Exact Prices in Java: Decimal Strings and BigDecimal Traps
Why double breaks prices, why APIs send them as strings, and the BigDecimal and Jackson traps to avoid when you read, compute and display …
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.
Android on iOS, Web & Desktop Efficiently and for Free
Compile Android apps for iOS, web and desktop with a free, open-source compatibility layer. Try the browser demo, see the iOS binary size …
Java Stream Gatherers: From Built-in Patterns to Custom Pipeline Mechanics
Explore Java Stream Gatherers (JEP 485) from practical built-in patterns like windowing and concurrent mapping to authoring your own custom …
BxPlaywright 1.0: Real Browsers, Fluent BoxLang, Built for AI Agents
BxPlaywright 1.0 brings fluent browser automation, real-browser testing, Playwright MCP, accessibility checks, rendering, and AI-agent …
BoxLang 1.18.0 Released: Every Cloud, Every Node, Every Agent
BoxLang 1.18.0 adds Azure Functions, cluster-safe scheduled tasks, a more automation-friendly CLI, and refreshed docs for developers and AI …
Upgrading from Java 21 to 25: What Actually Breaks
Seven changes between Java 21 and 25 that break builds, startup or behaviour, each reproduced on both JDKs, and how to find them before you …
59 viewsFoojay Podcast #103: Killing Reflection at Build Time with Dmitry Moskalyuk and Shai Almog
A backend data layer and a cross-platform UI framework both moved reflection to build time. Dmitry Moskalyuk and Shai Almog explain why, and …
Lottie4J 1.2.7: A Performance Release
Lottie4J 1.2.7 focuses on performance: image assets are decoded once and cached, track mattes reuse their buffers between frames, and GC …
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 …
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 …