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Posts by Hubert Klein Ikkink

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Java 26 in IntelliJ IDEA | The IntelliJ IDEA Blog Java 26 was released on March 17, 2026. At JetBrains, we are committed to supporting the latest technologies in IntelliJ IDEA and adding useful enhancements for both stable and preview features. In…

Java Applets: 1995–2026 👀
The Applet API has officially been removed in #Java 26.
This marks the end of an era for one of the earliest ways to bring Java to the web.
Let’s see what else happened in Java 26 👇
jb.gg/avyjks

5 days ago 7 2 0 0
Piotr Przybył and Marit van Dijk smiling at the photographer. Both are wearing lab coats on top of their Java Champion polos.

Piotr Przybył and Marit van Dijk smiling at the photographer. Both are wearing lab coats on top of their Java Champion polos.

Marit van Dijk and Brian Vermeer in the hallway track.

Marit van Dijk and Brian Vermeer in the hallway track.

Ko Turk and Marit van Dijk "back stage" during the opening keynotes on day 2.

Ko Turk and Marit van Dijk "back stage" during the opening keynotes on day 2.

Frank Delporte interviewing Marit van Dijk for the Foojay podcast.

Frank Delporte interviewing Marit van Dijk for the Foojay podcast.

Had an absolute blast at @amsterdam.voxxeddays.com last week:
* speaking with @piotrprz.bsky.social
* opening both days
* being interviewed for @foojay.io podcast
* meeting people in the hallway track

5 days ago 10 3 0 0

Nushell Niceties: Transform Values Into Semver Types
A blog by @mrhaki.com

Nushell can be extended with plugins to have more functionality or types that are not part of...

#dev #softwaredevelopment #Nushell

jdriven.com/blog/2026/04/Nushell-Nic...

5 days ago 0 1 0 0
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Kotlin Kandy: Transform Map Keys Or Values With mapKeys And mapValues A blog about Groovy, Java, Clojure, Asciidoctor, Gradle and other cool developer subjects.

Transforming only keys and values of a Map in #Kotlin: blog.mrhaki.com/2026/04/kotl...

5 days ago 0 0 0 0
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Don't Let AI Write For You 2026.03

Alex Woods - Don't Let AI Write For You
alexhwoods.com/dont-let-ai-...

6 days ago 4 3 0 0

Looking for work. Will DevRel for coffee or wine 😁

1 week ago 32 31 1 0

Any south side Chicago peeps have doctor recs for Reed?

1 week ago 38 20 1 0
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Nushell Niceties: Check Semantic Version Is A Match A blog about Groovy, Java, Clojure, Asciidoctor, Gradle and other cool developer subjects.

Checking a string value representing a semantic version matches predicates in #Nushell: blog.mrhaki.com/2026/04/nush...

1 week ago 1 0 0 0
Kevin Dubois, Marit van Dijk and Loïc Magnette talking at Voxxed Days Zürich.

Kevin Dubois, Marit van Dijk and Loïc Magnette talking at Voxxed Days Zürich.

Marit van Dijk, Alina Yurenko, Andres Almiray and Paco van Beckhoven sitting on the front row of the cinema room at Voxxed Days Zürich.

Marit van Dijk, Alina Yurenko, Andres Almiray and Paco van Beckhoven sitting on the front row of the cinema room at Voxxed Days Zürich.

Paco van Beckhoven and Marit van Dijk talking outside at the speaker dinner at Voxxed Days Zürich.

Paco van Beckhoven and Marit van Dijk talking outside at the speaker dinner at Voxxed Days Zürich.

Andres Almiray and Marit van Dijk speaking at Voxxed Days Zürich. Andres is holding a microphone. Marit is typing on her laptop.

Andres Almiray and Marit van Dijk speaking at Voxxed Days Zürich. Andres is holding a microphone. Marit is typing on her laptop.

Had a great time speaking with @andresalmiray.com at @voxxedzurich.bsky.social last week about "Getting more out of Maven". Thanks @patbaumgartner.com and team for organising another great event!
And thanks @ddoutsiopoulos.bsky.social for the amazing pictures! 🫶 #VDZ26

1 week ago 9 5 0 0
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Me presenting

Me presenting

Today I joined JUG Noord @jugnoord.bsky.social to talk about my favorite topics, 🦍evolution & 🤓software development. Thanks for inviting me!

2 weeks ago 3 1 1 0
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Podman Desktop 1.26 Release | Podman Desktop Podman Desktop 1.26 has been released!

🚀 Podman Desktop 1.26 is out!

New improvements to make container & Kubernetes workflows smoother:

✨ Cert sync to VMs
🔐 Extension auth controls
📦 Better image pulls
🔎 Env-based filtering
🛠️ Troubleshooting tools
Read Blog: buff.ly/WIxjZQ4

#PodmanDesktop #Containers #Kubernetes

2 weeks ago 7 4 0 0
Finder's File menu in Tahoe with no icons

Finder's File menu in Tahoe with no icons

Here's one for the icons-in-menus haters on macOS Tahoe:

defaults write -g NSMenuEnableActionImages NO

It even preserves the couple of instances you do want icons, like for window zoom/resize

/cc @gruber

3 weeks ago 46 13 0 4
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Spring Boot 4.1.0-M3 available now Level up your Java code and explore what Spring can do for you.

Spring Boot 4.1.0-M3 has is available now! spring.io/blog/2026/03...

3 weeks ago 9 5 0 0
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Spring Boot 4.0.4 available now Level up your Java code and explore what Spring can do for you.

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 4.0.4 has been released and is now available from Maven Central.

spring.io/blog/2026/03...

I hope it's not 404ing.

#java #spring #springboot

3 weeks ago 20 6 2 1

I won't tell you that Marit and yours sincerely are working on refreshed version of our talk.
But there will be signs... ;-)

3 weeks ago 2 2 0 0
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If No One Pays for Proof, Everyone Will Pay for the Loss This post was initially written in French, Si personne ne paie pour la preuve, tout le monde paiera pour le sinistre Let’s start with a truism. In ordinary life, just as in economic life, we have to m...

“If No One Pays for Proof, Everyone Will Pay for the Loss”

https://freakonometrics.hypotheses.org/89367

> Even when a result looks correct on a small scale, that tells us almost nothing about its effects on the system as a whole

This is what I've been saying for years now to thundering silence.

3 weeks ago 17 5 1 2
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Nushell Niceties: Bumping Semantic Version A blog about Groovy, Java, Clojure, Asciidoctor, Gradle and other cool developer subjects.

Turn a string into a semantic version and use the bump command to update a version properly in #Nuhsell: blog.mrhaki.com/2026/03/nush...

3 weeks ago 1 0 0 0
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Andres Almiray on How to Release Any Software to Any OS with JReleaser Andres Almiray, a serial open-source contributor and the creator of JReleaser, discusses the project's state, noting that the tool is usable across any ecosystem, not just Java. He also touches on the...

Had the pleasure of speaking with @olimpiupop.bsky.social at the @infoq.com podcast regarding @jreleaser.org’s current state and future, as well as @commonhaus.org

www.infoq.com/podcasts/rel...

3 weeks ago 8 4 1 0
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Java 26 is boring, and that's a good thing - Mostly nerdless Java 26 is here, but it's boring. Nothing really exciting. But that's a good thing, as the boring stability is what made Java successful.

Java 26 is here, but it's boring. Nothing really exciting. But that's a good thing, as the boring stability is what made Java successful (co-written with @lutskedev.bsky.social):
mostlynerdless.de/blog/2026/03...

3 weeks ago 14 8 0 1

#Java 26 is here, and its main purpose is to provide a solid foundation for future things to come. It comes with new features, performance improvements and multiple enhancements–my blog post has all the info! 🚀

3 weeks ago 5 4 0 1

Switch to Codeberg

3 weeks ago 4 2 0 0
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Writing an agent skill Most developers now use coding assistants. I do too—Copilot at work, Claude Code at home. As a developer, I prefer not to repeat myself. This post explains why and how to avoid repetition as a skill. ...

Most developers now use coding assistants. I do too—#Copilot at work, #ClaudeCode at home. As a developer, I prefer not to repeat myself. This post explains why and how to avoid repetition with skills.

#DRY

4 weeks ago 8 5 1 0
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Spring Framework 6.2.17 and 7.0.6 Available Now Level up your Java code and explore what Spring can do for you.

🍃 #SpringFramework 6.2.17 and 7.0.6 are now available!

6.2.17 ships with 26 fixes and documentation improvements, and 7.0.6 ships with 45 fixes and documentation improvements.

spring.io/blog/2026/03...

4 weeks ago 6 4 0 0
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"Should I search the Web, or just ask ChatGPT?"

That depends on whether you actually want to know it.

1 month ago 17 3 0 0
How Spring Boot Really Works (From a Core Engineer) - Moritz Halbritter | The Marco Show
How Spring Boot Really Works (From a Core Engineer) - Moritz Halbritter | The Marco Show YouTube video by IntelliJ IDEA, a JetBrains IDE

I recorded an episode of the Marco Show with Marco Behler from JetBrains. It was an absolute pleasure, thanks for having me. We talked about a lot: how I ended up on the Spring team, Project Leyden, GraalVM, AI, and so much more. Also available as a podcast.

www.youtube.com/watch?v=FUFs...

1 month ago 5 4 1 0
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AI tools for developers are useful. But they are not enough.

If AI is getting better and better at programming, why are we focusing almost all innovation on coding tools?

Read more here: martinelli.ch/ai-tools-for-developers-are-not-enough/

1 month ago 7 2 0 1
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Spring Boot 4.0 Release Highlights Spring Boot 4.0 is a major release that coordinates upgrades across the entire Spring portfolio, moving to Jakarta EE 11, adopting JSpecify null-safety, defaulting to Jackson 3, and consolidating retr...

The new Spring Release Highlights page centralizes updates from across the entire portfolio, organized by Spring Boot version.

• Ecosystem alignment
• Upgrade planning
• Cross-cutting themes

Stop hunting for notes across dozens of project wikis.

spring.io/projects/rel...

1 month ago 12 5 1 0
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Command completion (..) complements existing features. You can still use shortcuts and postfix completion, but now you can also use command completion instead. #IntelliJIDEATips

1 month ago 5 1 0 0
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🎉 PI4J joins Commonhaus! PI4j is the Java library for interacting with the Raspberry Pi's GPIO pins and hardware interfaces. PI4J joins Commonhaus

Announcement by @commonhaus.org Foundation about #Pi4J: "Today, the Commonhaus Foundation is pleased to announce that PI4J joins as a member project."

www.commonhaus.org/activity/302...

1 month ago 15 5 0 0

micrometer 1.15.10 has been released!

Check out the changelog at github.com/micrometer-metrics/micro...

1 month ago 1 1 0 0
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