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Apache Calcite

dynamic datasource for springboot 多数据源动态数据源主从分离读写分离分布式事务

Linux运维监控工具，支持系统硬件信息，内存，CPU，温度，磁盘空间及IO，硬盘smart，GPU，防火墙，网络流量速率等监控，服务接口监测，大屏展示，拓扑图，端口监控，进程监控，docker监控，日志监控，文件防篡改，数据库监控，指令批量下发执行，web ssh，Linux面板(探针)，告警，SNMP监测，K8S，Redis，Nginx，Kafka，资产管理，计划任务，密码管理，工作笔记

tencentmusic / supersonic

SuperSonic is the next-generation AI+BI platform that unifies Chat BI (powered by LLM) and Headless BI (powered by semantic layer) paradigms.

rstudio / rstudio

RStudio is an integrated development environment (IDE) for R

oracle / opengrok

OpenGrok is a fast and usable source code search and cross reference engine, written in Java

AsamK / signal-cli

signal-cli provides an unofficial commandline, JSON-RPC and dbus interface for the Signal messenger.

spring-cloud / spring-cloud-gateway

An API Gateway built on Spring Framework and Spring Boot providing routing and more.

discord-jda / JDA

Java wrapper for the popular chat & VOIP service: Discord https://discord.com

rememberber / WePush

专注批量推送的小而美的工具，目前支持：模板消息-公众号、模板消息-小程序、微信客服消息、微信企业号/企业微信消息、阿里云短信、阿里大于模板短信、腾讯云短信、云片网短信、E-Mail、HTTP请求、钉钉、华为云短信、百度云短信、又拍云短信、七牛云短信

torakiki / pdfsam

PDFsam, a desktop application to split, merge, mix, rotate PDF files and extract pages

geoserver / geoserver

Official GeoServer repository

LibrePDF / OpenPDF

OpenPDF is an open-source Java library for creating, editing, rendering, and encrypting PDF documents, as well as generating PDFs from HTML. It is licensed under the LGPL and MPL.

apache / streampark

The Open Control Plane for Real-Time Data

jMonkeyEngine / jmonkeyengine

A complete 3-D game development suite written in Java.

camunda / camunda

Process Orchestration Framework

lilishop / lilishop

Java 开源商城系统，基于 Spring Boot / Spring Cloud / Vue / Uniapp 的 B2B2C 多商户商城源码，支持小程序商城、微服务、分销、直播、秒杀、Docker 私有化部署。

DependencyTrack / dependency-track

Dependency-Track is an intelligent Component Analysis platform that allows organizations to identify and reduce risk in the software supply chain.

JFormDesigner / FlatLaf

FlatLaf - Swing Look and Feel (with Darcula/IntelliJ themes support)

uber / NullAway

A tool to help eliminate NullPointerExceptions (NPEs) in your Java code with low build-time overhead

portfolio-performance / portfolio

Track and evaluate the performance of your investment portfolio across stocks, cryptocurrencies, and other assets.

apache / tika

The Apache Tika toolkit detects and extracts metadata and text from over a thousand different file types (such as PPT, XLS, and PDF).

MeteorDevelopment / meteor-client

Based Minecraft utility mod.

RoaringBitmap / RoaringBitmap

A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others

google / copybara

Copybara: A tool for transforming and moving code between repositories.

dromara / liteflow

Lightweight, fast, stable, programmable component-based rule engine — where AI Agents orchestrate just like ordinary components. Uniquely designed DSL: component reuse, sync/async & dynamic orchestration, multi-language scripting, nested rules, hot deployment and smooth refresh. If you can orchestrate LiteFlow, you can orchestrate AI.

rbmonster / learning-note

Java开发及面试（个人面试、工作总结、资料收集站）

PeterCxy / Shelter

This repository is a mirror of https://gitea.angry.im/PeterCxy/Shelter. For bug reports, use https://lists.sr.ht/~petercxy/shelter

immutables / immutables

Java annotation processor to create immutable objects and builders, for records too. Sweep boilerplate code under the rug!

EngineHub / WorldEdit

🗺️ Minecraft map editor and mod

aeron-io / simple-binary-encoding

Simple Binary Encoding (SBE) - High Performance Message Codec

Neamar / KISS

Lightning fast, open-source, < 250kb Android launcher

Snailclimb / interview-guide

基于 Spring Boot 4.1、Java 25、Spring AI 2.0、React、PostgreSQL/pgvector、Redis 和 RustFS 构建的开源 AI 面试平台，支持简历智能分析、模拟面试、语音面试和知识库 RAG。

apache / nutch

Apache Nutch is an extensible and scalable web crawler

oracle / visualvm

VisualVM is an All-in-One Java Troubleshooting Tool

apache / gravitino

World's most powerful open data catalog for building a high-performance, geo-distributed and federated metadata lake.

Wisser / Jailer

Database Subsetting and Relational Data Browsing Tool.

power721 / alist-tvbox

AList proxy server for TvBox, support playlist and search.

tlaplus / tlaplus

TLC is a model checker for specifications written in TLA+. The TLA+Toolbox is an IDE for TLA+.

researchxxl / syncthing-android

Syncthing-Fork - A Syncthing Wrapper for Android.

erupts / erupt

Code as configuration. Annotate a Java entity with @Erupt and ship a production-grade admin backend in minutes — UI, RBAC, audit logs and APIs, all generated at runtime. No codegen, no frontend.

sepinf-inc / IPED

IPED Digital Forensic Tool. It is an open source software that can be used to process and analyze digital evidence, often seized at crime scenes by law enforcement or in a corporate investigation by private examiners.