/*

 * Copyright (c) 2016, 2018, 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

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 */

import java.io.IOException;

import java.net.*;

import java.util.Set;

import static java.lang.System.out;

import jdk.test.lib.net.IPSupport;

/*

 * @test

 * @bug 8143923

 * @library /test/lib

 * @summary java.net socket supportedOptions set depends on call order

 * @run main/othervm SupportedOptionsSet first

 * @run main/othervm SupportedOptionsSet second

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

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

 */

// Run with othervm as the implementation of the supported options sets, once

// calculated, stores them in a private static fields.

public class SupportedOptionsSet {

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

        IPSupport.throwSkippedExceptionIfNonOperational();

        if (args[0].equals("first"))

            first();

        else if (args[0].equals("second"))

            second();

    }

    static void first() throws IOException {

        try (Socket s = new Socket();

             ServerSocket ss = new ServerSocket();

             DatagramSocket ds = new DatagramSocket();

             MulticastSocket ms = new MulticastSocket()) {

            Set<?> first = s.supportedOptions();

            Set<?> second = ss.supportedOptions();

            assertNotEqual(first, second,

                 "Socket and ServerSocket should have different options.");

            first = ds.supportedOptions();

            second = ms.supportedOptions();

            assertNotEqual(first, second,

                "DatagramSocket and MulticastSocket should have different options.");

        }

    }

    /** Tests with the order of access to supportedOptions reversed.  */

    static void second() throws IOException {

        try (ServerSocket ss = new ServerSocket();

             Socket s = new Socket();

             DatagramSocket ds = new DatagramSocket();

             MulticastSocket ms = new MulticastSocket()) {

            Set<?> first = ss.supportedOptions();

            Set<?> second = s.supportedOptions();

            assertNotEqual(first, second,

                "ServerSocket and Socket should have different options.");

            first = ms.supportedOptions();

            second = ds.supportedOptions();

            assertNotEqual(first, second,

                "MulticastSocket and DatagramSocket should have different options.");

        }

    }

    static void assertNotEqual(Set<?> s1, Set<?> s2, String message) {

        if (s1.equals(s2)) {

            out.println("s1: " + s1);

            out.println("s2: " + s2);

            throw new RuntimeException(message);

        }

    }

}