One tip for successful OpenTelemetry projects
Leading your organization to use OpenTelemetry is a challenge. In addition to all the usual project hurdles, you'll face one of these two …
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.
MongoDB Search Score Breakdown
Full-text search powers all of our digital lives — googling for this and that; asking Siri where to find a tasty, nearby dinner; shopping at …
JavaFX Links of March 2026
Here are the JavaFX LinksOfTheMonth of March 2026. You can find the weekly lists on jfx-central.com. Did we miss anything? Is there anything …
Best practices for Mastering AI Agents, Subagents, Skills & MCP
Master AI agents with 5 developer best practices for building scalable architecture with MCP, subagents, context isolation, and guardrails.
1,996 viewsThe Java in Education Catalog Now Has a Beautiful Home
A few weeks ago, Igor De Souza shared Bringing Java Closer to Education: A Community-Driven Initiative here on Foojay. It's something we …
Modeling One-to-Many Relationships in Java with MongoDB
This tutorial walks you through both approaches — embedded documents and references — using plain Java POJOs and the MongoDB Java Sync …
Spring Boot Actuator Health for MicroProfile Developers
This post will help you map your MicroProfile Health knowledge to Spring’s world.
Does Language Still Matter in the Age of AI? Yes — But the Tradeoff Has Changed
I keep hearing the same question in architecture reviews, slack threads, and conference Hallways: "If AI is writing the code, does language …
How We Built a Java AI Agent by Connecting the Dots the Ecosystem Already Had
We built an AI agent runtime in pure Java using Spring AI, Spring Modulith, JobRunr, and Spring Events and called it ClawRunr (aka …
Grails Is Back: Inside the Apache Software Foundation Migration
Grails graduated to a Top-Level Apache project in 2025. Here's what the 18-month migration, Grails 7 release, and Spring Boot alignment mean …