JCON

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 🙏

Bad documentation isn’t just annoying—it slows teams down. Onboarding, debugging, releases—all depend on clear, usable information. Wikis rot, tests aren’t enough, & outdated docs create real risk. @ElmarDott shows how to improve it systematically: javapro.io/2026/05/05/rtf… #DevOps

Our next #JCON2026 keynote is live: 'Scaling Data in a Sovereign #AI Platform' by Johann Strauss & @markuskett 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 @ammbra1508 #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 to… Grab your coffee and hit play: youtu.be/JOumBQjPNdM

Mehrere Browser-Tabs synchron halten, ohne überall UI.access() & Broadcasts zu verteilen? Genau diesen #Vaadin-Schmerz adressieren Signals seit 25.1. @SvenRuppert zeigt Konzept, Thread-Sicherheit & Migration: Teil 1: javapro.io/de/vaadin-sign… Teil 2: javapro.io/de/vaadin-sign… #Java

Deine Verschlüsselung ist korrekt & trotzdem unsicher. Nicht wegen heutiger Angriffe, sondern wegen zukünftiger. Daten von heute lassen sich später mit Quantencomputern entschlüsseln. Wie du das jetzt verhinderst, zeigt dir Sebastian Hempel: javapro.io/de/pqc-es-ist-… #Security #PQC

Python isn’t the only way to build #AIAgents anymore. With #SpringAI, #Java apps get memory, RAG, tools & model switching—all behind one #API. Same code runs from local Ollama to AWS Bedrock. Bezsonov Yuriy & @sascha242 show how: javapro.io/2026/04/30/bui… #AI #LLM #DevOps

#Java26 introduces warnings for illegal final field mutation. Future releases will deny it by default. Start migrating now: inventory with debug, enforce in CI. Learn how to avoid breakage & unlock safer JVM optimizations with Babneet Singh: javapro.io/2026/04/29/fin… #DevOps #Java

The wait is over! New JAVAPRO special edition 'Java in the Age of #AI ' is out now & FREE to download! More expert insights, community voices & how #GenAI is shaping modern #Java. Want the latest issues? Subscribe to our news & get every new free PDF: javapro.io/2026/04/28/sta…

Still writing instanceof + casts + nested conditionals? That’s legacy #Java. With #Java25, pattern matching simplifies type checks, switch logic, and data extraction. Learn how with Mihaela Gheorghe-Roman: javapro.io/2026/04/28/pat… #CleanCode #PatternMatching #JDK25 OpenJDK

LM-Apps werden schnell unwartbar, wenn Eingaben verteilt sind & Antworten uneinheitlich ausfallen. Jean-Claude Brantschen zeigt, wie #LangChain mit Templates & Parsern stabile Workflows schafft. Jetzt lesen & direkt besser bauen: javapro.io/de/langchain/ #AI #Python @LangChain

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 🫶

What an incredible #JCON2026! It was a blast to host you all — thank you for the energy, ideas, and inspiring conversations. Thank you for being part of it! JCON is over – #JAVAPRO was snapped up – but don't worry: The input keeps flowing. 🎁 You’ll receive the JAVAPRO PDF version as a gift, straight to your inbox via the "Thank You Newsletter". 2026.europe.jcon.one javapro.io

☕ 3:30 PM – break time at #JCON2026! Haven’t grabbed your free #JAVAPRO special edition yet? Now’s your chance —📍pick it up in the coffee area while supplies last! Want even more input? 👉 Dive into selected articles online: javapro.io 👉 Or check out the interviews on our YouTube channel: @JAVAPRO-channel/streams" target="_blank" rel="nofollow noopener">youtube.com/@JAVAPRO-chann… So grab a coffee, a magazine — and make the most of your break! @LoMagnette @spoole167 @cayhorstmann @FrankDelporte @RichardFichtner @vilojona @gracejansen27 @MarkusKett @sascha242 @ArturSkowronski #Java #AI #Performance #Frameworks #Cloud #JavaCommunity

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.

What looks like a fantasy story… is actually a warning. Supply chain attacks, compromised dependencies, self-spreading malware — all real and still happening today. @MohammadAliEN breaks down what Java developers must learn: javapro.io/2026/04/23/the… #Java #Security #DevSecOps

All interviews with @jbaruch from the past days — featuring top speakers, authors, and voices from the community — are now available! 🚀 Watch now and dive even deeper into the #JCON2026 topics 👇 @JAVAPRO-channel/streams" target="_blank" rel="nofollow noopener">youtube.com/@JAVAPRO-chann… Many thanks to our amazing speakers: @JohannesRabauer @asm0di0 @mgrygles @MaritvanDijk77 @piotrprz @brunoborges, Frederik Pietzko, Jan Thierolf, Lutske de Leeuw, Maaren Vandepere, Nupur Agarwal #LangChain4j #OpenSource #AIAgents #AI #JVM #SpringAI #Oel #Quarkus #SpecDrivenDevelopment #JavaStreams #SoftwareArchitecture #SpringFramework #A2A

NEEEED more input? 😏 Then jump into our livestream on YouTube now! @jbaruch is live at the Tessl & JAVAPRO Interview Booth, talking with speakers about: 💬 Fresh perspectives, side stories, and honest opinions 🔥 The kind of insights you don’t get in sessions 👉 Tech & innovation 👉 Business trends 👉 Culture & the big ideas behind #JCON2026 All interviews from the past days with top speakers, authors, and voices from the community are also available! 🚀 Watch now and dive even deeper into the JCON topics 👇 @JAVAPRO-channel/streams" target="_blank" rel="nofollow noopener">youtube.com/@JAVAPRO-chann… Big thanks to our amazing speakers: @sKriemhild, @devops_thiago, @lofidewanto, @cayhorstmann, @fmartin_, @ewolff, @KoTurk77, @EliteGentleman, @hansolo_ & more! #LangChain4j #OpenSource #AIAgents #AI #JVM #SpringAI #Oel #Quarkus #SpecDrivenDevelopment #JavaStreams #SoftwareArchitecture #SpringFramework #A2A

The brand-new #JAVAPRO – "Java in the Age of AI" Special Edition is now available in print at #JCON2026! 📍Find it at the Coffee Area 🖤Limited edition 📚Packed with exclusive articles on #Java #Microservices #AI #Frameworks & more 📦Fresh from the press – and going fast Stop by, grab a copy, and join the conversation around #Java and #AI! More articles online: javapro.io Many thanks to the authors: @LoMagnette @spoole167 @cayhorstmann @FrankDelporte @RichardFichtner @vilojona @gracejansen27 @MarkusKett @sascha242 @ArturSkowronski & more

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!