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

Free and Open Source, Distributed, RESTful Search Engine

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

Getting Started with Spring Boot 3:

A browser automation framework and ecosystem.

Jenkins automation server

Idiomatic persistence for Java and relational databases

Code samples for YouTube APIs, including the YouTube Data API, YouTube Analytics API, and YouTube Live Streaming API. The repo contains language-specific directories that contain the samples.

FitNesse -- The Acceptance Test Wiki

TestNG testing framework

Rapidoid - Extremely Fast, Simple and Powerful Java Web Framework and HTTP Server!

The official home of JBidwatcher's source code, an eBay auction sniping, bidding & monitoring software application.

A java command line application with code samples

JBoss Logging