireWindowDeactivated(Workbench.java:822)
	at org.eclipse.ui.internal.WorkbenchWindow$26.shellDeactivated(WorkbenchWindow.java:3012)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:105)
	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.Widget.sendEvent(Widget.java:1027)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1008)
	at org.eclipse.swt.widgets.Decorations.WM_ACTIVATE(Decorations.java:1625)
	at org.eclipse.swt.widgets.Shell.WM_ACTIVATE(Shell.java:2013)
	at org.eclipse.swt.widgets.Control.windowProc(Control.java:3784)
	at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:337)
	at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1576)
	at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:1937)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:4528)
	at org.eclipse.swt.internal.win32.OS.PeekMessageW(Native Method)
	at org.eclipse.swt.internal.win32.OS.PeekMessage(OS.java:2880)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3417)
	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(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	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)