Problem with audioClip.play

I have written a simple code to play a wav file on a applet. Sometimes the audioClip.play() method doesn't play anything(inspite of the fact that the wav file is correct, i have confirmed that by playing the same wav in windows media player). Is something wrong with the code below??
Also is there any way that i can programmatically figure out that play doesn't play anything...
Thanks..
N.
public class playerApplet extends Applet implements ActionListener {
AudioClip clip;
URL outputWavURL;
public void actionPerformed(ActionEvent e) {
if(e.getSource==playButton) {
generateWavFile(); // native method to generate the wav file..
if(clip!=null)
     clip.stop();
outputWavURL = new URL("file", "localhost", "output.wav");
     clip = this.newAudioClip(outputWavURL);
     clip.play();
}

As an experiment, try adding a Thread.sleep (2000); after your clip.play(); statement. I'm having similar symptoms in an application I'm writing and so far that is the only solution I've found to get the sound out. I was searching the groups looking for answers to my problem when I saw your question.
P.S. You'll need to surround the Thread.sleep in an appropriate try/catch block.

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