OpenJDK 17 part 1 • Simon Ritter • Devoxx Poland 2021

With the release of JDK 17, all OpenJDK distributions will be providing long-term support (LTS) for this version of the Java platform. Many Java users presently moving on JDK 8 or JDK 11 will want to migrate their production environments to JDK 17. This will enable them to take advantage of the many fresh features and enhancements made possible by the six-month release cadence introduced in 2017.

This session will supply details of changes to the Java platform covering JDK 12 to 17. Although many things have been added, any have besides been removed. We'll item these things and explain how they may impact application migration.
We’ll cover all aspects of the JDK: the Java language, core APIs, the JVM and tooling and another JDK-specific features.

Key language features we’ll cover are:
• control expressions (JDK 12)
• Text blocks (JDK 13)
• Records (JDK 14)
• Pattern matching, for instanceof (JDK 14)
• Sealed classes (JDK 15)
• Pattern matching for control (JDK 17)

On the API side we'll look at the following:
• Foreign-Memory Access API (JDK 14)
• Vector API (JDK 16)
• abroad Linker API (JDK 16)

By the end of this session, you’ll be all set to take advantage of the modern Java features!

Lecture took place on Thursday 26th August 2021 at 14:40 in area 3

Simon Ritter is the Deputy CTO of Azul Systems. Simon has been in the IT business since 1984 and holds a Bachelor of discipline degree in Physics from Brunel University in the U.K. Simon joined Sun Microsystems in 1996 and started working with Java technology from JDK 1.0; he has spent time working in both Java improvement and consultancy. Having moved to Oracle as part of the Sun acquisition, he managed the Java Evangelism squad for the core Java platform. Now at Azul, he continues to aid people realize Java as well as Azul’s JVM technologies and products. Simon has twice been awarded Java Rockstar position at JavaOne and is simply a Java Champion. He represents Azul on the Java SE Expert Group, OpenJDK Vulnerability Group and Adoptium Steering Committee.
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