java仿qq发送表情问题

package com.qq.client.tools;

import java.awt.*;
import java.awt.event.*;
import java.awt.font.TextLayout;

import javax.swing.*;
import com.qq.client.view.*;
/**

• Title:

  *

• Description:

  *

• Copyright: Copyright (c) 2007

  *

• Company:

  *
• @author not attributable

• @version 1.0
  /
  public class face extends JWindow {
  private static final long serialVersionUID = 1L;
  
  GridLayout gridLayout1 = new GridLayout(6,3);
  
  JLabel[] ico=new JLabel[18];
  JLabel[] icc=new JLabel[18];/放表情*/
  
  int i;
  
  QqChat owner;
  
  String[] intro = {"","","","","","","","","",
  "","","","","","","","",""
  };/*图片描述*/
  
  public face (QqChat owner) {
  
  super(owner);
  
  this.owner=owner;
  
  try {
  
  init();
  
  this.setAlwaysOnTop(true);
  
  }
  
  catch (Exception exception) {
  
  exception.printStackTrace();
  
  }
  
  }
  
  private void init() throws Exception {
  
  this.setPreferredSize(new Dimension(38*6,50*3));
  
  JPanel p = new JPanel();
  
  p.setOpaque(true);
  
  this.setContentPane(p);
  
  p.setLayout(gridLayout1);
  
  p.setBackground(SystemColor.text);
  
  String fileName = "";
  
  for(i=0;i <ico.length;i++){
  
  fileName= "emjio/"+ i +".png";/*修改图片路径*/
  
  ico[i]=new JLabel(new ImageIcon(fileName));
  //icc[i] =new JLabel(new ChatPic(face.class.getResource(fileName),i),SwingConstants.CENTER);
  
  ico[i].setBorder(BorderFactory.createLineBorder(new Color(225,225,225), 1));
  
  ico[i].setToolTipText(i+"");
  
  ico[i].addMouseListener(new MouseAdapter(){
  
  public void mouseClicked(MouseEvent e){
  
  if(e.getButton()==1){
  
  JLabel cubl = (JLabel)(e.getSource());
  
  ChatPic cupic = (ChatPic) (cubl.getIcon());
  
  owner.insertSendPic(cupic);
  
  cubl.setBorder(BorderFactory.createLineBorder(new Color(225,225,225), 1));

                  getObj().dispose();  
              }  
          }  
          @Override  
          public void mouseEntered(MouseEvent e) {  
              ((JLabel)e.getSource()).setBorder(BorderFactory.createLineBorder(Color.BLUE));  
          }  
          @Override  
          public void mouseExited(MouseEvent e) {  
              ((JLabel)e.getSource()).setBorder(BorderFactory.createLineBorder(new Color(225,225,225), 1));  
          }   
  
      });   
      p.add(ico[i]);   
  }   
  p.addMouseListener(new MouseAdapter(){  
      @Override  
      public void mouseExited(MouseEvent e) {  
          getObj().dispose();   
      }  
  
  });  
  

  }
  
  @Override
  
  public void setVisible(boolean show) {
  
  if (show) {
  
  determineAndSetLocation();
  
  }
  
  super.setVisible(show);
  
  }

  private void determineAndSetLocation() {
  
  Point loc = owner.getPicBtn().getLocationOnScreen();/*控件相对于屏幕的位置*/
  
  setBounds(loc.x-getPreferredSize().width/3, loc.y-getPreferredSize().height,
  
  getPreferredSize().width, getPreferredSize().height);
  
  }
  
  private JWindow getObj(){
  
  return this;
  
  }

  public static void main(String[] args){

  }
  }

package com.qq.client.tools;

import java.net.URL;
import javax.swing.ImageIcon;

public class ChatPic extends ImageIcon{

/**
*图片描述

*/

private static final long serialVersionUID = 1L;

int im;//图片代号

    public int getIm() {  
        return im;  
    }  
    public void setIm(int im) {  
        this.im = im;  
    }  
 public ChatPic(URL url,int im){  
  super(url);  
  this.im = im;  
 }  


public static void main(String[] args) {
    // TODO 自动生成的方法存根

}

}

点击表情后提示错误
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: javax.swing.ImageIcon cannot be cast to com.qq.client.tools.ChatPic
at com.qq.client.tools.face$1.mouseClicked(face.java:60)

ChatPic cupic = (ChatPic) (cubl.getIcon()); 
错误的是这一行

强制类型转换错误 建议debug或打印一下cubl.getIcon()类型