Our next #JCON2026 session is live: 'The Reputation Formula: #Turbocharge Your #Developer Career' with Bruno Souza #Reputation is what people believe about you. And it is your reputation that #defines the projects you work at, … Grab your coffee and hit play: youtu.be/q9CEpXgUjvY

Our next #JCON2026 session is live: 'Lights, Camera, #GitHub Actions!' with Andres Almiray It's been said that #automating oneself out of a job is one of the best qualities of a #software engineer. When it comes to building and releasing … Grab your coffee and hit play: youtu.be/2fWpOZycdro

Our next #JCON2026 session is live: 'It's the Empathy, Stupid!' with Konstantin Diener Some of us forgot what the #groundwork of a #healthy organisation is. As #agile and product missionaries we bothered our boards and C-levels with practices … Grab your #coffee and hit play: youtu.be/EexBbhJjb1g

Our next #JCON2026 session is live: 'JSpecify: Getting Rid of the Billion-Dollar Mistake in #Java for Good This Time?' with Michael Simons With #JSpecify and static #code analysis combined we see yet another attempt to solve the #nullability … Grab your #coffee and hit play: youtu.be/V5N56NmGqCw

Our next #JCON2026 session is live: 'Virtual Threads, Structured Concurrency and Scoped Values: Putting it All Together' with Balkrishna Rawool Project #Loom brings #lightweight concurrency to #Java with #VirtualThreads, Structured Concurrency, … Grab your coffee and hit play: youtu.be/2lUcmOj18fI

Our next #JCON2026 session is live: 'Serverless #Java Web Applications on #AWS Lambda with #Micronaut #Quarkus and #SpringBoot' with Vadym Kazulkin In this talk, I will present and compare several approaches of how to #develop run and #optimize … Grab your coffee and hit play: youtu.be/B8ko_q4g3qc

Our next #JCON2026 session is live: 'Testing #SpringBoot Applications Demystified' with Philip Riecks #Testing plays a crucial role in software #development allowing you to catch #bugs ensure your #code functions as intended, and provide ... Grab your coffee and hit play: youtu.be/Tr24w--ZXgU

Our next #JCON2026 session is live: 'It (Only) Starts with Containers' with Patrik Duditš So you've got your #application bundled up in the #container great! The #fun is not over though, getting it to #production is where more choices and ... Grab your #coffee and hit play: youtu.be/TBA4Zao9y7g

Our next #JCON2026 session is live: 'Engineering for the Long Haul: Operating #OpenSource at Scale' with Artem Karasev Open-source #software powers the world’s most #innovative enterprises, but keeping it #secure #compliant and #reliable over … Grab your coffee and hit play: youtu.be/T7GEshcPlPo

Our next #JCON2026 session is live: 'From #Bytes to Brilliance : Optimizing Large File Delivery in #REST APIs with #SpringBoot' with Nupur Agarwal In this talk, we’ll walk through a real-world journey of #optimizing file delivery in … Grab your #coffee and hit play: youtu.be/h2vbNb5HY0M

Our next #JCON2026 session is live: 'From a #Workshop to a Wake-Up Call: My #Journey into Accessibility' with Tamari Gogebashvili It all started with a training session on #accessibility What began as a #technical workshop soon became a … Grab your #coffee and hit play: youtu.be/R0sQp241y-w

Our next #JCON2026 session is live: 'The Road Not Taken: A Developer's Guide to Life Beyond Spring Boot' with Frederik Pietzko Beyond #SpringBoot lies a world of possibilities waiting to be explored. Join me as we chart a course from ... Grab your #coffee and hit play: youtu.be/7youcxwGfNU

Our next #JCON2026 session is live: 'Talk to Your Data: Natural Language Data Access in #Java with #Hibernate #Quarkus and LangChain4j' with Marco Melladelli Explore how Hibernate ORM, Quarkus, and #LangChain4j come together to enable … Grab your coffee and hit play: youtu.be/tMW5jxX6DoA

Our next #JCON2026 session is live: 'Java Container Mastery: #Optimizing Images Across Build Tools' with @maeddes In today's #cloudnative landscape, containerizing #Java applications has become a standard practice, but the path to optimal … Grab your coffee and hit play: youtu.be/mQ9F-44ETYk

Our next #JCON2026 session is live: 'High-Speed #Crypto Trading: #JVM Techniques Behind Bitvavo’s Microsecond Revolution' with Oleg Lobanov & Marcos Maia Achieving single-digit #microsecond latencies in #cryptocurrency trading isn’t just … Grab your #coffee and hit play: youtu.be/9rQmil8Qypc

Our next #JCON2026 session is live: 'Building Observable #Java Apps that Scale with Quarkus' with Thiago Gonzaga #Observability is not a #luxury anymore — it’s a #survival skill. In this talk, we’ll go hands-on with #Quarkus and #OpenTelemetry ... Grab your coffee & hit play: youtu.be/4xi5-5pViEA

Our next #JCON2026 session is live: 'The #JUG-gle is Real: What #Java User Groups Can Teach Us About #Growing Open Source Communities' with Dominika Tasarz #Opensource communities don’t grow by #magic - they grow through #people #consistency … Grab your coffee and hit play: youtu.be/T6ha0E_q8CA

Our next #JCON2026 session is live: 'Guess the #Java Version' with Johannes Bechberger In this #interactive quiz, we'll look through Java snippets from Java 1.0 to #Java25 and try to guess the version. It's harder than you might think. Grab your #coffee and hit play: youtu.be/6_T-Gs-XJI0

Our next #JCON2026 session is live: 'Painless Organisation and Maintenance of Maven Builds' with Sandra Parsick Painless maintenance of #Maven builds needs a good baseline. If your #project domain is special, you might consider the good old … Grab your #coffee and hit play: youtu.be/eSzDts4WMh4

Our next #JCON2026 session is live: 'From #Git Panic to Git Zen: With a Little Help from #AI' with Pasha Finkelshteyn Everyone knows how to push, pull, and commit in Git. But Git’s advanced features like #reflog #bisect and interactive #rebase … Grab your coffee and hit play: youtu.be/w6yDd-rP2gc

Our next #JCON2026 session is live: 'Deep insights and ready for #AI - #Spring Tools 5 in Action' with Martin Lippert #SpringBoot 4 and #SpringFramework 7 are here — and #SpringTools 5 is ready to supercharge your experience. The new major … Grab your coffee and hit play: youtu.be/oeR4Ps-m3SE

Our next #JCON2026 session is live: 'Approaching the #JDK 25 #LTS release through real-world migration' with Wolfgang Weigend Some changes have been made between JDK 8 and later JDK versions. Each new #Java SE version may contain #minor binary, … Grab your coffee and hit play: youtu.be/3gPoeOXox5I

Our next #JCON2026 session is live: '3 Years of Quarkus in Production, What Have We Learned?' with Jago de Vreede Quarkus has grown in popularity in the last years, but what’s it really like … Grab your coffee and hit play: youtu.be/nm23hS5N6tU

Our next #JCON2026 session is live: '#Reactive Web Apps With 100% #Java' with Leif Åstrand Full-stack #development can be intimidating, especially when going beyond the typical #CRUD A reactive application with real-time updates requires … Grab your coffee and hit play: youtu.be/vbT5gRmCS98

Our next #JCON2026 session is live: '#Microservices and Microfrontends: #Scaling #Learning #Growing – Our Journey' with Lofi Dewanto & Patricia Erdelen Five years ago, our sales applications faced the #challenge of adapting to support more … Grab your coffee and hit play: youtu.be/CkNo9xD3ewQ

Our next #JCON2026 session is live: 'Flight Recordings and Mission Control Through Thick #Clouds' with Martin Skarsaune When you need to #troubleshoot really tricky #production issues flight recorder and mission control are the #ultimate tools. Grab your coffee and hit play: youtu.be/W4JM27t2Rec

The date for #JCON EUROPE 2027 is locked! During #JCON2026 we already teased a “Save the Date” Now we can share the official dates of #JCON2027: 📅 April 26–29, 2027 📍 #Cinedom Cologne, Germany Ticket sales will start later this year. Mark your calendars & don't forget to follow for updates!

Our next #JCON2026 session is live: 'When #ORM Becomes OMG: #Performance Pitfalls in JPA and Friends' with Jos Roseboom #JPA makes #database interaction feel almost magical—until your app grinds to a halt. In this talk, we’ll take a tour … Grab your coffee and hit play: youtu.be/RjnXUFyXlno

Our next #JCON2026 session is live: 'Why Bad #Decisions Happen' with Anja Kunkel Have you ever been in the following situation? You know for certain that you are #technically right. Your #project has to be #done for the #benefit of the … Grab your coffee and hit play: youtu.be/1kkPR9XhRdE

Our next #JCON2026 session is live: 'You Gotta Keep the Dogs Away: #YOLO Developer Workflows with a #Coding Agent in a Box' with Kevin Wittek As coding agents like #Claude Code, #OpenAI Codex and #Gemini CLI become part of developers’ daily … Grab your coffee and hit play: youtu.be/-czKfFETmPU

Our #JCON2026 recap is here! 🎬🔥 Still thinking about those four insane days in Cologne? Or wondering what you missed at this awesome #Java conference? From packed sessions to hallway-track moments & an absolutely incredible #community — this recap is pure #JCON energy. ❤️ youtu.be/Hnf-Ov50NHo

Our next #JCON2026 session is live: 'Building a #Digital Product Passport with #Java and Cardano' with Fabian Bormann #Blockchain technology is widely known for its applications in #decentralized financial services, though it is often ... Grab your coffee and hit play: youtu.be/X5UhAOtPFYk

Our last #JCON2026 keynote is live: 'Code Is Cheap. #Software Isn’t.' by Markus Eisele #AI can now write #code faster than most #developers can #review it. That sounds like progress. In many teams, it isn’t. In real #Java systems, the problem… Grab your coffee and hit play: youtu.be/Di4ii6Xsb9A

Our next #JCON2026 keynote is live: 'Scaling Data in a Sovereign #AI Platform' by Johann Strauss & Markus Kett In this joint #keynote #Dell AI Factory and #Cyrock.AI show how to build a sovereign AI platform that turns AI strategy into… Grab your coffee and hit play: youtu.be/MRSdUfnXgQE

Our first #JCON2026 keynote is live: 'Java: 30 Years and Beyond' by Ana Maria Mihalceanu #Java has stayed relevant by adapting to every shift in how we build and use software: from #monoliths to #microservices from #desktop to #web from on-prem… Grab your coffee and hit play: youtu.be/JOumBQjPNdM

Thank you for #JCON2026 ♥️ For the #energy For the #conversations For making this more than just a #conference Save the date for next year #JCON2027 But now enjoy your well-deserved weekend 🙏

And that’s a wrap. ❤️ #JCON2026 is over, but the ideas, conversations, and connections stay! From the first session to the last hallway chat. This week was something special🔥 Thank you to everyone who brought the energy, the curiosity, and the passion. See you again at #JCON2027 🫶

Leftover Shirts Sale 👕 We’re selling remaining #JCON2026 shirts until 5:30 PM today! 🛒 Available via our Pretix shop (all variants listed there) 💰 25€ + 19% VAT 👉 Show your paid order at the InfoPoint & get your shirt First-come, first-served.

NEED more input? Then jump into our livestream on YouTube! Baruch Sadogursky is live at the Tessl & JAVAPRO Interview Booth, talking with speakers about: 💬 Fresh perspectives, side stories & insights you don’t get in sessions Watch interviews from the past days too: www.youtube.com/@JAV...

Reminder for all #JCON2026 shirt buyers 👕 Pickup is running at the #InfoPoint right now! You’ve got time until 2:00 PM today to grab your shirt ⏳ After that, you might not be able to get it today. Don’t forget to swing by!

🔴 Now LIVE on YouTube! At #JCON2026, the conversation continues off-stage! Join @jbaruch at the Tessl & @JAVAPROmagazin Interview Booth for in-depth discussions with speakers on technology, innovation, business, and culture. Join the stream and be part of it! LIVE 👇 youtube.com/@JAVAPRO...

Got a #JCON2026 shirt? 👕 Don’t miss your pickup window! Shirt pickup starts at 10:00 AM at the InfoPoint. You’ve got until 2:00 PM to grab it — that’s a 4h window ⏳ After that, it may no longer be possible to collect your shirt today. 👉 InfoPoint. Today. Before 14:00. See you there! 🔥

Same procedure as every day? 👀 Wake up. Get yourself a #Coffee Try to decide between all these amazing sessions. End up in a completely different one. Yep. Sounds like #JCON2026 😄 Day 3 is on—let’s keep the hype going. 🔥

And that’s Day 2 of #JCON2026 ❤️ What started as a #conference now feels like something more! Shared ideas, familiar faces, #real connections. You can feel it everywhere. Take that #energy into the evening, VIP Dinner awaits 😉 One more day to go. Let’s make it count. 🔥

📢 Reminder for all JCON attendees! If you’ve pre-ordered a T-shirt, please make sure to pick it up at the info point. ❗️We will not ship the shirts, so tomorrow is your last chance to collect yours! Don’t miss it—grab your shirt before you leave 👕

🔴LIVE now - More than just talks at - #JCON2026! The #Tessl & #JAVAPRO Interview Booth brings real conversations with speakers – hosted by @jbaruch From key conference topics to technology, innovation, business, and culture – all happening LIVE 👇 www.youtube.com/@JAV...

New day. Same chaos. 😄🔥 Day 2 of #JCON2026 is live. More sessions to catch. More people to meet. More ideas your brain won’t be ready for. Yesterday already opened way too many mental tabs… & today we’re adding even more. Let’s dive back in, keep the energy high, & see where the day takes us.

WHAT. WAS. THAT!🔥 #JCON2026 you're insane! What a kickoff for our first day! So many kind people. So many interactions. So much to learn! You can't tell us that's only the first day. Keep that energy running! Everyone, have a great evening & see you tomorrow for an even better day🫶

THIS IS IT! #JCON2026 IS ON! Doors are open. #Coffee is ready. A #cinema full of #Java #developers is about to come alive. 🎬 100+ sessions 🧠 countless ideas 🤝 real conversations with the #community Let’s fill those rooms. Let’s write some stories. Let’s make these days unforgettable. 🔥

WOKRSHOPS. STARTING. NOW. #JCON2026 #Laptops open. #Minds ready. Let’s go deep. This is where ideas turn into hands-on experience. If you’re here: you know what’s coming. If you’re not: you’re already missing out 😉 Let’s kick this off properly. 🔥