applet播放音频出现的java.lang.OutOfMemoryError

Question

程序代码如下，帮看看
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;public class au extends JApplet implements ActionListener{
AudioClip clip;
Button button_play,button_loop,button_stop;
Panel panel=new Panel();
public void init() {
        clip=getAudioClip(getCodeBase(),"audio/06.wav");
        button_play=new Button("开始播放");
        button_loop=new Button("循环播放");
        button_stop=new Button("停止播放");
        button_play.addActionListener(this);
        button_stop.addActionListener(this);
        button_loop.addActionListener(this);
        panel.add(button_play);
        panel.add(button_loop);
        panel.add(button_stop);
        getContentPane().add(panel,BorderLayout.NORTH);
    }
    public void stop()
    {
clip.stop();
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==button_play)
{
clip.play();
}else if(e.getSource()==button_loop)
{
clip.loop();
}
if(e.getSource()==button_stop)
{
clip.stop();
}
}
}