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
* 
		 * @param addedMarkers
		 * @return boolean
		 */
		private boolean addRefreshRequired(Collection addedMarkers) {
			if (addedMarkers.isEmpty())
				return false;
			MarkerFilter[] filters = getEnabledFilters();
			for (int i = 0; i < filters.length; i++) {
				Iterator added = addedMarkers.iterator();
				while (added.hasNext()) {
					try {
						if (filters[i].select(MarkerList
								.createMarker((IMarker) added.next())))
							return true;
					} catch (CoreException e) {
						IDEWorkbenchPlugin.getDefault().getLog().log(
								e.getStatus());
					}
				}
			}
			return false;
		}
	};
	private class ContextProvider implements IContextProvider {
		public int getContextChangeMask() {
			return SELECTION;
		}
		public IContext getContext(Object target) {
			String contextId = null;