Code Ape Tech Column
Oct 14, 2024 · Backend Development
Understanding Java Agent: Premain and Agentmain Modes with Instrumentation
This article explains the concept of Java Agent, compares it with AOP, and provides step‑by‑step implementations of both premain and agentmain modes, including Maven packaging, VM attachment, class transformation, redefinition, retransformation, and a Javassist example for method timing.
AgentmainBackend DevelopmentBytecode Manipulation
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