Eclipse Jetty? - Web Container & Clients - supports HTTP/2, HTTP/1.1, HTTP/1.0, websocket, servlets, and more

This package allows OkHttp and Retrofit users to use Cronet as their transport layer, benefiting from features like QUIC/HTTP3 support or connection migration.

A QUIC client, client library and server implementation in Java. Supports HTTP3 with "Flupke" add-on.

QUIC transport protocol and HTTP/3 for Java

Pure Java implementation of QUIC

How to implement HTTP/3 with Spring Boot and Jetty

Google cloud CDN support HTTP/2 and QUIC , Here is a demo of an Android app.

XYZ Reader Android Application During the Nanodegree program by Udacity