[aspectwerkz-user] how can weave advice in JFrame

user，

   I want weave an before advice into mehtod JFrame.add(Component comp)， but It can not run.

   My test souce code is very simple: 


   public class Gui2 {

	public static void main(String[] args) {

		JFrame frame = new JFrame();
		frame.setTitle("TestFrame");
		frame.setSize(200, 200);
		frame.setLocation(200, 300);
		frame.addWindowListener(new WindowAdapter() {
			public void windowCLosing(WindowEvent e) {
				System.exit(0);
			}
		});
		JButton bt1 = new JButton("Bt1");
		frame.add(bt1, "Center");           <<<<
		frame.show();    		

	}
}
 
	
     How can get it ? 
　　             				

　　　　　　　　Shiqiang Guo
　　　　　　　　[email protected]
　　　　　　　　　　2005-07-27