René Gielen

Vortrag Agentische KI im Softwarehandwerk - Vibe Hype oder Revolution? Vortrag am 24.02.2026

Agentische KI im Softwarehandwerk - Vibe Hype oder reale Revolution? - Kostenfreies Webinar 24.2.2026 18:00

KI in der Softwareentwicklung - längst mehr als der Copilot Chat in der IDE. Sind Claude Code & Co. dabei, die Tektonik unserer Industrie zu verschieben?

Anmeldung unter www.gfu.net/s6195

📢 Announcement 📢

#Java peers, the 2026 #JavaOne call for papers is now LIVE. Please make your submissions by November 11, 2025 5:00 p.m. PT by visiting the conference website:

➡️ social.ora.cl/6013A7UXF

Junie, the coding agent by JetBrains Delegate your tasks, focus on the results

Today I finally came to play with JetBrains Junie coding agent EAP. I have to say: awesome! www.jetbrains.com/junie/

During yesterday’s @bejug.bsky.social event, I got the idea to create an @intellijidea.com extension that reminds everyone to use mvn verify instead of clean install. Inspired by @andresalmiray.com and @tomcools.be . Here’s a sneak peek:

I didn’t even see VMware there! 😂 (h/t @skpodila.bsky.social)

It is placed very appropriately. One way to win the magic quadrant.

Outlier AI. You are doing it wrong.

Hiring people to post completely nonsenese or copy&pasted issues in reputable open-source repositories - and make maintainers train your AI on it ? not good.

There are 50 such issues in last few days in @airflow repo [1] and counting. More details in [2] […]

How an empty S3 bucket can make your AWS bill explode Imagine you create an empty, private AWS S3 bucket in a region of your preference. What will your AWS bill be the next morning?

Ouch! Watch your S3 buckets... medium.com/@maciej.pocw...

#AdventOfMaven

API, ChatGPT & Sora Facing Issues OpenAI's Status Page - API, ChatGPT & Sora Facing Issues.

Kubernetes API DoS is a thing status.openai.com/incidents/ct...

#Maven #Java

#AdventOfMaven

Screenshot

#JavaFX #LinksOfTheWeek
www.jfx-central.com/links
😍
@johanvos.bsky.social
Bob Vandette
@trixon.se
@xiongchun.bsky.social
Stephen Chin
James Weaver
Steve Hannah
@frankdelporte.be
@polypragmatist.bsky.social
Stuart Marks
@rgielen.bsky.social
@dlemmermann.bsky.social
Jonathan Giles
Cay Horstmann

Desirable Unit Tests A Test Desiderata Perspective

"...difficult-to-write unit tests are the canary in the bad interface coal mine" - loved this statement from @kentbeck.bsky.social

tidyfirst.substack.com/p/desirable-...

There is another use case for

mvn dependency:analyze

It can show you the dependencies you use in your code but have not declared in your pom.xml. This works because you have a transitive dependency on your classpath. Either don't use the dependency or declare it.

#AdventOfMaven

I was surprised to count 8. Not too bad, from an European standpoint.

GitHub - rgielen/springboot-javafx-fxweaver-demo: Stripping Spring Boot + JavaFX to the core Stripping Spring Boot + JavaFX to the core. Contribute to rgielen/springboot-javafx-fxweaver-demo development by creating an account on GitHub.

JavaFX is not dead. Cool and underrated. Looks like it boils down now: github.com/rgielen/spri...

Using Spring Boot with Testcontainers?

We've improved support so that your test setup is more lean. `@AutoConfigureTestDatabase` now detects containers and will automatically use that!

If you need to revert to the old behavior, set `replace=Replace.AUTO_CONFIGURED)` on the annotation.

Given you're on Java 21+ - not really, imo

I created a small demo. JavaFX + Spring Boot redux:
github.com/rgielen/spri...

/cc @johanvos.bsky.social feedback appreciated!

Spring Boot + JavaFX Platform.startup prototype Spring Boot + JavaFX Platform.startup prototype. GitHub Gist: instantly share code, notes, and snippets.

OK, gave it a quick try. Not sure whether the CommandLineRunner impl has to be refinded, but: Works!

gist.github.com/rgielen/bbbe...

javafx-weaver/samples/springboot-sample at master · rgielen/javafx-weaver · GitHub An opinionated view on how to do dependency injection and FXML view handling in JavaFX. - rgielen/javafx-weaver

which is still the pattern I follow for the javafx-weaver examples. That'd bcome muuuuuch more easier then https://github.com/rgielen/javafx-weaver/tree/master/samples/springboot-sample

Nice one! So it's up to the developer to create the primary stage then, right? Or am I missing something?

Welcome back, we kept your seat warm for you 😬

Release 2.0.0-rc-1 · apache/maven-mvnd Major changes Upgrade to Maven 4.0.0-rc-1 by @gnodet in #1189 Bug fixes Fix exception cause not being printed in the log by @gnodet in #1059 Separate message and exception by newline by @gnodet ...

Apache Maven Daemon aka mvnd 2.0.0-rc-1 is release (wraps Maven 4.0.0-rc-1). Go get it while hot!
github.com/apache/maven...

#maven #maven4

ASF Members, let me know who you are!

go.bsky.app/6RDf1ik

Working on my starter pack of Friendly Java Champions, Rockstars, Advocates and just generally good Java devs to follow.☕

This is a drama-free, supportive and inclusive group of professionals.❤️ (They don't call people Nazis or advocate for violence.)

They make Bluesky better.

go.bsky.app/PfVotTb

All this, plus: having made the switch some time ago, scripts are so much better to read when coming back after a while. Bonus points for more convenient writing on dead-keys keyboard layouts imho