setMessage(DebugUIUtils.getResourceString(SELECT_ELEMENTS));
			public void selectionChanged(SelectionChangedEvent e) {				if (e.getSelection().isEmpty()) {					setMessage(DebugUIUtils.getResourceString(SELECT_ELEMENTS));					setPageComplete(false);				} else if (e.getSelection() instanceof IStructuredSelection) {					IStructuredSelection ss= (IStructuredSelection) e.getSelection();					if (!ss.isEmpty()) {						setMessage(null);						setPageComplete(true);					}				}			}