Vert.x is a tool-kit for building reactive applications on the JVM

Apache OpenWhisk is a serverless event-based programming service and an Apache Incubator project.

The source code for The Terraform Book

Sensu documentation.

Code School Project: HTML + CSS Portfolio

Hollow is a java library and comprehensive toolset for harnessing small to moderately sized in-memory datasets which are disseminated from a single producer to many consumers for read-only access.

Mirror of Apache Deltaspike

Source repo for Docker's Documentation, output served at docs.docker.com

Examples of Swarmic applications

The next generation of JUnit.

The official AWS SDK for Java.

Hammock, its basically Spring Boot but for CDI

A Java web MVC action-based framework