java play sound, multi-threaded programming

package com.wowowo.thread;

import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;

import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;
import javax.sound.sampled.UnsupportedAudioFileException;
import javax.sound.sampled.DataLine.Info;

public class MusicThread extends Thread{
    
    
	
	private String filename;
	
	private AudioFormat audioFormat; 
	
	private byte[] samples;
	
	public MusicThread(String filename)
	{
    
    
		 this.filename=filename;
		 
		 reverseMusic();
	}
	
	public  void reverseMusic()
	{
    
    
		  try {
    
    
			
			  AudioInputStream stream= AudioSystem.getAudioInputStream(new File(filename));
			
			  audioFormat= stream.getFormat();
			  
			  samples=getSamples(stream);
			
			
		} catch (UnsupportedAudioFileException e) {
    
    
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
    
    
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		 
		 
	}
	
	public byte[] getSamples(AudioInputStream stream)
	{
    
    
		    int size=   (int) (stream.getFrameLength()*audioFormat.getFrameSize());    
		    
		    byte[] samples=new byte[size];
		    
		    DataInputStream dataInputStream=new DataInputStream(stream);
		    
		    try {
    
    
				dataInputStream.readFully(samples);
				
				
			} catch (IOException e) {
    
    
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		    return samples;
	}
	
	public void play(InputStream source)
	{
    
    
		  int size=(int) (audioFormat.getFrameSize()*audioFormat.getSampleRate());
		  
		  byte[] buffer=new byte[size];
		  
		  SourceDataLine dataLine=null;
		  
		  DataLine.Info info=new DataLine.Info(SourceDataLine.class,audioFormat);
		  
		  try {
    
    
			dataLine=(SourceDataLine) AudioSystem.getLine(info);
			
			dataLine.open(audioFormat,size);
		} catch (LineUnavailableException e) {
    
    
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		  
		  dataLine.start();
		  
		  try {
    
    
				int numBytesRead = 0;
				while (numBytesRead != -1) {
    
    
					
					numBytesRead =
							source.read(buffer, 0, buffer.length);
					if (numBytesRead != -1) {
    
    
						dataLine.write(buffer, 0, numBytesRead);
					}
				}
				
			}
			catch (IOException ex) {
    
    
				ex.printStackTrace();
			}
			
		  dataLine.drain();
		  dataLine.close();
		  
	}
	public void run(){
    
    
		
		InputStream stream =new ByteArrayInputStream(samples);
				
		play(stream);

    }

}