Hubert Klein Ikkink

During my talk on restoring lost work in git at TechBash, I got some great questions about resolving conflicts. As a result, I realized people find current changes vs incoming changes very confusing. I am people.

Java Conferences with closing CFP in the next 15 days: Digital Crafts Day Closes: 31 October 2026 Java Day Istanbul Closes: 31 October 2026 JCON EUROPE Closes: 30 October 2026 JAX Closes: 11 November 2026 If you want to add your conference, please submit it at https://javaconferences.org/

We are excited to announce the release of Micronaut Framework 5.2.4! micronaut.io/2026/10/26/m... Micronaut Framework 5.2.4 is a security release. The highlight of this release is Micronaut Control Panel 2.2.1, which fixes two security advisories #micronaut

#OpenRewrite v8.94.0 out! 🚀 🐍 Python 3.15 upgrades & uv.lock edits 🌱 Spring Boot 4.1: RestTemplate → RestClient 🛡️ Hundreds of recipe correctness fixes 🐘 Gradle & Maven dependency exclusions 🏗️ HCL & Terraform recipes 🗄️ Hibernate 7 XML migrations github.com/openrewrite/rewrite/releases/tag/v8.94.0

Datetime formats and types in APIs and databases A blog by Ronald How to represent datetimes in APIs, the code, and the database is always... #dev #softwaredevelopment #API #JSON #Database #Jackson #ORM #Hibernate https://jdriven.com/blog/2026/10/Datetime-formats-and-types-in-APIs-and-databases/

Null Safe(r) Java with NullAway A blog by Jorrit After working on Kotlin projects for over seven years, I recently started on a Java project again. One of the things I missed... #dev #softwaredevelopment #Java #Compiler #NullAway https://jdriven.com/blog/2026/10/Null-Safer-Java-With-NullAway/

We are excited to announce the release of Micronaut Framework 5.2.3! 🚨 Micronaut Framework 5.2.3 is a security release. Please upgrade your applications. micronaut.io/2026/10/20/m... #micronaut

Let's look at building a @groovy.apache.org 6 web app with @grails.apache.org v9, a GroovyFX desktop app, & an Android app for splitting a bill. They share a formally proven common core. No cents rounded away to an off-shore account here! @apache.org #groovylang groovy.apache.org/blog/groovy-...

Did I Map Everything? A blog by Tundzaj Barov When migrating database schemas, you rarely get clean, predictable data. Legacy databases often have cryptic column names,... #dev #softwaredevelopment #Mockito #JDBC #UnitTesting #DataMigration https://jdriven.com/blog/2026/10/Did-I-Map-Everything/

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 4.1.2 has been released and is now available from Maven Central. spring.io/blog/2026/10... #java #spring #springboot

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 4.0.9 has been released and is now available from Maven Central. spring.io/blog/2026/10... #java #spring #springboot

Pondering AI - and AIthics A blog by Justus There is no shortage of discussion about AI, and LLMs in particular. This is my personal take on the debate: the claims I question, the concerns I share, and the questions... #dev #softwaredevelopment #ai #llm https://jdriven.com/blog/2026/10/pondering/

Mastering Maven: Failing Faster With Failing Tests A blog by @mrhaki.com Maven uses the Surefire plugin to run unit tests and the Failsafe plugin to run integration tests. The... #dev #softwaredevelopment #Maven https://jdriven.com/blog/2026/10/Mastering-Maven-Failing-Faster-With-Failing-Tests/

Nushell Niceties: Parsing JWT A blog by @mrhaki.com The following blog post by Karl Tryggvason shows a simple script to get data from a JSON Web Token (JWT) using jq. It is basically... #dev #softwaredevelopment #JWT #Nushell #CLI https://jdriven.com/blog/2026/10/Nushell-Niceties-Parsing-JWT/

The cost of frozen code A blog by Tundzaj Barov In my previous post, The Azure Scale Controller is Wilding: Build Your Own Java Fan-Out... #dev #softwaredevelopment #Java #Concurrency #AzureDurableFunctions #CloudCostOptimization https://jdriven.com/blog/2026/10/the-cost-of-frozen-code/

Get @intellijidea.com #IntelliJIDEA smartness for #Java and @kotlinlang.org in @vscode.dev and #cursor; the LSP can be used by humans and agents, producing faster, more deterministic results, consuming fewer tokens. blog.jetbrains.com/idea/2026/10...

The coffee machine still matters A blog by Erik A while ago I was stuck on a problem. I had been turning it over on my own for the better part of a morning, and I was not getting anywhere. Then I walked to... #dev #softwaredevelopment #AI #Techradar https://jdriven.com/blog/2026/10/coffeemachine/

Java and Kotlin by IntelliJ IDEA has reached 1.0! Built together with Cursor, this LSP-based extension release is a major leap toward bringing our JVM technology beyond the IDE – wherever you’re working, whichever editor or agent you use. Read more👇 blog.jetbrains.com/idea/2026/10...

Just finished my talk on #JakartaEE and #Microprofile at #BaselOne, and I couldn't be happier with how it went! Here are the talk resources: - Slide deck: hanno.codes/slides/from-... - Github project with the completed app: github.com/hannotify/gr... - and as a bonus: a "Gravel Trapp" screengrab 🏎️

Need to test an endpoint's admin-only code path but don't have that account? In @IntelliJIDEA, unlock with custom authorities from the inlay popup and the response itself changes — no account provisioning needed, just for this debug run 👇 jb.gg/l37xwl

A DIY LocalStack for Google APIs with WireMock and TestContainers A blog by @arjen.tebbenhof.nl Discover how to... #dev #softwaredevelopment #SpringBoot #WireMock #TestContainers #GoogleWorkspace https://jdriven.com/blog/2026/10/a-diy-localstack-for-google-APIs-with-wiremock-and-testcontainers/

Missed this session? Get practical tips for working with IntelliJ IDEA and Spring Boot in “Bootiful IntelliJ IDEA” by @starbuxman.joshlong.com. Watch the recording on YouTube: youtu.be/Ijdk06qjtdo #IntelliJIDEAConf

How the default aspect order can break your resilience and caching strategy A blog by Fatih Yilmaz #dev #softwaredevelopment #Java #SpringBoot #Retry #Resilience4j #Cache #CircuitBreaker https://jdriven.com/blog/2026/10/How-the-default-aspect-order-can-break-your-resilience-and-caching-strategy/

Upgraded to Maven 3.10.0 and an untouched pom.xml now fails? 😅 Duplicate dependency and plugin declarations used to warn. Now they stop the build. 🛑 @timtebeek.github.io's new OpenRewrite recipe fixes them in every repo: buff.ly/iVFhJ5t

IntelliJ IDEA: Use Breakpoints Debugging Lombok Constructor Annotations A blog by @mrhaki.com As a consultant I am part of a lot of different Java projects. Some... #dev #softwaredevelopment #IntelliJIDEA #Debugging https://jdriven.com/blog/2026/10/intellij-debug-lombok-requiredargsconstructor/

The Azure Scale Controller is Wilding: Build Your Own Java Fan-Out Orchestrator A blog by Tundzaj Barov #Java #Concurrency #AzureFunctions #Serverless #AzureDurableFunctions https://jdriven.com/blog/2026/10/The-Azure-Scale-Controller-is-Wilding-Build-Your-Own-Java-Fan-Out-Orchestrator/

We are excited to announce the release of Micronaut Framework 5.2.2! micronaut.io/2026/10/07/m... #micronaut

Leave it up to @glycin.bsky.social to explain git using gamification at @devoxx.com 🤩

Let's introduce a @NullPropagates annotation A blog by Jacob It’s finally mature: a framework to define nullability in Java. There have been so many attempts, but... #dev #softwaredevelopment #Java #AnnotationProcessor https://jdriven.com/blog/2026/10/Lets-introduce-a-NullPropagates-annotation/

If you prefer a written version of how I think we should build Java programs, here's a blog posting on Jenesis: foojay.io/today/introd...

Learning the Bitter Lesson A blog by Casper Our colleague Jacob shed a light on working with AI in a post he wrote back in June, Contemplations. One of his points was that, with AI being more and more ubiquitous in... #dev #softwaredevelopment #AI https://jdriven.com/blog/2026/10/bitter-lesson/

Hey @devoxx.com #devoxx, tommorow at 13:50 I'll be nerding out about something you use everyday, Git! m.devoxx.com/events/dvbe26/… If you are in the market for a fun, lighthearted, and slightly informational talk, then come say hi!

🤯 Well… we’re speaking at @devoxx.com Belgium! 🇧🇪 We just got upgraded from backup to speaker! 🎉 Tomorrow at 09:30, @maarten-vandeperre.bsky.social and I are bringing AI Without Spaghetti to Devoxx. 🍝 See you there! 🚀

Spock 2.5 is out! 🎉 • Groovy 6.0 support • final variables in where: blocks • Better TooManyInvocationsError diagnostics Heads-up: interactions now stay active in cleanup methods. Release notes: spockframework.org/spock/docs/2... #groovylang

Learning by steering: building software by using AI webclient as a pair programmer A blog by @arjen.tebbenhof.nl Over the... #dev #softwaredevelopment #SpringBoot #Gemini #HexagonalArchitecture #HTMX https://jdriven.com/blog/2026/10/learning-by-steering-building-software-by-using-AI-webclient/

🚀 SDKMAN! CLI 5.23.2 released! Full changelog: https://github.com/sdkman/sdkman-cli/releases/tag/5.23.2

The video of @graemerocher.bsky.social's talk is available now! 📽️ www.youtube.com/watch?v=2Tmj...

When was the last time you checked your basement to see if there was any flooding? 🛶 When was the last time you checked your Java heap to see if there were any allocation waves of lambdas? 🌊 donraab.medium.com/fat-free-lam...

The solo only a human can play A blog by Erik If you have read my blogs before, you probably know about my passion for sports, and for Michael Jordan in particular. But there is a second passion I rarely write about, and that... #dev #softwaredevelopment #AI https://jdriven.com/blog/2026/10/solo/

If you wonder how build tooling for Java can look like compared to what is out there, here's a teaser comparing to Maven, Gradle and Bazel. It all works! jenesis.build/why/tool/

@maven.apache.org 3.10.0 got released a few moments ago 🥳 Be one of the first to download it! Release Notes: maven.apache.org/docs/3.10.0/... Download: maven.apache.org/download.cgi

ArchUnit in the Age of Agentic Development A blog by Rob In our projects we have been using ArchUnit for years to write unit tests that... #dev #softwaredevelopment #Java #AI #Architecture #ArchUnit #AgenticDevelopment https://jdriven.com/blog/2026/10/ArchUnit-in-the-Age-of-Agentic-Development/

This needs to be said again : ☸️ Set a #Kubernetes memory request? That memory is locked and reserved... used or not. ☸️ Set ONLY a limit? K8s automatically sets the request to match it. ☕ No JVM heap size? It defaults to 25-50%, wasting the rest. Stop bleeding cloud budget. aka.ms/jaz

This Thursday we'll have Guus de Wit and Maik Kingma sharing their insights on writing less code and AI agents in production. Details and sign-up: www.meetup.com/jug-noord/ev...

The Micronaut Foundation is excited to announce the release of Micronaut Framework 5.2.0! micronaut.io/2026/09/27/m... #micronaut

Super useful feature when working with Spring!

Building a souls-like RPG using... Spring Boot?! Join us at #VDTHES (Nov 20-21) as Alexander Chatzizacharias (JDriven) breaks all conventions in his talk "Let’s use Spring Boot to build games, because why not?". Tickets: https://www.eventora.com/en/Events/vdthess-26 #vdthess26 #vdthess