🎉 ApproveJ v0.9.3 is out!

📅/🕗 introduces 16 new pre-defined Scrubbers for date/time strings
🐞 fixes broken parsing if a date/time pattern contained a square bracket within an optional part

👉 https://github.com/mkutz/ApproveJ/releases/tag/v0.9.3

#approvaltesting #snapshottesting #java #kotlin #testing #jvm

Vamos con más comunidades #OpenSouthCode25 🙌Gracias a Málaga Jug, grupo que impulsa el conocimiento en tecnologías Java y lenguajes del ecosistema JVM como Kotlin, Groovy o JRuby 🚀

#Java #JVM #Community #OpenSource

Data center emissions are surging. Every millisecond counts. Can native #Java with #Knative tilt the balance? Marius Stein & Vishal Shanbhag explore how new builds bring old stacks into a greener future.

The full story: https://javapro.io/2025/06/11/greener-code-sustainable-java-deployments-with-native-builds-and-knative-serverless-on-kubernetes/

#GraalVM #Cloud #JVM @graalvm

Would YOU patch a global CVE… unpaid… over your vacation? That’s what the #Log4j team did. But the full story goes way deeper — punk roots, #OpenSource fights, near-abandonment & one massive comeback.

Read Christian Grobmeier’s story: https://javapro.io/2025/06/10/the-long-history-of-log4j/

#JVM @theasf

#VirtualThreads: schnell, leicht, revolutionär? #ReactiveStreams: etabliert, robust, aber komplex? Adam Warski beleuchtet im #JAVAPRO Germany Artikel die Stärken & Schwächen. Warum jetzt ein Umdenken nötig ist!

Lese jetzt: https://javapro.io/de/von-reactive-streams-zu-virtual-threads/

#Java21 #ProjectLoom #Java #JVM

What happens when your saga fails halfway? Giselle van Dongen doesn’t panic—she locks in Restate’s built-in compensations & rollback. Distributed transactions, simplified to code you trust. Want in on fault-proof logic? https://javapro.io/2025/05/08/the-simplest-way-to-build-resilient-applications/

#CloudNative #JVM #Serverless

Wednesday Links - Edition 2025-06-11
https://dev.to/0xkkocel/wednesday-links-edition-2025-06-11-1ebh
#java #jvm #springboot #api #openrewrite #graalvm #kotlin

Stop the #Hibernate bottleneck! Markus Kett’s keynote "Java's Ignored Potential" reveals how to transform sluggish #databases into lightning-fast in-memory powerhouses. #JVM speed, simplified dev, massive scalability—your apps deserve it!

🎥 https://youtu.be/qb2eOOFdOr4

#JCON2025 #Java #JCON

Today is the day! Last #czjug meetup before summer. GraalPy: Java❤️Python Stepan Sindelar from @graalvm team will bridge modern #Python and the #JVM ecosystem!

There will be🍕sponsored by #sky and contest for free @jetbrains licences!

https://www.meetup.com/czjug-prague/events/305860917

How did a tiny Java logging lib bring the internet to its knees? How did unpaid devs patch it in the middle of global panic? And what’s next for #Log4j? Christian Grobmeier takes you inside one of #OpenSource’s wildest stories.

Read it now → https://javapro.io/2025/06/10/the-long-history-of-log4j/

#JVM #Java

Thousands of rules, no single source of truth, every fix breaks something else. Sound familiar? Posten Bring’s dev team flipped the script with #Kotlin Multiplatform. Anshika Koul takes you inside a dev rescue mission.

Check it → https://javapro.io/2025/05/01/kotlin-multiplatforms-cross-platform-brilliance-at-norways-nearly-400-year-old-national-postal-service/

#Java #JVM #JavaScript

Over five years now I'm programming on the JVM. Started out with #Java, moved to #Kotlin as my daily driver, dipped my toes into #Scala and once in a while enjoy experimenting with #Clojure. Groovy outside of gradle files, is still a gap to fill.

I had the urge to go behind the language and explore the realms of bytecode, linking and loading and JIT compilation and the helpful people on the RockTheJVM discord recommend me this amazing book: "The well Grounded Java Developer" which goes into this step by step.

It let me appreciate what an outstanding piece of software the JVM really is.

https://www.manning.com/books/the-well-grounded-java-developer-second-edition

#programming #jvm #Java

Fray: A Controlled Concurrency Testing Framework for the JVM

https://github.com/cmu-pasta/fray

Discussions: https://discu.eu/q/https://github.com/cmu-pasta/fray

#jvm

LSM4K 1.0.0-Alpha released

https://fed.brid.gy/r/https://forem.com/martinhaeusler/lsm4k-100-alpha-released-2lhe

Fray: A Controlled Concurrency Testing Framework for the JVM

https://github.com/cmu-pasta/fray

#HackerNews #Fray #Controlled #Concurrency #JVM #Testing #Framework #HackerNews

New Release v2.4 of https://github.com/gradlex-org/jvm-dependency-conflict-resolution

🔧 Fixes:
- #238: The patch DSL now supports dependencies with non-standard variant names (e.g., com.google.guava).
- #243: Resolved clashes between jakarta.xml.ws:jakarta.xml.ws-api and jakarta.jws:jakarta.jws-api for versions ≤ 4.0.

⚠️ Deprecation:
- #251: GuavaComponentRule is now deprecated in favor of the more flexible and general patch DSL.

#Gradle #DependencyManagement #Java #JVM #OpenSource #DevTools #SoftwareEngineering

Introducing Red Hat build of Cryostat 4.0
https://developers.redhat.com/articles/2025/06/05/introducing-red-hat-build-cryostat-40
#Java #jvm #cryostat #jfr #container

Stop the #Hibernate bottleneck! Markus Kett’s keynote "Java's Ignored Potential" reveals how to transform sluggish #databases into lightning-fast in-memory powerhouses. #JVM speed, simplified dev, massive scalability—your apps deserve it!

🎥 https://youtu.be/qb2eOOFdOr4

#JCON2025 #Java #JCON

Scripting on the JVM with JBang

#devoxx #groovy #java #jbang #jvm #kotlin

https://www.youtube.com/watch?v=3QnwTmHGct8

JEP 502 introduces the Stable Values API in #JDK25!

It boosts app startup performance with deferred immutability, enabling thread-safe, at-most-once initialization of complex objects. It boosts efficiency, reduce initialization pitfalls while leveraging #JVM optimizations.

🔍 Learn more: https://bit.ly/3HHM9wH

#Java #JEPs #Performance #InfoQ