Design patterns implemented in Java

Spring Framework

Google core libraries for Java

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

A libre lightweight streaming front-end for Android.

A browser automation framework and ecosystem.

The automation tower defense RTS

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

a fast, scalable, multi-language and extensible build system

RxJava bindings for Android

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

A collection of algorithms and data structures

A fast dependency injector for Android and Java.

Most popular Mocking framework for unit tests written in Java

Arduino IDE 1.x

Android Transition animations explanation with examples.

Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

The Clojure programming language

✅ The programmer-friendly testing framework for Java and the JVM

Android Unit Testing Framework

Keep your code spotless

Non-Blocking Reactive Foundation for the JVM

🔬 Java Code Coverage Library

High performance non-blocking webserver

Generates a unified GraphQL schema from gRPC microservices and other Protobuf sources

CP4 Free Source Code Project (C++17, Java11, Python3 and OCaml)

A persistent CookieJar implementation for OkHttp 3 based on SharedPreferences.

Minimal UI library for Android inspired by React

Linux CLI Launcher for Android

A smart and simple plugin that provides keyboard shortcut access for Dash, Velocity or Zeal in IntelliJ IDEA, RubyMine, WebStorm, PhpStorm, PyCharm and Android Studio.