protected void fillToolbarActions(DefaultActionGroup group) {
    final boolean alphabeticallySorted = PropertiesComponent.getInstance().isTrueValue(PROP_SORTED);
    if (alphabeticallySorted) {
      setSortComparator(new AlphaComparator());
    }
    myAlphabeticallySorted = alphabeticallySorted;
    group.add(mySortAction);

    if (!supportsNestedContainers()) {
      ShowContainersAction showContainersAction = getShowContainersAction();
      showContainersAction.registerCustomShortcutSet(new CustomShortcutSet(KeyStroke.getKeyStroke(KeyEvent.VK_C, InputEvent.ALT_MASK)),
                                                     myTree);
      setShowClasses(PropertiesComponent.getInstance().getBoolean(PROP_SHOWCLASSES, true));
      group.add(showContainersAction);
    }
  }
protected void fillToolbarActions(DefaultActionGroup group)