1 /*
   2  * Copyright (c) 1999, 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  * @bug 4186885
  26  * @clean OriginalClass EvolvedClass
  27  * @build OriginalClass
  28  * @run main OriginalClass
  29  * @build EvolvedClass
  30  * @run main EvolvedClass
  31  * @summary To ensure that during deserializing classes, only the highest
  32  *          non-serializable class in the hierarchy has its no-arg constructor
  33  *          invoked.
  34  *
  35  */
  36 
  37 import java.io.*;
  38 public class OriginalClass {
  39 
  40     public static void main(String args[]) throws Exception{
  41         ASubClass corg = new ASubClass(1);
  42         ASubClass cnew = null;
  43 
  44         // Serialize the subclass
  45         FileOutputStream fo = new FileOutputStream("parents.ser");
  46         try {
  47             ObjectOutputStream so = new ObjectOutputStream(fo);
  48             so.writeObject(corg);
  49             so.flush();
  50         } finally {
  51             fo.close();
  52         }
  53 
  54         System.out.println("Printing the serialized class: ");
  55         System.out.println();
  56         System.out.println(corg);
  57     }
  58 }
  59 
  60 
  61 class ASubClass implements Serializable {
  62     int num;
  63 
  64     ASubClass(int num) {
  65         this.num = num;
  66     }
  67 
  68     public String toString() {
  69         return ("\nNum:  " + num);
  70     }
  71 }