Netty project - an event-driven asynchronous network application framework
Source for the TechEmpower Framework Benchmarks project
Lightning fast and elegant mvc framework for Java8
A simple expressive web framework for java. News: Spark now has a kotlin DSL https://github.com/perwendel/spark-kotlin
CUBA Platform is a high level framework for enterprise applications development
A damn simple library for building production-ready RESTful web services.
The modular web framework for Java and Kotlin
Rapidoid - Extremely Fast, Simple and Powerful Java Web Framework and HTTP Server!