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/*
* 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.IOException;
import java.net.*;
import java.util.Set;
import static java.lang.System.out;
/*
* @test
* @bug 8143923
* @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 {
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);
}
}
}
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