From Java 17 to 21 and beyond: Loom, Amber and Valhalla

Length: 60 minutes

Room: Room 4

Abstract

The two years realese cadence of LTS versions gives the entire Java ecosystem the opportunity to accelerate. It also brings the new features Java has to offer faster, so that developers can improve applications readability, maintainability as well as development productivity. This presentation covers three of the new features of the JDK: Amber, Loom and Valhalla. Amber is about bringing pattern matching to the Java language. It's currently added bit by bit: records, pattern matching for instanceof, for switch, and record pattern matching. Loom offers a new concurrent programming model. With Loom, you can write your code in a synchronous way, without any callback, and execute it asynchronously, with all the performances benefits you may expect. It is a preview feature of the JDK 19. Valhalla brings a new kind of objects to the language, so that you do not have to choose between performances and abstraction. Valhalla will add user defined primitive types to the Java language as well value types.

Day & time

Wednesday, September 06, 10:20 – 11:20 AM

Intended audience

Any Java developer willing to follow the main projects currently been under development in the OpenJDK.

• José Paumard

  José works as Java Developer Advocate at Oracle. PhD in applied maths and computer science, assistant professor at the University Sorbonne Paris Nord for 25 years, he is a Java Champion Alumni and JavaOne Rockstar. He is a member of the french Paris Java User Group, has been a co-organizer of the conference Devoxx France, and is a disorganizer of JChateau, an unconference held in the Chateau of the Loire Valley. He works on the dev.java documentation and community website, publishes the JEP Café, a monthly video cast on YouTube, and maintains a french YouTube channel with more than 80 hours of Java courses. He is also a Pluralsight author in the Java space.

  

  JosePaumard