The Open Source tool for monitoring applications running on the JVM
Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API
Scala image processing library
Play mailer plugin
Alpakka Kafka connector - Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.
Fun I/O provides functional, high level abstractions for codecs, sources, sinks, stores, archives, filters, sockets et al.
Asynchronous PostgreSQL driver for Scala and Java
Neuron DI is a new approach for Dependency Injection in Java and Scala.
Scala libraries and tooling utilizing the Java Debugger Interface.
Spark-Transformers: Library for exporting Apache Spark MLLIB models in to use them in any Java application with no other dependencies.
scala/java interoperability, as deep as you want
PDF to JSON, JSON to PDF and etc.
Simple Journaling Queue Library
Loading native libraries in Play Framework
Probabilistic data structures java implementation.
Asynchronous database access for Scala and Java
Reactive Microservices for the JVM
The Pants Build System