NLJUG – Nederlandse Java User Group NLJUG – de Nederlandse Java User Group – is opgericht in 2003. De NLJUG verenigt software ontwikkelaars, architecten, ICT managers, studenten, new media developers en haar businesspartners met algemene interesse in alle aspecten van Java Technology.

November, 2026

• 5 November

  Spring AI or LangChain4j? One App, Three Stacks, One Test

  Author: Nicolas Duminil Original post on Foojay: Read More 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 they do not.

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• 5 November

  Java Patching at Incident Speed: Lessons from the eMudhra CA Compromise

  Author: Miles Dawborne Original post on Foojay: Read More Browsers blocked the compromised eMudhra CA keys in hours. Learn why Java estates lag, and how security-only Java patching cuts testing and response time.

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• 5 November

  Streaming Large File Uploads in Java Without Killing Your Server

  Author: Denis Kalgushkin Original post on Foojay: Read More Spring’s @RequestPart cannot stream multipart uploads — not even FilePart. The API that actually does, and the tests that prove it.

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• 4 November

  From Google Drive to Syncthing over Tailscale

  Author: Nicolas Frankel Original post on Foojay: Read More Why my KeePass database left Google Drive, and how Syncthing over a Tailscale mesh syncs it between a Synology NAS, a Mac, an iPhone, and an iPad.

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• 4 November

  dukehoff-decide: Typed, Calibrated Decisions from Small Language Models

  Author: Anton Epple Original post on Foojay: Read More Many LLM calls in Java apps are multiple choice. dukehoff-decide answers them with a small local model and returns a typed value with calibrated probabilities.

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• 4 November

  Spring Boot’s Hidden Secret for Configuration: EnvironmentPostProcessor

  Author: Mikhail Polivakha Original post on Foojay: Read More How to ship default configuration from a shared Spring Boot starter so services can still override it.

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• 3 November

  CheerpJ 5.0: Java 21/25 in the browser, full OpenJDK, and a new WasmGC engine

  Author: Alessandro Pignotti Original post on Foojay: Read More CheerpJ 5.0 brings Java 21 and 25, a complete OpenJDK build, and an experimental WasmGC execution engine to the browser.

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• 3 November

  Context Is a Budget: What Changed in Our Team’s Process When We Started Using AI Coding Agents

  Author: Viktoria Evdokimova Original post on Foojay: Read More A practical, tool-agnostic workflow for specs, tests, review loops, worktrees, and team-owned configuration when coding agents join development.

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• 3 November

  New on Foojay: Television, Statistics, Java Conferences and Coming Soon

  Author: Frank Delporte Original post on Foojay: Read More Four new pages on foojay.io: Java videos from YouTube, the numbers behind Foojay, a map of Java conferences and a peek at the articles that are coming.

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• 3 November

  No Quote, No Claim: Making an LLM Show Its Sources in Java

  Author: Somil Garg Original post on Foojay: Read More My job portal asks Gemini why a job fits a candidate. Every claim must quote its source, and a few lines of plain Java drop any quote that can’t be found.

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