1 /*

     2  * Copyright 2001 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  * @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 

    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 }