public void mouseEntered(MouseEvent evt)
        {
            if (evt.getSource() instanceof AbstractButton) {
                AbstractButton button = (AbstractButton) evt.getSource();
                Action action = button.getAction();
                if (action != null && enabledChange) {
                    String message = (String) action
                            .getValue(Action.LONG_DESCRIPTION);
                    label.setText(message);
                }
            }
        }