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Virtual Threads Meet AI: Java Concurrency in the Age of Intelligent Systems
AI workloads change how Java applications scale and behave. This article explains how Java 26 and virtual threads simplify concurrency in AI-heavy systems, replacing complex reactive setups with clearer and more efficient designs. It shows when virtual threads outperform traditional async…
JCON EUROPE 2026: Why the Java Community Still Meets in Person
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…
05-2026 | From AI as a Feature to AI as Infrastructure
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…
Unlocking Developer Productivity with Java 25: Features You’ll Actually Use
Summary Java 25 features for developers bring practical enhancements you can use daily. From improved switch expressions and record patterns to simplified error handling, these Java 25 features reduce boilerplate, improve clarity, and simplify your code. Discover practical, real-world…
From Spaghetti to Hexagons: A Practical Guide to Clean Java Architecture
A Culinary Warning and the Dark Side of Code Welcome, fellow architect and beloved developer, to our hexagonal city-state—a realm where pragmatism reigns supreme and flexibility is our greatest strength. This guide is not an ivory tower doctrine filled with theoretical perfection, but rather…
Destructoring is the future of Javas Encapsulation
Encapsulation in Java has been broken since the Java Development Kit (JDK) 5. Objects should guarantee that their inner state matches what we cast into code, but at runtime any private and final state can be set from the outside to any value — bypassing any checks and asserts. This is…
Open-Core with Core Java and Vaadin — Part 2
Editions, runtime, and quality assurance. All source code presented here is published on GitHub and available at https://3g3.eu/naityh. Recap of part one The first part of this article developed the abstract mechanics of the open-core application. From two independent Maven projects with…
Open-Core with Core Java and Vaadin — Part 1
Architecture, extension API, and Vaadin integration. 1. Introduction and motivation The open-core model is often reduced in discussion to questions of licensing or commercial positioning. An open-source variant of a piece of software is complemented by a commercially distributed variant that…
OpenJ9 GC Policies: How to Choose the Right Collector
For many OpenJ9 users, garbage collection tuning starts with the wrong question. They ask, “Which collector is the fastest?” or “Which one is best for cloud?” In practice, the better question is: what does my application actually need from the heap? That is the right…
Will AI Replace Me? Understanding Our Value in the AI Era
If you tried to keep up with all the content that’s flooding the internet on the topic of “Will AI replace software developers?”, you’d probably found a new full-time job. Social media posts, vlogs or entire channels, even CTO keynotes… not a day goes by without new content. This article…
Vaadin + Quarkus: The New Approach for Enterprise Apps
While Vaadin is commonly integrated with Spring, this article explores a powerful new full-stack solution: Vaadin with Quarkus. Quarkus provides a lightning-fast runtime and native images, complementing Vaadin’s Java-first UI, which eliminates JavaScript complexity. Readers will learn how to…
OpenFeature – one flag to rule them all!
Feature flags and where to find them What are feature flags? To keep it simple it’s a way to change the system behaviour at runtime without hassle. Note: And if this “refresher” was the only theoretical thing you wanted to know or if you already use feature flags and want…
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