/*

 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.

 * 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/**

 * @test

 * @bug 4922568 8133015

 * @run main/othervm -Djava.net.preferIPv4Stack=true IsHostReachableBug

 * @summary  isReachable returns true for IPv6

 */

import java.net.*;

import java.io.*;

public class IsHostReachableBug {

    public static void main(String[] args) throws Exception{

                String hostName = "fec0::1:a00:20ff:feed:b08d";

                BufferedReader in = null;

                FileWriter fw = null;

                String inString = " ";

                if (args.length > 0)

                        hostName = args[0];

                InetAddress addr = InetAddress.getByName(hostName);

                System.out.println("InetAddress is : " + addr);

                System.out.println("Is InetAddress instance of Inet6Address ? "

+ (addr instanceof Inet6Address));

                if (!addr.isReachable(10000)){

                        System.out.println(hostName + " is not reachable");

                }else {

                        throw new RuntimeException ("IPv6 address should not be reachable");

                }

    }

}