https://foojay.io/Foojay is a place for Friends Of OpenJDK, providing free, reference materials and blogs for daily Java usage.Hugoen-usFri, 09 Oct 2026 00:00:00 +0000https://foojay.io/today/why-another-java-server/Fri, 09 Oct 2026 00:00:00 +0000Shai AlmogJavahttps://foojay.io/today/why-another-java-server/Why we brought Codename One's mobile runtime to the server: small native Java executables, Go comparisons, and shared code from the app to its database.https://foojay.io/today/introducing-cbgenesis-ai-native-coldbox-starter-for-boxlang/Fri, 09 Oct 2026 00:00:00 +0000Luis MajanoBoxLangJavaAIDeveloper ToolsSecurityhttps://foojay.io/today/introducing-cbgenesis-ai-native-coldbox-starter-for-boxlang/cbGenesis 1.0 is a production-ready ColdBox starter for BoxLang with auth, RBAC, security, tests, admin tools, and AI-native guidance.https://foojay.io/today/how-to-create-test-install-agent-skills/Fri, 09 Oct 2026 00:00:00 +0000Maks DanylenkoAIDeveloper Toolshttps://foojay.io/today/how-to-create-test-install-agent-skills/A practical guide to creating, validating, testing, and installing Agent Skills in Claude Code, from SKILL.md to plugin eval.https://foojay.io/today/tryboxlang/Thu, 08 Oct 2026 00:00:00 +0000Luis MajanoBoxLangJavaCloudDeveloper Toolshttps://foojay.io/today/tryboxlang/Test BoxLang releases and CFML compatibility in your browser, backed by isolated AWS Lambda functions built from a single repository.https://foojay.io/today/introducing-jenesis/Thu, 08 Oct 2026 00:00:00 +0000Rafael WinterhalterDeveloper ToolsToolsMavenGradlehttps://foojay.io/today/introducing-jenesis/Jenesis is a Java build tool that reads the build from module-info.java: no build file to write, no plugins, no build tool to download.https://foojay.io/today/real-time-fraud-detection-kafka-vector-similarity/Wed, 07 Oct 2026 00:00:00 +0000Ricardo MelloJavaKafkaMongoMachine Learninghttps://foojay.io/today/real-time-fraud-detection-kafka-vector-similarity/How Java, Kafka Streams, and MongoDB vector search combine to catch fraud in real time, from rule-based guardrails to behavioral similarity scoring.https://foojay.io/today/green-build-wrong-task-a-working-agreement-for-java-teams-using-ai-coding-agents/Wed, 07 Oct 2026 00:00:00 +0000Viktoria EvdokimovaAIJavaTestingDeveloper Toolshttps://foojay.io/today/green-build-wrong-task-a-working-agreement-for-java-teams-using-ai-coding-agents/Three ways AI coding agents waste a Java team's afternoon, and the spec, locked tests and capped review loop that stop it. Webinar notes, agent-agnostic.https://foojay.io/today/adding-rag-to-jakarta-ee-11-app/Wed, 07 Oct 2026 00:00:00 +0000Luqman SaeedJakarta EEAIJavahttps://foojay.io/today/adding-rag-to-jakarta-ee-11-app/Build a RAG pipeline in a Jakarta EE 11 app with only the JDK HTTP client, Jakarta specs and MicroProfile Config: no vector database, no Python.https://foojay.io/today/java-in-the-browser-with-teavm/Tue, 06 Oct 2026 00:00:00 +0000Petr PravdaJavaDeveloper Toolshttps://foojay.io/today/java-in-the-browser-with-teavm/Build an editable Java example with TeaVM, React, and Vite, then explore the environment available to Java in the browser.https://foojay.io/today/featured-foojay-authors-for-october-2026/Tue, 06 Oct 2026 00:00:00 +0000Frank DelporteFoojayhttps://foojay.io/today/featured-foojay-authors-for-october-2026/Our Featured Authors for October are Bazlur Rahman and Nicolas Fränkel. Here is what they write about, and where to start reading.https://foojay.io/today/building-a-javafx-code-editor-control/Tue, 06 Oct 2026 00:00:00 +0000Libán Bande GonzálezJavaFXJavahttps://foojay.io/today/building-a-javafx-code-editor-control/Inside a custom JavaFX Control/Skin for a code editor: virtualized line numbers, keyword highlighting, bracket matching, multi-cursor editing, undo/redo and autocomplete.https://foojay.io/today/foojay-podcast-102/Mon, 05 Oct 2026 00:00:00 +0000Frank DelporteAndy DamevinHolly CumminsPodcastDeveloper ToolsSecurityJavahttps://foojay.io/today/foojay-podcast-102/Foojay walked away from WordPress after six years. Andy Damevin and Holly Cummins join to weigh CMS security and cost against Hugo, Jekyll and Roq.https://foojay.io/today/changes-included-in-release-26-08-of-azul-zing-builds-of-openjdk/Fri, 02 Oct 2026 00:00:00 +0000Matt Van OrderJavaRelease Noteshttps://foojay.io/today/changes-included-in-release-26-08-of-azul-zing-builds-of-openjdk/Azul Zing Builds of OpenJDK, the optimized Java runtime within Azul Platform Prime, has reached the release of the 26.08 Stable Release line.https://foojay.io/today/why-every-jvm-in-your-fleet-warms-up-alone/Thu, 01 Oct 2026 00:00:00 +0000Jiří HolušaJava CorePerformanceJEPshttps://foojay.io/today/why-every-jvm-in-your-fleet-warms-up-alone/Why you can't just copy a JIT-compiled method from one JVM to another: compiled code is a bet on one specific JVM's state. Identity, validity, and profitability all have to be checked before it's safe to reuse.https://foojay.io/today/lathe-a-java-language-server-from-your-maven-build/Thu, 01 Oct 2026 00:00:00 +0000Alexey GavrilovDeveloper ToolsJavaMavenhttps://foojay.io/today/lathe-a-java-language-server-from-your-maven-build/No project import, no classpath setup — Lathe takes its whole model from your Maven build, so the editor never drifts from what actually compiles.https://foojay.io/today/announcing-skinning-javafx-applications/Thu, 01 Oct 2026 00:00:00 +0000Libán Bande GonzálezJavaFXJavahttps://foojay.io/today/announcing-skinning-javafx-applications/A practical, code-first book on building modern, visually distinctive JavaFX interfaces — from theming to custom dashboard controls built from scratch.https://foojay.io/today/my-love-hate-relationship-with-java-formatters/Wed, 30 Sep 2026 00:00:00 +0000Alex AbashevDeveloper ToolsJavaOpinionhttps://foojay.io/today/my-love-hate-relationship-with-java-formatters/Learning to love google-java-format, why AI agents make formatters matter even more, and why palantir-java-format now has a fork: open-java-format.https://foojay.io/today/performance-work-between-benchmarks/Wed, 30 Sep 2026 00:00:00 +0000Shai AlmogJavahttps://foojay.io/today/performance-work-between-benchmarks/Codename One tackles GC, maps, startup, and JavaScript overhead, and adds native drag and drop plus cross-device continuity. Javadoc joins website search...https://foojay.io/today/javafx-links-of-september-2026/Wed, 30 Sep 2026 00:00:00 +0000Frank DelporteJavaFXhttps://foojay.io/today/javafx-links-of-september-2026/Here are the JavaFX LinksOfTheMonth of September 2026. This was a big month with the release of JavaFX 27!https://foojay.io/today/durable-execution-is-a-property-not-a-product/Wed, 30 Sep 2026 00:00:00 +0000Nicholas D'hondtOpinionDurabilityJavahttps://foojay.io/today/durable-execution-is-a-property-not-a-product/Durable execution is a property your existing database can provide, not a product you must buy. Measured, with receipts you can run yourself.https://foojay.io/today/the-java-21-doomsday-clock-countdown/Tue, 29 Sep 2026 00:00:00 +0000Dana CraneJavaOpenJDKOpenJDK Migrationhttps://foojay.io/today/the-java-21-doomsday-clock-countdown/Oracle's free NFTC license for Java 21 has expired, and the October 2026 quarterly update is the first one enterprises have to pay for. Here are the three options left, and why the timeline is short!https://foojay.io/today/testing-kafka-consumer-recovery-contracts-with-testcontainers-and-junit/Mon, 28 Sep 2026 00:00:00 +0000Ishan ShahJavaKafkaTestcontainersTestinghttps://foojay.io/today/testing-kafka-consumer-recovery-contracts-with-testcontainers-and-junit/Use Testcontainers and JUnit to test Kafka consumer recovery contracts for duplicate delivery, malformed records, and offset-boundary failures.https://foojay.io/today/how-much-will-post-quantum-migration-cost-your-java-codebase/Mon, 28 Sep 2026 00:00:00 +0000Arpan SharmaSecurityJavaResearchhttps://foojay.io/today/how-much-will-post-quantum-migration-cost-your-java-codebase/A static auditor that estimates what a post-quantum migration will cost a Java codebase, run across 27 popular Java projects to show where the cost hides.https://foojay.io/today/ai-assisted-genealogy-follow-up/Sun, 27 Sep 2026 00:00:00 +0000Nicolas FrankelAIUse Caseshttps://foojay.io/today/ai-assisted-genealogy-follow-up/A follow-up on AI-assisted genealogy: source quality with GEDCOM QUAY, per-site browsing skills, Playwright sessions, transcriptions, and hiccups along the way.https://foojay.io/today/one-database-two-models-mysql-json-duality-views-java/Sat, 26 Sep 2026 00:00:00 +0000A N M Bazlur RahmanJavaDatabasesAILangChain4jhttps://foojay.io/today/one-database-two-models-mysql-json-duality-views-java/Explore MySQL JSON Duality Views in Java: simpler reads, safe document writes, ORM comparisons, and read-only tools for a local AI assistant.https://foojay.io/today/voip-vpn-builders/Fri, 25 Sep 2026 00:00:00 +0000Shai AlmogJavahttps://foojay.io/today/voip-vpn-builders/Codename One adds native call management and VPN APIs, while its builders generate the platform services, frameworks, permissions, and extension plumbing...https://foojay.io/today/boxlang-ai-340-gateways-hitl-security/Fri, 25 Sep 2026 00:00:00 +0000Luis MajanoAIBoxLangGenAISecurityDeveloper Toolshttps://foojay.io/today/boxlang-ai-340-gateways-hitl-security/BoxLang AI 3.4.0 introduces gateways, durable human approvals, layered AI security, normalized reasoning, run control, and improvements across providers.https://foojay.io/today/diagrams-as-code-mermaid-support-on-foojay/Thu, 24 Sep 2026 00:00:00 +0000Frank DelporteFoojayhttps://foojay.io/today/diagrams-as-code-mermaid-support-on-foojay/Foojay articles now render Mermaid diagrams from a fenced code block. Write the diagram in Markdown, get a real diagram, and keep it reviewable in the pull request.https://foojay.io/today/asciidoc-support-on-foojay/Wed, 23 Sep 2026 00:00:00 +0000Frank DelporteFoojayhttps://foojay.io/today/asciidoc-support-on-foojay/Foojay articles can now be written in AsciiDoc as well as Markdown. Named blocks, real tables, source callouts and admonitions — the things Markdown has no syntax for.https://foojay.io/today/announcing-the-new-foojay/Tue, 22 Sep 2026 00:00:00 +0000Frank DelporteFoojayhttps://foojay.io/today/announcing-the-new-foojay/Foojay has a new home: a static, open-source site where publishing an article is a pull request. Same URLs, same archive, much faster, and new features.