1 /*
   2  * Copyright (c) 2017, 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 /**
  25  * JDK-8185119: Uninitialized const when using multiple threads
  26  *
  27  * @test
  28  * @option --language=es6
  29  * @run
  30  */
  31 
  32 function f() {
  33     let a;
  34     const b = {};
  35     b.crash; // b is sometimes undefined
  36 
  37     function c() {
  38         a; b;
  39     }
  40 }
  41 
  42 let count = new java.util.concurrent.atomic.AtomicInteger();
  43 
  44 let T = Java.extend(Java.type('java.lang.Thread'), {
  45     run: function() {
  46         for (let j = 0; j < 100; j++) {
  47             f();
  48         }
  49         count.getAndIncrement();
  50     }
  51 });
  52 
  53 const threads = [new T(), new T(), new T(), new T()];
  54 threads.forEach(t => t.start());
  55 threads.forEach(t => t.join());
  56 
  57 Assert.assertEquals(count.intValue(), 4);
  58