test/jdk/java/io/Serializable/enum/classObject/Test.java
author rriggs
Fri, 11 Oct 2019 13:11:56 -0400
changeset 58565 baa5969ecf34
parent 47216 71c04702a3d5
permissions -rw-r--r--
8231427: Warning cleanup in tests of java.io.Serializable Reviewed-by: darcy, lancea
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/*
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 * Copyright (c) 2003, 2019, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/* @test
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 * @bug 4838379
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 * @summary Verify that serialization of Class objects for enum types works
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 *          properly.
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 */
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import java.io.*;
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enum Foo { foo, bar { int i = 0; }, baz { double d = 3.0; } }
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public class Test {
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    public static void main(String[] args) throws Exception {
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        ByteArrayOutputStream bout = new ByteArrayOutputStream();
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        ObjectOutputStream oout = new ObjectOutputStream(bout);
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        Class<?>[] classes = { Enum.class, Foo.foo.getClass(),
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                            Foo.bar.getClass(), Foo.baz.getClass() };
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        for (int i = 0; i < classes.length; i++) {
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            oout.writeObject(classes[i]);
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        }
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        oout.close();
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        ObjectInputStream oin = new ObjectInputStream(
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            new ByteArrayInputStream(bout.toByteArray()));
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        for (int i = 0; i < classes.length; i++) {
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            Object obj = oin.readObject();
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            if (obj != classes[i]) {
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                throw new Error("expected " + classes[i] + ", got " + obj);
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            }
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        }
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    }
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}