focusListener = new FocusHandler(); listDataListener = new ListDataHandler(); listSelectionListener = new ListSelectionHandler(); mouseInputListener = new MouseInputHandler(); keyListener = new KeyHandler(); propertyChangeListener = new PropertyChangeHandler(); componentListener = new ComponentHandler();
  public BasicListUI()  {    focusListener = new FocusHandler();    listDataListener = new ListDataHandler();    listSelectionListener = new ListSelectionHandler();    mouseInputListener = new MouseInputHandler();    keyListener = new KeyHandler();    propertyChangeListener = new PropertyChangeHandler();    componentListener = new ComponentHandler();    updateLayoutStateNeeded = 1;    rendererPane = new CellRendererPane();  }