Java

hollowNetflix/hollow

A Java library for disseminating in-memory datasets from a single producer to many consumers for high-performance read-only access.

Java Concurrency Checklistcode-review-checklists/java-concurrency

A comprehensive checklist for reviewing Java concurrency code, covering design, documentation, synchronization, race conditions, and scalability.

LoggingInterceptorihsanbal/LoggingInterceptor

An OkHttp interceptor with a pretty logger for Android HTTP requests and responses, including mock support.

astrobeenasa/astrobee

Open-source flight software, simulator, and tools for NASA's Astrobee free-flying robots on the International Space Station.

Bank of AnthosGoogleCloudPlatform/bank-of-anthos

A sample retail banking application demonstrating modern cloud-native development with Kubernetes and Google Cloud services.

Milkmanwarmuuh/milkman

A fast, extensible JavaFX-based workbench for crafting and testing HTTP, gRPC, GraphQL, and other requests via plugins.

metaqkillme2008/Metamorphosis

A high-availability, high-performance Java message queue system similar to Apache Kafka with optimizations for production use.

jnr-ffijnr/jnr-ffi

A Java library for loading native libraries without writing JNI code by hand.

Sentry cgetsentry/sentry-java

Official Sentry SDK for error monitoring and performance tracking in Java, Android, and other JVM-based applications.

DexPatMartin/Dex

A Java/Groovy/JavaFX data visualization tool for ETL, machine learning, and publishing web visualizations.

Orikaorika-mapper/orika

A Java bean mapping framework that uses bytecode generation for fast and flexible object-to-object copying.

minio-javaminio/minio-java

A Java SDK for performing bucket and object operations on Amazon S3 compatible object storage services.

gdx-ailibgdx/gdx-ai

A high-performance Java AI framework for games, featuring steering behaviors, pathfinding, behavior trees, and finite state machines.

Dataflow TemplatesGoogleCloudPlatform/DataflowTemplates

A collection of pre-built Google Cloud Dataflow templates for common data import/export, backup, and bulk API operations.

Simple Java Mailbbottema/simple-java-mail

A lightweight Java mailing library with a simple API for sending complex emails, built on Jakarta Mail.

react-native-video-processingshahen94/react-native-video-processing

A React Native library for native video editing, trimming, compression, and processing on iOS and Android.

Javaappium/java-client

Java language binding for writing Appium tests that conform to the W3C WebDriver Protocol.

WPILibwpilibsuite/allwpilib

Core libraries for creating robot programs for the FIRST Robotics Competition roboRIO.

Logback Androidtony19/logback-android

A lite version of logback that provides a highly configurable logging framework for Android apps.

Mobiusspotify/mobius

A functional reactive framework for managing state evolution and side-effects in Android and JVM applications.

ObjectiveSqlbraisdom/ObjectiveSql

A Java ORM framework using ActiveRecord pattern that enables writing SQL expressions with Java syntax for rapid development.

XodusJetBrains/xodus

A transactional, schema-less embedded database written in Java and Kotlin, used by JetBrains YouTrack and Hub.

vlcjcaprica/vlcj

A Java framework for embedding native VLC media players in Java applications, providing high-level bindings to LibVLC.

SonarJSSonarSource/SonarJS

A static code analyzer for JavaScript, TypeScript, and CSS that detects quality and security issues.

jvmtoppatric-r/jvmtop

A lightweight command-line tool for monitoring Java Virtual Machines with a top-like interface and built-in CPU profiler.

AvianReadyTalk/avian

A lightweight Java Virtual Machine and class library for building self-contained applications.

ultravenantius/ultra

A Leiningen plugin that enhances the Clojure development environment with colorized REPL output, better stacktraces, and improved test reporting.

JavaNNivan-vasilev/neuralnetworks

A Java deep learning framework implementing neural networks with GPU acceleration via OpenCL and Aparapi.

react-native-facebook-loginmagus/react-native-facebook-login

A React Native component wrapping the native Facebook SDK login button and manager for iOS and Android.

pcap4jkaitoy/pcap4j

A Java library for capturing, crafting, and sending network packets via native pcap libraries.

muCommandermucommander/mucommander

A lightweight, cross-platform file manager with a dual-pane interface, built with Java.

SonarJavaSonarSource/sonar-java

A static analyzer for Java that detects code quality issues, security vulnerabilities, and bugs with over 600 rules.

JBotrampatra/jbot

A Java framework for building Slack and Facebook bots with minimal boilerplate code.

Open Officeapache/openoffice

A full-featured, open-source office productivity suite supporting word processing, spreadsheets, presentations, and more.

Jansifusesource/jansi

A Java library for ANSI escape sequence support in console output, including Windows compatibility.

Javainfluxdata/influxdb-java

Official Java client library for InfluxDB 1.x, enabling Java applications to write and query time series data.