java

Core framework of openHAB

An artifact of fully-specified annotations to power static-analysis checks, beginning with nullness analysis.

Secure and speedy templates for Java and Kotlin.

Native JVM WebAssembly runtime

Fast Clojure Matrix Library

코딩 테스트 관련 기출문항을 풀어보고 소스코드 및 설명을 업로드합니다.

Open-source, self-hosted enterprise & site search server built on OpenSearch. Crawls web / file / DB / cloud sources, 20+ languages, REST API, and AI/RAG & semantic search. Apache-2.0.

Slimefun 4 - A unique Spigot/Paper plugin that looks and feels like a modpack. We've been giving you backpacks, jetpacks, reactors and much more since 2013.

Black Obfuscator is an obfuscator for Android APK DexFile, it can help developer to protect source code by control flow flattening, and make it difficult to analyze the actual program control flow.

🚀 List of distributed system projects for inspiration and learning to build distributed services from real world examples

The New Home for Spring Cloud AWS

HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support

IoT DC3 is a multi-protocol, cloud-native, AI-powered, open-source industrial IoT platform evolving toward AI agents. A complete IoT system solution: device connectivity, data acquisition, edge-to-cloud delivery and intelligent operations.

EvalEx is a handy expression evaluator for Java, that allows to evaluate simple mathematical and boolean expressions.

Apache OFBiz is an open source product for the automation of enterprise processes. It includes framework components and business applications for ERP, CRM, E-Business/E-Commerce, Supply Chain Management and Manufacturing Resource Planning. OFBiz provides a foundation and starting point for reliable, secure and scalable enterprise solutions.

SteVe - OCPP server implementation in Java. Your trusted open-source EV charging station management system since 2013. Used by CPOs, manufacturers and developers worldwide. Managed cloud →

Build a GraphQL service in seconds

The original Bukkit Multi-World Plugin!

An open source ML system for the end-to-end data science lifecycle

✎ Android client for Nextcloud Notes app.

Postgresql R2DBC Driver

Apache MINA sshd is a comprehensive Java library for client- and server-side SSH.

Official GanttProject repository.

(Official) The DSpace digital asset management system that powers your Institutional Repository

Diablo II remade using Java and LibGDX

jforgame是一个一站式游戏服务器开发框架。包含游戏服务器开发所需要的各种组件，比如socket服务端与客户端，高性能线程模型，自定义二进制消息编解码，自定义orm工具，异步持久化方案，游戏热更新，配置表自动化仓库，游戏通用工具等等，同时提供大量业务案例以供学习。亦可用于其他socket应用，例如及时聊天等。

Nginx module for embedding Clojure or Java or Groovy programs, typically those Ring based handlers.

SimpleITK: a layer built on top of the Insight Toolkit (ITK), intended to simplify and facilitate ITK's use in rapid prototyping, education and interpreted languages.

MapReduce, Spark, Java, and Scala for Data Algorithms Book

This project serves as an easy-to-understand setup for beginners , providing a base foundation in Spring Boot , MVC & hibernate.