New on Foojay Today :foojay: @frankdelporte explains what is coming in Pi4J V5.0.0. There is no release date yet, but main already has about 300 commits.
Highlights: a leaner core, one clear way to create IO instances, fallback to mocks, a new ParallelPort IO type, and RISC-V support.
Snapshots are available to try. Feedback welcome.
New on :foojay: Foojay: Shai Almog ( @debugagent ) explains how a Spring-style API can run as a small native Java server.
In a two-core Linux test, the CN1 Bench handler is 5.17 MiB and reaches its first verified response in 14.8 ms. The same two endpoints in Spring/GraalVM take 88.31 MiB and 43.6 ms.
The comparison covers HTTP stacks only, and the backend is still a work in progress.
New on :foojay: Foojay: @debugagent explains how Codename One lets you decide when to adopt Apple's new iOS look. Xcode 27 is selectable with the ios.xcode_version hint, and the theme is a separate choice from the SDK.
The release also adds a JPA inspired ORM, OpenTelemetry and WebSocket support for Java backends.
New on :foojay: Foojay: Tim Kelly explains how to build a job-application tracker SaaS with a MongoDB Atlas Ephemeral Cluster.
One API call gives an agent a live database. Build a Kanban board with Spring Boot and React, then claim the cluster in Atlas if the prototype is worth keeping.
Ephemeral clusters stay active for 48 hours and can be claimed for 7 days.
https://foojay.io/today/build-your-first-saas-with-mongodb-ephemeral-clusters/
New on :foojay: Foojay Today: Ted Kupolov explains how to monitor a few Spring Boot apps on a small VPS without Prometheus and Grafana.
StatLite reads the Actuator and Micrometer data you already have and shows health, errors, latency, memory, uptime, and restarts. It's a single Go binary with SQLite storage.
The article also covers when a bigger platform is the better choice.
New on :foojay: Foojay Today: Nicolas Frankel @frankel explains the levels of bot protection he met while searching for his ancestors online.
He covers what works at each level, from simple curl options (User-Agent, Referer, cookies) to JavaScript checks like Anubis and Cloudflare, up to headless browser detection and why a headed browser with Playwright often helps.
Scrape responsibly.
New on :foojay: Foojay: Dominika Tasarz (@PayaraCommunity) explains what's in the October 2026 Azul Payara release.
Payara Community 7.2026.10 brings SSH nodes without elevated permissions, plus the new delete-jvm-option and delete-system-properties commands. Azul Payara ships three security fixes across all branches.
https://foojay.io/today/whats-new-in-the-october-2026-azul-payara-release/
Sweety717 explains building CodeGuard AI, a self-hosted GitHub PR reviewer with Java and Spring Boot. The LLM call is the easy part. The real work is the context and findings around it.
https://foojay.io/today/what-i-learned-building-an-ai-code-reviewer-with-java-spring-boot/
New on Foojay: Somil Garg adds semantic search to a Spring Boot job portal and tests whether two embeddings per job beat one. His eval harness produced one surprising number.
Catch bugs before they reach production! @hakdogan explains how Error Prone plugs into the Java compiler to find issues that follow language rules but are likely wrong.
Unlike traditional static analysis tools, Error Prone runs inside javac and can suggest fixes automatically. Google uses it on their entire Java codebase, and it's adopted by Spring Framework 7, Caffeine, and others.
https://foojay.io/today/introduction-to-error-prone-how-to-catch-bugs-at-compile-time/
#Java #ErrorProne #StaticAnalysis :foojay:
Testing #JakartaEE apps is tricky: mock everything and tests prove little, deploy everything and they're too slow to run during development.
Simon Laden's three-part series shows how WeldInitiator, Arquillian, and Testcontainers each solve different #testing challenges. All parts use the same example project running on Azul Payara Micro.
The key insight: these tools are layers, not alternatives. Use them together for effective testing.
https://foojay.io/today/testing-jakarta-ee-three-layers-three-tools/
Mauro Mura shows how agents can negotiate effectively without relying on LLMs. Sometimes simpler approaches work better than complex AI models.
Read the full article on :foojay: Foojay:
https://foojay.io/today/your-agents-dont-need-an-llm-to-negotiate/
We're supporting OCX27 and jChampions Conference 2027 as a media partner!
@frankdelporte shares the details about these upcoming Java community events and how :foojay: will be involved.
https://foojay.io/today/media-partner-for-ocx27-and-jchampions-conference/
WordPress causing you headaches? Andy Damevin shares practical advice on when to stick with it and when it might be time to consider alternatives.
https://foojay.io/today/keep-wordpress-if-youre-looking-for-trouble/
:foojay: #WordPress #WebDevelopment #CMS
Sometimes you end up building what you swore you wouldn't. @debugagent explains how their team created a new Java server despite their initial resistance, and what made them change their minds.
https://foojay.io/today/why-another-java-server/
:foojay:
Luis Majano introduces cbGenesis, an AI-native starter template for ColdBox applications built on BoxLang. This new tool integrates AI capabilities directly into your development workflow, making it easier to build modern applications.
Check out the full article on :foojay: Foojay:
https://foojay.io/today/introducing-cbgenesis-ai-native-coldbox-starter-for-boxlang/
Learn how to build, test, and install agent skills with this practical guide by Maks Danylenko.
Get hands-on with tools and techniques to create effective AI agent capabilities.
https://foojay.io/today/how-to-create-test-install-agent-skills/
#AI #AgentSkills #Java :foojay:
A bit late, but here is the new #JavaFX #LinksOfTheWeek, published on https://www.jfx-central.com/links on October 9.
Thanks to Mike (Klunk), Libán Bande González, afparks, and @foojay
Happy reading, and have a lovely #Java weekend!
try.boxlang.io now lets you test any BoxLang version in your browser, with or without CFML compatibility. Switch between versions, run code samples, and see what BoxLang can do without installing anything. By Luis Majano.
Ever feel like your build scripts are just repeating what you already wrote in your code? Jenesis flips that around - it generates Java code from your existing build definitions.
Rafael Winterhalter explains how it works and why it might change how you think about code generation.