test/jdk/java/io/Serializable/resolveClass/MethodTest.java

/*
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 * 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.
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 */

/* @test
 * @bug 4413434
 * @summary Verify that generated java.lang.reflect implementation classes do
 *          not interfere with serialization's class resolution mechanism.
 */

import java.io.*;
import java.lang.reflect.*;

public class MethodTest implements Serializable {
    private static final long serialVersionUID = 1L;

    public static void main(String[] args) throws Exception {
        Method readObject = ObjectInputStream.class.getDeclaredMethod(
            "readObject", new Class<?>[0]);
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        ObjectOutputStream oout = new ObjectOutputStream(bout);
        oout.writeObject(new MethodTest());
        oout.close();

        for (int i = 0; i < 100; i++) {
            ObjectInputStream oin = new ObjectInputStream(
                new ByteArrayInputStream(bout.toByteArray()));
            readObject.invoke(oin, new Object[0]);
        }
    }
}