3:06 a.m.
Hey David,
Thank you for the updates. Everything looking good on our end:
Hibernate ORM: Version 6.6 and 7.0 tested against JDK 23.0.2 / 24.0.0+36
/ 25 (EA 17). No problems to report.
Hibernate Validator: Version 9.0 tested against JDK 23.0.2 / 24.0.0+36 /
25 (EA 17). No problems to report.
Hibernate Search: Version 8.0 tested against JDK 23.0.2 / 24.0.0+36 / 25
(EA 17). No problems to report.
Hibernate Reactive: Version 2.4 tested against JDK 23.0.2 / 24.0.0+36 /
25 (EA 17). No problems to report.
Have a nice weekend,
Christian
Hibernate team
Am 07.04.2025 um 18:31 schrieb David Delabassee via hibernate-dev:
> Greetings and welcome to the latest OpenJDK Quality Outreach update!
>
> JDK 24 was officially released (General Availability) on March 18th during JavaOne.
You can rewatch the Java 24 launch and the J1 keynote here [1]. Be sure to also check out
the Quality Outreach section here [2]. JavaOne was amazing, and if you couldn't
attend, make sure to watch the JavaOne 2025 playlist [3] regularly as sessions are
gradually being added.
>
> With the release of JDK 24, the focus now moves to JDK 25 testing. On that note, be
sure to check out the heads-up below, with more to follow. And as always, if you
experience any issues with your project running on a JDK 25 early-access builds, please
don't hesitate to reach out.
>
> [1] https://www.youtube.com/watch?v=mk_2MIWxLI0&t=12s
> [2] https://www.youtube.com/live/GwR7Gvi80Xo?si=gxdqAhVbnNV0JZGt&t=2795
> [3] https://www.youtube.com/playlist?list=PLX8CzqL3ArzVV1xRJkRbcM2tOgVwytJAi
>
>
> # Heads-up - JDK 25: New Null Checks in Inner Class Constructors
>
> The Java Language Specification prescribes that various use sites of inner class
constructors should include null checks of the immediately enclosing instance and from
then on assumes that the reference is non-null. However, it does not mandate such checks
of the incoming instance at the declaration site of these constructors and so core
reflection, method handles, and direct bytecode invocation can pass null as enclosing
instance, which can lead to NullPointerExceptions down the road.
>
> Since a null enclosing instance is outside of the JLS and the future evolution of
inner classes may lead to unexpected NPEs, Java 25 will start ensuring that references to
the immediately enclosing instance are always non-null.
>
> Starting with JDK 25, when javac is targeting release 25 or higher, it will emit null
checks for the enclosing instances in inner class constructors.
>
> This behavioral change will lead to new NPEs in code that uses core reflection,
method handles, or direct bytecode invocation to pass null as enclosing instance. Such
code is rare and usually found in libraries or frameworks (as opposed to in applications).
It should be changed to no longer pass a null reference.
>
> In case these additional checks lead to issues, their emission can be prevented with
a flag: `-XDnullCheckOuterThis=(true|false)`. This should be seen as a temporary
workaround and no guarantees are made for how long this flag will be available.
>
> For more details, check JDK-8351274 [4].
>
> [4] https://bugs.openjdk.org/browse/JDK-8351274
>
>
> # JDK 25
>
> The JDK 25 early-access builds 17 are available [5] and are provided under the GNU
General Public License v2, with the Classpath Exception. The Release Notes are available
here [6].
>
> The following JEPs have been targeted to JDK 25, so far:
> - JEP 502: Stable Values (Preview)
> - JEP 503: Remove the 32-bit x86 Port
>
> ## Changes in recent JDK 25 builds that may be of interest:
> - JDK-8353118: Deprecate the use of `java.locale.useOldISOCodes` system property
> - JDK-8351435: Change the default Console implementation back to the built-in one in
`java.base` module
> - JDK-8350459: MontgomeryIntegerPolynomialP256 multiply intrinsic with AVX2 on
x86_64
> - JDK-8349583: Add mechanism to disable signature schemes based on their TLS scope
> - JDK-8338675: javac shouldn't silently change .jar files on the classpath
> - JDK-8319447: Improve performance of delayed task handling
> - JDK-8341775: Duplicate manifest files are removed by jarsigner after signing
> - JDK-8303770: Remove Baltimore root certificate expiring in May 2025
> - JDK-8346948: Update CLDR to Version 47.0
> - JDK-8348829: Remove ObjectMonitor perf counters
> - JDK-8164714: Constructor.newInstance creates instance of inner class with null
outer class
> - JDK-8352716: (tz) Update Timezone Data to 2025b
> - JDK-8347946: Add API note that caller should validate/trust signers to the
getCertificates and getCodeSigners methods of JarEntry and JarURLConnection
> - JDK-8345213: JVM Prefers /etc/timezone Over /etc/localtime on Debian 12
> - JDK-8350646: Calendar.Builder.build() Throws ArrayIndexOutOfBoundsException
> - JDK-8347433: Deprecate XML interchange in
java.management/javax/management/modelmbean/DescriptorSupport for removal
> - JDK-8328119: Support HKDF in SunPKCS11 (Preview)
> - JDK-8327378: XMLStreamReader throws EOFException instead of XMLStreamException
> - JDK-8024695: new File("").exists() returns false whereas it is the
current working directory
> - JDK-8351224: Deprecate com.sun.tools.attach.AttachPermission for removal
> - JDK-8351310: Deprecate com.sun.jdi.JDIPermission for removal
> - JDK-8348561: Add aarch64 intrinsics for ML-DSA
> - JDK-8350464: The flags to set the native priority for the VMThread and Java threads
need a broader range
> - JDK-8349860: Make Class.isArray(), Class.isInterface() and Class.isPrimitive()
non-native
> - JDK-8351266: JFR: -XX:StartFlightRecording:report-on-exit
> - JDK-8350638: Make keyboard navigation more usable in API docs
> - JDK-8347335: ZGC: Use limitless mark stack memory
> - JDK-8348596: Update FreeType to 2.13.3
>
> Note: A more exhaustive list of changes can be found here [7].
>
> [5] https://jdk.java.net/25/
> [6] https://jdk.java.net/25/release-notes
> [7] https://github.com/openjdk/jdk/compare/jdk-25+10...jdk-25+17
>
>
> # JavaFX 25 Early-Access Builds
>
> These are early access builds of the JavaFX 25 Runtime built from openjdk/jfx [8].
These builds enable JavaFX application developers to build and test their applications
with JavaFX 25 on JDK 25. Although these builds are designed to work with JDK 25-EA
builds, they are also known to work with JDK 22 and later versions.
>
> The latest early access builds of JavaFX 25 Builds 11 (2025/4/4) are now available
[9], under the GNU General Public License, version 2, with the Classpath Exception. JavaFX
25 API Javadocs [10] are available too.
>
> [8] https://github.com/openjdk/jfx
> [9] https://jdk.java.net/javafx25/
> [10]
https://download.java.net/java/early_access/javafx25/docs/api/overview-su...
>
>
> # Topics of Interest
>
> - The Arrival of Java 24
> https://blogs.oracle.com/java/post/the-arrival-of-java-24
>
> - Performance Improvements in JDK 24
> https://inside.java/2025/03/19/performance-improvements-in-jdk24/
>
> - Java 24 - Better Language, Better APIs, Better Runtime
> https://inside.java/2025/03/01/jfokus-better-jdk24/
>
> - JDK 24 Release Notes Overview - Security Update
> https://inside.java/2025/04/05/java-24-security-notes/
>
> - JDK 24 Release Notes Review for Developers
> https://inside.java/2025/03/13/newscast-87/
>
> - JDK 24 Release Notes Overview for Operations
> https://inside.java/2025/03/29/java-24-for-ops/
>
> - JDK 24 G1/Parallel/Serial GC Changes
> https://tschatzl.github.io/2025/04/01/jdk24-g1-serial-parallel-gc-changes...
>
> - Scoped Values in Java 24
> https://inside.java/2025/02/27/newscast-86/
>
> - Stable Values in Java 25
> https://inside.java/2025/03/27/newscast-88/
>
> - New Write Barriers for G1
> http://tschatzl.github.io/2025/02/21/new-write-barriers.html
>
> - SuperWord (Auto-Vectorization) - Scheduling
> https://eme64.github.io/blog/2023/05/16/SuperWord-Scheduling.html
>
> ~
>
> That's it for this time. Feel free to reach out if you encounter any issues while
testing your project(s) with the latest JDK early-access builds.
>
> --David
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