Fwd: JDK 18 General Availability, and oracle-actions/setup-java

[Craig Russell <ap...@gmail.com>]

Someone who knows how and what to do could look into this and we can discuss at our regular meeting...

Regards,
Craig

> Begin forwarded message:
> 
> From: David Delabassee <da...@oracle.com>
> Subject: JDK 18 General Availability, and oracle-actions/setup-java
> Date: March 28, 2022 at 3:25:09 AM PDT
> To: builds@apache.org
> Reply-To: builds@apache.org
> Reply-To: david.delabassee@oracle.com
> 
> Greetings!
> 
> JDK 18 has been released (General Availability) on March 22nd as planned, the release cadence is working like clockwork! As a small token of gratitude, some of you have been specifically acknowledged in the "The Arrival of Java 18" announcement [1]. On behalf of the entire team, let me extend our thanks to all of you.
> 
> With JDK 18 released, the focus should now be on making sure your project(s) compile and work on JDK 19. As always, if you face any issue with early-access builds of JDK 19 please let us know. To help you in this task, we have just released a GitHub action to install the OpenJDK Early-Access builds. For more information, please check the heads-up below.
> 
> I'll conclude with a short teaser, i.e. JavaOne is Back! [2] Stay tuned for more details.
> 
> [1] https://inside.java/2022/03/22/the-arrival-of-java18/
> [2] https://www.oracle.com/cloudworld/javaone/
> 
> 
> ## Heads-Up: oracle-actions/setup-java
> 
> To help you test your project(s), we have released a GitHub Action [3] to download and install various JDK builds produced by Oracle. In addition to the latest OpenJDK GA builds (GPL v2 W/CPE) and the Oracle JDK builds (NFTC license), this action can also download and install OpenJDK early-access builds, and early-access builds of OpenJDK projects (ex. Project Loom, Project Valhalla, etc.).
> 
> When doing tests using EA builds, it is key to always use the upstream EA builds from jdk.java.net as issues should be logged against those upstream builds, and ideally against a specific build version. This GitHub action is actively following the OpenJDK EA builds releases. Please make sure to check the announcement [4] for more details, and short FAQ.
> 
> To help you isolate regression between different EA builds, we are working to add support for archived builds. If you have feedback, please either issue the Issue tracker [5] or just send me a mail.
> 
> [3] https://github.com/marketplace/actions/setup-java-development-kits-built-by-oracle
> [4] https://inside.java/2022/03/11/setup-java/
> [5] https://github.com/oracle-actions/setup-java/issues
> 
> 
> ## General Availability of Java 18 / JDK 18
> 
> JDK 18 is now Generally Available [6]. The OpenJDK builds which are provided under the GNU General Public License v2, with the Classpath Exception are available [7], the JDK 18 Release Notes are also available [8].
> 
> [6] https://mail.openjdk.java.net/pipermail/jdk-dev/2022-March/006458.html
> [7] https://jdk.java.net/18/
> [8] https://jdk.java.net/18/release-notes
> 
> Along with hundreds of smaller enhancements and over a thousand bug fixes, JDK 18 includes following JEPs:
> - JEP 400: UTF-8 by Default
> - JEP 408: Simple Web Server
> - JEP 413: Code Snippets in Java API Documentation
> - JEP 416: Reimplement Core Reflection with Method Handles
> - JEP 417: Vector API (Third Incubator)
> - JEP 418: Internet-Address Resolution SPI
> - JEP 419: Foreign Function & Memory API (Second Incubator)
> - JEP 420: Pattern Matching for switch (Second Preview)
> - JEP 421: Deprecate Finalization for Removal
> 
> Thanks to everyone who contributed to JDK 18, whether by designing and implementing features or enhancements, by fixing bugs, or by downloading and testing the early-access builds.
> 
> 
> ## JDK 19 Early-Access builds
> 
> JDK 19 Early-Access builds 15 are now available [9], and are provided under the GNU General Public License v2, with the Classpath Exception. The Release Notes are also available [10].
> 
> [9] https://jdk.java.net/19/
> [10] https://jdk.java.net/19/release-notes
> 
> ### JEPs targeted to JDK 19, so far:
> - JEP 422: Linux/RISC-V Port https://openjdk.java.net/jeps/422
> 
> ### Recent changes that maybe of interest:
> - JDK-8283415: Update java.lang.ref to use sealed classes
> - JDK-8280494: (D)TLS signature schemes
> - JDK-8282081: java.time.DateTimeFormatter: wrong definition of symbol F
> - JDK-8281181: Do not use CPU Shares to compute active processor count
> - JDK-7192189: Support endpoint identification algorithm in RFC 6125
> - JDK-8277474: jarsigner does not check if algorithm parameters are disabled
> - JDK-8280357: If the users home directory is invalid, system property user.home is set to $HOME
> - JDK-8277204: Implement PAC-RET branch protection on Linux/AArch64
> - JDK-8282411: Add useful predicates to ElementKind
> - JDK-8282131: java.time.ZoneId should be a sealed abstract class
> - JDK-8281375: Accelerate bitCount operation for AVX2 and AVX512 target
> 
> 
> ## Topics of Interest:
> 
> - “Java 18 is Here!” - Inside Java Podcast
> https://inside.java/2022/03/22/podcast-023/
> 
> - “The Simple Web Server” - Inside Java Podcast
> https://inside.java/2022/03/04/podcast-022/
> 
> - “Finalization Deprecation” - Inside Java Podcast
> https://inside.java/2022/01/12/podcast-021/
> 
> - All About JDK 18 - Inside Java Newscast
> https://inside.java/2022/03/10/insidejava-newscast-021/
> 
> - JDK 18 - Security Enhancements
> https://seanjmullan.org/blog/2022/03/23/jdk18
> 
> - JDK 18 - Programmer's Guide to Snippets
> https://docs.oracle.com/en/java/javase/18/code-snippet/index.html
> 
> - JDK 18 - G1/Parallel/Serial GC improvements
> https://tschatzl.github.io/2022/03/14/jdk18-g1-parallel-gc-changes.html
> 
> - “Java Language Futures: Spring 2022 Edition” (video)
> https://www.youtube.com/watch?v=m7Ypbw-xVRo
> 
> - Project Panama : `jextract` Standalone Repository
> https://mail.openjdk.java.net/pipermail/panama-dev/2022-March/016632.html
> 
> 
> Again, let us know if you find any issues while testing your project(s) on the latest JDK Early Access builds. Thanks for your support!
> 
> --David
> 
> 

Craig L Russell
clr@apache.org