public JPopupMenu createPopupMenu() {
   JPopupMenu menu = new JPopupMenu();
   JMenu addMenu =
       MenuFactory.makeMenus(
           new String[] {
             MenuFactory.CONFIG_ELEMENTS,
             MenuFactory.ASSERTIONS,
             MenuFactory.TIMERS,
             MenuFactory.LISTENERS,
           },
           JMeterUtils.getResString("add"), // $NON-NLS-1$
           ActionNames.ADD);
   menu.add(addMenu);
   MenuFactory.addEditMenu(menu, true);
   MenuFactory.addFileMenu(menu);
   return menu;
 }