1/* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24import java.io.IOException; 25import java.net.*; 26import java.util.Set; 27import static java.lang.System.out; 28 29/* 30 * @test 31 * @bug 8143923 32 * @summary java.net socket supportedOptions set depends on call order 33 * @run main/othervm SupportedOptionsSet first 34 * @run main/othervm SupportedOptionsSet second 35 */ 36 37// Run with othervm as the implementation of the supported options sets, once 38// calculated, stores them in a private static fields. 39 40public class SupportedOptionsSet { 41 42 public static void main(String[] args) throws IOException { 43 if (args[0].equals("first")) 44 first(); 45 else if (args[0].equals("second")) 46 second(); 47 } 48 49 static void first() throws IOException { 50 try (Socket s = new Socket(); 51 ServerSocket ss = new ServerSocket(); 52 DatagramSocket ds = new DatagramSocket(); 53 MulticastSocket ms = new MulticastSocket()) { 54 55 Set<?> first = s.supportedOptions(); 56 Set<?> second = ss.supportedOptions(); 57 assertNotEqual(first, second, 58 "Socket and ServerSocket should have different options."); 59 60 first = ds.supportedOptions(); 61 second = ms.supportedOptions(); 62 assertNotEqual(first, second, 63 "DatagramSocket and MulticastSocket should have different options."); 64 } 65 } 66 67 /** Tests with the order of access to supportedOptions reversed. */ 68 static void second() throws IOException { 69 try (ServerSocket ss = new ServerSocket(); 70 Socket s = new Socket(); 71 DatagramSocket ds = new DatagramSocket(); 72 MulticastSocket ms = new MulticastSocket()) { 73 74 Set<?> first = ss.supportedOptions(); 75 Set<?> second = s.supportedOptions(); 76 assertNotEqual(first, second, 77 "ServerSocket and Socket should have different options."); 78 79 first = ms.supportedOptions(); 80 second = ds.supportedOptions(); 81 assertNotEqual(first, second, 82 "MulticastSocket and DatagramSocket should have different options."); 83 84 } 85 } 86 87 static void assertNotEqual(Set<?> s1, Set<?> s2, String message) { 88 if (s1.equals(s2)) { 89 out.println("s1: " + s1); 90 out.println("s2: " + s2); 91 throw new RuntimeException(message); 92 } 93 } 94} 95