Mercurial > jdk8-mips64-public > hotspot / annotate
test/runtime/7100935/TestConjointAtomicArraycopy.java@34aa07e92d22 (annotated)
test/runtime/7100935/TestConjointAtomicArraycopy.java
Thu, 19 Sep 2013 09:36:51 -0700
- author
- cl
- date
- Thu, 19 Sep 2013 09:36:51 -0700
- changeset 5664
- 34aa07e92d22
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
Added tag jdk8-b108 for changeset 85072013aad4
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright 2011 SAP AG. All Rights Reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | */ |
| aoqi@0 | 23 | |
| aoqi@0 | 24 | /* |
| aoqi@0 | 25 | * @test TestConjointAtomicArraycopy |
| aoqi@0 | 26 | * @bug 7100935 |
| aoqi@0 | 27 | * @summary verify that oops are copied element-wise atomic |
| aoqi@0 | 28 | * @run main/othervm -Xint TestConjointAtomicArraycopy |
| aoqi@0 | 29 | * @run main/othervm -Xcomp -Xbatch TestConjointAtomicArraycopy |
| aoqi@0 | 30 | * @author axel.siebenborn@sap.com |
| aoqi@0 | 31 | */ |
| aoqi@0 | 32 | |
| aoqi@0 | 33 | public class TestConjointAtomicArraycopy { |
| aoqi@0 | 34 | |
| aoqi@0 | 35 | static volatile Object [] testArray = new Object [4]; |
| aoqi@0 | 36 | |
| aoqi@0 | 37 | static short[] a1 = new short[8]; |
| aoqi@0 | 38 | static short[] a2 = new short[8]; |
| aoqi@0 | 39 | static short[] a3 = new short[8]; |
| aoqi@0 | 40 | |
| aoqi@0 | 41 | static volatile boolean keepRunning = true; |
| aoqi@0 | 42 | |
| aoqi@0 | 43 | static void testOopsCopy() throws InterruptedException{ |
| aoqi@0 | 44 | |
| aoqi@0 | 45 | } |
| aoqi@0 | 46 | |
| aoqi@0 | 47 | public static void main(String[] args ) throws InterruptedException{ |
| aoqi@0 | 48 | for (int i = 0; i < testArray.length; i++){ |
| aoqi@0 | 49 | testArray[i] = new String("A"); |
| aoqi@0 | 50 | } |
| aoqi@0 | 51 | |
| aoqi@0 | 52 | Thread writer = new Thread (new Runnable(){ |
| aoqi@0 | 53 | public void run(){ |
| aoqi@0 | 54 | for (int i = 0 ; i < 1000000; i++) { |
| aoqi@0 | 55 | System.arraycopy(testArray, 1, testArray, 0, 3); |
| aoqi@0 | 56 | testArray[2] = new String("a"); |
| aoqi@0 | 57 | } |
| aoqi@0 | 58 | } |
| aoqi@0 | 59 | }); |
| aoqi@0 | 60 | |
| aoqi@0 | 61 | Thread reader = new Thread( new Runnable(){ |
| aoqi@0 | 62 | public void run(){ |
| aoqi@0 | 63 | while (keepRunning){ |
| aoqi@0 | 64 | String name = testArray[2].getClass().getName(); |
| aoqi@0 | 65 | if(!(name.endsWith("String"))){ |
| aoqi@0 | 66 | throw new RuntimeException("got wrong class name"); |
| aoqi@0 | 67 | } |
| aoqi@0 | 68 | } |
| aoqi@0 | 69 | } |
| aoqi@0 | 70 | }); |
| aoqi@0 | 71 | keepRunning = true; |
| aoqi@0 | 72 | reader.start(); |
| aoqi@0 | 73 | writer.start(); |
| aoqi@0 | 74 | writer.join(); |
| aoqi@0 | 75 | keepRunning = false; |
| aoqi@0 | 76 | reader.join(); |
| aoqi@0 | 77 | } |
| aoqi@0 | 78 | } |
