Free and Open Source, Distributed, RESTful Search Engine

Termux - a terminal emulator application for Android OS extendible by variety of packages.

A browser automation framework and ecosystem.

Open Source Identity and Access Management For Modern Applications and Services

Apache Kafka - A distributed event streaming platform

Event Driven Orchestration & Scheduling Platform for Mission Critical Applications

Jenkins automation server

Desktop/Android/HTML5/iOS Java game development framework

JDK main-line development https://openjdk.org/projects/jdk

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

QuestDB is a high performance, open-source, time-series database

Quarkus: Supersonic Subatomic Java.

Apache Doris is an easy-to-use, high performance and unified analytics database.

Very spicy additions to the Java programming language.

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

The most widely used, high performance Minecraft server that aims to fix gameplay and mechanics inconsistencies

LangChain4j is an open-source Java library that simplifies the integration of LLMs into Java applications through a unified API, providing access to popular LLMs and vector databases. It makes impl…

Java JWT: JSON Web Token for Java and Android

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 …

Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

Apache Beam is a unified programming model for Batch and Streaming data processing.

✅ The programmer-friendly testing framework for Java and the JVM

jOOQ is the best way to write SQL in Java

Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.

Idiomatic persistence for Java and relational databases

Apache Groovy: A powerful multi-faceted programming language for the JVM platform

Native Operating System and Hardware Information

Apache Maven core

Integration with Netflix OSS components

An application observability facade for the most popular observability tools. Think SLF4J, but for observability.