return null;
        }
        return this.target.get();
    }

    public Action getAction() {
	  return action;
    }

    private void writeObject(ObjectOutputStream s) throws IOException {
        s.defaultWriteObject();
        s.writeObject(getTarget());
    }

    @SuppressWarnings("unchecked")
    private void readObject(ObjectInputStream s) 
                     throws IOException, ClassNotFoundException {
        s.defaultReadObject();
        T target = (T)s.readObject();
        if (target != null) {
            setTarget(target);
        }
    }


    private static class OwnedWeakReference<U extends JComponent> extends
                              WeakReference<U> {
        private ActionPropertyChangeListener owner;

        OwnedWeakReference(U target, ReferenceQueue<? super U> queue,
                           ActionPropertyChangeListener owner) {
	    super(target, queue);
	    this.owner = owner;
	}

        public ActionPropertyChangeListener getOwner() {
	    return owner;
	}
    }
}