Setting Up a DuckDB Quack Server: A Hello World
A step-by-step hello world for the Quack remote protocol in DuckDB 2.0: start a server in one terminal, connect from another, and read your …
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.
RuleBox 2.0: Business Rules Without the Business Logic Mess
RuleBox 2.0 brings readable business rules, rules as data, dry runs, audit trails, metrics, and a visualizer to BoxLang and ColdBox …
Flutter Better in Java
Codename One now builds Flutter apps from their Dart source, and the result starts faster and uses less memory than Flutter's own release …
Checking Module Boundaries in a Java Monolith
Use an ArchUnit test to check a Java module boundary, examine a violation and move the dependency behind the module's API.
Cloud-Agnostic Java Microservices with Halyx: One Jar on AWS, Azure and Google Cloud
Build a Java microservice once and deploy it to AWS, Azure or Google Cloud by configuration, with no cloud SDK in your code.
Beyond mvn install: Maven Practices That Pay Off
Fail fast, pin every version, let profiles switch themselves and get an SBOM for free: practical Maven techniques from POMs in daily use.
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.
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 …