Sebastian Kuehnau

269 posts

Sebastian Kuehnau

Sebastian Kuehnau

@seb_vaadin

Berlin, Germany Katılım Kasım 2018
445 Takip Edilen170 Takipçiler
Sebastian Kuehnau
Sebastian Kuehnau@seb_vaadin·
Off to Switzerland! 🇨🇭 The @jugch tour starts tomorrow. I’m hitting the road to show you how to build modern web UIs in pure #Java. Let’s give your backend the face it deserves with @vaadin. 🦌 03.03. 📍 Bern 04.03. 📍 Lucerne 05.03. 📍 Zurich Details: jug.ch/events.php
Sebastian Kuehnau tweet media
English
1
2
8
370
Sebastian Kuehnau
Sebastian Kuehnau@seb_vaadin·
I'll be visiting @jugch next week & talking about: "Your backend deserves a face."! 🇨🇭 No API pain, no JS fatigue – just building modern web UIs in pure Java with @vaadin . Meet me in Bern (3.3.), Lucerne (4.3.), and Zurich (5.3.). Join me here: jug.ch
English
1
1
2
238
Sebastian Kuehnau retweetledi
Vaadin
Vaadin@vaadin·
Exciting news! 🎉 #VaadinCreate 2026 is coming to #Barcelona! Join us for two days of coding, real-world #Java insights & connecting with top engineers. Get your Early Bird ticket before March 31 👇 🔗 bit.ly/4a52pCv
English
0
4
8
543
Sebastian Kuehnau retweetledi
Vaadin
Vaadin@vaadin·
If your #JavaSwing app is costly to update, hard to distribute, or UX-limited, the question isn’t if you modernize — it’s how. Swing Modernization Toolkit lets you run Swing in the browser & modernize incrementally all in #Java. See how it works👇 🔗 bit.ly/49WWdxO
English
0
3
6
273
Sebastian Kuehnau retweetledi
BellSoft
BellSoft@bellsoftware·
Update: the Spring Boot + Vaadin webinar on Java container images is now happening tomorrow (Jan 20), same time. @cat_edelveis and @MiikkaAnd will cover layering, image size, startup time, and practical hardening. 🕒 18:00 CET / 12 PM ET / 9 AM PT 🔔 pages.vaadin.com/creating-a-per…
English
0
3
4
256
Sebastian Kuehnau
Sebastian Kuehnau@seb_vaadin·
🚀 Upgrade your @vaadin State Management with Signals! I’m demoing Vaadin Signals: A reactive, thread-safe way to manage state across components and browser tabs. 🌐 Links and source code in the replies! 🧵
English
1
4
5
98
CVE
CVE@CVEnew·
CVE-2025-15022 Action captions in Vaadin accept HTML by default but were not sanitized, potentially allowing Cross-site Scripting (XSS) if caption content is derived from user input… cve.org/CVERecord?id=C…
English
1
0
0
321
Sebastian Kuehnau retweetledi
Simon Martinelli
Simon Martinelli@simas_ch·
🚀 Release announcement: vaadin-jOOQ-archetype 1.0.0 I just released version 1.0.0 of my Vaadin jOOQ Maven Archetype. It helps you bootstrap a modern Java full-stack application with: - Vaadin 25 - Spring Boot 4 - jOOQ Clean, production-ready defaults The goal is simple: start fast, keep control over SQL, and stay productive without unnecessary complexity. 👉 GitHub: github.com/martinellich/v… Feedback and contributions are very welcome. #java #vaadin #jooq #springboot #fullstack #keepitsimple
English
1
1
23
1.3K
Sebastian Kuehnau retweetledi
Simon Martinelli
Simon Martinelli@simas_ch·
Nächsten Mittwoch, 3.12. spreche ich über Spec-driven Development bei der Java User Group Switzerland in Bern Kommt vorbei, ich freue mich auf euch! jug.ch/html/events/20…
Deutsch
0
1
2
430
Sebastian Kuehnau retweetledi
Simon Martinelli
Simon Martinelli@simas_ch·
I had a lot of fun at yesterday's webinar on Spec-driven Development. Therefore, there will be another webinar this time on Spec-driven Testing next Tuesday at 4:00 PM CET. We'll see how to test the Vaadin application from the first webinar, browserless with Karibu Testing and end-to-end with Playwright. Who's in? youtube.com/watch?v=3ReLE_… #AI #SpecDriven #KeepITsimple
YouTube video
YouTube
English
0
3
8
1.5K
Sebastian Kuehnau
Sebastian Kuehnau@seb_vaadin·
Auf dem Weg zur JUG Görlitz, wo ich heute Abend eine Präsentation über @vaadin halte. Die Zeit im Zug wird noch intensiv genutzt. Los geht es um 19 Uhr in den Räumlichkeiten von @QESTIT_GROUP. Ich freue mich auf euer kommen!
Sebastian Kuehnau tweet media
Deutsch
0
0
0
43
Sebastian Kuehnau
Sebastian Kuehnau@seb_vaadin·
@simas_ch What is your approach to correct or improve the results from the MCP server?
English
1
0
0
51
Simon Martinelli
Simon Martinelli@simas_ch·
MCP has a significant influence on AI agents. It can fundamentally improve the results. However, if the results of the tools are not good, it can also have a negative effect. I run a Karibu Testing MCP server, and it had a bug related to testing confirmation dialogs. It took me a while to understand why Claude Code couldn't create proper confirmation dialog tests. Conclusion: MCP servers require thorough review and testing.
Simon Martinelli tweet media
English
3
1
3
701
Sebastian Kuehnau retweetledi
Catherine Edelveis
Catherine Edelveis@cat_edelveis·
👾Vaadin Tutorial for Beginners: Beautiful UIs in Pure Java My new step-by-step tutorial on using @vaadin with @springboot to build awesome UIs. Create a login page, filtered search, and update form in just 15 minutes. No HTML or JS needed! youtu.be/67oJxPRa3Mg
YouTube video
YouTube
English
1
8
69
5.7K