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

Everything you need to know to get the job.

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.

The java implementation of Apache Dubbo. An RPC and microservice framework.

Getting Started with Spring Boot 3:

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

Render After Effects animations natively on Android and iOS, Web, and React Native

An image loading and caching library for Android focused on smooth scrolling

Netty project - an event-driven asynchronous network application framework

ZXing ("Zebra Crossing") barcode scanning library for Java, Android

Open Source Identity and Access Management For Modern Applications and Services

Mirror of Apache Kafka

Apache Flink

Bind Android views and callbacks to fields and methods.

APM, Application Performance Monitoring System

Redisson - Valkey & Redis Java client. Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue,…

A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)

JDK main-line development https://openjdk.org/projects/jdk

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.

Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.

IntelliJ IDEA & IntelliJ Platform

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

High Performance Inter-Thread Messaging Library

A high performance caching library for Java

The official home of the Presto distributed SQL query engine for big data

QuestDB is a high performance, open-source, time-series database