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
* 
	 * @since 2.1
	 */
	private ProblemTreeViewer createViewer(Composite composite) {
		return  new PackageExplorerProblemTreeViewer(composite, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
	}
	/**
	 * Answers whether this part shows the packages flat or hierarchical.
	 * 
	 * @since 2.1
	 */
	public boolean isFlatLayout() {
		return fIsCurrentLayoutFlat;
	}
	
	private void setProviders() {
		
		fContentProvider= createContentProvider();
		fContentProvider.setIsFlatLayout(fIsCurrentLayoutFlat);
		fViewer.setComparer(createElementComparer());
		fViewer.setContentProvider(fContentProvider);
	
		fLabelProvider= createLabelProvider();
		fLabelProvider.setIsFlatLayout(fIsCurrentLayoutFlat);
		fViewer.setLabelProvider(new DecoratingJavaLabelProvider(fLabelProvider, false));
		
	}
	
	void toggleLayout() {