private void initActions() {
    ActionMap map = getActionMap();
    map.put(ListActions.Up.ID, new MoveFocusAction(map.get(ListActions.Up.ID), false));
    map.put(ListActions.Down.ID, new MoveFocusAction(map.get(ListActions.Down.ID), true));
    map.put(ListActions.Left.ID, new MoveFocusAction(new ChangeColumnAction(map.get(ListActions.Left.ID), false), false));
    map.put(ListActions.Right.ID, new MoveFocusAction(new ChangeColumnAction(map.get(ListActions.Right.ID), true), true));
  }
private void initActions()