Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

Free and Open Source, Distributed, RESTful Search Engine

Spring Framework

Google core libraries for Java

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

Getting Started with Spring Boot 3:

Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas

Netty project - an event-driven asynchronous network application framework

Mirror of Apache Kafka

Apache Flink

To Be Top Javaer - Java工程师成神之路

Jenkins automation server

Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex di…

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

光 HikariCP・A solid, high-performance, JDBC connection pool at last.

IntelliJ IDEA & IntelliJ Platform

Zipkin is a distributed tracing system

Most popular Mocking framework for unit tests written in Java

Apache Pulsar - distributed pub-sub messaging system

The ZAP by Checkmarx Core project

Suite of tools for deploying and training deep learning models using the JVM. Highlights include model import for keras, tensorflow, and onnx/pytorch, a modular and tiny c++ library for running mat…

Apache Druid: a high performance real-time analytics database.

Very spicy additions to the Java programming language.

The Java gRPC implementation. HTTP/2 based RPC

Open-Source Web UI for Apache Kafka Management

Cracking the Coding Interview 6th Ed. Solutions

Java JWT: JSON Web Token for Java and Android

A Java API for generating .java source files.

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

Continuous Inspection