/*

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 *

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 * published by the Free Software Foundation.

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 * 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 6541870

 * @summary this test checks that ObjectInputStream throws an IOException

 *          instead of a NullPointerException when deserializing an ArrayList

 *          of Externalizables if there is an IOException while deserializing

 *          one of these Externalizables.

 *

 * @author Andrey Ozerov

 */

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.io.ObjectInput;

import java.io.ObjectInputStream;

import java.io.ObjectOutput;

import java.io.ObjectOutputStream;

import java.util.ArrayList;

public class NPEProvoker implements java.io.Externalizable {

    private String test = "test";

    public void readExternal(ObjectInput in) throws IOException,

        ClassNotFoundException

    {

        throw new IOException(); //io exception for whatever reason

    }

    public void writeExternal(ObjectOutput out) throws IOException {

        out.writeObject(test);

    }

    public static void main(String[] args) {

        System.err.println("\n Regression test for bug 6541870\n");

        try {

            ArrayList<NPEProvoker> list = new ArrayList<>();

            list.add(new NPEProvoker());

            ByteArrayOutputStream baos = new ByteArrayOutputStream();

            ObjectOutputStream oos = new ObjectOutputStream(baos);

            oos.writeObject(list);

            ObjectInputStream ois =

                new ObjectInputStream(new ByteArrayInputStream(

                baos.toByteArray()));

            ois.readObject();

            throw new Error();

        } catch (IOException e) {

            System.err.println("\nTEST PASSED");

        } catch (ClassNotFoundException e) {

            throw new Error();

        } catch (NullPointerException e) {

            throw new Error();

        }

    }

}