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 …
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.
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 …
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 …
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 …
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.
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.
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 …
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.
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, …
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 …