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Architecture & Microservices
34 posts
Do You Still Write Code without Hexagon?
During our training in architecture, we often ask participants if they are familiar with Hexagonal architecture, and it’s…
2: The Jakarta Cliff: Why Modern Java Leaves Struts 1 Behind
This is the second in a series of articles exploring the realities of modernisation. In this article, you’ll…
Beyond UML: Clean Software Architecture in the Age of AI‑Generated Code
Abstract Today we write more code in less time than ever before. AI systems act like permanently available junior…
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…
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…
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.…
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…
Petabyte-Scale AI Memory with Serverless Java
The current wave of Generative AI innovation is built on a paradox. While models are becoming more powerful…
Zero Migration Java – Staying Current Without Breaking Your App
Keeping enterprise Java applications secure and up-to-date is critical but traditional runtime upgrades often come with painful migrations, broken dependencies, and retesting cycles. What if developers could upgrade their runtime without touching their code?
In this article, we explore the concept of zero migration — a runtime model that allows Java applications to stay current with the latest patches and features without requiring code or configuration changes.
High-Performance Vector-Search Grids with Java
The rapid rise of Generative AI has fundamentally changed how modern systems are designed. While much of the…
