Jan 24, 2021 · Backend Development

Understanding and Using AtomicReference for Thread‑Safe Updates in Java

This article explains the limitations of volatile for compound updates, demonstrates non‑thread‑safe bank‑account examples, introduces synchronized locking, and then shows how AtomicReference with CAS operations provides a lock‑free, thread‑safe solution, including a deep dive into its internal implementation and related memory‑barrier concepts.

AtomicReferenceCASJava

0 likes · 14 min read

Understanding and Using AtomicReference for Thread‑Safe Updates in Java

Wukong Talks Architecture

Aug 25, 2020 · Backend Development

Understanding the ABA Problem in CAS and Solving It with AtomicStampedReference

This article explains the ABA issue that can occur in Java's compare‑and‑swap (CAS) operations, illustrates it with a building‑block analogy and concrete code examples, and shows how versioned atomic references such as AtomicStampedReference can reliably prevent the problem.

ABA problemAtomicReferenceCAS

0 likes · 11 min read

Understanding the ABA Problem in CAS and Solving It with AtomicStampedReference