A test framework for black-box testing MicroProfile and Jakarta EE applications

A Jackson-powered implementation of JSR353

A reactive API for Hibernate ORM, supporting non-blocking database drivers and a reactive style of interaction with the database.

High performance reactive SQL Client written in Java

Quarkus: Supersonic Subatomic Java.

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.

Jakarta JSON Binding

Real-time web based multiplayer game running on OpenLiberty

📚 Freely available programming books

Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with…

Bitcoin Core integration/staging tree

Eclipse Yasson project

Open Liberty is a highly composable, fast to start, dynamic application server runtime environment