low-level memory

Spring Full-Stack Practical Cases

Mar 31, 2021 · Fundamentals

Unlocking Java’s Unsafe: Access Low‑Level Memory and Concurrency Safely

This article explains the purpose and risks of Java's sun.misc.Unsafe class, categorizes its APIs, demonstrates how to obtain an Unsafe instance, and provides practical code examples for memory manipulation, CAS operations, thread control, object allocation, and building simple atomic utilities.