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
Method replacement
In-place method appending
- Accepting return value as argument
- Overwriting return value
In-place method prepending
Automatic injection of INVOKEDYNAMIC lambda targets

TODO

Better tests
Execution path optimization (e.g. remove unnecessary GOTOs)
Implement exceptions
Implement try-catch
- Implement subroutines (JSR / RET)