I'm using win2k as OS

I've downloaded the javacomm API's from java.sun.com site and I've installed them into my jdk1.3.1_01

Someone please tell me why this simple code doesn't work?

/*

* Test.java

*

* Created on 12 novembre 2001, 22.48

*/



/**

* Remove package declaration to test this class.

*/

package M35i;



import javax.comm.*;

import java.util.Enumeration;



/**

* RS-232 comunication test class

* @author Andrea Piovesan

* @version 0.0

*/

public class Test {



/**

* Test method

*/

public static void main(String[] args) {

Enumeration enum = CommPortIdentifier.getPortIdentifiers();

CommPortIdentifier portID = (CommPortIdentifier) enum.nextElement();

// this output on my machine prints "null", why?!

System.out.println(portID);

}



}

Thanks a lot!

Andrea.