GraalVM JDK19 Builds

[fniephaus]

TL;DR

To allow users to take advantage of the latest JDK18 and JDK19 features such as Virtual Threads, the Simple Web Server, Structured Concurrency, and more, we plan to provide JDK19-based GraalVM builds.

Goals

As with previous JDK releases, we plan to ship preview builds of GraalVM JDK19. These builds will include the Graal compiler, Native Image, and all GraalVM languages and tools, except Espresso (Java on Truffle). For context: The official JDK 19 GA is scheduled for 2022/09/20.

Non-Goals

This is only about making JDK19 builds of GraalVM available as a preview. Official support will follow in a future release.

Related PRs

• [GR-39563] Support JDK19 virtual threads (Project Loom). #4802
• [GR-40737] [GR-36296] Add Sulong tests for JDK19. #4891
• [GR-40332] Deploy JDK19-based GraalVM images. #4934
• [GR-40332] [GR-40930] [GR-40983] Fixes for JDK19 artefacts. #4952

[fniephaus]

The first GraalVM JDK19 dev builds are now available at https://github.com/graalvm/graalvm-ce-dev-builds/releases/latest.

[fniephaus]

JDK19 builds have shipped with the 22.3 release. 🎉

[GrapeBaBa]

@fniephaus I used 22.3.1 jdk19, but virtual thread and structured concurrency not works, it is no exception throwed but the process will hang when executing virtual thread fork.