关于JPanel的小问题！在JPanel里面放张图片！

[青稞梅子酒]

在JPanel里面放张图片！图片和JPanel的边缘总有间隙，怎么让它没有间隙啊！
自己查了查API文档也没找到，求高手帮忙！

说明：这是图片！JPanel的背景设成了黑色！JPanel也没有设置大小！


http://zhidao.baidu.com/question/250962220.html

[青稞梅子酒]

图片挂了，大家打开上面的链接看吧！

[sasamao]

import java.awt.Rectangle;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;


public class Image extends JFrame {
JPanel jpanel;
JLabel label;
ImageIcon icon;
public Image(){
icon = new ImageIcon("pond.png");
label = new JLabel(icon);
label.setLayout(null);
label.setBounds(0,0,icon.getIconWidth(),icon.getIconHeight());

jpanel = new JPanel();
jpanel.setLayout(null);
jpanel.setBackground(Color.GRAY);
jpanel.add(label);
jpanel.setBounds(0,0,icon.getIconWidth(),icon.getIconHeight());

this.setTitle("test");
this.add(jpanel);
this.setVisible(true);
this.pack();
this.setBounds(new Rectangle(10,10,icon.getIconWidth(),icon.getIconHeight()));
this.setLocationRelativeTo(null);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public static void main(String [] args){
new Image();
}

}
主要是紅色部份的設置