Michael Vitz

Watching something I once really liked slowly but surely fall apart makes me so sad. 😔

On my way home after a wonderful @BaselOne. The slides from my talk “Keep your dependencies up to date with @renovatebot” are already available at Thanks for having me and all the good conversations.

If you visited my talk, “What? That's possible in #Java?” at @Devoxx last week or already watched the recording on YouTube ( you can now also check out the examples on GitHub (

Recently, someone asked if I know companies that work within the core #java universe (like JDK vendors, tooling, no pure consulting) and are willing to hire people from Germany who can work from home. As I have no clue, please ping me if that matches your company.

If you're curious about #java and the #jdk ecosystem, you should attend This is a @Java_Champions run online conference split over four days. Of course, everyone can attend for free, although you have to register in advance. Hope to “see” you there.

When building @springboot applications on JDK 21 or newer Compiler warnings are produced because Mockito is self-attaching to the JVM instead of being registered as an agent explicitly. Does anyone know if there are plans to address this within the parent POM or in any other way?

After upgrading to #SpringBoot 3.4 and using the new webjars-locator-lite our internal WebJar package wasn't working any more. I wrote a short post about why that happened and what you have to do to fix that:

And there it goes, our @renovatebot just opened the MRs for updating @springboot to 3.3.5 on my three services.

Opening X is hard when everyone posts photos from #Devoxx and I miss it due to being sick :'( Have lots of fun everyone.

Ich habe letzte Woche auf der @bedcon über #ollama und #SpringAI gesprochen und dabei viel Live auf der Bühne gezeigt. Wer nicht dabei war oder noch einmal auf die Folien schauen möchte, findet diese jetzt unter zum Download.

RT @DevoxxUK: 🚨Breaking News! 🚨 The best UK developer community conference will take place on 7-9 May 2025! Follow for more updates, ticket sales, call for speakers, sponsor info, and special surprises. #Developer #Community #Tech #Conference

Danke für die schönen Gespräche und die aktive Teilnahme bei meinem Talk zu den Neuerungen von #java 23 beim #JavaForumNord. Auch wenn es das JDK in der finalen Version erst nächste Woche gibt, könnt ihr meine Slides jetzt auf finden.

I'm sure I dreamed about annotations on record components. In other words: tried a tool, found a bug, and now I'm lost in a rabbit hole.

Does any of my @java followers know if, and how, it's possible to detect if a record component is annotated when using ? I see that visitClass is called, but by that time it's too late because the record is converted to a class and the annotation is gone.

🎉 If you are using @bellsoftware liberica-runtime-container: @renovatebot finally supports that image out of the box since version 38.63.0 (

RT @JavaForumNord: #JavaForumNord am Dienstag, 10. September, im HCC Hannover, Michael Vitz zeigt die Neuerungen des JDK-Releases Live on Stage!

RT @GermanTechJobs: 💻 @bedcon is the annual gathering for Berlin's developer community. 📅 19th - 20th September 2024 📍 Berlin ✨ Become a sponsor today! 🤝 Sponsor the Event: 👉 Tech events in Germany: #GermanTechJobs

Often when scrolling through my timeline, I get a little jealous of all the folks working on #java, tooling for it, or are paid to work on frameworks. Although I know a little bit, I'm primary a user and would sometimes like to be more directly connected to the community.

RT @fniephaus: .@forked_franz and I will be talking at JUG Switzerland in September! 🥳 Come and join us if you're interest in JVM performance (Francesco's talk), or #GraalPy and other Graal Languages (my talk).🙂

GraalVM Community Summit meets JUG Switzerland!❤️ The day before our Community Summit we are organizing a meetup together with @jugch, where @fniephaus and @forked_franz will talk about all things @Java and @GraalVM. If you are in Zurich, join us!🇨🇭

This time of the year when everyone is posting their @Devoxx confirmation and you‘re still waiting for any response. I‘m constantly switching between hope and deep sadness.

And just after writing that I received the first rejection. Still a little hope left for my other two submissions.

I'm thrilled that a lunch talk of mine was accepted and that I will be able to meet many people once again. Hotel and train are already booked :-D