/*

 * 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.

 *

 */

/* @test

 * @clean A

 * @bug 4146453

 * @summary Test that regrow of object/handle table of ObjectOutputStream works.

 */

import java.io.*;

import java.util.HashSet;

import java.util.Iterator;

class A implements Serializable {

    static HashSet writeObjectExtent = new HashSet();

    private void writeObject(ObjectOutputStream out) throws IOException {

        if (writeObjectExtent.contains(this)) {

            throw new InvalidObjectException("writeObject: object " +

                                             this.toString() + " has already "

                                             + "been serialized and should " +

                                             "have be serialized by reference.");

        } else {

            writeObjectExtent.add(this);

        }

        out.defaultWriteObject();

    }

    A() {

    }

}

public class VerifyDynamicObjHandleTable {

    public static void main(String args[])

        throws IOException, ClassNotFoundException

    {

        ObjectOutputStream out =

            new ObjectOutputStream(new ByteArrayOutputStream(3000));

        for (int i = 0; i < 1000; i++) {

            out.writeObject(new A());

        }

        // Make sure that serialization subsystem does not

        // allow writeObject to be called on any objects that

        // have already been serialized. These objects should be

        // written out by reference.

        Iterator iter = A.writeObjectExtent.iterator();

        while (iter.hasNext()) {

            out.writeObject(iter.next());

        }

        out.close();

    }

}