April 2017
Beginner
504 pages
14h 11m
English
Content preview from Java 9 Programming By Example
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Java agent
A Java agent is a Java program that is loaded by the Java runtime in a special way and can be used to interfere with the byte code of the loaded classes, altering them. They can be used to:
- List or log, and report the loaded classes during runtime, as they are loaded
- Modify the classes so that the methods will contain extra code to report runtime behavior
- Support debuggers to alter the content of a class as the developer modifies the source code
This technology is used in, for example, the products JRebel and XRebel from https://zeroturnaround.com/.
Although Java agents work in the deep details of Java, they are not magic. They are a bit complex and you need a deep understanding of Java, but anyone who can program in Java can ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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