From a37d7bb5f3f1463d08295a1d465ed9cf9475eee8 Mon Sep 17 00:00:00 2001
From: norman <norman@apache.org>
Date: Wed, 11 Apr 2012 08:09:03 +0200
Subject: [PATCH] Make sure multicast tests pass on all os'es

---
 .../transport/socket/AbstractDatagramMulticastTest.java        | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/testsuite/src/test/java/io/netty/testsuite/transport/socket/AbstractDatagramMulticastTest.java b/testsuite/src/test/java/io/netty/testsuite/transport/socket/AbstractDatagramMulticastTest.java
index 673688e10d..efdff083d0 100644
--- a/testsuite/src/test/java/io/netty/testsuite/transport/socket/AbstractDatagramMulticastTest.java
+++ b/testsuite/src/test/java/io/netty/testsuite/transport/socket/AbstractDatagramMulticastTest.java
@@ -78,7 +78,8 @@ public abstract class AbstractDatagramMulticastTest {
         // check if the NetworkInterface is null, this is the case on my ubuntu dev machine but not on osx and windows.
         // if so fail back the the first interface
         if (iface == null) {
-            iface = NetworkInterface.getByIndex(0);
+            // use nextElement() as NetWorkInterface.getByIndex(0) returns null
+            iface = NetworkInterface.getNetworkInterfaces().nextElement();
         }
         sb.setOption("networkInterface", iface);
         sb.setOption("reuseAddress", true);