JavaPoet is a Java API for generating .java source files.
Dexposed is a powerful yet non-invasive runtime AOP (Aspect-oriented Programming) framework for Android app development, based on the work of open-source Xposed framework project.
Simple binary instrumentation toolkit for Android ARM + Thumb.
Simple and easy to use toolkit for dynamic instrumentation of Dalvik code. Instrumentation is based on library injection and hooking method entry points (in-line hooking). The actual instrumentation code is written using the JNI interface.
Extended Javassist for Android. DEX (ODEX) file can be made from .class file that is generated by Javassist.
KPoet is a Kotlin extensions library on top of JavaPoet that helps you write code generators / annotation processors that feel like actually writing Java code directly. It provides a Kotlin DSL syntax that resembles real java code as much as possible. Also it attempts to make the code generator writing clear as writing native java code itself.
JavaPoet Simple Builder.
Minimalist, annotation based, hook framework for Android built on top of AspectJ.