1 /*
   2  * Copyright 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 /* @test
  25  * @bug 4838379
  26  * @summary Verify that enum classes present in a serialization stream cannot
  27  *          be resolved by the receiver to non-enum classes, and vice-versa.
  28  *
  29  * @compile -source 1.5 Write.java
  30  * @run main Write
  31  * @clean Write
  32  * @compile -source 1.5 Read.java
  33  * @run main Read
  34  * @clean Read
  35  */
  36 
  37 import java.io.*;
  38 
  39 enum EnumToNonEnum { foo }
  40 
  41 class NonEnumToEnum implements Serializable {
  42     private static final long serialVersionUID = 0L;
  43 }
  44 
  45 public class Write {
  46     public static void main(String[] args) throws Exception {
  47         write(EnumToNonEnum.class, "0.ser");
  48         write(NonEnumToEnum.class, "1.ser");
  49         write(EnumToNonEnum.foo, "2.ser");
  50         write(new NonEnumToEnum(), "3.ser");
  51     }
  52 
  53     static void write(Object obj, String filename) throws Exception {
  54         ObjectOutputStream oout =
  55             new ObjectOutputStream(new FileOutputStream(filename));
  56         oout.writeObject(obj);
  57         oout.close();
  58     }
  59 }