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

Spring Framework

Getting Started with Spring Boot 3:

Apache Kafka - A distributed event streaming platform

Telegram for Android source

The automation tower defense RTS

GoCD - Continuous Delivery server main repository

A tool for mocking HTTP services

Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.

MockServer enables easy mocking of any system you integrate with via HTTP or HTTPS with clients written in Java, JavaScript and Ruby. MockServer also includes a proxy that introspects all proxied t…

An application observability facade for the most popular observability tools. Think SLF4J, but for observability.

Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with…

Provide support to increase developer productivity in Java when using Elasticsearch. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style dat…

A Swagger to AsciiDoc or Markdown converter to simplify the generation of an up-to-date RESTful API documentation by combining documentation that’s been hand-written with auto-generated API documen…

A modular and portable open source XMPP client library written in Java for Android and Java (SE) VMs

Test-driven documentation for RESTful services

The map matching functionality is now located in the main repository https://github.com/graphhopper/graphhopper#map-matching

erlang tracing for the masses