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
*/
	protected void handleKeyPressed(KeyEvent event) {
		if (event.character == SWT.DEL && event.stateMask == 0
				&& deleteAction.isEnabled()) {
			deleteAction.run();
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.views.internal.tableview.TableView#handleOpenEvent(org.eclipse.jface.viewers.OpenEvent)
	 */
	protected void handleOpenEvent(OpenEvent event) {
		if(openAction.isEnabled())
			openAction.run();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.views.internal.tableview.TableView#saveSelection(org.eclipse.ui.IMemento)
	 */
	protected void saveSelection(IMemento memento) {
		IStructuredSelection selection = (IStructuredSelection) getViewer()
				.getSelection();
		IMemento selectionMem = memento.createChild(TAG_SELECTION);
		for (Iterator iterator = selection.iterator(); iterator.hasNext();) {
			Object next = iterator.next();
			if (!(next instanceof ConcreteMarker))
				continue;
			ConcreteMarker marker = (ConcreteMarker) next;