Vert.x is a tool-kit for building reactive applications on the JVM
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.
Eclipse Jetty® - Web Container & Clients - supports HTTP/3, HTTP/2, HTTP/1, websocket, servlets, and more
SOFARPC is a high-performance, high-extensibility, production-level Java RPC framework.
Vert.x examples
A networking framework that evolves with your application