The source code is the same thing. public final boolean compareAndSet(V expect, V update) { return unsafe.compareAndSwapObject(this, valueOffset, expect, update); } public final boolean weakComp...

When do we use AtomicReference? Is it needed to create objects in all multithreaded programs? Provide a simple example where AtomicReference should be used.

A lot of our code is legacy but we are moving to a "Big Data" back-end and I'm trying to evangelize the newer API calls, encourage the use of the latest Spring libraries etc. One of our problems is...

I have to synchronize access between threads to a shared object, whose state consists of several fields. Say: class Shared{ String a; Integer b; //constructor, getters and setters .... } I have ...

I don´t get the difference between these two: AtomicReference<Integer> atomicReference = new AtomicReference<>(1); vs. AtomicInteger atomicInteger = new AtomicInteger(1); Can some...

Say I have an AtomicReferenceto a list of objects: AtomicReference<List<?>> batch = new AtomicReference<List<Object>>(new ArrayList<Object>()); Thread A adds elemen...

From the Java AtomicReferenceFieldUpdater docs: Note that the guarantees of the compareAndSet method in this class are weaker than in other atomic classes. Because this class cannot ensure tha...

Is there any way to implement a type of reference whose value can be exchanged with another atomically? In Java we have AtomicReference which can be swapped with a local variable but not with an...

In Java there exists an AtomicReference class. Does this mean that setting a reference is NOT an atomic operation in and of itself? e.g., is this not thread-safe (assuming that the value returned ...