Joonas Lehtinen

It took way too long, sorry.

We taught AI a new modality @vaadin.com — UI

In Computer–Human Interaction, the AI decides what it needs from a human, and builds the UI on the fly — adapting in real-time as the human interacts.

Try it → computerhumaninteraction.com

THANK YOU for reporting!
Look like some pages work and some return 503.

10 years of building Web Components: the story of <vaadin-combo-box> A story about building Vaadin web components

10 years of building Web Components at @vaadin.com: celebrating the "anniversary" of <vaadin-combo-box>!

Check out this blog post to learn about our journey and how we finally migrated to @lit.dev:

dev.to/webpadawan/1...

🚀 Updated Vaadin MCP

✨ Combines semantic + keyword search with reranking

🛠️ MCP Tools Available:
📚 get_vaadin_primer - Vaadin fundamentals & best practices
🔍 search_vaadin_docs - Search Vaadin docs
📄 get_full_document - Complete doc retrieval
🏷️ get_vaadin_version - Latest stable version info

You might not want to commit generated folder...

Hilla and Kafka. Part 3: Kafka Streams Using Kafka Streams and Interactive Queries to consume, aggregate and query streaming data in the Hilla backend and visualize the data in the Hilla frontend in a reactive way.

New blog post: Using Kafka Streams and Interactive Queries to consume, aggregate and query streaming data in business web apps built with #Hilla (by @vaadin.com).

rene-wilby.de/en/blog/hill...

I would like to avoid any politics — it is a slippery slope that will distract focus quick.

Chinese, Finnish, German, and Spanish translations for
@vaadin documentation is now live. More languages will be added in August.

I'm starting a new live coding series!
🧠 Build a local AI chatbot in pure Java
⚙️ With Spring AI, Vaadin UI & Docker
🧙 It's a text adventure game with stats, magic, inventory, and AI-generated ASCII art.

Follow along if you’re into #Java + #AI!
#SpringBoot #Vaadin #LiveCoding

Hard to reason with that. Hopefully the organization will learn at some point of time that modern software development practices save money and deliver better results.

Then you can reverse the rewrite commit :)

YouTube video by vaadinofficial Vaadin Copilot AI Pair Coder Prototype

Vibe coding feature (prototype) in @vaadin.com Copilot is magical. Rudolf the red nose agent really builds the full Spring app for you…

youtu.be/rBX_ZPvPfN0

Thank you!

24/7 Flow with Vaadin 24.7 | Vaadin Vaadin 24.7 is here! Simplify upgrades, enhance security, and accelerate development. Upgrade now and keep coding 24/7!

Vaadin 24.7 = faster dev, stronger security, smarter automation!

✅ Flow: Resilient server-client messaging
✅ Hilla: React 19 support
✅ Copilot: Custom components & automation
✅ Control Center: Now GA!

+ more updates!

🔗 See what's new: vaadin.com/blog/vaadin-...

How do teams choose the right tech for #Java apps?

We’re running a quick survey—not just on what tools teams use, but why. Your insights will help the community make better decisions in 2025!

🔗 Join the survey: survey.survicate.com/8dd6ee2a0565...

It’s disheartening to see such tone-deaf cruelty from an official White House communication.

And it is not even that: $2.5M of the $8M contract _limit_ was already spent. Thus, the maximum saving would have been the remaining $5.5M.

In other words, actual saving is less than 0.07% of what DOGE claimed.

Kahneman’s “Thinking, Fast and Slow” has a parallel in AI:
• System 1: LLMs produce a rapid stream of thought
• System 2: Reasoning models think before answering

YouTube video by Sami Ekblad Vaadin Directory Wrapped 2024

Vaadin community releases a plugin update daily in average and adds a completely new plugin almost weekly. With over 2000 plugins to choose from, community really elevates Vaadin. This is Open Source in practice.

Kudos @samiekblad.bsky.social for leading Directory!

youtu.be/D5JbB5nf3qk?...

🤖 @tzolov.bsky.social created a cool demo showing off OpenAI gpt-4o-audio and Spring AI and said it could use a better interface. Ask, and you shall receive. Introducing Marvin, the paranoid UI 😆
github.com/marcushellbe...

YouTube video by vaadinofficial Full stack level up: what’s next for Vaadin by Joonas Lehtinen - Vaadin Create 2024

One year ago, I rejoined Vaadin to help guide the product in a fresh new direction. I'm immensely proud of what our team has achieved over the past 12 months. Five weeks ago, I had the privilege of summarizing what we build at our annual user conference.

12-minute recap:
youtu.be/lWbLQda_aPU?...

Figma to Vaadin | Figma Generate Vaadin UI code by copy-pasting designs from Figma. Works with Vaadin Flow (Java) and Hilla (React). This file documents the feature and offers few sample UI's that can be used for testing or ...

Copy-paste from Figma to @vaadin.com

www.figma.com/community/fi...

Hello world!