Testing Jakarta EE: Three Layers, Three Tools
A guide to Simon Laden's three-part series on testing Jakarta EE with WeldInitiator, Arquillian and Testcontainers, and the question each …
Week in review: 12 October 2026
New authors
Welcome to Mauro Mura, Somil Garg, Sweety717 and Ted Kupolov, who published their first article on foojay.io this week.
Published this week
Your agents don't need an LLM to negotiate
A manager hands a job to one of three workers, and nothing in the program calls a model. It explains the protocol, and what doesn't survive …
Introduction to Error Prone: How to Catch Bugs at Compile Time
Error Prone plugs into javac to catch code that compiles but is most likely wrong. A tour of its built-in checks, Refaster rules and custom …
One Embedding per Job, or Two? Measuring Semantic Search in a Spring Boot Job Portal
I stored two embeddings for every job in my Spring Boot job portal and measured which one finds the right jobs. One of them barely mattered, …
What I Learned Building an AI Code Reviewer with Java and Spring Boot
What I learned building an AI code-review workflow around GitHub Pull Requests, Spring Boot, and multiple AI providers.
What's New In The October 2026 Azul Payara Release?
Payara Community 7.2026.10 drops the elevated-permissions requirement for SSH nodes, and Azul Payara patches three security issues on every …
Lightweight Spring Boot Monitoring Without Prometheus and Grafana
Monitor Spring Boot applications on a small VPS using Actuator and StatLite, without operating a full Prometheus and Grafana stack.
Scraping websites and bot-protection
The levels of bot protection I met while scraping genealogy sites, from a bare curl to shell-launched Chrome, and how to get past each one.
A Smaller, Faster Java Server with a Spring-Style API
Build a smaller native Java service with Spring-style transactions and dependency injection. Inspect the generated code and compare local …
Apple Shouldn't Dictate Your App's Redesign Schedule
Adopt Xcode 27 without moving your redesign schedule. This week: Liquid Glass, a JPA inspired ORM, OpenTelemetry, WebSockets and push …
Build Your First SaaS with MongoDB Ephemeral Clusters
Provision a MongoDB Atlas Ephemeral Cluster with one API call, then have an AI coding agent build a full-stack Spring Boot and React job …
Pi4J V5.0.0: Work in Progress
What is changing towards Pi4J V5.0.0: a big API cleanup, a simpler Context, parallel ports, RISC-V support, better board detection, and a …
Lottie4J 1.2.7: A Performance Release
Lottie4J 1.2.7 focuses on performance: image assets are decoded once and cached, track mattes reuse their buffers between frames, and GC …