Test.java revision 1952:1755493c5774 
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 serialVersionUID and serialPersistentFields
27 *          declarations made by enum types and constants are ignored.
28 */
29
30import java.io.*;
31import java.util.Arrays;
32
33enum Foo {
34
35    foo,
36    bar {
37        private static final long serialVersionUID = 2L;
38        // bar is implemented as an inner class instance, so the following
39        // declaration would cause a compile-time error
40        // private static final ObjectStreamField[] serialPersistentFields = {
41        //    new ObjectStreamField("gub", Float.TYPE)
42        // };
43    };
44
45    private static final long serialVersionUID = 1L;
46    private static final ObjectStreamField[] serialPersistentFields = {
47        new ObjectStreamField("blargh", Integer.TYPE)
48    };
49}
50
51public class Test {
52    public static void main(String[] args) throws Exception {
53        Class[] classes =
54            { Foo.class, Foo.foo.getClass(), Foo.bar.getClass() };
55        for (int i = 0; i < classes.length; i++) {
56            ObjectStreamClass desc = ObjectStreamClass.lookup(classes[i]);
57            if (desc.getSerialVersionUID() != 0L) {
58                throw new Error(
59                    classes[i] + " has non-zero serialVersionUID: " +
60                    desc.getSerialVersionUID());
61            }
62            ObjectStreamField[] fields = desc.getFields();
63            if (fields.length > 0) {
64                throw new Error(
65                    classes[i] + " has non-empty list of fields: " +
66                    Arrays.asList(fields));
67            }
68        }
69    }
70}
71