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After kick-starting the Advanced Java course by discussing how to How to create and destroy objects, how to use methods common to all objects, how to design Classes and Interfaces, how and when to use generics, how to use enums and annotations, how to write methods efficiently, various programming guidelines, how and when to use Exceptions, some concurrency best practices, the Built-in Serialization techniques, How to use Reflection effectively, how to leverage scripting and dynamic languages support in Java, how to use the Java Compiler API and how to use the magic of annotation processing we are now going a step further.

In this final lesson we are going to talk about Java agents, a real black magic for regular Java developers out there. Java agents are able to “intrude” into the execution of Java applications running on the JVM at runtime by performing the direct modifications of the bytecode. Java agents are extremely as powerful as dangerous: they can do mostly everything however if something goes wrong, they can easily crash the JVM.