Bug 71283 Type Hierarchy View should show active working set in content description [type hierarchy]
Eclipse 3.0 The type hierarchy should show the active working set in the content description. Instead of WorkbenchPart#setTitle(), it should use setContentDescription() to display the focus type and active working set.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
private void restoreState(final IMemento memento, IJavaElement defaultInput) {
		IJavaElement input= defaultInput;
		String elementId= memento.getString(TAG_INPUT);
		if (elementId != null) {
			input= JavaCore.create(elementId);
			if (input != null && !input.exists()) {
				input= null;
			}
		}
		if (input == null) {
			doRestoreState(memento, input);
		} else {
			final IJavaElement hierarchyInput= input;
			
			synchronized (this) {
				String label= TypeHierarchyMessages.getFormattedString("TypeHierarchyViewPart.restoreinput", hierarchyInput.getElementName()); 
				fNoHierarchyShownLabel.setText(label); 
				fRestoreStateJob= new Job(label) {
					protected IStatus run(IProgressMonitor monitor) {
						try {
							doRestoreInBackground(memento, hierarchyInput, monitor);
						} catch (JavaModelException e) {
							return e.getStatus();
						} catch (OperationCanceledException e) {
							return Status.CANCEL_STATUS;
						}
						return Status.OK_STATUS;
					}
				};
				fRestoreStateJob.schedule();