Geertjan Wielenga
732 viewsDuckDB in Spring Batch: Replace In-Memory Java Loops with One SQL Statement
Spring Batch jobs usually follow the same pattern: an ItemReader streams rows, an ItemProcessor transforms each one, and an ItemWriter …
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Every article on foojay.io, newest first: OpenJDK, the JVM, Java tooling and the ecosystem around them, written by the Java community.
Geertjan Wielenga
732 views
Otavio Santana
545 viewsIntroduction to Retrieval-Augmented Generation with Java and MongoDB
Modern organizations store large volumes of information in documents, databases, internal platforms, support systems, policies, and …
Shai Almog
499 viewsPush V3: One Message From Your Server to Every Surface
Codename One Push V3 adds typed messages, managed credentials, segmentation, analytics, and Surface updates. Existing push apps should test …
Geertjan Wielenga
699 viewsEmbedding DuckDB in a Maven App (and Using It for Things That Aren't Databases)
DuckDB is described as "SQLite for analytics," which is true: it's an in-process database engine that runs inside your application, with no …
Frank Delporte
380 viewsSheetmusic4J 0.0.3: ABC Notation, Guitar Pro, Engraving Improvements
Last week I introduced Sheetmusic4J, a Java(FX) library to render and interact with sheet music. That first 0.0.1 release was really a …
Dominika Tasarz
930 viewsJakarta Agentic AI Hits Its First Milestone
Jakarta Agentic AI hits its first milestone - 1.0.0-M1 is live on Maven Central, with a draft spec defining annotation-driven AI agents for …
Youssef Ben Henda
2,032 viewsIdempotent Spring Boot: Safe REST with One Annotation
An idempotent Spring Boot starter that replays duplicate requests instead of re-executing them. One annotation, Redis or JDBC, atomic …
Shai Almog
557 viewsThe Codename One JavaScript Port Is Now Free and Open Source
Codename One's JavaScript port is now open source, available on every plan, and buildable locally without an account. ParparVM is the …
Nicolas Frankel
2 viewsGitHub agentic workflows and Renovate
I've been a big fan of Renovate for a couple of years already. Renovate scans your repositories, detects outdated package versions, and …
Frank Delporte
536 viewsJavaFX Links of July 2026
Here are the JavaFX LinksOfTheMonth of July 2026. You can find the weekly lists on jfx-central.com. Did we miss anything? Is there anything …