Transactions and ThreadLocal in Spring
Though I used Spring transactions a lot via the @Transactional annotation, I never opened thought about looking at their implementation.
Friends Of OpenJDK Today
Every article on foojay.io, newest first: OpenJDK, the JVM, Java tooling and the ecosystem around them, written by the Java community.
Foojay Podcast #80: AI4Devs Interviews - Part 2
This is part 2 of the interviews recorded on September 19th, 2025, at the first AI4Devs conference in Amsterdam. In Part 1, we explored many …
Testing the untestable
I'm currently working on a software designed more than a decade ago. It offers a plugin architecture: you can develop a plugin whose …
On dependencies in objects
In OOP, objects collaborate. The initial idea of collaboration, first found in Smalltalk, was for object A to send a message to object B. …
Beyond Keywords: Implementing Semantic Search in Java With Spring Data (Part 1)
Have you ever tried to search for something such as a product, a song, or a movie but couldn’t quite remember its exact name? Maybe you …
How Chat Memory Manipulation Can Ruin Your AI System
Did you know that by tampering with chat history, you're able to make LLMs respond and execute functions that are out of policy?
7 habits of Highly Effective Java Coding
Habits to work with the AI to write code that's actually good—solid, secure, and won't give the next person on your team a headache or your …
The Cost of Not Knowing MongoDB (Part 1)
The primary focus of this series is to show how much performance you can gain, and as a consequence, the cost you can save when using …
JC-AI Newsletter #7
Fourteen days have passed, and it is time to present a fresh collection of readings that could influence developments in the field of …
What Happens When 10,000 JVMs Collaborate
By making one change, using Azul Platform Prime enhanced by Optimizer Hub, a global enterprise improved application responsiveness and …