JCON EUROPE on JAVAPRO International

JCON EUROPE 2026: Why the Java Community Still Meets in Person

Mon, 01 Jun 2026 07:00:00 +0000

Every year, when we start planning JCON EUROPE, one question always guides us:

How do we create a conference that developers genuinely enjoy attending?

Not just another event with slides and sponsor booths. Not a place where people passively consume information and leave. We wanted to create an environment where developers actively connect, discuss, challenge ideas, and solve real-world problems together.

Looking back at JCON EUROPE 2026, I believe this spirit was visible everywhere.

05-2026 | From AI as a Feature to AI as Infrastructure

Thu, 28 May 2026 10:41:04 +0000

DOWNLOAD

JCON
▪️JCON Europe 2026: Why the Java Community Still Meets in Person

CORE JAVA
▪️Java 26 Is Boring
▪️Structured Concurrency in Java 26 (JEP 525 Deep Dive)
▪️Are the Classic Design Patterns Still Valid with Modern Java?

API & FRAMEWORKS
▪️The Gen AI Iceberg – Java Tooling Edition
▪️Building AI-Driven Java Systems with Spring AI and Java 26
▪️LangChain4j Agentic Workflows: From AI Calls to Multi-Agent Systems in Java

04-2026 | Java in the Age of AI - Special Edition

Mon, 27 Apr 2026 12:50:36 +0000

DOWNLOAD

JCON
▪️A Big Screen Experience for Java Developers & Architects

CORE JAVA
▪️A Big Screen Experience for Java Developers & Architects
▪️Effective Pattern Matching 2026 Edition
▪️Data Oriented Programming with Java
▪️Java 26 adopts HTTP/3 with the Evolution of the HttpClient
▪️Java 26 GC: Making Data Streaming Faster and More Reliable in Containers
▪️1BRC – The First 80%
▪️Building GPU Accelerated LLM Inference Libraries with TornadoVM
▪️Reactor Has Died, Long Live REACTOR!

Take Control of GenAI — Without Compromising Your Data

Thu, 09 Apr 2026 11:50:02 +0000

Most GenAI demos look impressive — until data protection becomes a blocker.

Suddenly, you’re dealing with external APIs, unclear data flows, and compliance risks that slow everything down or stop projects entirely.

But what if you could build GenAI systems without any of that?

In this hands-on JCON EUROPE 2026 workshop, “Building Secure, Self-Hosted RAG Systems in Java”, you’ll explore how a fully local, self-hosted RAG system can be implemented — using Java and technologies you fully control.

Architect Your Own Experience: Creating Your Individual JCON 2026 Journey

Tue, 31 Mar 2026 12:00:03 +0000

The JCON EUROPE 2026, taking place from April 20 to 23 at the Cinedom Multiplex Cinema in Cologne, consistently focuses on a format that offers participants maximum flexibility. Instead of a fixed schedule, the individual design of one’s own conference experience takes center stage.

With a wide range of sessions, formats, and networking opportunities, visitors can decide for themselves which content, conversations, and contacts they want to focus on.

The central foundation for this is the JCON Schedule: participants can create their personal agenda, bookmark relevant sessions, and organize targeted 1:1 meetings with speakers or exhibitors. This turns the conference into something that is not just consumed, but actively shaped—depending on individual interests, projects, and professional priorities.

03-2026 | From Coder to System Designer

Thu, 26 Mar 2026 11:50:02 +0000

DOWNLOAD

JCON
▪️Architect Your Own Experience: Creating Your Individual JCON 2026 Journey

CORE JAVA
▪️The Foundations of Data-Oriented Programming in Java
▪️Lazy Constants in Java 26: Deferred Immutability and JVM Trust
▪️Final Is No Longer a Hint in Java 26
▪️Java 26 in Practice: How the JVM Is Changing the Way We Write Code
▪️Reverse Engineering Java: Backtracking Native Crashes

API & FRAMEWORKS
▪️Paketo Buildpacks: Ready for Java 26 & More!
▪️Stop Writing YAML: How to Define, Test, and Deploy Your Cloud in Pure Java
▪️Beyond REST: Rethinking APIs with GraphQL and Java
▪️Solving Spring AI’s UI Challenge with AG-UI’s Java SDK

High-Demand Workshops at JCON EUROPE 2026 – Tickets Available Now

Mon, 16 Mar 2026 12:00:01 +0000

Cologne – JCON EUROPE returns to its venue from April 20-23, once again offering an extensive program for Java enthusiasts. In addition to over 100 speakers and sessions, Monday, April 20, is fully dedicated to hands-on, expert-led workshops.

Each workshop is a two-hour deep dive into cutting-edge technologies and real-world development topics. Participants can choose from a total of seven different sessions across two time slots: 1:00–3:00 PM and 4:00–6:00 PM. A coffee break in between provides room for informal networking.

Engineering Intelligence Live: JAVAPRO Benefits for JCON 2026

Wed, 25 Feb 2026 12:00:02 +0000

JCON EUROPE 2026 is coming back to Cologne — and this year brings two major highlights right from the start: a brand-new Premium Track AI focused on production-ready AI for Java teams, and free conference tickets for JAVAPRO readers and authors.

From April 20–23, 2026, the European Java community will once again gather at the Cinedom multiplex cinema, turning one of Germany’s largest movie theaters into a four-day Java experience on the big screen.

02-2026 | Engineering Intelligence

Mon, 23 Feb 2026 11:07:31 +0000

DOWNLOAD

JCON
▪️Engineering Intelligence Live: JAVAPRO Benefits for JCON 2026

CORE JAVA
▪️Building Low-Latency Event Pipelines With Java 25
▪️Achieving Microsecond Latencies With Java: Practical Techniques for Building Ultra-Fast Systems

API & FRAMEWORKS
▪️API Development: Implementing POST and SSE Events in Jakarta REST
▪️Open J Proxy: A Modern Open-Source Approach to Database Connectivity for the Java Ecosystem
▪️From Tables to JSON: Handling Unstructured Data in RDBMS Systems With Spring Boot
▪️Java 26 and Spring Boot 4: From Certification Skills to Production-Ready Applications
▪️From Cron to Carbon and Cost-Aware: Modernizing Java Background Jobs
▪️Why Struts 1.3 Still Matters in 2026
▪️The Jakarta Cliff: Why Modern Java Leaves Struts 1 Behind

JCON Meets Enterprise AI - From Basics to Production

Thu, 29 Jan 2026 12:00:01 +0000

From April 20–23, 2026, the European Java community will once again gather in Cologne for JCON EUROPE 2026. Taking place at the Cinedom multiplex cinema, the conference brings together developers, architects, and Java enthusiasts for four days of knowledge sharing, inspiration, and real-world experience — all on the big screen.

Under the motto “Big screen. Big community. Big AI.”, JCON EUROPE 2026 offers an in-person program running daily from 9:00 to 18:00 (CEST), combining technical depth with a strong community focus.

JCON EUROPE 2026: Early Bird Ends in Two Weeks — Full Schedule Online

Wed, 21 Jan 2026 10:00:02 +0000

With JCON EUROPE 2026 approaching, the Early Bird ticket phase is about to close — leaving attendees only around two weeks to secure discounted passes. The Early Bird offer runs until January 31, 2026 (23:59, UTC+1) and includes 20% off all conference passes. JCON EUROPE 2026 will take place April 20–23, 2026 at Cinedom Cologne.

For planning purposes, the session schedule is already available online:
https://schedule.jcon.one/2026/

Four Days of Java, Architecture, and Community

The event kicks off with workshops on Monday, April 20, starting at 13:00, followed by three full conference days featuring practical Java deep dives, architecture insights, hands-on demos, mentoring opportunities, and plenty of hallway-track networking. Organizers have also announced a mid-week VIP party.

JAVAPRO Magazine JCON & Java 26 Special Edition - Call for Papers

Tue, 11 Nov 2025 12:00:00 +0000

CfP is Open until: November 28, 2025 | Deadline for article submission: January 16, 2026 | Publishing: in April \

Calling all Java Enthusiasts!

After the huge response to our print specials “30 Years of Java” and “Java 25”, we’re now preparing a brand-new edition for JCON EUROPE 2026.

To mark the release of Java 26, we’re publishing a limited JAVAPRO print special that combines standout JCON content with the key innovations in and around Java 26.