1/*
2 * Copyright (c) 2004, 2010, 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 4953599
26 * @run main/timeout=15 CheckLocking
27 * @summary check if setInterest blocks while in select
28 */
29
30import java.nio.*;
31import java.nio.channels.*;
32import java.nio.channels.spi.*;
33import java.net.*;
34
35public class CheckLocking implements Runnable {
36
37    private static Selector selector;
38
39    public CheckLocking() {
40    }
41
42    public void run() {
43        try {
44            selector.select();
45        } catch (Throwable th) {
46            th.printStackTrace();
47        }
48    }
49
50    private static void doSelect() throws Exception {
51        Thread thread = new Thread(new CheckLocking());
52        thread.start();
53        Thread.sleep(1000);
54    }
55
56    public static void main (String[] args) throws Exception {
57        selector = SelectorProvider.provider().openSelector();
58        SocketChannel sc = SocketChannel.open();
59        sc.configureBlocking(false);
60        SelectionKey sk = sc.register(selector,0,null);
61        doSelect();
62        sk.interestOps(SelectionKey.OP_READ);
63        selector.wakeup();
64        sc.close();
65        selector.close();
66    }
67}
68