1 /*
   2  * Copyright (c) 2004, 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 /*
  25  * @test
  26  * @bug 5014447
  27  * @summary Test deserialization of UUID
  28  */
  29 
  30 import java.io.*;
  31 import java.util.*;
  32 
  33 /**
  34  * This class tests to see if UUID can be serialized and
  35  * deserialized properly. This originally failed because
  36  * the transient fields which were computed on demand are
  37  * not set back to the uninitialized value upon reconstitition.
  38  */
  39 public class Serial {
  40     public static void main(String[] args) throws Exception {
  41         UUID a = UUID.randomUUID();
  42         ByteArrayOutputStream baos = new ByteArrayOutputStream();
  43         ObjectOutputStream oos = new ObjectOutputStream(baos);
  44         oos.writeObject(a);
  45         ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
  46         ObjectInputStream ois = new ObjectInputStream(bais);
  47         UUID b = (UUID)ois.readObject();
  48         if (!a.equals(b))
  49             throw new RuntimeException("UUIDs not equal");
  50         oos.close();
  51         ois.close();
  52     }
  53 }