458      *
 459      * @param l the action listener to be removed
 460      */
 461     public synchronized void removeActionListener(ActionListener l) {
 462         if ((l != null) && (getAction() == l)) {
 463             setAction(null);
 464         } else {
 465             listenerList.remove(ActionListener.class, l);
 466         }
 467     }
 468 
 469     /**
 470      * Returns an array of all the <code>ActionListener</code>s added
 471      * to this JTextField with addActionListener().
 472      *
 473      * @return all of the <code>ActionListener</code>s added or an empty
 474      *         array if no listeners have been added
 475      * @since 1.4
 476      */
 477     public synchronized ActionListener[] getActionListeners() {
 478         return (ActionListener[])listenerList.getListeners(
 479                 ActionListener.class);
 480     }
 481 
 482     /**
 483      * Notifies all listeners that have registered interest for
 484      * notification on this event type.  The event instance
 485      * is lazily created.
 486      * The listener list is processed in last to
 487      * first order.
 488      * @see EventListenerList
 489      */
 490     protected void fireActionPerformed() {
 491         // Guaranteed to return a non-null array
 492         Object[] listeners = listenerList.getListenerList();
 493         int modifiers = 0;
 494         AWTEvent currentEvent = EventQueue.getCurrentEvent();
 495         if (currentEvent instanceof InputEvent) {
 496             modifiers = ((InputEvent)currentEvent).getModifiers();
 497         } else if (currentEvent instanceof ActionEvent) {
 498             modifiers = ((ActionEvent)currentEvent).getModifiers();
 499         }

 458      *
 459      * @param l the action listener to be removed
 460      */
 461     public synchronized void removeActionListener(ActionListener l) {
 462         if ((l != null) && (getAction() == l)) {
 463             setAction(null);
 464         } else {
 465             listenerList.remove(ActionListener.class, l);
 466         }
 467     }
 468 
 469     /**
 470      * Returns an array of all the <code>ActionListener</code>s added
 471      * to this JTextField with addActionListener().
 472      *
 473      * @return all of the <code>ActionListener</code>s added or an empty
 474      *         array if no listeners have been added
 475      * @since 1.4
 476      */
 477     public synchronized ActionListener[] getActionListeners() {
 478         return listenerList.getListeners(ActionListener.class);

 479     }
 480 
 481     /**
 482      * Notifies all listeners that have registered interest for
 483      * notification on this event type.  The event instance
 484      * is lazily created.
 485      * The listener list is processed in last to
 486      * first order.
 487      * @see EventListenerList
 488      */
 489     protected void fireActionPerformed() {
 490         // Guaranteed to return a non-null array
 491         Object[] listeners = listenerList.getListenerList();
 492         int modifiers = 0;
 493         AWTEvent currentEvent = EventQueue.getCurrentEvent();
 494         if (currentEvent instanceof InputEvent) {
 495             modifiers = ((InputEvent)currentEvent).getModifiers();
 496         } else if (currentEvent instanceof ActionEvent) {
 497             modifiers = ((ActionEvent)currentEvent).getModifiers();
 498         }