1 /*

     2  * Copyright 2001 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  * @summary Test trivial stuff

    26  */

    27 

    28 import java.nio.channels.*;

    29 

    30 

    31 public class Trivial {

    32 

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

    34         SocketChannel sc = SocketChannel.open();

    35         Selector sel = Selector.open();

    36         if (sc.keyFor(sel) != null)

    37             throw new Exception("keyFor != null");

    38         sc.configureBlocking(false);

    39         SelectionKey sk = sc.register(sel, SelectionKey.OP_READ, args);

    40         if (sc.keyFor(sel) != sk)

    41             throw new Exception("keyFor returned " + sc.keyFor(sel));

    42         if (sk.attachment() != args)

    43             throw new Exception("attachment() returned " + sk.attachment());

    44         Trivial t = new Trivial();

    45         sk.attach(t);

    46         if (sk.attachment() != t)

    47             throw new Exception("Wrong attachment");

    48         sk.isReadable();

    49         sk.isWritable();

    50         sk.isConnectable();

    51         sk.isAcceptable();

    52     }

    53 

    54 }