Apache Flink
Map Algebra Modeling Language
Scala library providing "source" metadata to your program, similar to Python's __name__, C++'s __LINE__ or Ruby's __FILE__.
Stop JVMs using remote actors
Elasticsearch Query GUI Client
Scala library for creating temporary PostgreSQL databases
How to send logs from the Play! framework to Graylog
macro-compat is a small library which allows you to compile macros with Scala 2.10.x which are written to the Scala 2.11/2.12/2.13 macro API.
Use standard scala collections to unit test your Spark code.
Generate untyped scala.reflect.Manifest instances at runtime from Strings in Scala 2.10, 2.11, 2.12.
psp's non-standard standard library (for scala)
A scala library to read & write huge bitmap images
Mapping from OTI models (i.e., OMG Tool-neutral Interface for UML) to generic OMF (Ontological Modeling Framework)
twitter bijection
Utilities for implementing unboxed restrictions of arbitrary types