1 /*
   2  * Copyright (c) 2007, 2012, 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 package org.graalvm.compiler.jtt.threads;
  24 
  25 import org.junit.Test;
  26 
  27 import org.graalvm.compiler.jtt.JTTTest;
  28 
  29 /*
  30  */
  31 
  32 // Interrupted while running, do nothing, just set the flag and continue
  33 // (thomaswue) This test will exercise deoptimization on HotSpot, because a volatile unloaded field is accessed.
  34 // (thomaswue) The temporary result variable is needed, because in order to query the isInterrupted flag, the thread must be alive.
  35 public class Thread_isInterrupted04 extends JTTTest {
  36 
  37     public static boolean test() throws InterruptedException {
  38         final Thread1 thread = new Thread1();
  39         thread.start();
  40         while (!thread.running) {
  41             Thread.sleep(10);
  42         }
  43         Thread.sleep(100);
  44         thread.interrupt();
  45         boolean result = thread.isInterrupted();
  46         thread.setStop(true);
  47         return result;
  48     }
  49 
  50     public static class Thread1 extends java.lang.Thread {
  51 
  52         private volatile boolean stop = false;
  53         public volatile boolean running = false;
  54         public long i = 0;
  55 
  56         @Override
  57         public void run() {
  58             running = true;
  59             while (!stop) {
  60                 i++;
  61             }
  62         }
  63 
  64         public void setStop(boolean value) {
  65             stop = value;
  66         }
  67 
  68     }
  69 
  70     @Test
  71     public void run0() throws Throwable {
  72         runTest("test");
  73     }
  74 
  75 }