1 /* 2 * Copyright (c) 2001, 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 /* 24 * @test 25 * 26 * @bug 4408755 27 * 28 * @summary This tests wether it's possible to get some informations 29 * out of a closed socket. This is for backward compatibility purposes. 30 */ 31 32 import java.net.*; 33 34 public class TestClose { 35 main(String[] args)36 public static void main(String[] args) throws Exception { 37 ServerSocket ss; 38 Socket s; 39 InetAddress ad1, ad2; 40 int port1, port2, serverport; 41 42 ss = new ServerSocket(0); 43 serverport = ss.getLocalPort(); 44 s = new Socket("localhost", serverport); 45 s.close(); 46 ss.close(); 47 ad1 = ss.getInetAddress(); 48 if (ad1 == null) 49 throw new RuntimeException("ServerSocket.getInetAddress() returned null"); 50 port1 = ss.getLocalPort(); 51 if (port1 != serverport) 52 throw new RuntimeException("ServerSocket.getLocalPort() returned the wrong value"); 53 ad2 = s.getInetAddress(); 54 if (ad2 == null) 55 throw new RuntimeException("Socket.getInetAddress() returned null"); 56 port2 = s.getPort(); 57 if (port2 != serverport) 58 throw new RuntimeException("Socket.getPort() returned wrong value"); 59 ad2 = s.getLocalAddress(); 60 if (ad2 == null) 61 throw new RuntimeException("Socket.getLocalAddress() returned null"); 62 port2 = s.getLocalPort(); 63 if (port2 == -1) 64 throw new RuntimeException("Socket.getLocalPort returned -1"); 65 } 66 } 67