Player pessado

import jaco.mp3.player.MP3Player;      
    
import java.awt.BorderLayout;    
import java.awt.event.ActionEvent;    
import java.awt.event.ActionListener;    
import java.io.File;      
import java.util.Random;      
    
import javax.swing.JButton;    
import javax.swing.JLabel;    
import javax.swing.JOptionPane;    
import javax.swing.JPanel;    
      
public class Tocador extends JPanel{      
      
    private static final File[] listMusic = new File("musica").listFiles();  //poem a pasta das musicas      
    private static final File[] listComercial = new File("comercial").listFiles(); //poem a pasta dos comerciais      
    private Thread control;      
    private MP3Player mp3;      
    private String t1,t2,t3;    
    private JLabel label;    
    private JButton leave;    
    private int index;    
          
    public Tocador()      
    {      
        super(new BorderLayout());    
            
        label = new JLabel();    
        leave = new JButton("Sair");    
            
        leave.addActionListener(new ActionListener() {    
                
            @Override    
            public void actionPerformed(ActionEvent arg0) {    
                int i = JOptionPane.showConfirmDialog(null ,"Deseja fechar a aplicação?",       
                        "Saída",JOptionPane.YES_NO_OPTION);       
                if (i == JOptionPane.YES_OPTION ) {       
                      System.exit(0);       
                }         
            }    
        });    
            
        this.add(label, BorderLayout.NORTH);    
        this.add(leave, BorderLayout.CENTER);    
          
    }     
        
    public void play()    
    {    
        Random r = new Random();    
            
         while(true)      
         {      
             if(control == null)      
             {      
                    final File file1 = listMusic[r.nextInt(listMusic.length)];      
                    final File file2 = listMusic[r.nextInt(listMusic.length)];          
                    final File file3 = listComercial[r.nextInt(listComercial.length)];      
                        
                    
                    t1 = file1.getName();    
                    t2 = file2.getName();    
                    t3 = file3.getName();    
                        
                    control = new Thread(new Runnable() {      
                       
                 @Override      
                 public void run() {      
                     mp3 = new MP3Player(file1,file2,file3);      
                     mp3.play();      
                     mp3IsStillPlaying();      
                   }      
                });      
               control.start();      
           }      
           else      
           {      
               if(!control.isAlive())      
               {      
                   control.interrupt();      
                   control = null;      
               }      
           }      
        }      
    }    
        
    private String musicListener(int op)    
    {    
        switch(op)    
        {    
           case 1:    
               return t1;    
           case 2:    
               return t2;    
           case 3:    
               return t3;    
           default:    
               return "";    
       }    
    }    
          
    private void mp3IsStillPlaying()      
    {      
        boolean playing = true;      
        index = 1;    
        label.setText(musicListener(index));    
        while(playing)      
        {      
            if(mp3.isStopped())      
            {      
                //momento em que troca de música    
                index++;    
                label.setText(musicListener(index));    
                try {      
                    Thread.sleep(3000);      
                    if(mp3.isStopped())      
                    {      
                        playing = false;      
                    }      
                } catch (InterruptedException e) {      
                    e.printStackTrace();      
                }      
            }      
        }      
    }      
}