/*

 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.

 * 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 4783178

 * @summary Ensure that closing a selector invalidates its keys

 */

import java.nio.channels.*;

public class CloseInvalidatesKeys {

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

        DatagramChannel ch = DatagramChannel.open();

        try {

            ch.configureBlocking(false);

            Selector sel = Selector.open();

            SelectionKey key = ch.register(sel, SelectionKey.OP_WRITE);

            sel.close();

            if (key.isValid())

                throw new Exception("Key valid after selector closed");

        } finally {

            ch.close();

        }

    }

}