Hello Rory,
Everything looks fine for Hibernate projects with JDK17 EA21:
Hibernate ORM: Versions 5.4, 5.5 tested against JDK 16 GA and JDK 17 EA21.
No problems to report.
Hibernate Validator: Versions 6.1, 6.2, 7.0 tested against JDK 16 GA and
JDK 17 EA21. No problems to report.
Hibernate Search: Versions 5.11, 6.0 tested against JDK 16 GA and JDK 17
EA21. No problems to report.
Hibernate Reactive: Version 1.0 tested against JDK 16 and JDK 17 EA21. No
problems to report.
Regards,
Yoann Rodière
Hibernate Team
yoann(a)hibernate.org
On Mon, 10 May 2021 at 10:46, Rory O'Donnell <rory.odonnell(a)oracle.com>
wrote:
 Hi Sanne & Yoann, **
 *OpenJDK 17 Early Access build 21 is now available at
 **https://jdk.java.net/17* <
https://jdk.java.net/17>
   * These early-access , open-source builds are provided under the
       o GNU General Public License, version 2, with the Classpath
         Exception <
https://openjdk.java.net/legal/gplv2+ce.html>
   * Schedule
       o 2021/06/10         Rampdown Phase One
       o 2021/07/15         Rampdown Phase Two
       o 2021/08/05         Initial Release Candidate
       o 2021/08/19         Final Release Candidate
       o 2021/09/14         General Availability
   * JEPs targeted to JDK 17, so far:
       o JEP 356: Enhanced Pseudo-Random Number Generators
         <
https://openjdk.java.net/jeps/356>
       o JEP 382: New macOS Rendering Pipeline
         <
https://openjdk.java.net/jeps/382>
       o JEP 391: macOS/AArch64 Port <
https://openjdk.java.net/jeps/391>
       o JEP 398: Deprecate the Applet API for Removal
         <
https://openjdk.java.net/jeps/398>
       o JEP 410: Remove the Experimental AOT and JIT Compiler
         <
https://openjdk.java.net/jeps/410>
   * Release Notes are available at 
https://jdk.java.net/17/release-notes
     <
https://jdk.java.net/17/release-notes>
   * Changes in recent builds that maybe of interest:
       o Build 21:
           + JDK-8196415: JARs signed with SHA-1 algorithms are
             restricted by default.
           + JDK-8265989: System property for the native character
             encoding name.
           + JDK-8265137: java.util.Random suddenly has new public
             methods nowhere documented.
               # [*Reported by Apache Lucene]*
       o Build 20
           + JDK-8037397: RegEx pattern matching loses character class
             after intersection (&&) operator.
           + JDK-8264208: A new public method that returns the `Charset`
             used in the `Console.
       o Build 19
           + JDK-8228988: AnnotationParser throws NullPointerException on
             incompatible member type.
               # *[Reported by ByteBuddy]*
           + JDK-8258794: Support for CLDR version 39.
           + JDK-8262108: SimpleDateFormat formatting broken for sq_MK
             Locale.
               # *[**Reported by ApacheCommons]*
       o Build 18
           + JDK-8260693: Provide the support for specifying a signer in
             keytool -genkeypair.
           + JDK-8263763: Synthetic constructor parameters of enum are
             not considered for annotation indices.
               # *[Reported by ByteBuddy]*
 *Topics of interest from 'Insider Java':*
   * Security and Sandboxing Post SecurityManager : Link
     <
 
https://inside.java/2021/04/23/security-and-sandboxing-post-securitymanager/
 >
   * Foreign Memory Access and NIO channels - Going Further : Link
     <
https://inside.java/2021/04/21/fma-and-nio-channels/>
 *Project Loom Early-Access Build: **Build 17-loom+6-225*
 <
https://jdk.java.net/loom/>*(2021/4/1)*
   * These early-access builds are provided under the GNU General Public
     License, version 2, with the Classpath Exception
     <
https://openjdk.java.net/legal/gplv2+ce.html>.
   * These builds are produced for the purpose of gathering feedback. Use
     for any other purpose is at your own risk.
   * Please send feedback via e-mail to loom-dev(a)openjdk.java.net
     <mailto:loom-dev@openjdk.java.net>. To send e-mail to this address
     you must first subscribe to the mailing list
     <
https://mail.openjdk.java.net/mailman/listinfo/loom-dev>.**
 *April 2021 Critical Patch Update Released:*
   * As part of the April 2021 CPU we released JDK 16.0.1, JDK 11.0.11
     LTS, JDK 8u291 and JDK 7u301 as well as OpenJDK 16.0.1 (publicly
     available).
 Rgds,Rory
 --
 Rgds, Rory O'Donnell
 Quality Engineering Manager
 Oracle EMEA, Dublin, Ireland
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