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