| /* |
| * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6275329 |
| * @summary lazySet methods |
| */ |
| |
| import java.util.concurrent.atomic.*; |
| import java.util.*; |
| |
| public class Lazy { |
| volatile int ii; |
| volatile long ll; |
| volatile Boolean bb; |
| static final Lazy z = new Lazy(); |
| |
| public static void main(String[] args) throws Exception { |
| final AtomicBoolean b = new AtomicBoolean(); |
| final AtomicInteger i = new AtomicInteger(); |
| final AtomicLong l = new AtomicLong(); |
| final AtomicReference<Long> r = new AtomicReference<Long>(); |
| |
| final AtomicIntegerArray ia = new AtomicIntegerArray(1); |
| final AtomicLongArray la = new AtomicLongArray(1); |
| final AtomicReferenceArray<Long> ra = new AtomicReferenceArray<Long>(1); |
| |
| final AtomicIntegerFieldUpdater<Lazy> iu = |
| AtomicIntegerFieldUpdater.newUpdater(Lazy.class, "ii"); |
| final AtomicLongFieldUpdater<Lazy> lu = |
| AtomicLongFieldUpdater.newUpdater(Lazy.class, "ll"); |
| final AtomicReferenceFieldUpdater<Lazy,Boolean> ru = |
| AtomicReferenceFieldUpdater.newUpdater(Lazy.class, |
| Boolean.class, "bb"); |
| |
| Thread[] threads = { |
| new Thread() { public void run() { b.lazySet(true); }}, |
| new Thread() { public void run() { i.lazySet(2); }}, |
| new Thread() { public void run() { l.lazySet(3L); }}, |
| new Thread() { public void run() { r.lazySet(9L); }}, |
| new Thread() { public void run() { ia.lazySet(0,4); }}, |
| new Thread() { public void run() { la.lazySet(0,5L); }}, |
| new Thread() { public void run() { ra.lazySet(0,6L); }}, |
| new Thread() { public void run() { iu.lazySet(z,7); }}, |
| new Thread() { public void run() { lu.lazySet(z,8L); }}, |
| new Thread() { public void run() { ru.lazySet(z,true); }}}; |
| |
| for (Thread t : threads) t.start(); |
| for (Thread t : threads) t.join(); |
| |
| if (! (b.get() == true && |
| i.get() == 2 && |
| l.get() == 3L && |
| r.get() == 9L && |
| ia.get(0) == 4 && |
| la.get(0) == 5L && |
| ra.get(0) == 6L && |
| z.ii == 7 && |
| z.ll == 8L && |
| z.bb == true)) |
| throw new Exception("lazySet failed"); |
| } |
| } |