test/java/net/MulticastSocket/TestDefaults.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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 *
 * 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).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 4488458
 * @summary Test that MutlicastSocket.getInterface, getTimeToLive, and
 *          getLoopbackMode work as expected on Linux 2.2 kernel
 *          if IPv6 is enabled.
 */
import java.net.*;

public class TestDefaults {

    public static void main(String args[]) throws Exception {
        MulticastSocket mc = new MulticastSocket();

        int ttl = mc.getTimeToLive();
        InetAddress ia = mc.getInterface();
        boolean mode = mc.getLoopbackMode();

        System.out.println("Default multicast settings:");
        System.out.println("      ttl: " + ttl);
        System.out.println("interface: " + ia);
        System.out.println(" loopback: " + mode);

        if (ttl != 1) {
            throw new Exception("Default ttl != 1  -- test failed!!!");
        }

    }
}