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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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package org.jgroups.tests;

import org.jgroups.util.Util;

import java.io.IOException;
import java.net.*;

/**
 * Tests 2 MulticastSockets joining the same multicast address and port (this should be possible).
 * This test fails when running as a native image under GraalVM 19.2.0.
 * @author Bela Ban
 * @since  4.1.5
 */
public class MulticastTest2 {

    protected static final InetAddress MCAST_ADDR, BIND_ADDR;
    protected static final int MCAST_PORT=7600;

    static {
        try {
            MCAST_ADDR=InetAddress.getByName("239.8.8.8");
            BIND_ADDR=InetAddress.getLocalHost();
        }
        catch(UnknownHostException e) {
            throw new RuntimeException(e);
        }
    }

    public static void main(String[] args) throws Exception {
        MulticastSocket sock1=create();
        MulticastSocket sock2=create(); // this works under GraalVM 19.2.0
        System.out.printf("sock1: %s\nsock2: %s\n", sock1.getLocalSocketAddress(), sock2.getLocalSocketAddress());
        Util.close(sock1, sock2);

        sock1=new MulticastSocket(MCAST_PORT);
        sock2=new MulticastSocket(MCAST_PORT);  // this fails under GraalVM 19.2.0
    }



    protected static MulticastSocket create() throws IOException {
        MulticastSocket sock=null;
        SocketAddress saddr=new InetSocketAddress(MCAST_ADDR, MCAST_PORT);
        sock=new MulticastSocket(saddr);
        if(BIND_ADDR != null)
            sock.setNetworkInterface(NetworkInterface.getByInetAddress(BIND_ADDR));
        return sock;
    }

}