SetTTLTo0.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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 * 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).
 *
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 * 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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/* @test
 * @bug 4148757
 * @summary Make sure TTL can be set to 0
 * @run main SetTTLTo0
 * @run main/othervm -Djdk.net.usePlainDatagramSocketImpl SetTTLTo0
 */

import java.net.*;

public class SetTTLTo0 {

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

        try {
            soc = new MulticastSocket();
        } catch(Exception e) {
            throw new Exception("Unexpected Exception");
        }

        soc.setTTL((byte)0);
        soc.setTimeToLive(0);

    }
}