Design patterns implemented in Java

Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

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.

Bind Android views and callbacks to fields and methods.

Apache Flink

Desktop/Android/HTML5/iOS Java game development framework

FizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes.

光 HikariCP・A solid, high-performance, JDBC connection pool at last.

High Performance Inter-Thread Messaging Library

IntelliJ IDEA Community Edition & IntelliJ Platform

A fast dependency injector for Android and Java.

Modular and customizable Material Design UI components for Android

A high performance caching library for Java

Very spicy additions to the Java programming language.

jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.

A Java API for generating .java source files.

Java JWT: JSON Web Token for Java and Android

A simple expressive web framework for java. Spark has a kotlin DSL https://github.com/perwendel/spark-kotlin

Feign makes writing java http clients easier

PocketHub Android App

Java JsonPath implementation

Spring Security

A programmer-oriented testing framework for Java.

A damn simple library for building production-ready RESTful web services.

Test Automation Made Simple

📈 Capturing JVM- and application-level metrics. So you know what's going on.

A fast dependency injector for Android and Java.

Tiny, easily embeddable HTTP server in Java.

Java DSL for easy testing of REST services