ApplicationWorkbenchAdvisor {
       [...]
	@Override
	public boolean preShutdown() {		
		Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
		String dialogBoxTitle = "Hello";
		String question = "World";
		return MessageDialog.openQuestion(shell, dialogBoxTitle, question);
	}
}

ApplicationActionBarAdvisor {
    [...]
    protected void makeActions(IWorkbenchWindow window) {
		exitAction = ActionFactory.QUIT.create(window);
		register(exitAction);

    }

    protected void fillMenuBar(IMenuManager menuBar) {    	
		MenuManager fileMenu = new   MenuManager("Datei",IWorkbenchActionConstants.M_FILE);		
		menuBar.add( fileMenu );
		fileMenu.add(exitAction);
    }
}

SwtbotTest {
	private final SWTWorkbenchBot bot = new SWTWorkbenchBot();
	
	@Test
	public void doSomethine() throws Exception {
		
		System.out.println("+++ SwtbotTest.doSomethine()");
		
		Thread.sleep(1000);
		
		bot.menu("Datei").menu("Beenden").click();
		
		Thread.sleep(1000);
		
                // Hack to find the right button
		try {
			for( int i=0; ;i++ ) {
				if( "&Ja".equals( bot.button(i).getText() ) )
					bot.button(i).click();
			}
		} catch( ArrayIndexOutOfBoundsException e ) { }
		
		System.out.println("--- SwtbotTest.doSomethine()");
	}
}