Design patterns implemented in Java

Netty project - an event-driven asynchronous network application framework

AWS Service registry for resilient mid-tier load balancing and failover.

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

Resilience4j is a fault tolerance library designed for Java8 and functional programming

📈 Capturing JVM- and application-level metrics. So you know what's going on.

Apache Tomcat

Asynchronous Http and WebSocket Client library for Java

Generate Java types from JSON or JSON Schema and annotate those types for data-binding with Jackson, Gson, etc

Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.

Apache Camel is an open source integration framework that empowers you to quickly and easily integrate various systems consuming or producing data.

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, R…

Reactive Streams Specification for the JVM

Java runtime metadata analysis

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

High performance non-blocking webserver

This is no longer the active Jersey repository. Please see the README.md

Ultimate Component Suite for JavaServer Faces

Java Apple Push Notification Service Provider

Java Deferred/Promise library similar to JQuery.

former home of the groovy programming language, moved to https://github.com/apache/groovy

Java Driver for Apache Cassandra®

Automated Canary Service

Java monitoring for the command-line, profiler included

Distributed Stream and Batch Processing

An Intuitive Event-Driven Reactive Programming Library for Java

The Java microservice lib. QBit is a reactive programming lib for building microservices - JSON, HTTP, WebSocket, and REST. QBit uses reactive programming to build elastic REST, and WebSockets base…

The CometD project, a scalable comet (server push) implementation for web messaging.

A compressed alternative to the Java BitSet class

Interactive command line JMX client