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

"Maven-node-grunt-gulp-npm-node-plugin to end all maven-node-grunt-gulp-npm-plugins." A Maven plugin that downloads/installs Node and NPM locally, runs NPM install, Grunt, Gulp and/or Karma.

KillrChat, a scalable chat backed by Apache Cassandra, AngularJS and Spring Boot

JUnit Rule for providing an embedded in-memory database for your tests

Minimal example of getting Dropwizard going with Gradle. (instead of Maven)

Sunrise, sunset and twlight calculations in Java