/*

 * 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.

 */

/*

 * @bug 4337857

 * @summary Verify that custom serialization methods declared with incorrect

 *          return types are not invoked.

 */

import java.io.*;

class A implements Serializable {

    private static final long serialVersionUID = 0L;

    static boolean readObjectNoDataCalled;

    private Object readObjectNoData() throws ObjectStreamException {

        readObjectNoDataCalled = true;

        return null;

    }

}

class B extends A {

    private static final long serialVersionUID = 0L;

    static boolean readObjectCalled;

    static boolean readResolveCalled;

    private Integer readObject(ObjectInputStream in)

        throws IOException, ClassNotFoundException

    {

        readObjectCalled = true;

        in.defaultReadObject();

        return null;

    }

    private B readResolve() throws ObjectStreamException {

        readResolveCalled = true;

        return this;

    }

}

public class Read {

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

        FileInputStream in = new FileInputStream("tmp.ser");

        try {

            ObjectInputStream oin = new ObjectInputStream(in);

            B b = (B) oin.readObject();

            if (A.readObjectNoDataCalled) {

                throw new Error("readObjectNoData with wrong return type called");

            } else if (B.readObjectCalled) {

                throw new Error("readObject with wrong return type called");

            } else if (B.readResolveCalled) {

                throw new Error("readResolve with wrong return type called");

            }

        } finally {

            in.close();

        }

    }

}