1 /*
   2  * Copyright (c) 2009, 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 public class ThreadLocal03 extends JTTTest {
  32 
  33     static final ThreadLocal<Integer> local = new ThreadLocal<>();
  34 
  35     public static int test(int i) {
  36         int sum = 0;
  37         for (int j = 0; j < i; j++) {
  38             TThread t = new TThread();
  39             t.input = 10 + j;
  40             t.run();
  41             try {
  42                 t.join();
  43             } catch (InterruptedException e) {
  44                 return -1;
  45             }
  46             sum += t.output;
  47         }
  48         return sum;
  49     }
  50 
  51     private static class TThread extends Thread {
  52 
  53         int input;
  54         int output;
  55 
  56         @Override
  57         public void run() {
  58             local.set(input + 5);
  59             output = local.get();
  60         }
  61     }
  62 
  63     @Test
  64     public void run0() throws Throwable {
  65         runTest("test", 0);
  66     }
  67 
  68     @Test
  69     public void run1() throws Throwable {
  70         runTest("test", 1);
  71     }
  72 
  73     @Test
  74     public void run2() throws Throwable {
  75         runTest("test", 2);
  76     }
  77 
  78     @Test
  79     public void run3() throws Throwable {
  80         runTest("test", 3);
  81     }
  82 
  83 }