/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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*/
import java.io.IOException;
import java.io.UncheckedIOException;
import java.net.InetAddress;
import java.net.MulticastSocket;
import java.net.NetworkInterface;
import jdk.test.lib.NetworkConfiguration;
import jdk.test.lib.net.IPSupport;
/**
* @ test
* @ bug 4091811 4148753 4102731
* @ summary Test java . net . MulticastSocket joinGroup and leaveGroup
* @ library / test / lib
* @ build jdk . test . lib . NetworkConfiguration
* jdk . test . lib . Platform
* @ run main JoinLeave
* @ run main / othervm - Djava . net . preferIPv4Stack = true JoinLeave
*/
public class JoinLeave {
public static void main(String args[]) throws IOException {
IPSupport.throwSkippedExceptionIfNonOperational();
InetAddress ip4Group = InetAddress.getByName("224.80.80.80" );
InetAddress ip6Group = InetAddress.getByName("ff02::a" );
NetworkConfiguration nc = NetworkConfiguration.probe();
nc.ip4MulticastInterfaces().forEach(nic -> joinLeave(ip4Group, nic));
nc.ip6MulticastInterfaces().forEach(nic -> joinLeave(ip6Group, nic));
}
static void joinLeave(InetAddress group, NetworkInterface nif) {
System.out.println("Joining:" + group + " on " + nif);
try (MulticastSocket soc = new MulticastSocket()) {
soc.setNetworkInterface(nif);
soc.joinGroup(group);
soc.leaveGroup(group);
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
}
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