79 lines
2.4 KiB
Java
79 lines
2.4 KiB
Java
/*
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* Copyright (c) 2011 SAP SE. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test TestConjointAtomicArraycopy
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* @bug 7100935
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* @summary verify that oops are copied element-wise atomic
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* @run main/othervm -Xint TestConjointAtomicArraycopy
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* @run main/othervm -Xcomp -Xbatch TestConjointAtomicArraycopy
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* @author axel.siebenborn@sap.com
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*/
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public class TestConjointAtomicArraycopy {
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static volatile Object [] testArray = new Object [4];
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static short[] a1 = new short[8];
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static short[] a2 = new short[8];
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static short[] a3 = new short[8];
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static volatile boolean keepRunning = true;
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static void testOopsCopy() throws InterruptedException{
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}
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public static void main(String[] args ) throws InterruptedException{
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for (int i = 0; i < testArray.length; i++){
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testArray[i] = new String("A");
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}
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Thread writer = new Thread (new Runnable(){
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public void run(){
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for (int i = 0 ; i < 1000000; i++) {
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System.arraycopy(testArray, 1, testArray, 0, 3);
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testArray[2] = new String("a");
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}
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}
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});
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Thread reader = new Thread( new Runnable(){
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public void run(){
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while (keepRunning){
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String name = testArray[2].getClass().getName();
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if(!(name.endsWith("String"))){
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throw new RuntimeException("got wrong class name");
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}
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}
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}
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});
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keepRunning = true;
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reader.start();
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writer.start();
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writer.join();
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keepRunning = false;
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reader.join();
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}
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}
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