API differences in Hibernate ORM 5.1 vs 5.3
by Gail Badner
Hi,
There were lots of differences in the compatibility report, so as a first
step, I've excluded packages/classes that I considered SPI, internal, or
"grey area". This reduced the the differences to a more manageable amount.
You can see a summary of the incompatibilities along with suggested
mitigation at [1].
The report is attached to [1], along with a zip with instructions for
running the report.
I believe there are some "false positives" in the report, and I have
documented them in the section, "False Positives?".
Feel free to comment on the article.
Thanks,
Gail
[1]
https://developer.jboss.org/wiki/HibernateORMBinaryCompatibilityBetween51...
4 days, 22 hours
IP banned from forum
by Gunnar Morling
Hi,
Is anyone banning users from the forum? I am getting "A ban has been
issued on your IP address."
I don't think banning by IP is a good strategy as many users will have
dynamic IPs from their hoster's shared pool, so it's a random game to
hit an IP previously banned due to some other user's spam.
Thanks,
--Gunnar
5 days, 4 hours
New CI machine preview
by Sanne Grinovero
You're all welcome to play with http://54.225.162.168/
however please keep these in mind:
- it's not the final machine: don't put too much effort in creating
nice build scripts as we'll reset it to clean state soon. We *might*
be able to store jobs defined so far, but we might choose not to.
- domain name should be coming: ci.hibernate.org ..not sure when, got
no replies so far from.
- authentication: just click on login, it will use OAuth2 to request
your identity via your GitHub account. Permissions to create new jobs,
edit existing jobs, run a build manually depend on your github account
be part of the Hibernate organization (or not, in which case you have
read only status)
At this stage I'd like to get a feeling if the hardware is powerful
enough, and also we need to select which other plugins we want to use,
I'm looking especially to:
- static analysis reports
- pull requests integration
both are relatively undefined, we can of course start simple and
improve later.. just checking this fits basic needs now.
Sanne
2 months, 2 weeks
JDK 21 Release Candidates & JVM Language Summit
by David Delabassee
Greetings!
JDK 21 is now in the Release Candidate Phase so everything is on track for the Java 21 GA release on September 19th! If you haven't done so, please start testing your project(s) using JDK 22 Early-Access builds and let us know the results.
In other news, the JVM Language Summit took place a few days ago in Santa Clara (California). During this unique gathering of Java architects and OpenJDK developers, key updates were shared and discussed, ex. where Valhalla stands today, the new Class-File API, an update on Leyden and Valhalla, Project Panama, the challenges of Virtual Threads, continuation internals, etc. We have started to publish the JVMLS 2023 videos so make sure to keep an eye on this evolving JVMLS playlist [1] to understand where the Java platform is heading to.
## JDK 21 Early-Access Builds
Per the JDK 21 schedule [2], we are now in the Release-Candidate Phase. The overall feature set [3] is frozen, no further JEPs will be targeted to this release.
### JEPs integrated to JDK 21:
- 430: String Templates (Preview)
- 431: Sequenced Collections
- 439: Generational ZGC
- 440: Record Patterns
- 441: Pattern Matching for switch
- 442: Foreign Function & Memory API (3rd Preview)
- 443: Unnamed Patterns and Variables (Preview)
- 444: Virtual Threads
- 445: Unnamed Classes and Instance Main Methods (Preview)
- 446: Scoped Values (Preview)
- 448: Vector API (6th Incubator)
- 449: Deprecate the Windows 32-bit x86 Port for Removal
- 451: Prepare to Disallow the Dynamic Loading of Agents
- 452: Key Encapsulation Mechanism API
- 453: Structured Concurrency (Preview)
The first JDK 21 Release Candidate builds (builds 35) are available [4]. Those builds are provided under the GNU General Public License v2, with the Classpath Exception. The Release Notes [5] and the Javadocs [6] are also available.
[1] https://www.youtube.com/playlist?list=PLX8CzqL3ArzW90jKUCf4H6xCKpStxsOzp
[2] https://openjdk.org/projects/jdk/21/#Schedule
[3] https://openjdk.org/projects/jdk/21/#Features
[4] https://jdk.java.net/21/
[5] https://jdk.java.net/21/release-notes
[6] https://download.java.net/java/early_access/jdk21/docs/api/
## JDK 22 Early-Access Builds
The latest Early-Access builds 11 are available [7], and are provided under the GNU General Public License v2, with the Classpath Exception. The Release Notes are available here [8].
### Changes in recent JDK 22 builds (b8-b11) that may be of interest:
Note that this is only a curated list of changes, make sure to check [9] for additional changes.
- JDK-8314209: Wrong @since tag for RandomGenerator::equiDoubles [Reported by JaCoCo]
- JDK-8312489: Increase Default Value of the System Property jdk.jar.maxSignatureFileSize
- JDK-8312433: HttpClient request fails due to connection being considered …
- JDK-8313307: java/util/Formatter/Padding.java fails on some Locales
- JDK-8312821: Javac accepts char literal as template
- JDK-8313251: Add NativeLibraryLoad event
- JDK-8313809: String template fails with java.lang.StringIndexOutOfBoundsE…
- JDK-8312984: javac may crash on a record pattern with too few components
- JDK-8310033: Clarify return value of Java Time compareTo methods
- JDK-8302017: Allocate BadPaddingException only if it will be thrown
- JDK-8310913: Move ReferencedKeyMap to jdk.internal so it may be shared
- JDK-8313251: Add NativeLibraryLoad event to provide more detail about shared lib/dll loads
- JDK-8311653: Modify -XshowSettings launcher behavior
- JDK-8306441: Two phase segmented heap dump
- JDK-8311981: JVM May Hang When Using Generational ZGC if a VM Handshake Stalls on Memory
- JDK-8308850: Change JVM options with small ranges that get -Wconversion warnings to 32 bits
[7] https://jdk.java.net/22/
[8] https://jdk.java.net/22/release-notes
[9] https://github.com/openjdk/jdk/compare/jdk-22%2B8...jdk-22%2B11
## JavaFX 21 & 22 Early-Access Builds
These are early-access builds of the JavaFX Runtime, built from openjdk/jfx [10]. They allow JavaFX application developers to build and test their applications with JavaFX 21 or 22 on the latest JDK.
The latest builds 29 (2023/8/7) of JavaFX 21 are now available [11]. The early-access builds 5 (2023/8/18) of the JavaFX 22 Runtime which is designed to work with JDK 22 are also available [12]. These early-access builds are provided under the GNU General Public License, version 2, with the Classpath Exception. Please send the feedback on the openjfx-dev mailing list [13].
[10] https://github.com/openjdk/jfx
[11] https://jdk.java.net/javafx21/
[12] https://jdk.java.net/javafx22/
[13] http://mail.openjdk.org/mailman/listinfo/openjfx-dev
## Topics of Interest:
JDK 21: G1/Parallel/Serial GC improvements
https://tschatzl.github.io/2023/08/04/jdk21-g1-parallel-gc-changes.html
To Java 21 and Beyond!
https://inside.java/2023/08/08/to-java21-and-beyond/
Strengthen your Java App's Defenses with Key Encapsulation Mechanism API
https://inside.java/2023/08/03/newscast-54/
JVMLS - Foreign Function & Memory API
https://inside.java/2023/08/21/jvmls-ffm-api/
JVMLS - Java and GPU … are we nearly there yet?
https://inside.java/2023/08/22/java-and-gpu/
Draft JEP: Computed Constants
https://minborgsjavapot.blogspot.com/2023/08/java-new-draft-jep-computed-...
Using Computed Constants to Manage Static State in Leyden
https://cr.openjdk.org/~jrose/leyden/after-computed-constants.html
Project Leyden: Toward Condensers
https://openjdk.org/projects/leyden/notes/03-toward-condensers
New OpenJDK Container mailing list
https://mail.openjdk.org/pipermail/container-discuss/2023-August/000000.html
Introduction: Q-descriptors and v-bytecodes
https://cr.openjdk.org/~jrose/values/larval-values.html
~
Until next time!
--David
2 years, 4 months
Cannot resolve method 'type'
by Peter Penzov
Hello, I want to migrate to Spring Boot version 3.0.9, I get this error:
@Column(name = "USER_TYPE")
@Type(type = "org.hibernate.type.ClassType")
private Class<T> user;
I get `Cannot resolve method 'type'`
Do you know how I can replace this in version Spring Boot version 3.0.9.
2 years, 4 months
