Apache ZooKeeper

Admin UI for administration of spring boot applications

LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.

A free, secure and open source app for Android to manage your 2-step verification tokens.

🥤 COLA: Clean Object-oriented & Layered Architecture

🔥🔥🔥Banner 2.0 来了！Android广告图片轮播控件，内部基于ViewPager2实现，Indicator和UI都可以自定义。

Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.

mall-swarm是一套微服务商城系统，采用了 Spring Cloud Alibaba、Spring Boot 3.5、Sa-Token、MyBatis、Elasticsearch、Docker、Kubernetes等核心技术，同时提供了基于Vue的管理后台方便快速搭建系统。mall-swarm在电商业务的基础集成了注册中心、配置中心、监控中心、网关等系统功能。

Tools to work with android .dex and java .class files

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

Generate diagrams from textual description

mall学习教程，架构、业务、技术要点全方位解析。mall项目（60k+star）是一套电商系统，使用现阶段主流技术实现。涵盖了SpringBoot、MyBatis、Elasticsearch、RabbitMQ、Redis、MongoDB、MySQL等技术，采用Docker容器化部署。

This is a picker view for android , support linkage effect, timepicker and optionspicker.（时间选择器、省市区三级联动）

No clever tagline needed.

Very spicy additions to the Java programming language.

MeterSphere 是新一代的开源持续测试工具，内置 AI 助手，让软件测试工作更简单、更高效，不再成为持续交付的瓶颈。

Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

Android Transition animations explanation with examples.

Picture Selector Library for Android or 图片选择器

🔎 Open source distributed and RESTful search engine.

🔥 A low-cost Android screen adaptation solution (今日头条屏幕适配方案终极版，一个极低成本的 Android 屏幕适配方案).

Spring源码阅读

✔️ Simple, pretty and powerful logger for android

APM, (Application Performance Management) tool for large-scale distributed systems.

Microservice Architecture with Spring Boot, Spring Cloud and Docker