1/*
2 * Copyright (c) 2011, 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 * Portions Copyright (c) 2011 IBM Corporation
26 */
27
28/*
29 * @test
30 * @bug 6312706
31 * @summary A serialized EnumMap can be successfully de-serialized.
32 * @author Neil Richards <neil.richards@ngmr.net>, <neil_richards@uk.ibm.com>
33 */
34
35import java.io.ByteArrayInputStream;
36import java.io.ByteArrayOutputStream;
37import java.io.IOException;
38import java.io.ObjectInputStream;
39import java.io.ObjectOutputStream;
40import java.io.PrintWriter;
41import java.io.StringWriter;
42import java.util.EnumMap;
43
44public class SimpleSerialization {
45    private enum TestEnum { e00, e01, e02, e03, e04, e05, e06, e07 }
46    public static void main(final String[] args) throws Exception {
47        final EnumMap<TestEnum, String> enumMap = new EnumMap<>(TestEnum.class);
48
49        enumMap.put(TestEnum.e01, TestEnum.e01.name());
50        enumMap.put(TestEnum.e04, TestEnum.e04.name());
51        enumMap.put(TestEnum.e05, TestEnum.e05.name());
52
53        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
54        final ObjectOutputStream oos = new ObjectOutputStream(baos);
55
56        oos.writeObject(enumMap);
57        oos.close();
58
59        final byte[] data = baos.toByteArray();
60        final ByteArrayInputStream bais = new ByteArrayInputStream(data);
61        final ObjectInputStream ois = new ObjectInputStream(bais);
62
63        final Object deserializedObject = ois.readObject();
64        ois.close();
65
66        if (false == enumMap.equals(deserializedObject)) {
67            throw new RuntimeException(getFailureText(enumMap, deserializedObject));
68        }
69    }
70
71    private static String getFailureText(final Object orig, final Object copy) {
72        final StringWriter sw = new StringWriter();
73        final PrintWriter pw = new PrintWriter(sw);
74
75        pw.println("Test FAILED: Deserialized object is not equal to the original object");
76        pw.print("\tOriginal: ");
77        printObject(pw, orig).println();
78        pw.print("\tCopy:     ");
79        printObject(pw, copy).println();
80
81        pw.close();
82        return sw.toString();
83    }
84
85    private static PrintWriter printObject(final PrintWriter pw, final Object o) {
86        pw.printf("%s@%08x", o.getClass().getName(), System.identityHashCode(o));
87        return pw;
88    }
89}
90