201.OpenHFT / Chronicle-Queue
Micro second messaging that stores everything to disk
Ranked by Attention Score: stars gained over the last 30 complete days
201–300 of 545 by Attention Score · Oct 4, 2026 – Nov 2, 2026 (UTC)
Micro second messaging that stores everything to disk
A cluster computing framework for processing large-scale geospatial data
StackGres Operator, Full Stack PostgreSQL on Kubernetes // !! Mirror repository of https://gitlab.com/ongresinc/stackgres, only accept Merge Requests there.
A Database of Real Faults and an Experimental Infrastructure to Enable Controlled Experiments in Software Engineering Research
A modern, lambda-friendly, 120 character Java formatter.
MyBatis SQL mapper framework for Java
CAT 作为服务端项目基础组件,提供了 Java, C/C++, Node.js, Python, Go 等多语言客户端,已经在美团点评的基础架构中间件框架(MVC框架,RPC框架,数据库框架,缓存框架等,消息队列,配置系统等)深度集成,为美团点评各业务线提供系统丰富的性能指标、健康状况、实时告警等。
Admin UI for administration of spring boot applications
Conductor is a microservices orchestration engine.
Image Cropping Library for Android
🤗 JVM 底层原理最全知识总结
Apache KIE (Knowledge Is Everything) is the home of Drools, OptaPlanner, jBPM, and Kogito.
Terasology - open source voxel world
Apache Cordova Android
Java client for Kubernetes & OpenShift
Apache NetBeans
A better build tool for Java, Scala and Kotlin: Simpler than Maven, easier than Gradle, with 3-7x faster dev workflows than other JVM build tools
ssh, scp and sftp for java
Security engine for Java (authentication, authorization, multi frameworks): OpenID Connect, SAML2, CAS, OAuth, LDAP, JWT...
Google Cloud Client Library for Java
JLine is a Java library for handling console input.
Mixin is a trait/mixin and bytecode weaving framework for Java using ASM
Nessie: Transactional Catalog for Data Lakes with Git-like semantics
The Wikimedia Commons Android app allows users to upload pictures from their Android phone/tablet to Wikimedia Commons
PHPStorm Plugin for Magento 2
Gravitee.io - OpenSource API Management
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 math code and a java based math library on top of the core c++ library. Also includes samediff: a pytorch/tensorflow like library for running deep learn...
Android开发人员不得不收集的工具类集合 | 支付宝支付 | 微信支付(统一下单) | 微信分享 | Zip4j压缩(支持分卷压缩与加密) | 一键集成UCrop选择圆形头像 | 一键集成二维码和条形码的扫描与生成 | 常用Dialog | WebView的封装可播放视频 | 仿斗鱼滑动验证码 | Toast封装 | 震动 | GPS | Location定位 | 图片缩放 | Exif 图片添加地理位置信息(经纬度) | 蛛网等级 | 颜色选择器 | ArcGis | VTPK | 编译运行一下说不定会找到惊喜
Java DSL for easy testing of REST services
Modern Load Testing as Code
An Open-Source Collection of Flash Cards to Help You Preparing Your Algorithms & Data Structures and System Design Interviews 💯
Android virtual machine and deobfuscator
Awaitility is a small Java DSL for synchronizing asynchronous operations
Simple Binary Encoding (SBE) - High Performance Message Codec
Apache Avro is a data serialization system.
Java library for parsing and rendering CommonMark (Markdown)
The flexible, easy to use, all in one drawer library for your Android project. Now brand new with material 2 design.
Cracking the Coding Interview 6th Ed. Solutions
An annotation processor for generating type-safe bean mappers
An application observability facade for the most popular observability tools. Think SLF4J, but for observability.
Fault tolerance and resilience patterns for the JVM
Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.
Spoon is a metaprogramming library to analyze and transform Java source code. :spoon: is made with :heart:, :beers: and :sparkles:. It parses source files to build a well-designed AST with powerful analysis and transformation API.
(Official) The DSpace digital asset management system that powers your Institutional Repository
jquick‑curl: Java library to run raw curl commands, support copy‑paste curl from Postman/Apifox/Browser DevTools, no need to write HTTP client code.
Apache Artemis
Kroxylicious, the snappy open source proxy for Apache Kafka®
RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
IntelliJ IDEA 简体中文专题教程
A reference implementation of a JSON package in Java.
Library for OpenAPI 3 with spring-boot
A process for collecting metrics using JMX MBeans for Prometheus consumption
Manifold is a Java compiler plugin, its features include Metaprogramming, Properties, Extension Methods, Operator Overloading, Templates, a Preprocessor, and more.
The SpotBugs plugin for security audits of Java web applications and Android applications. (Also work with Kotlin, Groovy and Scala projects)
Vector map library and writer - running on Android and Desktop.
A library that creates fully populated objects for your unit tests.
A scalable, mature and versatile web crawler based on Apache Storm
Java library for the Stripe API.
The ultimate distributed MQTT broker. Handles 100M+ connections and 10M msg/sec with ease. Built on Kafka to provide industrial-grade persistence and eliminate data loss.
Canonical GTFS Validator project for schedule (static) files.
J2ME emulator for Android (unofficial fork of https://github.com/nikita36078/J2ME-Loader)
JQuick-Pdf is an enterprise-grade Java PDF generation framework. It provides HTML-like declarative syntax and supports more than 30 kinds of graphs, greatly simplifying complex PDF report creation while retaining full native pdfbox(since version 4.0.0) APIs.
Vert.x is a tool-kit for building reactive applications on the JVM
The Community Maintained High Velocity Web Framework For Java and Scala.
Ad-Free, New Features & Freedom
The Java gRPC implementation. HTTP/2 based RPC
[Examples] Simple basic isolated apps, for budding flutter devs.
Java binary serialization and cloning: fast, efficient, automatic
Asynchronous, non-blocking HTTP & WebSocket client for the JVM
📌 异步线程池框架,支持线程池动态变更&监控&报警,无需修改代码轻松引入。Asynchronous thread pool framework, support Thread Pool Dynamic Change & monitoring & Alarm, no need to modify the code easily introduced.
Database documentation built easy
An XMPP server licensed under the Open Source Apache License.
[Android] Round Corner Progress Bar Library for Android
TwelveMonkeys ImageIO: Additional plug-ins and extensions for Java's ImageIO
An extensible Java library for HTTP request and response logging
TEAMMATES is a feedback management tool for education
Free database schema discovery and comprehension tool
OpenDDS is an open source C++ implementation of the Object Management Group (OMG) Data Distribution Service (DDS). OpenDDS also supports Java bindings through JNI.
Secure and speedy templates for Java and Kotlin.
A networking framework that evolves with your application
Official plugins for Capacitor ⚡️
The Chemistry Development Kit
The official Android app for OneBusAway
Awesome list about everything related to J2ME. Documentation, academic papers, tutorials, communities, IDEs, SDKs, emulators, apps, video games.
Universal cheminformatics toolkit, utilities and database search tools
SquirrelJME is a Java ME 8 Virtual Machine for embedded and Internet of Things devices. It has the ultimate goal of being 99.9% compatible with the Java ME standard.
phase4 - AS4 client and server for integration into existing systems. Specific support for Peppol and CEF eDelivery built-in.
Declarative Java engine for structured documents. Automatic layout, pagination, reusable templates and themes. Render print-ready PDF, export editable PowerPoint, or generate semantic DOCX.
This is a sample app that is part of a series of blog posts I have written about how to architect an android application using Uncle Bob's clean architecture approach.
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.
Feign makes writing java http clients easier
Alibaba Dragonwell8 JDK
The Enterprise-ready testing and specification framework.
Bastillion gives you a clean, browser-based way to manage SSH access across all your systems—like a bastion host with a friendly dashboard.
Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.
GraphQL for Java with Spring Boot made easy.
Twitter Text Libraries. This code is used at Twitter to tokenize and parse text to meet the expectations for what can be used on the platform.
Cucumber for the JVM
Libraries to help developers express architectural abstractions in Java code
Artificial Intelligence framework for games based on libGDX or not. Features: Steering Behaviors, Formation Motion, Pathfinding, Behavior Trees and Finite State Machines