docs: @SuppressWarnings("deprecation")
      @Override
      public List<Action> getActions() {
          // add all the transient actions, too
          List<Action> actions = new Vector<Action>(super.getActions());
          actions.addAll(transientActions);
          // return the read only list to cause a failure on plugins who try to add an action here
          return Collections.unmodifiableList(actions);
      }