/*

 * Copyright (c) 2002, 2012, 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 4727547

 * @summary SocksSocketImpl throws NullPointerException

 * @build SocksServer

 * @run main SocksV4Test

 */

import java.net.*;

public class SocksV4Test {

    // An unresolvable host

    static final String HOSTNAME = "doesnot.exist.invalid";

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

        // sanity before running the test

        assertUnresolvableHost(HOSTNAME);

        // Create a SOCKS V4 proxy

        SocksServer srvr = new SocksServer(0, true);

        srvr.start();

        Proxy sp = new Proxy(Proxy.Type.SOCKS,

                             new InetSocketAddress("localhost", srvr.getPort()));

        // Let's create an unresolved address

        InetSocketAddress ad = new InetSocketAddress(HOSTNAME, 1234);

        try (Socket s = new Socket(sp)) {

            s.connect(ad, 10000);

        } catch (UnknownHostException ex) {

            // OK, that's what we expected

        } catch (NullPointerException npe) {

            // Not OK, this used to be the bug

            throw new RuntimeException("Got a NUllPointerException");

        } finally {

            srvr.terminate();

        }

    }

    static void assertUnresolvableHost(String host) {

        InetAddress addr = null;

        try {

            addr = InetAddress.getByName(host);

        } catch (UnknownHostException x) {

            // OK, expected

        }

        if (addr != null)

            throw new RuntimeException("Test cannot run. resolvable address:" + addr);

    }

}