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

A Java API for generating .java source files.

A collection of source code generators for Java.

Catch common Java mistakes as compile-time errors

Reactive Streams Specification for the JVM

An in-memory file system for Java

Command line parsing framework for Java

A client- and server-side templating system that helps you dynamically build reusable HTML and UI elements

RxJava2 integration with JDBC including Non-blocking Connection Pools