return null;
if (!isFocusCycleRoot ()) return null;  if (focusTraversalPolicy == null) { Container ancestor = getFocusCycleRootAncestor ();  if (ancestor != this) return ancestor.getFocusTraversalPolicy (); else { KeyboardFocusManager manager = KeyboardFocusManager.getCurrentKeyboardFocusManager ();  return manager.getDefaultFocusTraversalPolicy (); } } else return focusTraversalPolicy;
  public FocusTraversalPolicy getFocusTraversalPolicy()  {    return null;  }