Desktop/Android/HTML5/iOS Java game development framework

A fast dependency injector for Android and Java.

The Clojure programming language

vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.

LWJGL is a Java library that enables cross-platform access to popular native APIs useful in the development of graphics (OpenGL, Vulkan, bgfx), audio (OpenAL, Opus), parallel computing (OpenCL, CUD…

Lightning fast, open-source, < 250kb Android launcher

Manifold is a Java compiler plugin, its features include Metaprogramming, Properties, Extension Methods, Operator Overloading, Templates, a Preprocessor, and more.

Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.

A J2ME emulator for Android.

Enhancing Java Stream API

Functional programming in Java

JavaCC - a parser generator for building parsers from grammars. It can generate code in Java, C++ and C#.

God's actual programming language.

configurable OSM offline router with elevation awareness, Java + Android

A minicraft remake

Java 8 annotation processor and framework for deriving algebraic data types constructors, pattern-matching, folds, optics and typeclasses.

Scientific calculator with complex numbers and graphing of user-defined functions.

Algebraic data types in Java.

adt4j - Algebraic Data Types for Java

Java regex library

A powerful scene-oriented JVM game engine, created with the objective of being a simple and efficient engine for creating 2d games in Java ☕

Deterministic state automata with Java