The tests passed. The feature had never worked.
With an AI assistant, the test, the example and the docs may all come from the process that wrote the feature. Two ways to check.
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.
jip: Clone a Java Project. Run It. Done.
A lightweight, pip-inspired dependency manager and runner that makes exploring GitHub Java projects simple, without the usual Maven or …
Streaming Large File Uploads in Java Without Killing Your Server
Spring's @RequestPart cannot stream multipart uploads — not even FilePart. The API that actually does, and the tests that prove it.
Spring AI or LangChain4j? One App, Three Stacks, One Test
The same small AI service in Spring AI, LangChain4j on Spring Boot and on Quarkus, held to one shared test. Where they differ, and where …
Java Patching at Incident Speed: Lessons from the eMudhra CA Compromise
Browsers blocked the compromised eMudhra CA keys in hours. Learn why Java estates lag, and how security-only Java patching cuts testing and …
Spring Boot's Hidden Secret for Configuration: EnvironmentPostProcessor
How to ship default configuration from a shared Spring Boot starter so services can still override it.
From Google Drive to Syncthing over Tailscale
Why my KeePass database left Google Drive, and how Syncthing over a Tailscale mesh syncs it between a Synology NAS, a Mac, an iPhone, and an …
dukehoff-decide: Typed, Calibrated Decisions from Small Language Models
Many LLM calls in Java apps are multiple choice. dukehoff-decide answers them with a small local model and returns a typed value with …
No Quote, No Claim: Making an LLM Show Its Sources in Java
My job portal asks Gemini why a job fits a candidate. Every claim must quote its source, and a few lines of plain Java drop any quote that …
New on Foojay: Television, Statistics, Java Conferences, Coming Soon and Week in Review
Five new pages on foojay.io: Java videos from YouTube, the numbers behind Foojay, a map of Java conferences, a peek at the articles that are …