1 /*

     2  * Copyright 2002-2003 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 4681556

    27  * @summary Wrong text if a read is performed on a socket after it

    28  *      has been closed

    29  */

    30 

    31 import java.io.*;

    32 import java.net.*;

    33 

    34 public class SocketClosedException {

    35 

    36     /*

    37      * Is the server ready to serve?

    38      */

    39     volatile static boolean serverReady = false;

    40 

    41     /*

    42      * Define the server side of the test.

    43      *

    44      * If the server prematurely exits, serverReady will be set to true

    45      * to avoid infinite hangs.

    46      */

    47     static void doServerSide() throws Exception {

    48         ServerSocket serverSocket = new ServerSocket(serverPort);

    49         serverPort = serverSocket.getLocalPort();

    50 

    51         /*

    52          * Signal Client, we're ready for a connect.

    53          */

    54         serverReady = true;

    55 

    56         Socket socket = serverSocket.accept();

    57 

    58         InputStream is = socket.getInputStream();

    59         OutputStream os = socket.getOutputStream();

    60 

    61         os.write(85);

    62         os.flush();

    63         socket.close();

    64     }

    65 

    66     /*

    67      * Define the client side of the test.

    68      *

    69      * If the server prematurely exits, serverReady will be set to true

    70      * to avoid infinite hangs.

    71      */

    72     static void doClientSide() throws Exception {

    73 

    74         /*

    75          * Wait for server to get started.

    76          */

    77         while (!serverReady) {

    78             Thread.sleep(5000);

    79         }

    80 

    81         Socket socket = new Socket("localhost", serverPort);

    82         InputStream is = socket.getInputStream();

    83         OutputStream os = socket.getOutputStream();

    84 

    85         int read = is.read();

    86         socket.close();

    87         read = is.read();

    88     }

    89 

    90     static int serverPort = 0;

    91     static Exception serverException = null;

    92 

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

    94         startServer();

    95         try {

    96             doClientSide();

    97         } catch (SocketException e) {

    98             if (!e.getMessage().equalsIgnoreCase("Socket closed")) {

    99                 throw new Exception("Received a wrong exception message: " +

   100                                         e.getMessage());

   101             }

   102             System.out.println("PASSED: received the right exception message: "

   103                                         + e.getMessage());

   104         }

   105         if (serverException != null) {

   106             throw serverException;

   107         }

   108     }

   109 

   110     static void startServer() {

   111         Thread serverThread = new Thread() {

   112             public void run() {

   113                 try {

   114                     doServerSide();

   115                 } catch (Exception e) {

   116                     /*

   117                      * server thread just died.

   118                      * Release the client, if not active already...

   119                      */

   120                     System.err.println("Server died...");

   121                     serverReady = true;

   122                     serverException = e;

   123                 }

   124             }

   125         };

   126         serverThread.start();

   127     }

   128 }