A simple expressive web framework for java. Spark has a kotlin DSL https://github.com/perwendel/spark-kotlin

✅ The programmer-friendly testing framework for Java and the JVM

Parallel Collectors is a toolkit easing parallel collection processing in Java using Stream API.

The Capsule Hash Trie Collections Library

🎼 Bach Builds (on(ly)) Modules

Minimal overhead Java logging

Parse CLI command lines

intelligent defaults for displaying any FOV

Missing Stream API functionality you always longed for - provided via Stream API Gatherers

simple tail call optimization and stack safety for Java

a mutation testing engine for Java based on mutant schemata / metamutants / metaprogramming