util/Collections/Ser.java

/*
 * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug 4190323
 * @summary EMPTY_SET, EMPTY_LIST, and the collections returned by
 *          nCopies and singleton were spec'd to be serializable, but weren't.
 */

import java.io.*;
import java.util.*;

public class Ser {
    public static void main(String[] args) throws Exception {

        try {
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            ObjectOutputStream out = new ObjectOutputStream(bos);
            out.writeObject(Collections.EMPTY_SET);
            out.flush();
            ObjectInputStream in = new ObjectInputStream(
                    new ByteArrayInputStream(bos.toByteArray()));

            if (!Collections.EMPTY_SET.equals(in.readObject()))
                throw new RuntimeException("empty set Ser/Deser failure.");
        } catch (Exception e) {
            throw new RuntimeException("Failed to serialize empty set:" + e);
        }

        try {
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            ObjectOutputStream out = new ObjectOutputStream(bos);
            out.writeObject(Collections.EMPTY_LIST);
            out.flush();
            ObjectInputStream in = new ObjectInputStream(
                    new ByteArrayInputStream(bos.toByteArray()));

            if (!Collections.EMPTY_LIST.equals(in.readObject()))
                throw new RuntimeException("empty list Ser/Deser failure.");
        } catch (Exception e) {
            throw new RuntimeException("Failed to serialize empty list:" + e);
        }

        try {
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            ObjectOutputStream out = new ObjectOutputStream(bos);
            Set gumby = Collections.singleton("gumby");
            out.writeObject(gumby);
            out.flush();
            ObjectInputStream in = new ObjectInputStream(
                    new ByteArrayInputStream(bos.toByteArray()));

            if (!gumby.equals(in.readObject()))
                throw new RuntimeException("Singleton Ser/Deser failure.");
        } catch (Exception e) {
            throw new RuntimeException("Failed to serialize singleton:" + e);
        }

        try {
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            ObjectOutputStream out = new ObjectOutputStream(bos);
            List gumbies = Collections.nCopies(50, "gumby");
            out.writeObject(gumbies);
            out.flush();
            ObjectInputStream in = new ObjectInputStream(
                    new ByteArrayInputStream(bos.toByteArray()));

            if (!gumbies.equals(in.readObject()))
                throw new RuntimeException("nCopies Ser/Deser failure.");
        } catch (Exception e) {
            throw new RuntimeException("Failed to serialize nCopies:" + e);
        }
    }
}
Revision:	1.3
Committed:	Sat Oct 21 00:44:23 2017 UTC (6 years, 6 months ago) by jsr166
Branch:	MAIN
Changes since 1.2:	+1 -1 lines
Log Message:	jtreg @test comments are not javadoc comments
#	User	Rev	Content
1	jsr166	1.1	/*
2	jsr166	1.2	* Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
3	jsr166	1.1	* 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	jsr166	1.2	* 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	jsr166	1.1	*/
23
24	jsr166	1.3	/*
25	jsr166	1.1	* @test
26			* @bug 4190323
27			* @summary EMPTY_SET, EMPTY_LIST, and the collections returned by
28			* nCopies and singleton were spec'd to be serializable, but weren't.
29			*/
30
31			import java.io.*;
32			import java.util.*;
33
34			public class Ser {
35			public static void main(String[] args) throws Exception {
36
37			try {
38			ByteArrayOutputStream bos = new ByteArrayOutputStream();
39			ObjectOutputStream out = new ObjectOutputStream(bos);
40			out.writeObject(Collections.EMPTY_SET);
41			out.flush();
42			ObjectInputStream in = new ObjectInputStream(
43			new ByteArrayInputStream(bos.toByteArray()));
44
45			if (!Collections.EMPTY_SET.equals(in.readObject()))
46			throw new RuntimeException("empty set Ser/Deser failure.");
47			} catch (Exception e) {
48			throw new RuntimeException("Failed to serialize empty set:" + e);
49			}
50
51			try {
52			ByteArrayOutputStream bos = new ByteArrayOutputStream();
53			ObjectOutputStream out = new ObjectOutputStream(bos);
54			out.writeObject(Collections.EMPTY_LIST);
55			out.flush();
56			ObjectInputStream in = new ObjectInputStream(
57			new ByteArrayInputStream(bos.toByteArray()));
58
59			if (!Collections.EMPTY_LIST.equals(in.readObject()))
60			throw new RuntimeException("empty list Ser/Deser failure.");
61			} catch (Exception e) {
62			throw new RuntimeException("Failed to serialize empty list:" + e);
63			}
64
65			try {
66			ByteArrayOutputStream bos = new ByteArrayOutputStream();
67			ObjectOutputStream out = new ObjectOutputStream(bos);
68			Set gumby = Collections.singleton("gumby");
69			out.writeObject(gumby);
70			out.flush();
71			ObjectInputStream in = new ObjectInputStream(
72			new ByteArrayInputStream(bos.toByteArray()));
73
74			if (!gumby.equals(in.readObject()))
75			throw new RuntimeException("Singleton Ser/Deser failure.");
76			} catch (Exception e) {
77			throw new RuntimeException("Failed to serialize singleton:" + e);
78			}
79
80			try {
81			ByteArrayOutputStream bos = new ByteArrayOutputStream();
82			ObjectOutputStream out = new ObjectOutputStream(bos);
83			List gumbies = Collections.nCopies(50, "gumby");
84			out.writeObject(gumbies);
85			out.flush();
86			ObjectInputStream in = new ObjectInputStream(
87			new ByteArrayInputStream(bos.toByteArray()));
88
89			if (!gumbies.equals(in.readObject()))
90			throw new RuntimeException("nCopies Ser/Deser failure.");
91			} catch (Exception e) {
92			throw new RuntimeException("Failed to serialize nCopies:" + e);
93			}
94			}
95			}