1 /*

     2  * Copyright 2003 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /* @test

    25  * @bug 4783178

    26  * @summary Ensure that closing a selector invalidates its keys

    27  */

    28 

    29 import java.nio.channels.*;

    30 

    31 

    32 public class CloseInvalidatesKeys {

    33 

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

    35         DatagramChannel ch = DatagramChannel.open();

    36         ch.configureBlocking(false);

    37         Selector sel = Selector.open();

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

    39         sel.close();

    40         if (key.isValid())

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

    42     }

    43 

    44 }