A little while back I wrote something similar[0]. Basically I applied AFL principles to the JVM by similarly implementing bytecode instrumentation in the lighte

A little while back I wrote something similar[0]. Basically I applied AFL principles to the JVM by similarly implementing bytecode instrumentation in the lightest way I could and having "passes" of sorts that manipulated inputs using stages like AFL does. The readme explains the implementation details (I don't really maintain it or use it anymore and I never even published it to Maven, so it has old invalid jitpack links, but the code is quite solid). 0 - https://github.com/cretz/javan-warty-pig https://github.com/cretz/javan-warty-pig