Euphoria is an open source Java API for creating unified big-data processing flows. It provides an engine independent programming model which can express both batch and stream transformations.
Process authoring tool for Apache Flink
flink-jpmml is a fresh-made library for dynamic real time machine learning predictions built on top of PMML standard models and Apache Flink streaming engine
A simple JUnit Rule for Apache Flink
Framework for Apache Flink unit tests