Bug 119827 Window working set has strange name in type hierarchy view
Build id: I20051206-1200 Don't know if this is JDT/UI or Platform/UI but when the window working set is selected a strange name is presented in the title bar of the view (see attached screen shot)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerPart.java
refreshViewer= true;
		}
		if (refreshViewer)
			fViewer.refresh();
	}
	
	/* (non-Javadoc)
	 * @see IViewPartInputProvider#getViewPartInput()
	 */
	public Object getViewPartInput() {
		if (fViewer != null) {
			return fViewer.getInput();
		}
		return null;
	}
	public void collapseAll() {
		try {
			fViewer.getControl().setRedraw(false);		
			fViewer.collapseToLevel(getViewPartInput(), AbstractTreeViewer.ALL_LEVELS);
		} finally {
			fViewer.getControl().setRedraw(true);
		}
	}
	
	public PackageExplorerPart() { 
		initLinkingEnabled();
		fPostSelectionListener= new ISelectionChangedListener() {
			public void selectionChanged(SelectionChangedEvent event) {
				handlePostSelectionChanged(event);
			}