eXist-db is a feature rich Open Source native XML database
Java Image Processing Program
An event-driven asynchronous network application framework
Single sided linked list (kind of lib with test-code, C, C++ and java)
Java-based test automation framework (Maven + TestNG)
Makani was developed a commercial-scale airborne wind turbine
Mark Stephen Sobkow's Code Factory
The best Java library to work with .Net libraries and frameworks.
Roth is a full-stack enterprise application development framework.
C/C++ function instrumentation (AOP, exception/stack tracing, GC)
A powerful library to manage fragmentation on Android
Library for Android Camera 1 and 2 APIs
A Java VM for ARDUINO and other micros using the leJOS runtime.
Model-view-presenter and model-view-intent library for modern Android
JMEDS is a lightweight, modular extendable Java Framework for DPWS.
Build SSM from distributed micro service
A full-stack enterprise applicaiton portal framework.
A stack-oriented programming language suitable for code golfing
Extend GDB Server feature, OS Aware Debugging, Thread Stack Checking
The Tina4 Stack, selected tools for making PHP development much easier
JAFFA is a Rich Web 2.0 POJO based Event-Driven SOA framework
Bit level lambda continuations and nothing else - Queue automata
Ulbora CMS 2.0 is the first MEAN stack CMS and blogging platform.
Immutable/Persistent Collections Library