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
boolean buildDone = true;
		private Collection pendingMarkerUpdates = Collections
				.synchronizedSet(new HashSet());
		boolean refreshAll = false;
		UpdateJob() {
			super(MarkerMessages.MarkerView_queueing_updates);
		}
		/**
		 * Refresh the changed list.
		 * 
		 * @param changed
		 */
		void refresh(Collection changed) {
			if (refreshAll)
				return;
			pendingMarkerUpdates.addAll(changed);
		}
		/**
		 * Refresh the whole view
		 */
		void refreshAll() {
			refreshAll = true;
			pendingMarkerUpdates.clear();
		}
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.ui.progress.UIJob#runInUIThread(org.eclipse.core.runtime.IProgressMonitor)
		 */
		public IStatus runInUIThread(IProgressMonitor monitor) {