Cristobal EscobarBoxLang 1.17.0 Released: Module Inception, CLI Checker, Jar Loading and much more!
BoxLang has always been an extensible language. As of 1.17.0, it is a hierarchically extensible one. Modules can now contain other modules; …
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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.
Dominika Tasarz
2 viewsWhat's New In The September 2026 Azul Payara Release?
MicroProfile 7.1 lands on the commercial lines, OpenTracing is removed, and Jakarta Agentic AI reaches Payara Micro in the September Azul …
Viktoria Evdokimova
1 viewsCan You Explain the Diff Your AI Agent Just Wrote?
Every Java developer has been in a code review where the question is simple: What does this method do? The answer used to tell you …
Ricardo MelloHow I Built an AI Assistant for My Career with Java, Spring AI, and MongoDB
How one developer built a personal AI assistant in Java using Spring AI, MongoDB Vector Search, conversation memory, and tool calling with …
Hanno Embregts
1 viewsHello Java 27! Have You Been Working Out?
Java 27 is like that friend that you haven't seen all summer, and when you finally see them again it's clear that they spent a lot of time …
Foojay Podcast #101: Java 27 in Practice: Smaller Heaps, Smarter Defaults, and Valhalla on the Horizon
JDK 27 arrives on 15 September 2026, and it is a feature release rather than a Long-Term Support one. That distinction matters less than it …
Richard Fichtner
4 viewsCome for Java. Get a Whole Lot More.
JCON USA returns inside IBM TechXchange 2026 with two rooms of deep Java content, a dedicated community home, and direct access to one of …
Dmitry Moskalyuk
1 viewsReflection-Free Serialization on the JVM: Four Formats In, Avro Out
I run a model layer that accepts the same business data in JSON, XML, YAML, and TOML and converts it all to Avro. The project was …
Viktoria Evdokimova
1 viewsOne Base URL, Many Coding Agents: What an OpenAI-Compatible Gateway Looks Like From java.net.http
Somewhere in every coding agent there is an HTTP client. Claude Code, Codex, Cursor, Cline, OpenCode: strip away the terminal UI or the …
Felipe Maschio
1 viewsMasking a JVM thread dump without breaking the analysis
A few weeks ago I posted on r/java about detecting virtual thread pinning from a plain thread dump. The technical discussion was fine. The …