apache / bookkeeper
Apache BookKeeper - a scalable, fault tolerant and low latency storage service optimized for append-only workloads
apache / bookkeeper
xuxueli / xxl-sso
A distributed single-sign-on framework.（单点登录框架XXL-SSO）
w3c / epubcheck
The conformance checker for EPUB publications
jplag / JPlag
State-of-the-Art Source Code Plagiarism & Collusion Detection. Check for plagiarism in a set of programs.
openmrs / openmrs-core
OpenMRS API and web application code
openremote / core
100% open-source IoT Platform - Integrate your devices, add intelligence, build custom apps
jchambers / pushy
A Java library for sending APNs (iOS/macOS/Safari) push notifications
jbangdev / jbang
Unleash the power of Java - JBang Lets Students, Educators and Professional Developers create, edit and run self-contained source-only Java programs with unprecedented ease.
openaudible / openaudible
Audiobook Manager for Audible Users
TimefoldAI / timefold-solver
The open source Solver AI for Java and Kotlin to optimize scheduling and routing. Solve the vehicle routing problem, employee rostering, task assignment, maintenance scheduling and other planning problems.
Sketchware-Pro / Sketchware-Pro
Sketchware Pro's sources in Java. Now anyone can contribute to Sketchware Pro.
vaadin / framework
Vaadin 6, 7, 8 is a Java framework for modern Java web applications.
standard-webhooks / standard-webhooks
The Standard Webhooks specification
apache / eventmesh
EventMesh is a new generation serverless event middleware for building distributed event-driven applications.
apache / plc4x
PLC4X The Industrial IoT adapter
google / adk-java
An open-source, code-first Java toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.
apache / guacamole-client
The Apache Guacamole web application, official extensions, and JavaScript library.
spring-guides / tut-spring-security-and-angular-js
Spring Security and Angular:: A tutorial on how to use Spring Security with a single page application with various backend architectures, ranging from a simple single server to an API gateway with OAuth2 authentication.
voghDev / PdfViewPager
Android widget that can render PDF documents stored on SD card, linked as assets, or downloaded from a remote URL.
mateaix / matecloud
🔥MateCloud是一款基于Spring Cloud Alibaba的微服务架构。目前已经整合Spring Boot 4.0.8、 SpringCloud 2025、Spring Cloud Alibaba 2025、Spring AI 2.0.1、Spring Security Oauth2、Feign、Dubbo、JetCache、RocketMQ等，支持多租户的低代码平台，Saas平台开发套件
aklivity / zilla
🦎 A lightweight, multi-protocol gateway for event-driven applications and AI agents. Expose and govern Kafka, MQTT, APIs, and MCP through one high-performance engine with shared routing, security, schema, and observability.
raodv / captcha
行为验证码(滑动拼图、点选文字)，前后端(java)交互，包含h5/Android/IOS/flutter/uni-app的源码和实现
Netflix / metacat
—
murraco / spring-boot-jwt
JWT auth service using Spring Boot, Spring Security and MySQL
polardb / polardbx-sql
PolarDB-X is a cloud native distributed SQL Database designed for high concurrency, massive storage, complex querying scenarios.
babyfish-ct / jimmer
The most advanced ORM of JVM, for both java & kotlin
bamlab / react-native-image-resizer
🗻 Resize local images with React Native
cloudfoundry / uaa
CloudFoundry User Account and Authentication (UAA) Server
hehonghui / AndroidEventBus
A lightweight eventbus library for android, simplifies communication between Activities, Fragments, Threads, Services, etc.
roncoo / roncoo-education
领课教育系统是一套基于点播、直播、考试、题库、任务等功能完善的在线教育系统，开源版是基于商业版精简实现的一个网课网校系统，致力于打造一个各行业都适用的在线培训系统、远程教学平台、学习管理系统、知识付费系统。
cgeo / cgeo
c:geo - The powerful Android geocaching app.
projectnessie / nessie
Nessie: Transactional Catalog for Data Lakes with Git-like semantics
jrvansuita / MaterialAbout
🔖 It's a material-design about screen to use on your Android apps. A developer profile and application information easy to integrate.
batfish / batfish
Batfish is a network configuration analysis tool that can find bugs and guarantee the correctness of (planned or current) network configurations. It enables network engineers to rapidly and safely evolve their network, without fear of outages or security breaches.
reactor / BlockHound
Java agent to detect blocking calls from non-blocking threads.
TiangongCraft / Tenet
Minecraft Forge Hybrid server implementing the Spigot/Bukkit API, formerly known as Thermos/Cauldron/MCPC+
objectionary / eo
EOLANG, an Experimental Pure Object-Oriented Programming Language Based on 𝜑-Calculus
Netflix / mantis
A platform that makes it easy for developers to build realtime, cost-effective, operations-focused applications
GoogleCloudPlatform / bank-of-anthos
Retail banking sample application showcasing Kubernetes and Google Cloud
OWASP / SecurityShepherd
Web and mobile application security training platform
tess1o / geopulse
A self-hosted, privacy-first location timeline platform: an open-source alternative to Google Timeline with automatic trip detection, Immich integration, and rich analytics.
opendatadiscovery / odd-platform
First open-source data discovery and observability platform. We make a life for data practitioners easy so you can focus on your business.
apache / rocketmq-dashboard
The state-of-the-art Dashboard of Apache RoccketMQ provides excellent monitoring capability. Various graphs and statistics of events, performance and system information of clients and application is evidently made available to the user.
apache / cassandra-java-driver
Java Driver for Apache Cassandra®
moyangzhan / langchain4j-aideepin
AI 应用平台（聊天、绘画、知识库、工作流、 MCP服务市场、语音输入输出、长期记忆） | AI application platform (Chat,Draw,RAG,Workflow,MCP marketplace, ASR,TTS, Long-term memory etc)
Endava / cats
CATS is a REST API Fuzzer and negative testing tool for OpenAPI endpoints. CATS automatically generates, runs and reports tests with minimum configuration and no coding effort. Tests are self-healing and do not require maintenance.
apache / struts
Apache Struts is a free, open-source, MVC framework for creating elegant, modern Java web applications
hantsy / spring-reactive-sample
Spring Reactive playground
infinispan / infinispan
Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store.
cuba-platform / cuba
CUBA Platform is a high level framework for enterprise applications development
spiculedata / saiku
Open-source semantic layer: one cube for Excel (MDX/XMLA), dashboards, and AI agents (MCP). Mondrian + Apache Calcite.
psi-probe / psi-probe
Advanced manager and monitor for Apache Tomcat, forked from Lambda Probe
sirthias / parboiled
Elegant parsing in Java and Scala - lightweight, easy-to-use, powerful.
pnoker / iot-dc3
IoT DC3 — Connect the Physical World to AI. An open-source Industrial IoT Runtime for Physical AI: 36 protocol drivers, edge-to-cloud data delivery, and an MCP tool gateway so AI agents act on devices in a safe, controllable, traceable loop.
FaceAISDK / FaceAISDK_Android
Android on_device Face Recognition 、 Liveness detection and 1:N & M:N Face Search SDK 端侧可离线人脸识别 活体检测 以及1:N M:N 人脸搜索SDK
OpenLiberty / open-liberty
Open Liberty is a highly composable, fast to start, dynamic application server runtime environment
bobbylight / RSyntaxTextArea
A syntax highlighting, code folding text editor for Java Swing applications.
zinggAI / zingg
Scalable master data management, identity resolution, entity resolution, and deduplication using ML
TDuckCloud / tduck-survey-form
为企业提供「免费」表单问卷能力，「开箱即用」快速赋能业务 A questionnaire system that can be privatized and deployed - 填鸭表单问卷系统（tduck-survey-form）表单系统-问卷系统
caprica / vlcj
Java framework for the vlc media player