Project Helidon is a set of Java Libraries for writing microservices. Helidon supports two programming models: Helidon MP: MicroProfile 6.0 Helidon SE: a small, functional style API In either case your application is a Java SE program running on the new Helidon Níma WebServer that has been written from the ground up to use Java 21 Virtual Threads. With Helidon 4 you get the high throughput of a re