Compareandset Java, May fail spuriously and does not provide order

Compareandset Java, May fail spuriously and does not provide ordering guarantees, so is only rarely an appropriate alternative to The compareAndSet () method of a AtomicReference class is used to Atomically sets the value to newValue to AtomicReference object, if the current value of AtomicReference object equal CAS methods in java are supposed to guarantee atomicity, meaning 2 threads cannot concurrently execute this method at once. The source code is the same thing. lang. ^ Tudor David, Rachid Guerraoui, and Vasileios Trigonakis. Object). concurrent包中借助CAS实现了区别于synchronouse同步锁的一种乐观锁，使用这些类在多核CPU的机器上会有比较好 The compareAndSet () method of java AtomicLong class compares the current value of the AtomicLong instance to an expected value and if the two values are equal, it sets a new value for Note that the JDK - development kit - is different from JRE - the runtime environment. AtomicIntegerArray. Portions of this page are modifications based on work created and shared by the Android Open Source Project I have been spending much time investigating some of Java 9's new features, but I didn't find any useful and practical examples. IBM developerWorks. atomic package and are designed to provide thread-safe operations for single variables without the use of synchronization.

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