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Effective Pattern Matching 2026 Edition
Since Java 14, the Java switch and instanceof statements have been enhanced, in multiple phases, to support pattern matching and a “data-oriented” programming style. In this article, I explore when this programming style is beneficial, and why. I describe the syntax of pattern…
10 Docker Commandos: Docker Commands to Hunt the Predator
Whose day is it on Tuesday? I mean, Wednesday is Odin’s day, Thursday is Thor’s day, and Friday is Frigg’s day, or Freya’s, depending on who you ask. But what about Tuesday? Who is the god of Tuesday? It’s Týr, the god of…
A2A Building Interoperable AI Agents with Java
Why agents need friends? We’ve recently seen a boom in AI “agents”. AI Agents are usually described as a service that talks to an AI model to perform some kind of goal-based operation using tools and context it assumes. But most of these agents are still working in an…
AI without spaghetti: Clean architecture in the age of AI
When “Just ship it” turns into lasagna code We start with a familiar scene: a small experiment that grows faster than its architecture can handle. This is exactly the kind of situation where clean architecture becomes essential. Like layering pasta without checking the recipe, we kept adding…
Java 26 + Spring Boot 4: From Certification Skills to Production-Ready Apps
Most Spring developers don’t fail in production because they forgot an annotation. They fail because the “non-feature” parts of the system were treated as optional: observability that comes too late, security added at the end, data access built under deadline pressure, APIs that can’t evolve…
7 Habits of Highly Effective AI Java Coding
From AI User to AI Pro Let’s be real, AI coding tools are everywhere now. They’re no longer some shiny new toy—they’re a part of our daily grind as developers, just like our morning coffee. For us Java devs, whether we’re wrestling with a giant legacy…
Testing Spring BOOT Applications DEMYSTIFIED
Imagine it’s Friday, 5:00 PM. A pull request appears: a major update to Spring Boot 4. Your CI/CD pipeline turns green. Do you click “Merge” and head home for the weekend, confident that production will survive? For many developers, this “Friday Afternoon…
Bridging Java and Python for AI/ML in Production: The Case for GraalPy on GraalVM
Abstract In the Java stack, tapping into Python’s powerhouse of NLP and AI/ML libraries often means messy inter-process plumbing—until GraalPy changed the game. With GraalVM’s Python runtime embedded directly in your JVM, you can import and run Python libraries like TextBlob for…
Java 25 and the New Age of Performance: Virtual Threads and Beyond
Summary Project Loom continues to reshape how we handle concurrency in the JVM, and Java 25 makes virtual threads more accessible to developers than ever. In this article, we’ll take a closer look at how virtual threads work, how they differ from platform threads, and where they provide the…
Conferences. How and Why
Ever thought of attending a conference, but decided it would be too much effort and overwhelming with so much great content already available online to give it a try? It is even more difficult to decide on attending if you have had a negative experience in the past. My first attempt many…
Jakarta Data and NoSQL – Standardized Data Access for Jakarta EE
The amount of data collected by applications nowadays is growing rapidly. Many of them need to support both relational SQL and non-relational NoSQL databases. Jakarta Data provides an API to allow easy data access. Developers can split the persistence mechanism and the model using common…
Java 25: The tl;dr Version
Here’s a quick, no-fluff rundown of the new features landing in Java 25. JDK 25 packs 18 new features: 12 delivered, 4 in preview, 1 experimental, and 1 incubator. In this article, we’ll walk through all of them, show live code examples you can run immediately, and highlight 🪄 the most…
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