In 2022, our project made a significant decision: re-write our Netty-based Helidon Web Server to be fully implemented using virtual threads. The result is Helidon 4: the first microservices framework designed from the ground up for virtual threads. …

Inside Java is a resource for Java developers, offering insights, tutorials, and updates on the Java programming language, platform, and ecosystem. With contributions from Java experts and members of the Java community, Inside Java covers a wide range of topics, including language features, performance optimizations, and upcoming releases. Developers can stay informed about the latest developments in the Java ecosystem, learn about new APIs and frameworks, and explore best practices for building robust and scalable Java applications.

Inside Java

The Helidon team rewrote their Netty-based web server to use virtual threads, resulting in Helidon 4, the first microservices framework built from the ground up for virtual threads. The team shares their experience, lessons learned, implementation tips, and discusses upcoming features in Java 24 and beyond. This represents a significant architectural shift toward leveraging Java's virtual threads for building high-performance microservices.

Virtual Threads in the Real World: Fast, Robust Java Microservices with Helidon – Inside.java