Beethoven: A library for making Java bytecode instrumentation easier

The point of this library is to offer a simple, annotation-driven way to instrument classes. What this means is that a user of this library should never have to see so much as a byte. Everything should be abstracted to the level of classes, methods and fields.

Version 2

Implemented

• Per-instruction method frame state analysis tools

• Method insertion (basic)

• Method replacement (basic)

• In-place method appending

• Automatic injection of INVOKEDYNAMIC lambda targets

TODO

• In-place method prepending