Qunar Tech Salon

Oct 29, 2019 · Backend Development

Java Bytecode Enhancement Techniques: ASM, Javassist, Instrumentation, and Runtime Class Reloading

This article explains Java bytecode fundamentals, its file structure, and demonstrates how to manipulate and enhance bytecode at runtime using ASM, Javassist, the Instrumentation API, JVMTI agents, and the Attach API, providing practical code examples and use‑case scenarios.