KeyboardFocusManager manager = KeyboardFocusManager.getCurrentKeyboardFocusManager ();  manager.downFocusCycle (this);
if (isFocusCycleRoot()) { KeyboardFocusManager fm = KeyboardFocusManager.getCurrentKeyboardFocusManager(); fm.setGlobalCurrentFocusCycleRoot(this); FocusTraversalPolicy policy = getFocusTraversalPolicy(); Component defaultComponent = policy.getDefaultComponent(this); if (defaultComponent != null) defaultComponent.requestFocus(); }
  public void transferFocusDownCycle ()  {    KeyboardFocusManager manager = KeyboardFocusManager.getCurrentKeyboardFocusManager ();    manager.downFocusCycle (this);  }