line / armeria

Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.

jetty / jetty.project

Eclipse Jetty® - Web Container & Clients - supports HTTP/3, HTTP/2, HTTP/1, websocket, servlets, and more

yegor256 / takes

True Object-Oriented Java Web Framework without NULLs, Static Methods, Annotations, and Mutable Objects

undertow-io / undertow

High performance non-blocking webserver