Akka is a toolkit for building highly concurrent, distributed, and resilient message-driven applications for Java and Scala.

Scalatra is a simple, accessible and free web micro-framework. It combines the power of the JVM with the beauty and brevity of Scala, helping you quickly build high-performance web sites and APIs.

Flink : Connectors : Kafka

This module contains classes that are required by a task manager for execution of table programs. The content of this module is work-in-progress.

Akka is a toolkit for building highly concurrent, distributed, and resilient message-driven applications for Java and Scala.

Flink : State Backends : RocksDB

Flink : Tests

Flink : Formats : Avro

This module of Akka is marked as 'may change', which means that it is in early access mode, which also means that it is not covered by commercial support. An module marked 'may change' doesn't have to obey the rule of staying binary compatible ...

Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.

Flink : Connectors : Files