Design patterns implemented in Java

A libre lightweight streaming front-end for Android.

Render After Effects animations natively on Android and iOS, Web, and React Native

Mirror of Apache Kafka

a fast, scalable, multi-language and extensible build system

FizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes.

High Performance Inter-Thread Messaging Library

Apache Pulsar - distributed pub-sub messaging system

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 mat…

Zuul is a gateway service that provides dynamic routing, monitoring, resiliency, security, and more.

Interview questions

A fast build system that encourages the creation of small, reusable modules over a variety of platforms and languages.

A podcast manager for Android

A fast dependency injector for Android and Java.

Gephi - The Open Graph Viz Platform

vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.

Java 1-24 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.

The Physical Web: walk up and use anything

JanusGraph: an open-source, distributed graph database

A library for working with Bitcoin

A decentralized bitcoin exchange network

Reactive Streams Specification for the JVM

XChange is a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.

Example code from Learning Spark book

[Unmaintained] Open source two-factor authentication for Android

Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.

High Performance data structures and utility methods for Java

Cruise-control is the first of its kind to fully automate the dynamic workload rebalance and self-healing of a Kafka cluster. It provides great value to Kafka users by simplifying the operation of …

Extracts Exif, IPTC, XMP, ICC and other metadata from image, video and audio files

Simple, high-performance event-driven HTTP client+server for Clojure