JCON

Java Community Conferences - in-person.

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[JCON @jcon_conference]

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!

[JAVAPRO @JAVAPROmagazin]

Warum für immer mehr SaaS-Funktionen zahlen, die man gar nicht braucht? @SvenRuppert hinterfragt ClickUp & entwirft mit #KI eine eigene Anwendung auf Basis von @vaadin.

Wem gehören Daten, Code & Workflow? Lies jetzt: https://t.co/VZsWxiWNPM

#Java #Vaadin #Datenhoheit #JAVAPRO

[JAVAPRO @JAVAPROmagazin]

30% OFF or FREE? Your #JCON2027 ticket is waiting & the shop is open! Grab your Blind Ticket with 30% off or find out how to attend for FREE as part of the #Java community.

Get your ticket:
🇬🇧 https://t.co/Y5NuqdrrZX
🇩🇪 https://t.co/lTzWcrM55J

#JavaCommunity #JAVAPRO #JUG

[JAVAPRO @JAVAPROmagazin]

20 minutes to build a feature with #AI. A week to fix the damage. @sogldaniel explores why vibe coding can create technical debt & how Spec Driven Development changes the workflow. Read the analysis: https://t.co/FkCPGeYIki

#VibeCoding #SoftwareDevelopment #SDD @github @RedHat

[JCON @jcon_conference]

Some of the most useful sessions at #JCON2027 have no slides.

At the Mentorship Hub with @brjavaman speakers bring a topic and you discuss it at a table in a small group. Or bring your own problem.

🎟️ Blind tickets, 30% off: https://t.co/WIz7s1PaFD
#JCON #Java

[JAVAPRO @JAVAPROmagazin]

What separates companies experimenting with AI from those building AI-native businesses? Lokesh Chenta argues it's not just better tools—it's coding agents, enterprise search, workflow automation, #MCP & an AI-first culture: https://t.co/IU5tLACve2

#GenAI #AgenticAI @AnthropicAI

[JAVAPRO @JAVAPROmagazin]

#Java or #Kotlin: Which language helps you write safer code? @ArghRich compares null safety, thread safety, injection risks & type-safe builders.

Where does Kotlin have the edge? Read the comparison: https://t.co/HHV7LLpxoe

#JVM #Security #OWASP #JSpecity #ThreadSafety #JAVAPRO

[JAVAPRO @JAVAPROmagazin]

📢The #JCON2027 #CallForPapers is extended until Oct 30, 2026! Want to speak on Europe's biggest #Java stages?

Discover the benefits for speakers & submit your talk.

🇬🇧 EN: https://t.co/fg50Nw99PW
🇩🇪 DE: https://t.co/yOwRa9lHs9

#JVM #AI #CFP #CoreJava #Frameworks #JAVAPRO #JUG

[JCON @jcon_conference]

The #IBMTechXchange 2026 starts next Monday in Atlanta and #JCONUSA26 is bringing the #Java #community with it.
Java sessions. Hands-on learning. Community. Plenty of conversations in between.

See you there?
👉 https://t.co/gZ0G9nrYSB

[JAVAPRO @JAVAPROmagazin]

Erst absichern, dann ins Internet! Bei @SvenRuppert läuft eine @vaadin-Anwendung als WAR auf #Jetty – verwaltet durch #SystemD & ausschließlich über 127.0.0.1 erreichbar.

So funktioniert das #Deployment ohne Docker https://t.co/vLVqc7haRy

#Java #Hetzner #Vaadin @Hetzner_Online

[JCON @jcon_conference]

A huge technical #conference doesn’t have to mean losing the #community feeling.
At the #IBMTechXchange 2026, #JCONUSA26 gives #Java people a clear home base, two rooms full of Java content & plenty of opportunities to meet, learn and talk code together.

📅 Oct 26–29
👉 https://t.co/ehnrEwFUlx

[JCON @jcon_conference]

First of all: Thank You ❤️
We’ve received many great submissions for #JCON2027 & really appreciate everyone who submitted.
We’ve also heard from several of you asking for a little more time.
So… you’re getting it! 😉

🎬 Our #CFP is officially extended to October 30

➡️ https://t.co/vQcG06DhEp

[JCON @jcon_conference]

// TODO: Submit #JCON talk

You’ve postponed that #TODO long enough!
The #JCON2027 Call for Papers closes in a few hours.
One #lastchance to take the screen.

➡️ https://t.co/iHjWXN7Frl
#CFP #Java #Conference

[JCON @jcon_conference]

🎬 FINAL CALL.

Today is the last day to #submit your session for #JCON EUROPE 2027.
A lesson. A deep dive. A demo. A workshop. A story the #Java community can learn from.
Don’t leave it sitting in your drafts.

➡️ https://t.co/iHjWXN7Frl
#CFP #JCON2027 #Conference

[JAVAPRO @JAVAPROmagazin]

AI-generated code passes tests. But is it secure? @ArturSkowronski examines what #AI coding benchmarks miss: security flaws, code quality & real-world #Java performance.

See what the scores don't tell you:https://t.co/FRHjr6jzRH

#AI #SonarQube #Brokk #JetBrains @SonarSource

[JAVAPRO @JAVAPROmagazin]

The #JCON2026 keynote with @MarkusKett & Johann Strauss pairs with Gerald Kammerer’s article on scaling #AI with #VectorSearch, #EclipseDataGrid & #Kubernetes.

Watch & read: https://t.co/YeOuItXs1b

Also in #JAVAPRO PDF: https://t.co/UXJWkLVKkY

@EclipseStoreIO #GenAI #LLM #Java

[JAVAPRO @JAVAPROmagazin]

Your encrypted data could be stolen today & decrypted years from now. Sebastian Hempel explains the “harvest now, decrypt later” threat & why #PostQuantumCryptography can't wait for them to arrive.

Find out how to prepare: https://t.co/BpjkZgoYnP

#Java #Security @Cloudflare

[JCON @jcon_conference]

Not “coming soon.”
Not “there’s still plenty of time.”
Tomorrow. 😅
The #JCON2027 Call for Papers closes October 16.
If you’ve been planning to #submit this is the moment.

➡️ https://t.co/iHjWXN7Frl
#CFP #Java #Conference #JCON

[JCON @jcon_conference]

Our track record, in T-shirts: Star Wars, Lord of the Rings, the 90s, Tron.
The #JCON2027 shirt? You can order it now, before we build the design. That's a #blindshirt

👕 https://t.co/WIz7s1PaFD
#JCON #Java #Conference

[JCON @jcon_conference]

A great #conference day doesn’t end when the slides do.
At #JCONUSA26 the #Community Hub is where you can keep the conversation going: meet speakers, #Java Champions, #JUG leaders, developers and architects and ask the question that didn’t fit into the session.

👉 https://t.co/ehnrEwFUlx
#IBMTechXchange

[JAVAPRO @JAVAPROmagazin]

Swapping an ML model shouldn't require weeks of refactoring. If changing a model breaks your business logic, your architecture—not your AI—is the problem. Nikita Golovko shows how #HexagonalArchitecture keeps #SpringBoot ML systems maintainable.

Read: https://t.co/Nh2B3p8uHh