JAVAPRO on JAVAPRO International

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Tue, 30 Jun 2026 08:50:00 +0000

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Download free PDF here: Edition 06/2026 | Autonomous Java

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Thu, 28 May 2026 12:00:00 +0000

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‘From AI as a Feature to AI as Infrastructure’ – download free PDF here!

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Tue, 28 Apr 2026 12:00:02 +0000

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Download free PDF here: Edition 04/2026 | Java in the Age of AI

Fresh off the Press: Free JAVAPRO Special Edition at JCON 2026 – PDF Coming Soon

Wed, 22 Apr 2026 09:39:35 +0000

The new issue of JAVAPRO – “Java in the Age of AI” Special Edition has arrived at JCON 2026. Conference attendees can pick up a freshly printed copy for free, exclusively available in the Coffee Area. The print run is limited—so if you want to secure a copy, don’t wait too long.

With this special edition, JAVAPRO places a strong focus on the future of the Java ecosystem in the context of artificial intelligence. The magazine brings together high-quality articles on topics such as AI agents with Java and Spring, vector databases, microservices architectures, performance optimization, as well as security and supply chain stability. It is further enriched with practical insights into modern frameworks, new JVM trends, and innovative approaches to data access.

Caching and Beyond: Smarter Data Processing with Java - in 2 Hours

Thu, 02 Apr 2026 11:45:01 +0000

Many Java teams start simple — a single database, a straightforward architecture. But as systems evolve, so does the stack: caching layers to improve performance, search engines for faster queries, additional databases for specialized use cases, and now vector stores for AI-driven features.

What begins as optimization often turns into a fragmented landscape of technologies. The result: increasing complexity, higher infrastructure costs, and growing DevOps overhead.

The session “Caching and Beyond – Smarter Data Processing with Java” at JCON EUROPE takes a different approach. Instead of adding more tools, it focuses on simplifying data architectures — using a clean, Java-centric model built on open-source technologies.

Free Java Training Videos Now Available: From Fundamentals to Modern Frameworks

Wed, 01 Apr 2026 12:00:01 +0000

A comprehensive collection of Java training videos is now publicly available, offering developers valuable insights into modern backend technologies and frameworks.

The playlists cover key topics including Spring Boot, Quarkus, Helidon, Payara, EclipseStore, and MicroStream, providing both a strong foundation and deeper technical understanding. The content is designed for developers at all levels—from those starting with modern Java frameworks to experienced engineers looking to refine their expertise.

Structured Learning Across the Java Ecosystem

Rather than presenting isolated tutorials, the playlists follow a structured approach that helps developers build a coherent understanding of essential concepts such as dependency injection, microservices architecture, data persistence, and performance optimization.

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Thu, 26 Mar 2026 12:05:02 +0000

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‘From Coder To System Designer’ – download free PDF here!

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Mon, 23 Feb 2026 12:20:13 +0000

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Download free PDF here: Edition 02/2026 | Engineering Intelligence - Building Systems in the AI Age

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Tue, 03 Feb 2026 11:54:17 +0000

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‘Agentic AI Meets Java’ – download free PDF here!

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Mon, 29 Dec 2025 08:00:01 +0000

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Download free PDF here: Edition 06/2025 | Modern Software Systems on the JVM

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Tue, 09 Dec 2025 10:37:19 +0000

Have You Enjoyed the Previous Part of Our Special Edition ‘Java 25’?
Now Part 2 is here — and it’s packed with even more expert insights, community voices, and Java highlights from the past 30 years & the Java 25 release.

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.

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Tue, 28 Oct 2025 14:12:51 +0000

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“Java 25 Special Edition” - download free PDF here!

Call for Papers for JCON EUROPE 2026 Extended Until October 24

Mon, 13 Oct 2025 17:54:40 +0000

The Call for Papers (CFP) for JCON EUROPE 2026 has been extended by two weeks. The new deadline for submissions is Friday, October 24, 2025 (23:59 UTC+2).

The extension gives potential speakers more time to finalize their proposals for the next edition of Europe’s leading community-driven Java conference. JCON EUROPE will take place April 20–23, 2026, once again at the Cinedom in Cologne – a venue known for its cinema-sized screens and vibrant hallway track atmosphere.

Always Up to Date - with Every New Free PDF Edition!

Tue, 30 Sep 2025 12:24:30 +0000

Have You Enjoyed the Previous Parts of Our Special Edition ‘30 Years of Java’?
Now Part 3 2|2 is here — and it’s packed with even more expert insights, community voices, and Java highlights from the past 30 years.

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Wed, 24 Sep 2025 07:00:03 +0000

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“30 Years Of Java - Part 3 1|2” - download free PDF here!

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Tue, 05 Aug 2025 07:45:01 +0000

Did You Love Part 1 of Our “30 Years of Java” Special Issue?
Now Part 2 is here — and it’s packed with even more expert insights, community voices, and Java highlights from the past 30 years.

Don’t Want to Miss a Thing?
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JAVAPRO Magazine Java 25 Special Edition - Call for Papers

Mon, 14 Jul 2025 18:47:34 +0000

CfP is Open until: July 31, 2025 | Deadline for article submission: August 25, 2025 | Publishing: in October \

Calling all Java Enthusiasts!

We received overwhelming feedback on our Edition “30 Years of Java”. As announced, we will produce parts #2 and #3, publishing additional articles that were not part of the first issue.

One suggestion particularly excited us, and we would now like to realize it:
Producing a JAVAPRO printed special edition for every new Java version, starting with “Java 25” in October.

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Fri, 06 Jun 2025 08:33:47 +0000

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“30 Years Of Java” - download PDF here!

IBM Architect Mark Stoodley Reveals JVM Optimization Techniques

Wed, 07 May 2025 10:17:14 +0000

Slow Java startups, repeated JIT compilations, high CPU load: these factors are not just performance issues — they also drive up infrastructure costs and increase the energy consumption of applications. At JCON EUROPE 2025, developers will have a rare opportunity: Mark Stoodley, Chief Architect for Java at IBM, travels from Canada to personally lead an exclusive workshop. The title: “Ultra Efficient Startup for Production Java Workloads” — a hands-on format demonstrating how to run JVM-based production applications more efficiently, faster, and with lower resource consumption.

Optimizing Java Performance: Caching with Core Java Instead of Complex Frameworks

Mon, 05 May 2025 07:00:02 +0000

Slow Java applications are a well-known problem in many projects: delays caused by ORM, complicated caching structures, and overloaded databases slow down performance. At JCON EUROPE 2025, the two-hour workshop “High-Performance Caching with Pure Java: Supercharge Your Sluggy Database Application” will show how to specifically solve these problems — exclusively with Core Java, without additional frameworks or cloud services.

Hands-on: Caching and Queries at Maximum Speed

Participants will learn how to develop a high-performance caching and query layer themselves — lean, memory-efficient, and directly in Java. The goal is to eliminate typical performance bottlenecks in database-based applications and increase system speed many times over.

Local AI with Java: AI Integration Without Cloud Dependency

Fri, 02 May 2025 07:00:03 +0000

The future of artificial intelligence is local. Increasingly, companies are turning to local AI models to ensure data privacy, offline capabilities, and independence from cloud providers. At JCON EUROPE 2025, the two-hour “AI-based optimization in expedition planning – a practice-oriented workshop” with Sven Ruppert will demonstrate exactly how to implement this in Java: high-performance, privacy-friendly AI features – directly in your own application, entirely without cloud services.

Focus on the Open-Source Project “Expedition Planner”

At the center is the open-source project “Expedition Planner”, a Java-based web application designed for planning and organizing expeditions. However, this isn’t just theory: participants will work on real-world use cases, integrating local AI models with Ollama, utilizing Langchain4j and Retrieval Augmented Generation (RAG) to optimize task planning and equipment lists intelligently.

Gen-AI with Java: Build an Intelligent Chat Assistant in Just Two Hours

Wed, 30 Apr 2025 12:17:30 +0000

Generative AI is no longer limited to research labs – it’s ready for real-world application. At JCON EUROPE 2025, Java developers will have the opportunity to experience exactly that: In a two-hour workshop, participants will learn how to build an intelligent chat assistant from scratch using Helidon and LangChain4J – practical, production-ready, and Java-first.

From Concept to Working Application

The hands-on session “Build an AI-Powered Application with Helidon and LangChain4J” focuses on direct implementation: no slides, no theory – just real code, modern tools, and comprehensible architectures. The goal is to create a functional Gen-AI-powered chat assistant that not only works as a demo but can also be expanded into real-world projects.

Dynamic Caching for Massive Workloads: Pure Java Solutions First-Hand

Tue, 29 Apr 2025 08:54:00 +0000

Many Java developers encounter the limitations of traditional caching and database solutions when dealing with large amounts of data and dynamically growing workloads. Heavyweight systems often prevent flexible scaling or unnecessarily increase infrastructure costs.

The session "High-Performance Caching with Pure Java – Part 2: Managing Gigantic Workloads" at JCON EUROPE 2025 presents an approach that does things differently: Instead of complex architectures, this approach relies on pure Java – lean, scalable, and powerfull.

JUnit 5: Eight Years of Innovation – Many Java Developers Are Falling Behind

Mon, 28 Apr 2025 12:23:46 +0000

In many projects, JUnit is still used the way it was years ago — without taking advantage of the relevant innovations introduced in recent releases. Yet JUnit 5 has evolved significantly since its initial release: over eight years and twelve major updates, it has become a powerful, flexible, and extensible testing platform.

The JUnit 5 Revolution: First-Hand Insights

At JCON EUROPE 2025, developers will have the opportunity to not only discover the latest features of JUnit 5 but also to apply them directly. In the two-hour hands-on session "Catching up with JUnit 5", two key members of the JUnit team will guide participants through the most important developments.

Goodbye to ORM Pain: EclipseStore Hands-On with the Lead of the Open-Source Project

Thu, 24 Apr 2025 12:19:17 +0000

Many Java developers are all too familiar with the downsides of traditional ORM frameworks: performance bottlenecks under scale, complex serialization, and recurring issues when refactoring persistent object models. If you’re looking for a modern, high-performance alternative, EclipseStore deserves a closer look – and not just in theory, but in practice.

Experience EclipseStore in Action – Led by a Core Contributor

At this year’s JCON EUROPE 2025, you’ll have a unique opportunity to get hands-on with EclipseStore. Florian Habermann, CTO of MicroStream Software and a core contributor to EclipseStore, is hosting a two-hour practical workshop. Rather than sitting through slides, participants will actively code – in their own IDEs, with Java, and against production-relevant use cases.

High-Demand Workshops at JCON EUROPE 2025 – Tickets Available Now

Thu, 10 Apr 2025 07:00:03 +0000

Cologne – JCON EUROPE returns to its venue from May 12–15, once again offering an extensive program for Java enthusiasts. In addition to over 100 speakers and sessions, Monday, May 12 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.

JCON EUROPE 2025: Live Coding, Networking & Community-Highlights

Tue, 08 Apr 2025 10:00:01 +0000

4 Days | 100+ Speaker | 100+ Sessions | 9 Workshops | In-Person

JCON EUROPE 2025 returns as one of the leading Java community events in Europe. Last year’s edition welcomed participants from 56 countries across six continents. The 10th edition will not only feature a packed schedule of technical sessions and live coding formats, but will also place a stronger emphasis on personal exchange and community interaction. Several curated networking formats will complement the conference program, offering attendees direct access to speakers, experts, and peers.

Free Tickets for JCON EUROPE 2025

Thu, 27 Mar 2025 17:13:21 +0000

4 Days | 100+ Speaker | 100+ Sessions | In-Person

The Ultimate Java Experience on The Big Screen!

JCON EUROPE 2025 is returning to the big cinema screen from May 12th - 15th, 2025! Join JCON for a top-tier Java conference featuring four parallel tracks, hands-on workshops, and a vibrant international Java community.

📅 Monday, May 12th – Big Workshop Day
📅 Main Conference: May 13th - 15th – Deep-dive sessions, live coding & networking
📅 VIP Event: May 14th – Exclusive gathering with Java experts
🍻 Happy Hour: May 13th - 14th – Unwind and network with fellow developers

JAVAPRO is back

Sat, 25 May 2024 10:02:29 +0000

Welcome to JAVAPRO. JAVAPRO is a free printed and online magazine for Java developers. JAVAPRO is all about professional programming with Java. Main topics are Core Java, Java libraries and frameworks, architecture, microservices, JVM languages, cloud and serverless computing with Java, UI development, but also testing and quality, continuous integration and continuous delivery, agile, and of course AI with Java.

Our content is written by external authors from the global Java community who are Java experts and love to share their Java expertise with our awesome community. JAVAPRO is also owner of the JCON conference brand and organizer of the popular Java conferences JCON WORLD ONLINE and JCON EUROPE in Cologne, Germany, in collaboration with the Java User Group Oberpfalz. Both conferences are free of charge for all Java User Group members worldwide. That’s why more than 50 Java User Groups are JCON partner JUGs. We are also supporting Java User Groups who want to organize their own local JCON conference such as JCON Slovenia. Impressions from JCON EUROPE 2024: https://www.flickr.com/photos/jcon-conference. More information: www.jcon.one.