test/jdk/java/net/MulticastSocket/NoLoopbackPackets.java

rev 55983 : 8229706: java/net/MulticastSocket/NoLoopbackPackets.java fails on some AIX machines

*** 27,36 ****
--- 27,37 ----
   * @library /test/lib
   * @summary Re-test IPv6 (and specifically MulticastSocket) with latest Linux & USAGI code
   */
  import java.util.*;
  import java.net.*;
+ import jdk.test.lib.NetworkConfiguration;
  import jdk.test.lib.net.IPSupport;
  
  public class NoLoopbackPackets {
      private static String osname;
  
*** 60,70 ****
              //
              List<SocketAddress> groups = new ArrayList<SocketAddress>();
              if (IPSupport.hasIPv4()) {
                  groups.add(new InetSocketAddress(InetAddress.getByName("224.1.1.1"), port));
              }
!             if (IPSupport.hasIPv6()) {
                  groups.add(new InetSocketAddress(InetAddress.getByName("::ffff:224.1.1.2"), port));
                  groups.add(new InetSocketAddress(InetAddress.getByName("ff02::1:1"), port));
              }
              if (groups.isEmpty()) {
                  System.err.println("Nothing to test: there are no network interfaces");
--- 61,74 ----
              //
              List<SocketAddress> groups = new ArrayList<SocketAddress>();
              if (IPSupport.hasIPv4()) {
                  groups.add(new InetSocketAddress(InetAddress.getByName("224.1.1.1"), port));
              }
! 
!             // see also JDK-8207404 where similar checks were added
!             NetworkConfiguration nc = NetworkConfiguration.probe();
!             if (IPSupport.hasIPv6() && nc.hasTestableIPv6Address()) {
                  groups.add(new InetSocketAddress(InetAddress.getByName("::ffff:224.1.1.2"), port));
                  groups.add(new InetSocketAddress(InetAddress.getByName("ff02::1:1"), port));
              }
              if (groups.isEmpty()) {
                  System.err.println("Nothing to test: there are no network interfaces");