public Set getFocusTraversalKeys(int id) { if (id < KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS || id > KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS)
public Set getFocusTraversalKeys (int id) { if (id != KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS && id != KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS && id != KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS)
	public Set getFocusTraversalKeys(int id) {		if (id < KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS || id > KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS)			throw new IllegalArgumentException();		Set s = null;		if (focusTraversalKeys != null)			s = focusTraversalKeys[id];		if (s == null && parent != null)			s = parent.getFocusTraversalKeys(id);		return s == null ? (KeyboardFocusManager.getCurrentKeyboardFocusManager().getDefaultFocusTraversalKeys(id)) : s;	}