Java

Apache RocketMQapache/rocketmq

A distributed cloud-native messaging and streaming platform for building event-driven applications with low latency and high reliability.

RocketMQapache/incubator-rocketmq

A distributed cloud-native messaging and streaming platform for building event-driven applications with high performance and reliability.

JHipsterjhipster/generator-jhipster

A development platform to quickly generate, develop, and deploy modern web applications and microservice architectures.

Exoplayergoogle/ExoPlayer

A deprecated Android media playback library, now superseded by AndroidX Media3.

Graaloracle/graal

GraalVM compiles Java and other JVM languages into native executables for instant startup, peak performance, and reduced resource usage.

Trufflegraalvm/truffle

GraalVM compiles applications ahead of time into standalone native binaries for instant startup, peak performance, and reduced resource usage.

HikariCPbrettwooldridge/HikariCP

A solid, high-performance, zero-overhead JDBC connection pool for Java applications.

ShardingSphereapache/shardingsphere

An enterprise distributed database ecosystem that enhances heterogeneous databases with sharding, scalability, and security via JDBC and Proxy access layers.

MyBatismybatis/mybatis-3

A SQL mapper framework for Java that couples objects with SQL statements using XML or annotations.

Online BoutiqueGoogleCloudPlatform/microservices-demo

A sample cloud-native e-commerce application built with 11 microservices to demonstrate Kubernetes, Istio, and gRPC best practices.

IntelliJ IDEA Community EditionJetBrains/intellij-community

The open-source codebase for IntelliJ IDEA and the IntelliJ Platform, enabling IDE and plugin development.

RxAndroidReactiveX/RxAndroid

Android-specific bindings for RxJava that simplify reactive programming on Android with main thread scheduling.

Filamentgoogle/filament

A real-time physically based rendering engine for Android, iOS, Windows, Linux, macOS, and WebGL2.

Picassosquare/picasso

A deprecated Android library for downloading and caching images with a simple API.

APIJSONTencent/APIJSON

A real-time, no-code ORM that provides APIs and documentation automatically, allowing frontend clients to customize JSON responses.

Flexbox layoutgoogle/flexbox-layout

A library that brings CSS Flexbox layout capabilities to Android, enabling flexible and responsive UI design.

VLCvideolan/vlc

A libre, cross-platform media player and multimedia engine that plays virtually any audio or video format.

GitHub repositorymicrosoft/AirSim

Open-source simulator for drones and autonomous vehicles built on Unreal Engine and Unity, designed for AI research.

LeetCode Problems' Solutions written in C++haoel/leetcode

A comprehensive collection of LeetCode problem solutions in C++, Java, and Python.

Ruffleruffle-rs/ruffle

An Adobe Flash Player emulator written in Rust that runs on desktop and web via WebAssembly.

Falsehoods about Phone Numbersgooglei18n/libphonenumber

Google's library for parsing, formatting, and validating international phone numbers across Java, C++, and JavaScript.

libphonenumbergooglei18n/libphonenumber

Google's library for parsing, formatting, and validating international phone numbers across Java, C++, and JavaScript.

swagger-codegenswagger-api/swagger-codegen

A template-driven engine to generate API clients, server stubs, and documentation from OpenAPI/Swagger definitions.

Dagger 2google/dagger

A compile-time dependency injection framework for Java and Android that generates plain Java source code.

caffeineben-manes/caffeine

A high-performance, near-optimal in-memory caching library for Java with a Guava-inspired API.

CNTK - Microsoft Cognitive ToolkitMicrosoft/CNTK

A unified deep learning toolkit for describing neural networks as computational graphs, supporting feed-forward DNNs, CNNs, and RNNs/LSTMs.

Zipkinopenzipkin/zipkin

A distributed tracing system that collects and queries timing data to troubleshoot latency problems in microservices.

MyBatis-Plusbaomidou/mybatis-plus

A powerful enhanced toolkit for MyBatis that simplifies database operations with out-of-the-box features.

QuestDBquestdb/questdb

An open-source time-series database for high-speed ingestion and low-latency SQL queries.

foundationdbapple/foundationdb

An open-source, distributed, transactional key-value store designed for large-scale structured data across commodity servers.

Capacitorionic-team/capacitor

Build cross-platform native Progressive Web Apps for iOS, Android, and the Web with a single JavaScript codebase.

Bytecode ViewerKonloch/bytecode-viewer

A lightweight Java/Android reverse engineering suite with decompilers, disassemblers, and advanced analysis tools.

Mockitomockito/mockito

The most popular mocking framework for unit tests written in Java.

Apache Pulsarapache/incubator-pulsar

A distributed pub-sub messaging platform with flexible messaging models, strong consistency, and multi-tenant support.

JD-GUIjava-decompiler/jd-gui

A standalone graphical utility that displays Java source code from compiled CLASS files.

Zapzaproxy/zaproxy

A free, open-source web application security scanner for finding vulnerabilities during development and testing.