Alpakka is a Reactive Enterprise Integration library for Java
Scala 2 compiler and standard library
A tidy SQL-based DB access library for Scala developers
Distributed Tracing, Metrics and Context Propagation for applications
The pure asynchronous runtime for Scala
Wonderful reusable code from Twitter
Reactive Microservices for the JVM
Java-based scientific graphics
Scala libraries for building and consuming RESTful web services
Rule Interpreter for natural date descriptions