How to understand and learn `instrument` package of java?

Question

Recently, I found there is a java.lang.instrument package in jdk, which is used by many frameworks to reload classes or profile.

I don't find many articles of using them, is there any resource(book, article, project) to help to understand it?

Answer 1

I think this link can help to understand a little the usage of java agents:

• Not So Secret Java Agent (1)
• Not So Secret Java Agent (2)
• Not So Secret Java Agent (3)
• Not So Secret Java Agent (4)

hope this will help

Answer 2

This library is for Java Instrumentation mechanism (Registering a class as MBean server) using JMX. Refer JMX guide