Loom Virtual Threads in the JDK 20

Track: Core Java

Abstract

The Loom project has been under work for many years, and just delivered Virtual Threads as a preview feature in the JDK 19 and JDK 20. We now have a very precise idea of what they are and what you can do with them. Our good old Threads, created more than 25 years ago, will see a new kind of lightweight threads. This presentation shows you that creating a thread is easier and much cheaper, allowing the creation of millions of them in a single JVM. These virtual threads can be block at almost no cost. These new virtual threads bring with them new notions that will be covered in this talk. Loom threads are coming, and they will change the landscape of concurrent programming in Java.

José Paumard

Passionate about programming computers for over 25 years, Jose made his debut in assembler and C, C for SIMD parallel machines before adopting Java as an object-oriented language. PhD in applied maths and computer science, assistant professor at the University Sorbonne Paris Nord for 25 years, Java Champion, JavaOne Rockstar, Jose also has a passion for education. He gives talks in major international Java conferences (JavaOne, Oracle CodeOne, Devoxx in Antwerp, Paris and London, DevNexus, GoTo). He wrote numerous technical articles on Java technologies for Java Magazine, Oracle Technolgy Network among other publication. He writes a blog, Java le soir, French documentary source on Java technologies for thousands of french speaking developers around the world. He is a member of the french Paris Java User Group, has been a co-organizer of the conference Devoxx France for three years, and disorganizer of JChateau, an unconference held in the Chateau of the Loire Valley. He maintains a french YouTube channel with more than 80 hours of Java courses. He is also a Pluralsight author in the Java space.