Bug 114542 [Markers] Possible to get empty path nodes in problems view hierarcahl mode
20051101 Warnings on the top level of a project ended up having an empty label. STEPS 1) Change filters to show selected elements and children 2) Go into hierarchal mode 3) Select org.eclipse.ui.tests
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
* Refresh the marker counts
	 * 
	 * @param monitor
	 */
	void refreshMarkerCounts(IProgressMonitor monitor) {
		monitor.subTask(MarkerMessages.MarkerView_refreshing_counts);
		try {
			totalMarkers = MarkerList.compute(getMarkerTypes()).length;
		} catch (CoreException e) {
			IDEWorkbenchPlugin.getDefault().getLog().log(e.getStatus());
			return;
		}
	}
	/**
	 * Schedule an update of the summary counts.
	 */
	public void scheduleCountUpdate() {
		if (countUpdateJob == null)
			createUIJob();
		countUpdateJob.schedule();
		
		if(getSite().getShell().getDisplay().getThread() == Thread.currentThread())
			return; 
		
		try {
			countUpdateJob.join();
		} catch (InterruptedException e) {
			return;
		}
	}