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Design patterns implemented in Java

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.

All Algorithms implemented in Java

Spring Framework

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.

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

A libre lightweight streaming front-end for Android.

Redisson - Valkey and 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, Queu…

Jenkins automation server

The automation tower defense RTS

Modern Java - A Guide to Java 8

基于Spring+SpringMVC+Mybatis分布式敏捷开发系统架构，提供整套公共微服务服务模块：集中权限管理（单点登录）、内容管理、支付中心、用户管理（支持第三方登录）、微信平台、存储系统、配置中心、日志分析、任务和通知等，支持服务治理、监控和追踪，努力为中小型企业打造全方位J2EE企业级开发解决方案。

Vert.x is a tool-kit for building reactive applications on the JVM

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…

Very spicy additions to the Java programming language.

The ZAP by Checkmarx Core project

Redis Java client

Java JWT: JSON Web Token for Java and Android

Apache Tomcat

SVG library for React Native, React Native Web, and plain React web projects.

A JavaScript checker and optimizer.

Code for Quartz Scheduler

Hibernate's core Object/Relational Mapping functionality

Java implementation of JSON Web Token (JWT)

Java libraries for writing microservices

Framework for Evolutionary Message-Driven Microservices on the JVM