Bug 218360 [Servicability] Fix places that pop up message dialogues under ISafeRunnable
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
clearSelectedNode();
			}
		};
		
		SafeRunner.run(runnable);
		
		return super.close();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
	 */
	protected void configureShell(Shell newShell) {
		super.configureShell(newShell);
		newShell.setText(JFaceResources.getString("PreferenceDialog.title")); 
		newShell.addShellListener(new ShellAdapter() {
			public void shellActivated(ShellEvent e) {
				if (lastShellSize == null) {
					lastShellSize = getShell().getSize();
				}
			}
		});
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.window.Window#constrainShellSize()
	 */
	protected void constrainShellSize() {