protected void fillToolbarActions(DefaultActionGroup group) {
    final boolean alphabeticallySorted = PropertiesComponent.getInstance().isTrueValue(PROP_SORTED);
    if (alphabeticallySorted) {
      setSortComparator(new OrderComparator());
    }
    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().isTrueValue(PROP_SHOWCLASSES));
      group.add(showContainersAction);
    }
  }
  @Override
  public void dispose() {
    PropertiesComponent instance = PropertiesComponent.getInstance();
    instance.setValue(PROP_SORTED, Boolean.toString(isAlphabeticallySorted()));
    instance.setValue(PROP_SHOWCLASSES, Boolean.toString(myShowClasses));

    if (myCopyJavadocCheckbox != null) {
      instance.setValue(PROP_COPYJAVADOC, Boolean.toString(myCopyJavadocCheckbox.isSelected()));
    }

    final Container contentPane = getContentPane();
    if (contentPane != null) {
      contentPane.removeAll();
    }
    mySelectedNodes.clear();
    myElements = null;
    super.dispose();
  }
 protected void customizeOptionsPanel() {
   if (myInsertOverrideAnnotationCheckbox != null && myIsInsertOverrideVisible) {
     CodeStyleSettings styleSettings =
         CodeStyleSettingsManager.getInstance(myProject).getCurrentSettings();
     myInsertOverrideAnnotationCheckbox.setSelected(styleSettings.INSERT_OVERRIDE_ANNOTATION);
   }
   if (myCopyJavadocCheckbox != null) {
     myCopyJavadocCheckbox.setSelected(
         PropertiesComponent.getInstance().isTrueValue(PROP_COPYJAVADOC));
   }
 }