JFrame中无法显示图像界面
public class JEditorPane1 {
	public static void main(String[] args)  
	{
	  new LinkWin();
	}
}
class LinkWin extends JFrame implements ActionListener,Runnable,HyperlinkListener
{ Button button ;
   URL url;	
   TextField text;
   JEditorPane editPane;
   byte b[]=new byte[118];
   Thread thread;
   public LinkWin()
   {  text=new TextField(20);
      editPane=new JEditorPane();
      editPane.setEditable(false);
      editPane.add(this);
	 button=new Button("确定");
	 button.addActionListener(this);
	 thread=new Thread(this);   
	 Panel p=new Panel();
	 p.add(new Label("输入网址:"));
	 p.add(text);
	 p.add(button);
	 ScrollPane scroll=new ScrollPane();
	 scroll.add(editPane);
	 add(scroll,BorderLayout.CENTER);
	 add(p,BorderLayout.NORTH);
	 setBounds(160,60,360,300);
	 setVisible(true);
	 validate();
	 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);	  
	}	    
  public void hyperlinkUpdate(HyperlinkEvent e)
   { if(e.getEventType()==HyperlinkEvent.EventType.ACTIVATED)
     { try{editPane.setPage(e.getURL());}  
       catch(Exception ee) { text.setText(""+url);}	   
     }
   }
  public void actionPerformed(ActionEvent e)
   {
	 if(!thread.isAlive())
      { thread=new Thread(this);	   
      }
     try
      { thread.start();
      }
     catch(Exception ee)
      { text.setText("正在读取"+url);
      }
   }
  public void run()
  {try
    { editPane.setText(null);
	  url=new URL(text.getText().trim());
	  editPane.setPage(url);
    }
   catch(Exception el){text.setText(""+el);return;}    
  }
}
上面的程序是JEditor对象显示URL资源,导入的类这儿被我省了,运行程序时出现:
Exception in thread "main" 
java.lang.IllegalArgumentException: adding a window to a container
	at java.awt.Container.checkNotAWindow(Container.java:483)
	at java.awt.Container.addImpl(Container.java:1084)
	at java.awt.Container.add(Container.java:410)
	at javaweb.LinkWin.<init>(JEditorPane1.java:39)
	at javaweb.JEditorPane1.main(JEditorPane1.java:24)
,这儿无法显示图像界面,这儿有JFrame容器,怎么还需要窗口??
------解决方案--------------------
editPane.add(this);
??
这句话去掉。怎么在editPanel里add JFrame呢。