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

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

Netty project - an event-driven asynchronous network application framework

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

Eclipse Paho Java MQTT client library. Paho is an Eclipse IoT project.

Cloud9 is a Hadoop toolkit for working with big data