/*
 * To build this test,
 * (1) Make sure that the OpenJDK is installed from ports:
 *
 *       pkg install openjdk
 *
 * (2) Rename this file to: MulticastTest.java
 * (3) Build it:
 *     
 *        javac MulticastTest.java
 *
 *  (4) Run it:
 *
 *        java MulticastTest.java
 *
 */

import java.net.InetAddress;
import java.net.MulticastSocket;

class MulticastTest
{

    public static void main(String[] args)
    {
       try {
        int PORT = Integer.getInteger("hudson.udp",33848);
 
        InetAddress MULTICAST = InetAddress.getByAddress(new byte[]{(byte)239, (byte)77, (byte)124, (byte)213});
        MulticastSocket mcs = new MulticastSocket(PORT);
        mcs.joinGroup(MULTICAST);
       } catch (Exception e) {
          e.printStackTrace();
          System.exit(-1);  
       }
    }
}