Bug 85350 [Markers] [Progress] NoClassDefFoundError from job running during shutdown
i200502150800 Got the following exception running Core UI application startup performance tests (the test just exits once the workbench is alive, so it is a very short session). I did not verify the source code, but it seems the runtime plug-in may have already been stopped when the job in question started doing its work. java.lang.NoClassDefFoundError: org/eclipse/core/runtime/jobs/ILock at org.eclipse.ui.views.markers.internal.TableContentProvider.cancelPendingChanges(TableContentProvider.java:342) at org.eclipse.ui.views.markers.internal.TableView.haltTableUpdates(TableView.java:94) at org.eclipse.ui.views.markers.internal.MarkerView.internalRefresh(MarkerView.java:188) at org.eclipse.ui.views.markers.internal.MarkerView.access$3(MarkerView.java:181) at org.eclipse.ui.views.markers.internal.MarkerView$3.run(MarkerView.java:281) at org.eclipse.ui.views.markers.internal.RestartableJob$2.run(RestartableJob.java:85) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:67)
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
super.addDropDownContributions(menu);
		menu.add(new Separator(MENU_FILTERS_GROUP));
		
		filtersMenu = new MenuManager(MarkerMessages.filtersSubMenu_title);
		refreshFilterMenu();
		menu.appendToGroup(MENU_FILTERS_GROUP, filtersMenu);
	}
	/**
	 * Create the show in menu if there is a single selection.
	 * 
	 * @param menu
	 */
	void createShowInMenu(IMenuManager menu) {
		ISelection selection = getViewer().getSelection();
		if (!(selection instanceof IStructuredSelection))
			return;
		IStructuredSelection structured = (IStructuredSelection) selection;
		if (!Util.isSingleConcreteSelection(structured))
			return;
		menu.add(new Separator(MENU_SHOW_IN_GROUP));
		
		showInMenu = new MenuManager(IDEWorkbenchMessages.Workbench_showIn);
		showInMenu.add(ContributionItemFactory.VIEWS_SHOW_IN
				.create(getViewSite().getWorkbenchWindow()));
		menu.appendToGroup(MENU_SHOW_IN_GROUP, showInMenu);
	}
	/**
	 * Refresh the marker counts
	 * 
	 * @param monitor