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 problemAtomicReferenceAtomicStampedReference
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