René Gielen's Avatar

René Gielen

@rgielen

Software Crafting and Delivery Practitioner & Trainer; ASF Member & Struts PMC Chair; Chances are you find me deep down below with a ship wreck ahead or cycling paved and not so paved roads. https://about.me/rgielen

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04.11.2023
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Latest posts by René Gielen @rgielen

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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

19.02.2026 20:03 👍 0 🔁 0 💬 0 📌 0
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📢 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

23.10.2025 17:27 👍 19 🔁 15 💬 0 📌 2
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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/

15.03.2025 17:04 👍 0 🔁 0 💬 0 📌 0
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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:

27.02.2025 13:00 👍 9 🔁 2 💬 3 📌 0

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

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

30.01.2025 23:12 👍 306 🔁 19 💬 19 📌 1
Original post on fosstodon.org

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] […]

26.01.2025 19:51 👍 20 🔁 17 💬 0 📌 2
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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...

22.01.2025 21:20 👍 0 🔁 0 💬 0 📌 0
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01.01.2025 15:23 👍 2 🔁 2 💬 0 📌 0
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#AdventOfMaven

24.12.2024 10:57 👍 12 🔁 1 💬 0 📌 0
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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...

19.12.2024 17:08 👍 1 🔁 0 💬 0 📌 0
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#Maven #Java

12.12.2024 20:53 👍 25 🔁 7 💬 2 📌 0
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#AdventOfMaven

13.12.2024 07:48 👍 4 🔁 1 💬 0 📌 0
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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

13.12.2024 07:53 👍 8 🔁 5 💬 0 📌 0
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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-...

11.11.2024 16:52 👍 21 🔁 10 💬 0 📌 1
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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.

10.12.2024 14:00 👍 28 🔁 10 💬 5 📌 0
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#AdventOfMaven

06.12.2024 20:30 👍 46 🔁 10 💬 6 📌 0

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

07.12.2024 00:40 👍 1 🔁 0 💬 0 📌 0
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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...

07.12.2024 00:16 👍 2 🔁 0 💬 2 📌 0
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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.

06.12.2024 13:00 👍 35 🔁 12 💬 0 📌 1
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a bald man is sitting in front of a microphone and talking about history and never forgets the name enterprise . ALT: a bald man is sitting in front of a microphone and talking about history and never forgets the name enterprise .
07.12.2024 00:10 👍 0 🔁 0 💬 0 📌 0

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

06.12.2024 14:52 👍 2 🔁 0 💬 1 📌 0

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

/cc @johanvos.bsky.social feedback appreciated!

06.12.2024 13:27 👍 0 🔁 0 💬 1 📌 0
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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...

06.12.2024 12:52 👍 1 🔁 0 💬 0 📌 0
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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

06.12.2024 09:08 👍 1 🔁 0 💬 1 📌 0

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

06.12.2024 08:39 👍 2 🔁 0 💬 0 📌 0

Welcome back, we kept your seat warm for you 😬

03.12.2024 06:37 👍 1 🔁 0 💬 1 📌 0
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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

02.12.2024 18:29 👍 22 🔁 11 💬 0 📌 0

ASF Members, let me know who you are!

go.bsky.app/6RDf1ik

20.11.2024 17:15 👍 9 🔁 6 💬 7 📌 1

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

30.11.2024 18:03 👍 29 🔁 9 💬 12 📌 0

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

26.11.2024 07:11 👍 1 🔁 0 💬 0 📌 0