setNetworkInterface() of MulticastSocket is giving SocketException on V4 only solaris 8 machine.Its working fine with V4/V6 solaris machine.

How to reproduce:

Execute the following code with machine name as argument.

import java.net.*;
import java.io.*;
import java.util.*;

public class Mcast1 {

    public static void main(String[] arg) {


        try {
                String readerName=null;
                NetworkInterface niface=null;
                int MCAST_DEFAULT_PORT_V4 = 26500;

                readerName=arg[0];

                niface = NetworkInterface.getByAddr(InetAddress.getByName(readerName));

                MulticastSocket ms = new MulticastSocket(MCAST_DEFAULT_PORT_V4);

                System.out.println("Network interface" + niface);

                System.out.println("Before set network interface");
                ms.setNetworkInterface(niface);

                System.out.println("After set interface");

                InetAddress iadr = InetAddress.getByName("224.0.0.1");
                ms.joinGroup(iadr);
                System.out.println("working....");
           } catch(Exception exp) {
                exp.printStackTrace();
                System.out.println("exp message: " + exp.getMessage());
           }
    }

}


Executed the above code as:

$ java Mcast1 impulse

Output:
------
Network interfacename:hme0 (hme0) index: 2 addresses:
/10.7.130.15;

Before set network interface
java.net.SocketException: IPV6_MULTICAST_IF failed (interface has IPv4 address only?)
        at java.net.PlainDatagramSocketImpl.socketSetOption(Native Method)
        at java.net.PlainDatagramSocketImpl.setOption(PlainDatagramSocketImpl.java:243)
        at java.net.MulticastSocket.setNetworkInterface(MulticastSocket.java:392)
        at Mcast1.main(Mcast1.java:23)
exp message: IPV6_MULTICAST_IF failed (interface has IPv4 address only?)


Other Information:

Its working fine on dual stack(V4/V6) solaris 8 machine.