| /* |
| * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8006395 8012244 |
| * @summary Tests racing code that reads and closes a Socket |
| */ |
| |
| import java.io.InputStream; |
| import java.net.ServerSocket; |
| import java.net.Socket; |
| import java.net.SocketException; |
| import java.util.concurrent.Phaser; |
| |
| // Racey test, will not always fail, but if it does then we have a problem. |
| |
| public class Race { |
| final static int THREADS = 100; |
| |
| public static void main(String[] args) throws Exception { |
| try (ServerSocket ss = new ServerSocket(0)) { |
| final int port = ss.getLocalPort(); |
| final Phaser phaser = new Phaser(THREADS + 1); |
| for (int i=0; i<100; i++) { |
| final Socket s = new Socket("localhost", port); |
| s.setSoLinger(false, 0); |
| try (Socket sa = ss.accept()) { |
| sa.setSoLinger(false, 0); |
| final InputStream is = s.getInputStream(); |
| Thread[] threads = new Thread[THREADS]; |
| for (int j=0; j<THREADS; j++) { |
| threads[j] = new Thread() { |
| public void run() { |
| try { |
| phaser.arriveAndAwaitAdvance(); |
| while (is.read() != -1) |
| Thread.sleep(50); |
| } catch (Exception x) { |
| if (!(x instanceof SocketException |
| && x.getMessage().equalsIgnoreCase("socket closed"))) |
| x.printStackTrace(); |
| // ok, expect Socket closed |
| } |
| }}; |
| } |
| for (int j=0; j<100; j++) |
| threads[j].start(); |
| phaser.arriveAndAwaitAdvance(); |
| s.close(); |
| for (int j=0; j<100; j++) |
| threads[j].join(); |
| } |
| } |
| } |
| } |
| } |