/*

 * 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 4360508

 * @summary Verify that a custom readObject() method reading in data written

 *          via default serialization cannot read past the end of the default

 *          data.

 */

import java.io.*;

class A implements Serializable {

    int i1 = 1, i2 = 2;

    String s1 = "foo", s2 = "bar";

    private void readObject(ObjectInputStream in)

        throws IOException, ClassNotFoundException

    {

        in.defaultReadObject();

        if (in.read() != -1) {

            throw new Error();

        }

        try {

            in.readInt();

            throw new Error();

        } catch (EOFException ex) {

        }

        try {

            in.readObject();

            throw new Error();

        } catch (OptionalDataException ex) {

            if (!ex.eof) {

                throw new Error();

            }

        }

        try {

            in.readUnshared();

            throw new Error();

        } catch (OptionalDataException ex) {

            if (!ex.eof) {

                throw new Error();

            }

        }

    }

}

class B implements Serializable {

    int i1 = 1, i2 = 2;

    String s1 = "foo", s2 = "bar";

    private void readObject(ObjectInputStream in)

        throws IOException, ClassNotFoundException

    {

        in.readFields();

        try {

            in.readObject();

            throw new Error();

        } catch (OptionalDataException ex) {

            if (!ex.eof) {

                throw new Error();

            }

        }

        try {

            in.readUnshared();

            throw new Error();

        } catch (OptionalDataException ex) {

            if (!ex.eof) {

                throw new Error();

            }

        }

        if (in.read() != -1) {

            throw new Error();

        }

        try {

            in.readInt();

            throw new Error();

        } catch (EOFException ex) {

        }

    }

}

class C implements Serializable {

    private void readObject(ObjectInputStream in)

        throws IOException, ClassNotFoundException

    {

        in.defaultReadObject();

        try {

            in.readObject();

            throw new Error();

        } catch (OptionalDataException ex) {

            if (!ex.eof) {

                throw new Error();

            }

        }

        try {

            in.readUnshared();

            throw new Error();

        } catch (OptionalDataException ex) {

            if (!ex.eof) {

                throw new Error();

            }

        }

        if (in.read() != -1) {

            throw new Error();

        }

        try {

            in.readInt();

            throw new Error();

        } catch (EOFException ex) {

        }

    }

}

public class DefaultDataEnd {

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

        ByteArrayOutputStream bout = new ByteArrayOutputStream();

        ObjectOutputStream oout = new ObjectOutputStream(bout);

        oout.writeObject(new A());

        oout.writeObject(new B());

        oout.writeObject(new C());

        oout.close();

        ObjectInputStream oin = new ObjectInputStream(

            new ByteArrayInputStream(bout.toByteArray()));

        oin.readObject();

        oin.readObject();

        oin.readObject();

    }

}