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

Open Source Identity and Access Management For Modern Applications and Services

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

Quarkus: Supersonic Subatomic Java.

Vert.x is a tool-kit for building reactive applications on the JVM

Apache ShenYu is a Java native API Gateway for service proxy, protocol conversion and API governance.

Provides examples and code snippets for the JGit Java Git implementation

NLP tools for Turkish.

High performance reactive SQL Client written in Java

🚀 fast JavaScript 4 Eclipse Vert.x

Oracle Coherence Community Edition

A maintained fork of WSDL4J. ⛺

The simplest way to implement a task queue with Java, Vertx and PostgreSQL.

Reliable Keycloak user migration at scale. Features include bounded concurrency, durable retries, and zero data loss.

Abyss Spec Transformer Project https://apiportal.com