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When Product Owners Commit Code: Small Steps, Big Impact
Disclaimer: No Product Owners were harmed in the making of this story.Spoiler: They survived. In fact… they thrived. We never planned to tell this story.. and certainly not six years later. Back when it happened, it didn’t feel revolutionary. It felt… practical. A small fix to a small…
LangChain4j Agentic Workflows: From AI Calls to Multi-Agent Systems in Java
You have built AI features into your Java application. Your model is wrapped in a service, RAG is feeding it context, tools are wired, and calls are flowing. It works. Then requirements evolve. A single prompt-and-response is no longer enough. You need steps that follow each other, branches…
From ‘Class Not Found’ to Calm: Practical Shading and Shadowing for Java Apps
Your pipeline is green, the app is deployed, and everything looks fine… until production says “nope”. A request fails and the logs show ClassNotFoundException, or worse, NoSuchMethodError. These are among the most confusing runtime errors because the code compiled successfully,…
Paketo Buildpacks: ready for Java 26 & more!
Paketo Buildpacks, the default way to create container images with Spring Boot, will include support for Java 26 the same week it will be released in major OpenJDK distributions (Oracle, BellSoft Liberica, Azul Zulu, etc.)Let’s take this as an opportunity to (re)discover what Paketo…
The 5 Knights of the MCP Apocalypse
Let’s talk about that new MCP (Model Context Protocol) Server your team is using to connect to your real data services. It’s awesome, right? It’s the “magic box” that gives your AI Agent access to the real world—live databases, internal APIs, and…
06-2026 | Autonomous Java
CORE JAVA▪️Learning Java Automation the SOLID Way: A Beginner’s Guide to Learn Page Object Model with Java SOLID Principles▪️OpenJ9 GC Policies: How to Choose the Right Collector API & FRAMEWORKS▪️Elasticsearch Java SDK: No Magic, Just Solid Design Choices▪️Java Developers, You’re…
API Development: Implementing an HTTP POST/SSE event in Jakarta REST
In this article, we’ll learn how to send messages to a client using Server-Sent Events (SSE) initiated by a client’s persistent HTTP POST connection. 1. What is Server-Sent Events (SSE)? Server-Sent Events (SSE) is a web push technology, based on the HTTP protocol, that allows clients…
From Prototype to Production: Building Safe and Reliable AI Agents with Spring AI and MCP
The AI agent demo works perfectly in the development environment. Your prototype handles natural language queries, executes tool calls, and generates sensible responses. But when stakeholders ask ‘Can we deploy this?’, reality sets in. That question exposes the massive gap…
The Foundations of Data-Oriented Programming in Java
Introduction Java has traditionally been an object-oriented language, urging developers to structure code around objects, encapsulate state and behavior, hide implementation details, and extend functionality through inheritance. This method has advanced modularity and reusability. However,…
1BRC – The First 80% of the Journey
The One Billion Row Challenge (1BRC) started as a way to kill time during the 2023/2024 holidays, asking a simple question: How fast can Java crunch temperature values from a text file and calculate the min, mean, and max per weather station? The catch is that the file contains one billion…
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 learn about: When an Upgrade Isn’t Really an Upgrade In engineering teams, upgrading infrastructure is supposed to feel routine. Treat your system like cattle, not pets,…
Enterprise-grade AI for Java Developers: Behind the Bar of the AI Revolution
There is a moment many Java developers experience today. After years spent building reliable systems, modernizing monoliths, shaping APIs, orchestrating containers, and keeping distributed applications alive, someone suddenly asks whether you can “add a bit of AI.” At first it sounds…
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