I am trying to play the video in LWUIT

It gives Error :
javax.microedition.media.MediaException: Prefetch error: -6

code :

/*
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* and open the template in the editor.
*/

package com.viral.mobiedu;

import com.sun.lwuit.Form;
import com.sun.lwuit.MediaComponent;
import java.io.IOException;
import java.io.InputStream;
import javax.microedition.media.Manager;
import javax.microedition.media.MediaException;
import javax.microedition.media.Player;
import javax.microedition.media.PlayerListener;
import javax.microedition.media.control.VideoControl;

/**
*
* @author Kamal Kumar Saboo
*/
public class VideoPlayer extends Form implements PlayerListener, Runnable{
MediaComponent mc;
Player player;

public VideoPlayer() {
this.setTitle("Video player");

this.show();
Thread t = new Thread(this);
t.start();
}

public void playerUpdate(Player player, String event, Object eventData) {
}

public void run() {
try {
InputStream is = getClass().getResourceAsStream("/mv.3gp");
player = Manager.createPlayer(is, "video/mpeg");

player.prefetch();
player.realize();
player.addPlayerListener(this);
VideoControl videoControl = (VideoControl) player.getControl("VideoControl");
mc = new MediaComponent(player);
mc.setPreferredH(300);
mc.setPreferredW(300);

this.addComponent(mc);
mc.start();

this.addComponent(mc);
} catch (IOException ex) {
ex.printStackTrace();
} catch (MediaException ex) {
ex.printStackTrace();
}
}

}

Please reply the Error in code or working Sample Code,

Thank You'

Regards
Rizwan khot