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
return enabledFilters;
	}
	/**
	 * Find the filters enabled in the view.
	 * 
	 * @return Collection of MarkerFilter
	 */
	protected Collection findEnabledFilters() {
		MarkerFilter[] allFilters = getAllFilters();
		ArrayList filters = new ArrayList(0);
		for (int i = 0; i < allFilters.length; i++) {
			if (allFilters[i].isEnabled())
				filters.add(allFilters[i]);
		}
		return filters;
	}
	/**
	 * Get all of the filters applied to the receiver.
	 * 
	 * @return MarkerFilter[]
	 */
	MarkerFilter[] getAllFilters() {
		return getUserFilters();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.views.markers.internal.TableView#addDropDownContributions(org.eclipse.jface.action.IMenuManager)
	 */
	void addDropDownContributions(IMenuManager menu) {