🎉 New year, new goals, and last chance to submit your proposal! 🎤 Only 4 days left to submit your session ⏰ Kick off 2026 by sharing your ideas, lessons, and passion with the community.

Seeing how I sucked at many of my goals last year, this year, I will have THE ONLY goal. I will be a smart cookie and plan my day with all my hobbies, sports, and quehaceros up to a minute.

Friends, you have been the most helpful here and on X, thank you, now it's time for me to dig in and choose something from this great variety😍 PS I know creating a personal blog is no big deal, but I'm always SO excited about choosing a stack!

👾 Java in 2025: A Year in Review Wrapping up 2025! Here's my overview of the key events in and around the #Java ecosystem, including JDK 25 LTS, AI on JVM, framework updates, and more ➡️ Have a joyful holiday season, friends, see ya all in 2026💝 www.youtube.com/watch?v=UoEK...

I think I'm ready for a personal website as the number of my articles, videos, and talks grows, and I really need my own space🙂 Fellow bloggers, what approach do you use / recommend? Managed WordPress, GitHub Pages, Vercel... ?

COMING UP! On January 15, I'll be speaking at the @vaadin.com webinar on how to create a perfect Docker image for #Java apps. We'll explore how to: - Cut memory usage - Slash startup time - Speed up rebuilds - Minimize CVEs Register now and see ya there✨ pages.vaadin.com/creating-a-p...

👾New on CyberJAR: What's New in JDK 26? Next feature release of #Java includes 10 JEPs, mostly with improvements to the features under development. Here's a laconic overview: www.youtube.com/watch?v=wtTd...

Open J Proxy 0.3.0-beta is out, packed with new and improved features! Key updates: - Multi-node support - Language-agnostic protobuf serialization - Testing pipeline simulating complex scenarios - Many new configurations for finer control More in a JAVAPRO article: javapro.io/2025/12/17/o...

Yay, @vaadin.com 25 is out with lots of cool improvements to the components and also a simplified workflow with themes as stylesheets and easily reusable base styles: can't way to lay my hands on this version when I'm done with quehaceres urgentes🙂 vaadin.com/blog/vaadin-...

We had an amazing talk with Dr Rod Johnson about agentic AI on the JVM with Embabel! If you've missed it live, no worries, the recording is available on YouTube (all the links mentioned on the stream are in the video description): www.youtube.com/watch?v=bHjS...

We are starting in 30 minutes!

🔖 How Migrating to Hardened Container Images Strengthens the Secure Software Development Lifecycle Find out how standardizing on a hardened base helps to promote SSDLC practices and convert vulnerability management into a predictable workflow: dzone.com/articles/how...

Friends, our livestream with Dr Rod Johnson will take place tomorrow at 19.30 AEDT (10.30 CET) - grab a cup of coffee and explore Agentic AI on the JVM with Embabel with us. The link is the same. See you there!

Friends, yours truly has miscalculated the time zones (should have asked LLM instead of doing it myself🙈), so we have to postpone the stream with Dr. Rod Johnson - I'll keep you posted!

BellSoft Introduces Hardened Container Images-"The concept of hardened images has been picking up lately. The logic behind them is to address the issues arising from running container images" On IProgrammer: cutt.ly/ttp1bPuq @bellsoft.bsky.social @cat-edelveis.bsky.social #java #docker

And here is the promised surprise!🎁 Tomorrow at 13 PM AEST, I will be joined live by the father of @spring.io , legendary Rod Johnson to talk about Embabel, a JVM-native framework for building enterprise AI agents leveraging goals, planning, and type safety: www.youtube.com/watch?v=bHjS...

Friends, we had an amazing stream with @starbuxman.joshlong.com on the latest and greatest in Spring Boot 4: no worries if you didn't catch it live, the recording is available here: www.youtube.com/watch?v=c8q8... Meanwhile, I have prepared one more surprise for you...😏

This is happening today! Join me and @starbuxman.joshlong.com at noon PST to explore the goodies of Spring Boot 4!🧁 www.youtube.com/watch?v=c8q8...

Going live in a minute!

▲ How do you enable sorting in a @vaadin.com Grid? Just one line of #Java is all it takes – multi-column sorting included. In this short video, Drew will show you how to sort records in a Vaadin Grid – quick, clean, no boilerplate. 💻 Source code: github.com/drewharvey/v...

Join me for a Friday Chat with Cat at 15 CET for (not only) Java news, my updates, and just talking ✨ www.youtube.com/watch?v=ddKE...

Friends, our livestream with @starbuxman.joshlong.com on Spring Boot 4 goodies will take place at 12 PM PST on December 12th: here's a link to the event, hit the Notify button so as not to - my goodness! -miss it 💫 www.youtube.com/watch?v=c8q8...

Expand your #Java applications' performance with this new guide on optimizing #MongoDB queries by Farhan Hasin Chowdhury. Boost efficiency and enhance load times now! #Java #MongoDB #Optimization foojay.io/today/optimi...

Want to add a filter to a @vaadin.com Grid – in Java only? Drew shared a nice example showing how simple it can be. 🔗 Code: github.com/drewharvey/v... Great for dashboards & CRUD apps. #Vaadin #Java #WebDev

AI-generated kidnapping scams - well, that was BOUND to happen pretty soon www.ic3.gov/PSA/2025/PSA...

📚 @infoq.com covers BellSoft Hardened Images, a hardened OS + runtime that shrinks the attack surface of #Java containers. The article shows what goes into base images, why CVE counts climb up, and how it compares to Alpine, distroless and other minimal bases devs use: www.infoq.com/news/2025/12...

Curious, scared or simply you didn't know about the #Security threats that #AI #MCP can bring ? In this #article at @foojay.io I talk about them. ➡️The 5 Knights of the MCP Apocalypse 😱 foojay.io/today/the-5-...

Friends, I can't wait to share with you something exciting!🤩 This Thursday, I will be joined live on CyberJAR by the one and only @starbuxman.joshlong.com to discuss what goodies Spring Boot 4 brought us! Stay tuned, I'll keep you posted on the exact time😘

🚀 The unified IntelliJ IDEA 2025.3 is here – no need to choose between Community Edition and Ultimate! Update now for: ✅ Simpler setup and updates in one IDE ✅ Smoother development ✅ More free features Full details 👇 jb.gg/idea-unified...

Hardened images make container security a lot more predictable. @cat-edelveis.bsky.social shows how minimalistic base and clear provenance work in real setups, including a #Java workflow with Liberica, multi-stage builds, digests, and Cosign: youtu.be/Co164aVGCjw

In the next @foojay.io #podcast, we're exploring an increasingly important topic: developing #sustainable software that is both #performant and #ecofriendly. Learn more from Daniel Witkowski, @koturk.nl, Ronald Dehuysser, and Jan Ouwens. On YouTube www.youtube.com/watch?v=wZvU... or in podcast app.

Meet me tomorrow at 16 CET for a Friday Chat with Cat✨ Come by even if just for a few minutes to chat with me OR just hi OR simply listen to me blabbering away, your call😃

👾New on CyberJAR: Build RAG System with Spring AI In this video, @asm0dey.site explores the full RAG workflow in #SpringAI: document ingestion with TikaDocumentReader, embedding generation, vector storage, and similarity-based retrieval. www.youtube.com/watch?v=Etnc...

Now that Spring Boot 4 is here, where are you? Tune in tomorrow when @dashaun.com joins the Code Remix Weekly livestream to chat about all things Spring Boot 4. 🎧 🔴 Tomorrow at 21:00 CET / 3 PM ET

📢 Exciting news! CyberJAR is now a partner of Open J Proxy, a smart proxy that protects your DBs from overwhelming connections and helps to scale the app safely. Expect ➡️ Useful content on OJP, ➡️ News about key project updates. More about OJP in my latest stream -> www.youtube.com/watch?v=JrpT...

The workshop is tomorrow. @asm0dey.site and Anton Weiss will show how small tweaks to a Spring fat-JAR image can make scaling on K8s feel a lot more predictable. Register: bit.ly/3MkTNiS

Alright, the first "Friday Chat with Cat" (pilot) episode will run this Friday! 🤩 I'll give more details on the time later. I think the first weeks the time will be flexible to see what works best for the most. Place: X, Twitch, maybe YouTube. A-a-and I already have something exciting to announce!👾

Friends, are there any AI-related topics or guides you feel that are missing? With the tons of content on integrating AI into #Java projects, I was wondering whether there is any point in creating more tutorials as it seems there is no stone left unturned.

Join me and Rogerio Robetti today at 6 CET to explore how we can make db connections resilient to traffic spikes with Open J Proxy!

Building a complete Spring Boot UI entirely in #Java with Vaadin! @cat-edelveis.bsky.social walks through everything from secure login to data grids with lazy loading, all without touching JavaScript. For Java devs who want to stay in their comfort zone: www.youtube.com/watch?v=67oJ...

👾Proxy Power: Boosting Java App Performance with Open J Proxy Join me and Rogerio Robetti this Friday to explore Open J Proxy, an open-source proxy between the app and relational DB enabling you to scale safely and keep your DB access efficient AND resilient: www.youtube.com/watch?v=JrpT...

👾 New on CyberJAR: Hardened Container Images 101 Find out how hardened container images help to set up a clear CVE management process and lower operational overhead at the same time: www.youtube.com/watch?v=Co16...

Stop fighting SSE token spacing issues in AI chat UIs. Here's the fix: NDJSON streaming. @cat-edelveis.bsky.social built a complete demo with Spring AI ChatClient + Vaadin👉 www.youtube.com/watch?v=l6c0... Full code on GitHub. Works with Ollama or any Spring AI model. #SpringAI #Java #LLM

JRush is LIVE! Join us now and explore custom buildpacks, IntelliJ IDEA security tools, and hardened base images❤️‍🔥 www.youtube.com/live/RzbPTCz...

🚨 Remote Debugging Spring AI + Docker Model Runner Issue From IntelliJ IDEA 🚀 www.youtube.com/watch?v=wwaB... ✨ Integrating Spring AI with Docker Model Runner ✨ Using Docker Compose to run LLM model & Spring Boot app ✨ Remote Debugging from IntelliJ IDEA #Java #SpringBoot #SpringAI #Docker

👾New on CyberJAR: Streaming LLM Tokens with NDJSON and Spring AI I've decided to focus on a more niche topic with #SpringAI: this guide is useful if you want to stream LLM responses and avoid parsing issues www.youtube.com/watch?v=l6c0...

Most CVEs don’t live in your code, they live in your base image. At JRush Ep.6, @cat-edelveis.bsky.social (BellSoft) shows how hardened, zero-CVE containers change that, making #Java services secure by design. Live on Nov 18: jrush.bell-sw.com/episode6

As requested, I will do a live demo on how I use the AI Unified Process aiup.dev Join my live stream next week on Tuesday, November 18th, at 4 pm CET. Prepare your questions! www.youtube.com/watch?v=jwPB...

Meet our third JRush speaker: yours truly😁 I'll explore how hardened container images help teams meat compliance and security goals without delaying deploys and wasting engineering time on dealing with CVE-infested base image Free registration: jrush.bell-sw.com/episode6

#Java devs: tired of manually translating Figma designs into Vaadin Flow code? @JuusoKantonen shows #Figma MCP + Vaadin MCP in action: youtube.com/watch?v=vNcv...