@SuppressWarnings("unchecked")
  public void resetElements(
      T[] elements,
      final @Nullable Comparator<T> sortComparator,
      final boolean restoreSelectedElements) {
    final List<T> selectedElements =
        restoreSelectedElements && mySelectedElements != null
            ? new ArrayList<T>(mySelectedElements)
            : null;
    myElements = elements;
    if (sortComparator != null) {
      myComparator = new ElementNodeComparatorWrapper(sortComparator);
    }
    mySelectedNodes.clear();
    myNodeToParentMap.clear();
    myElementToNodeMap.clear();
    myContainerNodes.clear();

    ApplicationManager.getApplication()
        .runReadAction(
            new Runnable() {
              @Override
              public void run() {
                myTreeModel = buildModel();
              }
            });

    myTree.setModel(myTreeModel);
    myTree.setRootVisible(false);

    restoreTree();

    if (myOptionControls == null) {
      myCopyJavadocCheckbox = new NonFocusableCheckBox(IdeBundle.message("checkbox.copy.javadoc"));
      if (myIsInsertOverrideVisible) {
        myInsertOverrideAnnotationCheckbox =
            new NonFocusableCheckBox(IdeBundle.message("checkbox.insert.at.override"));
        myOptionControls =
            new JCheckBox[] {myCopyJavadocCheckbox, myInsertOverrideAnnotationCheckbox};
      } else {
        myOptionControls = new JCheckBox[] {myCopyJavadocCheckbox};
      }
    }

    myTree.doLayout();
    setOKActionEnabled(myElements != null && myElements.length > 0);

    if (selectedElements != null) {
      selectElements(selectedElements.toArray(new ClassMember[selectedElements.size()]));
    }
    if (mySelectedElements == null || mySelectedElements.isEmpty()) {
      expandFirst();
    }
  }
 private void setShowClasses(boolean showClasses) {
   myShowClasses = showClasses;
   restoreTree();
 }