[hibernate-dev] Re: [External] : Re: JDK 18 Rampdown Phase 2 & JDK 19 Early-Access Builds

Salut Yoann,

As always, thanks for the feedback!

There has been no ASM release since 
https://gitlab.ow2.org/asm/asm/-/commit/33a3c0e1852323eb024860ad05269403069afa50, 
that could explain the problem you're facing with Gradle and EA19.

Thanks,

--David


On 02/02/2022 12:20, Yoann Rodiere wrote:
> Hello David,
>
> All is well for Hibernate projects on JDK 18.
>
> I'm having trouble running the Gradle builds on JDK19, though: even 
> running Gradle itself on JDK11, it seems Gradle is unable to use JDK19 
> as a toolchain. I'm still investigating and will report where 
> appropriate (it's probably a Gradle bug).
>
> Summary for the wiki:
>
> Hibernate ORM: Versions 5.6 and 6.0 tested against JDK 18 EA33. No 
> problems to report.
>
> Hibernate Validator: Version 7.0 tested against JDK 18 EA33 and JDK 19 
> EA7. No problems to report.
>
> Hibernate Search: Version 6.1 tested against JDK 18 EA33 and JDK 19 
> EA7. No problems to report.
>
> Hibernate Reactive: Version 1.1 tested against JDK 18 EA33. No 
> problems to report.
>
>
>
> Yoann Rodière
> Hibernate Team
> [email protected]
>
>
> On Mon, 31 Jan 2022 at 12:58, David Delabassee 
> <[email protected]> wrote:
>
>     Greetings!
>
>     First off, on behalf of Oracle’s Java Team, I’d like to wish you a
>     happy
>     and prosperous new year!
>
>     In 2022, two Java releases will be made available:
>     - JDK 18 (March 2022)
>     - JDK 19 (September 2022)
>
>     JDK 18[1] has entered Rampdown Phase Two (RDP2)[2]. Given that and
>     to be
>     better prepared for the future, it makes sense to begin testing your
>     project(s) using early access (EA) builds of JDK 19[3]. Your feedback
>     allows us to evaluate and address issues you find while testing EA
>     builds.
>
>     This time, we have two heads-up to share:
>
>     ## Heads-Up: JDK 18 - JEP 421 Deprecate Finalization for Removal
>
>     Finalization is an outdated and brittle resource cleaning mechanism
>     present in the platform since, well, forever. Its use has been
>     discouraged for quite some time in favor of better alternatives
>     (i.e.,
>     'try with resources' and Cleaners). JEP 421 is another step
>     towards the
>     removal of finalizers as it offers tools to investigate if a
>     codebase is
>     still using finalization. To learn more, you should read JEP
>     421[4]. You
>     should also listen to the latest episode of the Inside Java
>     Podcast[5]
>     dedicated to this topic. We encourage you to check if your project is
>     still using finalizers. If so, you should start to think about
>     removing
>     them and rely instead on either 'try with resources' or Cleaners.
>
>     ## Heads-Up: JVM does not flag constant class entries ending in '/'
>
>     Prior to JDK 19, the JVM is loading classes (1) whose class file
>     major
>     version is <49, i.e., before JDK 1.5, and (2) the class's name
>     ends with
>     a '/'. This violates section 4.2.1 of the JVM specification [6]
>     and is
>     addressed in JDK 19. In JDK 19, the JVM is throwing, for such
>     classes, a
>     ClassFormatError exception as it already does with newer classes (JDK
>     1.5+). Given that this issue affects only pre-JDK 1.5 classes, we
>     expect
>     the compatibility risk to be very low.
>
>     For more details, see JDK-8278448[7].
>
>     [1] https://jdk.java.net/18/
>     <https://urldefense.com/v3/__https://jdk.java.net/18/__;!!ACWV5N9M2RV99hQ!d9v7ZDgoXgRTA6rmUmI-zmmZ25r7qapNxj75iRC_6Y7dJqde5LsMZGXSYDxQRCRWFo2s$>
>     [2]
>     https://mail.openjdk.java.net/pipermail/jdk-dev/2022-January/006361.html
>     [3] https://jdk.java.net/19/
>     <https://urldefense.com/v3/__https://jdk.java.net/19/__;!!ACWV5N9M2RV99hQ!d9v7ZDgoXgRTA6rmUmI-zmmZ25r7qapNxj75iRC_6Y7dJqde5LsMZGXSYDxQRHP_IMbv$>
>     [4] https://openjdk.java.net/jeps/421
>     [5] https://inside.java/podcast/21
>     <https://urldefense.com/v3/__https://inside.java/podcast/21__;!!ACWV5N9M2RV99hQ!d9v7ZDgoXgRTA6rmUmI-zmmZ25r7qapNxj75iRC_6Y7dJqde5LsMZGXSYDxQRMnPX2XI$>
>     [6]
>     https://docs.oracle.com/javase/specs/jvms/se17/html/jvms-4.html#jvms-4.2.1
>     [7] https://bugs.openjdk.java.net/browse/JDK-8278448
>
>
>     ## JDK 18
>
>     JDK 18 is now in RDP2 (Rampdown Phase Two) with its feature set
>     frozen a
>     few weeks back when it entered RDP1.
>
>     ### JEPs integrated to JDK 18:
>
>     - JEP 400: UTF-8 by Default
>     - JEP 408: Simple Web Server
>     - JEP 413: Code Snippets in Java API Documentation
>     - JEP 416: Reimplement Core Reflection with Method Handles
>     - JEP 417: Vector API (Third Incubator)
>     - JEP 418: Internet-Address Resolution SPI
>     - JEP 419: Foreign Function & Memory API (Second Incubator)
>     - JEP 420: Pattern Matching for switch (Second Preview)
>     - JEP 421: Deprecate Finalization for Removal
>
>     JDK 18 Early-Access builds 33 are now available[8], and are provided
>     under the GNU General Public License v2, with the Classpath
>     Exception.
>     Also available are the Release Notes[9].
>
>     [8] https://jdk.java.net/18/
>     <https://urldefense.com/v3/__https://jdk.java.net/18/__;!!ACWV5N9M2RV99hQ!d9v7ZDgoXgRTA6rmUmI-zmmZ25r7qapNxj75iRC_6Y7dJqde5LsMZGXSYDxQRCRWFo2s$>
>     [9] https://jdk.java.net/18/release-notes
>     <https://urldefense.com/v3/__https://jdk.java.net/18/release-notes__;!!ACWV5N9M2RV99hQ!d9v7ZDgoXgRTA6rmUmI-zmmZ25r7qapNxj75iRC_6Y7dJqde5LsMZGXSYDxQRPPciZ3T$>
>
>     ### Changes in JDK 18 since Rampdown Phase One that are of interest:
>
>     - JDK-8278373: Correcting References to Overloaded Methods in Javadoc
>     Documentation
>     - JDK-8279065: Deserialization filter and filter factory property
>     error
>     reporting under specified
>     - JDK-8255409: SunPKCS11 Provider Now Supports Some PKCS#11 v3.0 APIs
>     - JDK-8275610: C2: Object field load floats above its null check
>     resulting in a segfault [Reported by Apache POI]
>
>
>     ## JDK 19
>
>     JDK 19 Early-Access builds 7 are now available[10], and are provided
>     under the GNU General Public License v2, with the Classpath
>     Exception.
>     Also available are the Release Notes[11].
>
>     [10] https://jdk.java.net/19/
>     <https://urldefense.com/v3/__https://jdk.java.net/19/__;!!ACWV5N9M2RV99hQ!d9v7ZDgoXgRTA6rmUmI-zmmZ25r7qapNxj75iRC_6Y7dJqde5LsMZGXSYDxQRHP_IMbv$>
>     [11] https://jdk.java.net/19/release-notes
>     <https://urldefense.com/v3/__https://jdk.java.net/19/release-notes__;!!ACWV5N9M2RV99hQ!d9v7ZDgoXgRTA6rmUmI-zmmZ25r7qapNxj75iRC_6Y7dJqde5LsMZGXSYDxQRHlxp1MU$>
>
>     ### Changes in recent JDK 19 EA builds that maybe of interest:
>
>     - JDK-8279258: Auto-vectorization enhancement for two-dimensional
>     array
>     operations
>     - JDK-8273914: Indy string concat changes order of operations
>     - JDK-8268081: Upgrade Unicode Data Files to 14.0.0
>     - JDK-8278087: Deserialization filter and filter factory property
>     error
>     reporting under specified
>     - JDK-8276766: Enable jar and jmod to produce deterministic
>     timestamped
>     content
>     - JDK-8274679: Remove unnecessary conversion to String in security
>     code
>     in java.base
>     - JDK-8279833: Loop optimization issue in String.encodeUTF8_UTF16
>     - JDK-8279064: New options for ktab to provide non-default salt
>     - JDK-8280055: JFR: Improve ObjectContext implementation
>     - JDK-8268831: Improve javadoc tool handling of streams
>
>
>     ## Topics of Interest:
>
>     - "State of Valhalla" update
>     https://mail.openjdk.java.net/pipermail/valhalla-spec-experts/2021-December/001747.html
>
>
>
>     - Java's Plans for 2022 - Inside Java Newscast
>     https://inside.java/2022/01/13/insidejava-newscast-018/
>     <https://urldefense.com/v3/__https://inside.java/2022/01/13/insidejava-newscast-018/__;!!ACWV5N9M2RV99hQ!d9v7ZDgoXgRTA6rmUmI-zmmZ25r7qapNxj75iRC_6Y7dJqde5LsMZGXSYDxQRCswm9yQ$>
>
>     - New Loom Early Access builds based on JDK 19 EAb2
>     https://mail.openjdk.java.net/pipermail/loom-dev/2021-December/003394.html
>
>     - New Panama Foreign Early-Access builds (including jextract) jdk 18
>     https://mail.openjdk.java.net/pipermail/panama-dev/2022-January/016131.html
>
>     - January 2022 Critical Patch Update Released
>     As part of the Jan 2022 Critical Patch Update we released JDK 17.0.2
>     LTS, JDK 11.0.14 LTS, JDK 8u321, and JDK 7u331 as well as OpenJDK
>     17.0.2
>     (publicly available).
>     https://www.oracle.com/security-alerts/cpujan2022.html
>
>
>     In closing, I'd like to thank you again for being a welcomed part
>     of the
>     Quality Outreach program! We look forward to your continued
>     participation in 2022. And as always, if you find an issue, please
>     let
>     us know through the usual channels.
>
>     Regards,
>
>     --David
>
>     _______________________________________________
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