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