@Override
public void windowOpened(IWorkbenchWindow window) {
	if ( window instanceof ApplicationWindow ) {
		ApplicationWindow applicationWindow = (ApplicationWindow) window;
		MenuManager menuManager = applicationWindow.getMenuBarManager();
		for (IContributionItem item : menuManager.getItems()) {
			if (item instanceof MenuManager) {
				defineTestIdsForMenuManager((MenuManager) item);
			} 
		}
	}
}

public void defineTestIdsForMenuManager( MenuManager item ) {
	if ( item.getMenu() != null ) {			
		System.out.println( "Menu with id " + item.getId() + " gets id " + WidgetUtil.getId(item.getMenu()) );
		UITestUtil.setTestId(item.getMenu(), item.getId());
	}
	for (IContributionItem child : item.getItems() ) {
		if ( child instanceof MenuManager ) {
			defineTestIdsForMenuManager((MenuManager) child);
		}
	}
}