Make sure multicast tests pass on all os'es
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@ -28,6 +28,7 @@ import io.netty.channel.socket.DatagramChannelFactory;
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import io.netty.testsuite.util.TestUtils;
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import io.netty.util.internal.ExecutorUtil;
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.NetworkInterface;
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import java.util.concurrent.CountDownLatch;
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@ -72,7 +73,14 @@ public abstract class AbstractDatagramMulticastTest {
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int port = TestUtils.getFreePort();
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NetworkInterface iface = NetworkInterface.getNetworkInterfaces().nextElement();
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NetworkInterface iface = NetworkInterface.getByInetAddress(InetAddress.getLocalHost());
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// check if the NetworkInterface is null, this is the case on my ubuntu dev machine but not on osx and windows.
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// if so fail back the the first interface
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if (iface == null) {
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// use nextElement() as NetWorkInterface.getByIndex(0) returns null
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iface = NetworkInterface.getNetworkInterfaces().nextElement();
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}
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sb.setOption("networkInterface", iface);
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sb.setOption("reuseAddress", true);
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