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
29import java.io.*;
30import java.nio.channels.*;
31
32public 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}
47