JAVA的sun包问题?望解决 不甚感激

package 声音;
import java.applet.*;
import java.io.*;
import sun.audio.*;
import java.awt.*;
public class view{
public static void main(String args[]){
try {

FileInputStream fileau=new FileInputStream("sloop.au");

AudioStream as=new AudioStream(fileau);

AudioPlayer.player.start(as);

} catch (Exception e) {

System.out.println(e);
}

}

}

以上是源码

AudioStream 提示的问题是 Access restriction: The type 'AudioStream' is not API (restriction on required library 'D:\java_jre\lib\rt.jar')
有大牛能解决吗

http://www.blogjava.net/keweibo/articles/376754.html