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 MarkerFilter
	 */
	protected abstract MarkerFilter createFilter(String name);
	/**
	 * Return the memento tag for the receiver.
	 * 
	 * @return String
	 */
	protected abstract String getSectionTag();
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.views.internal.tableview.TableView#createPartControl(org.eclipse.swt.widgets.Composite)
	 */
	public void createPartControl(Composite parent) {
		
		clipboard = new Clipboard(parent.getDisplay());
		super.createPartControl(parent);
		initDragAndDrop();
		getSite().getPage().addSelectionListener(focusListener);
		focusSelectionChanged(getSite().getPage().getActivePart(), getSite()
				.getPage().getSelection());
		PlatformUI.getWorkbench().getWorkingSetManager()
				.addPropertyChangeListener(getWorkingSetListener());
		
		getViewer().getControl().addHelpListener(new HelpListener() {
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.swt.events.HelpListener#helpRequested(org.eclipse.swt.events.HelpEvent)