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
if (l.size() == 0)
				fAdditionalMappings.remove(element);
		}
		protected void unmapAllElements() {
			fAdditionalMappings.clear();
			super.unmapAllElements();
		}
		protected void internalRemove(Object[] elements) {
			IContentProvider cp= getContentProvider();
			if (!(cp instanceof IMultiElementTreeContentProvider)) {
				super.internalRemove(elements);
				return;
			}
			Map stable= new HashMap();
			for (int i= 0; i < elements.length; i++) {
				List l= (List)fAdditionalMappings.get(elements[i]);
				if (l != null) {
					stable.put(elements[i], new Integer(l.size()));
				}
			}
			super.internalRemove(elements);
			for (int i= 0; i < elements.length; i++) {
				Object element= elements[i];
				Integer size= (Integer)stable.get(element);
				if (size != null) {
					int loop= size.intValue();
					Object[] toRemove= new Object[] {element};
					while(loop > 0) {
						super.internalRemove(toRemove);
						loop--;