1/*
2 * Copyright (c) 1997, 2007, 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 4070080
26 *
27 * @summary  Test reading an evolved class serialization into the original class
28 *           version. Class evolved by adding a superclass.
29 *
30 * @clean A WriteAddedSuperClass ReadAddedSuperClass ReadAddedSuperClass2
31 * @compile WriteAddedSuperClass.java
32 * @run main WriteAddedSuperClass
33 * @clean A AddedSuperClass
34 * @compile ReadAddedSuperClass.java
35 * @run main ReadAddedSuperClass
36 * @clean A
37 * @compile WriteAddedSuperClass.java
38 * @run main WriteAddedSuperClass
39 * @clean A AddedSuperClass
40 * @compile ReadAddedSuperClass2.java
41 * @run main ReadAddedSuperClass2
42 *
43 */
44
45 /*
46 *  Part a of test serializes an instance of an evolved class to a serialization stream.
47 *  Part b of test deserializes the serialization stream into an instance of
48 *  the original class.
49 *
50 */
51
52import java.io.*;
53
54class AddedSuperClass implements Serializable {
55    // Needed at least one field to recreate failure.
56    int field;
57}
58
59class A extends AddedSuperClass implements Serializable  {
60    // Version 1.1 of class A.  Added superclass NewSerializableSuper.
61    private static final long serialVersionUID = 1L;
62}
63
64public class WriteAddedSuperClass {
65    public static void main(String args[]) throws IOException {
66        A a = new A();
67        File f = new File("tmp.ser");
68        ObjectOutput out =
69            new ObjectOutputStream(new FileOutputStream(f));
70        out.writeObject(a);
71        out.close();
72    }
73}
74