1 /*

     2  * Copyright (c) 2003, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /* @test

    25  * @bug 4854056

    26  * @summary Check release on closed channel

    27  */

    28 

    29 import java.io.*;

    30 import java.nio.channels.*;

    31 

    32 public class Release {

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

    34         FileOutputStream fos = new FileOutputStream("testFile.tmp");

    35         fos.write(new byte[128]);

    36         FileChannel ch = fos.getChannel();

    37         FileLock fl = ch.lock();

    38         ch.close();

    39         try {

    40             fl.release();

    41             throw new RuntimeException("Expected exception not thrown");

    42         } catch (ClosedChannelException cce) {

    43             // Correct result

    44         }

    45     }

    46 }