Design patterns implemented in Java

Free and Open, Distributed, RESTful Search Engine

Everything you need to know to get the job.

All Algorithms implemented in Java

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

The java implementation of Apache Dubbo. An RPC and microservice framework.

Netty project - an event-driven asynchronous network application framework

A browser automation framework and ecosystem.

Jenkins automation server

Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.

GraalVM compiles Java applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

Apache Hadoop

Apache Pulsar - distributed pub-sub messaging system

MIT Deep Learning Book in PDF format (complete and parts) by Ian Goodfellow, Yoshua Bengio and Aaron Courville

Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process …

🚀 Ultimate Android Reference - Your Road to Become a Better Android Developer

Reactive Programming for Android

Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more.

JavaFX Material Design Library

configuration library for JVM languages using HOCON files

Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.

The missing bridge between Java and native C++

H2 is an embeddable RDBMS written in Java.

Jitsi is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, IRC and many other useful features.

Serve, optimize and scale PyTorch models in production

Flexible framework for workflow and decision automation with BPMN and DMN. Integration with Quarkus, Spring, Spring Boot, CDI.

Official GeoServer repository

Unofficial mirror of FernFlower Java decompiler (All pulls should be submitted upstream)

Deep Learning (Python, C, C++, Java, Scala, Go)

An XMPP server licensed under the Open Source Apache License.