|  | // Copyright (c) 2017, the R8 project authors. Please see the AUTHORS file | 
|  | // for details. All rights reserved. Use of this source code is governed by a | 
|  | // BSD-style license that can be found in the LICENSE file. | 
|  | package atomicfieldupdater; | 
|  |  | 
|  | import java.util.concurrent.atomic.AtomicIntegerFieldUpdater; | 
|  | import java.util.concurrent.atomic.AtomicLongFieldUpdater; | 
|  | import java.util.concurrent.atomic.AtomicReferenceFieldUpdater; | 
|  |  | 
|  | public class Main { | 
|  | public static void main(String[] args) throws Exception { | 
|  | A a = new A(); | 
|  | AtomicIntegerFieldUpdater<A> iUpdater = AtomicIntegerFieldUpdater.newUpdater(A.class, "i"); | 
|  | iUpdater.set(a, 8); | 
|  |  | 
|  | AtomicLongFieldUpdater<A> lUpdater = AtomicLongFieldUpdater.newUpdater(A.class, "l"); | 
|  | lUpdater.set(a, 8L); | 
|  |  | 
|  | AtomicReferenceFieldUpdater<A, Object> oUpdater = | 
|  | AtomicReferenceFieldUpdater.newUpdater(A.class, Object.class, "o"); | 
|  | oUpdater.set(a, null); | 
|  | } | 
|  | } |