/*

 * 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 4094892

@summary Verify that an object is not validated more than once during deserialization.

*/

import java.io.*;

import java.util.Date;

public class Validate {

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

        try {

            // Write class out

            ByteArrayOutputStream baos = new ByteArrayOutputStream();

            ObjectOutput out = new ObjectOutputStream(baos);

            Class1 c1 = new Class1(11, 22);

            out.writeObject(c1);

            out.writeObject(new Class1(22,33));

            out.writeObject(new Date());

            out.writeObject(new Date());

            out.writeObject(new Date());

            out.writeObject(new Date());

            out.flush();

            out.close();

            // Read it back

            ByteArrayInputStream bais =

                new ByteArrayInputStream(baos.toByteArray());

            ObjectInputStream in = new ObjectInputStream(bais);

            Class1 cc1 = (Class1) in.readObject();

            Class1 cc2 = (Class1) in.readObject();

            System.out.println("date: " + in.readObject());

            System.out.println("date: " + in.readObject());

            System.out.println("date: " + in.readObject());

            System.out.println("date: " + in.readObject());

            in.close();

            System.out.println(cc1.a + " " + cc1.b);

            System.out.println(cc2.a + " " + cc2.b);

        } catch (IOException e) {

            e.printStackTrace();

            throw e;

        } catch (ClassNotFoundException e) {

            e.printStackTrace();

            throw e;

        }

    }

}

class Class1 implements Serializable, ObjectInputValidation {

    int a, b;

    transient int validates;

    public Class1(int aa, int bb) {

        a = aa;

        b = bb;

    }

    public void validateObject() throws InvalidObjectException {

        if (validates > 0)

            throw new Error("Implementation error: Re-validating object " + this.toString());

        validates++;

        System.out.println("Validating " + this.toString());

        if (a > b) {

            throw new InvalidObjectException("Fields cannot be negative");

        }

    }

    private void readObject(ObjectInputStream in)

        throws IOException, ClassNotFoundException {

            in.registerValidation(this, 1);

            in.defaultReadObject();

    }

}