Distributed Tracing, Metrics and Context Propagation for application running on the JVM
Deeplearning4j, ND4J, DataVec and more - deep learning & linear algebra for Java/Scala with GPUs + Spark - From Skymind
Scala image processing library
Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API
Scala libraries and tooling utilizing the Java Debugger Interface.
ENSIME JVM Process
A sbt plugin for checking Java code styles
Service Bus for java/scala services with RabbitMQ transport
An sbt plugin for formating Java code
Kamon JDBC Integration
The Scala library that adds extension methods to com.typesafe.config.
Play Ebean module
Standalone Play WS, an async HTTP client with fluent API
Kafka-based message queue
Pub/Sub built on top of FoundationDB
in-memory JMS broker for unit testing (Scala, Java)
scala/java interoperability, as deep as you want
Asynchronous database access for Scala and Java
DynamoDBJournal for Akka Persistence
The lightweight HTTP framework for Scala.