Hey David,
I hope you got Christian's email below as you were not in the recipient
list.
Anyway, this is just to let you know that we ended up discovering a problem
in OpenJDK 25 and reported it:
It's an odd one because it depends on the order of classes in a JAR or on
the filesystem, so it appeared out of nowhere long after we had started
testing against JDK 25.
Have a nice day,
Yoann Rodière
Hibernate team
On Tue, Sep 30, 2025 at 9:24 AM Christian Beikov <christian.beikov(a)gmail.com>
wrote:
Hey David,
Thank you for the updates. Everything looking good on our end:
Hibernate ORM: Version 7.1 tested against 25+36 / 26 (EA 15). No
problems to report.
Hibernate Validator: Version 9.1 tested against 25+36 / 26 (EA 15). No
problems to report.
Hibernate Search: Version 8.2 tested against 25+36 / 26 (EA 15). No
problems to report.
Hibernate Reactive: Version 4.2 tested against 25+36 / 26 (EA 15). No
problems to report.
Have a nice week,
Christian
Hibernate team
Am 23.09.2025 um 10:18 schrieb David Delabassee via hibernate-dev:
> Welcome to the latest OpenJDK Quality Outreach update.
>
> JDK 25[1] and JavaFX 25[2] were released as planned a few days ago.
Additional Java 25 materials, including the "Road to 25" video series, are
listed in the "Topics of Interest" section at the end of this update. If
you missed it, you can also rewatch the Java 25 launch stream[3].
>
> Thank you to all the projects that contributed to this release by
testing early access builds, providing feedback, or identifying issues.
Your participation helps shape the Java platform!
>
> Let’s now turn our attention to JDK 26[4], which is expected to enter
the Rampdown Phase in just over two months. As of today, three JEPs have
already been targeted for inclusion in JDK 26. If you use JavaFX, please
pay attention to the time-sensitive heads-up below.
>
> [1]
https://blogs.oracle.com/java/post/the-arrival-of-java-25
> [2]
https://inside.java/2025/09/23/javafx-25/
> [3]
https://inside.java/2025/09/17/java25-launch-stream/
> [4]
https://openjdk.org/projects/jdk/26/
>
>
> # Heads-up - JavaFX 26: Temporary switch to macOS Metal Rendering
Pipeline
>
> On macOS, the default JavaFX rendering pipeline has been temporarily
switched to Metal since JavaFX 26 early access build 5. This change will
remain in place until October 8, 2025. The goal is to enable wider testing
of the Metal rendering pipeline.
>
> If you need to revert to the previous macOS ES2 pipeline, you can do so
by adding the `-Dprism.order=es2` flag to your Java command.
>
> The latest JavaFX 26 EA builds are now available for download[5] and
testing. You can share your feedback on the openjfx-dev[6] list
(registration required), through JBS[7] or bugreport.java.com[8].
>
> [5]
https://jdk.java.net/javafx26/
> [6]
https://mail.openjdk.org/mailman/listinfo/openjfx-dev
> [7]
https://bugs.openjdk.org/
> [8]
https://bugreport.java.com
>
>
> # Heads-up - New Leyden Early-Access Builds
>
> The purpose of Leyden early eccess builds is to prototype improvements
in startup time, time to peak performance, and footprint of Java programs,
with the hope that some of these enhancements can eventually be
incorporated into future JDK releases. The Java community is invited to
test these prototypes and provide feedback to the Project Leyden team.
>
> The latest Leyden "premain" prototype[9] introduces several experimental
Ahead-of-Time (AOT) optimizations not yet part of the JDK mainline. These
include AOT code compilation for frequently used methods, AOT generation of
dynamic proxies and reflection data to improve start-up time, and a cache
for failed class lookups to speed up repeated attempts. All these
experimental features are, in the Leyden EA2 builds, enabled by default
when creating an AOT cache and can be disabled via specific flags.
>
> More details on how to use these features can be found in the EA2
Release Notes[10]. Feedback should be sent to the leyden-dev[11] mailing
list (registration required).
>
> [9]
https://jdk.java.net/leyden/
> [10]
https://github.com/openjdk/leyden/blob/leyden-ea2-release-notes/README.md
> [11]
https://mail.openjdk.org/mailman/listinfo/leyden-dev
>
>
> # JDK 26 Early-Access Builds
>
> The JDK 26 early access builds 16 are available[12], and are provided
under the GNU General Public License v2, with the Classpath Exception. You
can review the Release Notes here[13].
>
> ## JEPs targeted to JDK 26, so far:
> - JEP 504: Remove the Applet API
> - JEP 517: HTTP/3 for the HTTP Client API
> - JEP 522: G1 GC: Improve Throughput by Reducing Synchronization
>
> ## Changes in recent JDK 26 EA builds that may be of interest:
> - JDK-8244336: Restrict algorithms at JCE layer
> - JDK-8366911: (fs) Remove support for normalizing file names to Unicode
normalized form D (macOS)
> - JDK-8367112: HttpClient does not support Named Groups set on
SSLParameters
> - JDK-8367031: [backout] Change java.time month/day field types to 'byte'
> - JDK-8366434: THP not working properly with G1 after JDK-8345655
> - JDK-8365086: CookieStore.getURIs() and get(URI) should return an
immutable List
> - JDK-8364993: JFR: Disable jdk.ModuleExport in default.jfc
> - JDK-8364556: JFR: Disable SymbolTableStatistics and
StringTableStatistics in default.jfc
> - JDK-8359443: Make jcmd command available in the headless JDK RPM
> - JDK-8362304: Fix JDWP spec w.r.t. OPAQUE_FRAME and INVALID_SLOT errors
> - JDK-8277585: Remove the terminally deprecated finalize() method from
javax.imageio.stream APIs
> - JDK-8362448: Make use of the Double.toString(double) algorithm in
java.text.DecimalFormat
> - JDK-8309400: JDI spec needs to clarify when OpaqueFrameException and
NativeMethodException are thrown
> - JDK-8363972: Lenient parsing of minus sign pattern in
DecimalFormat/CompactNumberFormat
> - JDK-8329829: HttpClient: Add a BodyPublishers.ofFileChannel method
> - JDK-8364227: MBeanServer registerMBean throws NPE
> - JDK-8361614: Missing sub-int value validation in the Class-File API
> - JDK-8361635: Missing List length validation in the Class-File API
> - JDK-8364751: ConstantBootstraps.explicitCast contradictory
specification for null-to-primitive
> - JDK-8361613: System.console() should only be available for interactive
terminal
> - JDK-8365676: javac incorrectly allows calling interface static method
via type variable
>
> Note: A more exhaustive list of changes can be found here[14].
>
> [12]
https://jdk.java.net/26/
> [13]
https://jdk.java.net/26/release-notes
> [14]
https://github.com/openjdk/jdk/compare/jdk-26+10...jdk-26+16
>
>
> # Topics of Interest
>
> - Java 25 Launch Stream
>
https://inside.java/2025/09/17/java25-launch-stream/
>
> - The Arrival of Java 25
>
https://blogs.oracle.com/java/post/the-arrival-of-java-25
>
> - JDK 25: G1/Parallel/Serial GC changes
>
https://tschatzl.github.io/2025/08/12/jdk25-g1-serial-parallel-gc-changes...
>
> - JavaFX 25 Highlights
>
https://inside.java/2025/09/23/javafx-25/
>
> - Road To 25: All API Additions From Java 21 to 25
>
https://inside.java/2025/09/09/roadto25-api/
>
> - Road To 25: How to Handle Security Changes in Java 25
>
https://inside.java/2025/09/07/roadto25-security/
>
> - Road To 25: Java 21 ⮕ 25 - Performance and Runtime Enhancements
>
https://inside.java/2025/09/05/roadto25-performance/
>
> - Road To 25: All New Java Language Features Since Java 21
>
https://inside.java/2025/08/31/roadto25-java-language/
>
> - Road To 25: Ahead-of-Time Computation
>
https://inside.java/2025/08/28/roadto25-aot/
>
> - Road To 25: How to Upgrade to Java 25
>
https://inside.java/2025/08/24/roadto25-upgrade/
>
> - JVMLS: Growing the Java Language
>
https://inside.java/2025/08/21/jvmls-growing-java-language/
>
> - JVMLS: Auto-Vectorization in HotSpot
>
https://inside.java/2025/08/16/jvmls-hotspot-auto-vectorization/
>
> - JVMLS: Paths to Support Additional Numeric Types on the Java Platform
>
https://inside.java/2025/09/21/jvmls-java-additional-numeric-types/
>
> - Java Architects Answer Your Questions
>
https://inside.java/2025/08/14/newscast-97/
>
> - GC-Agnostic Load Barriers for Ahead-of-Time Compilation
>
https://inside.java/2025/08/27/thesis-gc-agnostic-load-barriers/
>
> ~
>
>
> This concludes the update. Please don’t hesitate to reach out if you
encounter any issues while testing your projects with the latest JDK 26
early access builds.
>
> P.S.: If you no longer wish to receive these Quality Outreach updates,
please let me know.
>
> --David
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