Write assertions with #AssertJ for multiline string values by normalizing new lines: blog.mrhaki.com/2026/01/awes...

As a long-time teacher of Test-Driven Development, I've heard every reason under the Sun for why teams *can't* do TDD. One of the most common is also one of the more puzzling: "How can I write tests first if I don't know what the code's supposed to do?" codemanship.wordpress.com/2026/01/28/r...

You can use Alt+Enter to fix errors and warnings, but the list of options it provides is limited. Use command completion (..) instead to perform the relevant actions you need in your editor. #IntelliJIDEATips

Nushell Niceties: Calculating The Sum Of Numeric Values A blog by @mrhaki.com The math module in Nushell has a lot of useful commands to work with numeric values. You can... #dev #softwaredevelopment #Nushell https://jdriven.com/blog/2026/01/Nushell-Niceties-Calculating-The-Sum-Of-Numeric-Values/

Nushell Niceties: Getting Minimum And Maximum Values A blog by @mrhaki.com In Nushell we can use a lot a math related commands to get for example the minimum and maximum... #dev #softwaredevelopment #Nushell https://jdriven.com/blog/2026/01/Nushell-Niceties-Getting-Minimum-And-Maximum-Values/

What is JBang? The Complete Guide to Java Scripting buff.ly/dkxg8FA #Java #Jbang

To check if a value is in a list or string, a key is in a record, you can use several operators in #Nushell: blog.mrhaki.com/2026/01/nush...

Most Dockerfiles in production are security nightmares: running as root, using :latest tags, copying secrets. Writing a good Dockerfile isn't hard, you just need to know the rules. Here's every best practice you need for production-ready containers 🐳 https://youtu.be/ueTe-VQaD7c

Posting our blog feed to social networks using Slack A blog by @arjen.tebbenhof.nl Two years ago, we wrote about building a Slack bot to automatically... #dev #softwaredevelopment #TypeScript #Slack #Deno #Atom https://jdriven.com/blog/2026/01/Posting-our-blog-feed-to-social-networks-using-Slack/

I’ll be speaking at @jchampionsconf.bsky.social 🎉 🎤 Test Smarter, Not Harder - practical testing strategies for complex distributed systems. 🗓 Jan 26 · 18:00 CET 🔗 jchampionsconf.com 🎟 www.eventbrite.com/e/jchampions... 🎥 www.youtube.com/@JChampionsC...

Maven 4 Is Finally Here: Everything You Need to Know About the Biggest Update in 15 Years techlife.blog/posts/maven-... #Maven #Maven4 #Java #Buildools #SoftwareDevelopment #DevOps #POM #TechNews

"Productivity Theatre": when someone insists on doing a task using a specific tool or a technique just to prove that it can be done, even though it takes significantly longer. Example: "Claude, please extract lines 23-29 into a new method called 'foo' that returns the value of x"

I'm presenting on "Maven's hidden secrets to speed up your build" at @devnexus.bsky.social in early March, it's the best AI and Enterprise Java conference in the USA and you should attend. Use this code (SPEAK30) to get 30% off the ticket price making it an amazing value!

I had a lot of fun working on this, thanks for reaching out @jetbrains.com !! The trailer looks amazing :D

On June 4th, an amazing #Java conference will take place in Utrecht: 𝐉-𝐒𝐩𝐫𝐢𝐧𝐠! Our Call for Papers is open until 28 February 2026. Submit here to get the chance to speak to a packed cinema room! sessionize.com/jspring26 @nljug.bsky.social

my son did an AI coding course last year through school, this is literally how they taught him to use it. Feed prompts into Claude, put that output into CursorAI, copy and paste the errors into Claude, feed that output back into CursorAI, endless cycles until something works. Insane shit.

Arconia for Spring Boot Dev Services and Observability #java #springboot

Once upon many releases ago, Runzo started dwelling inside IntelliJ IDEA. Watching features ship, dodging bugs, surviving chaos 🎮 Now it's your turn. Jump into IDE Survivors and try staying alive with our lil hero 🦸 Try out the game created by @glycin.bsky.social ✨ jb.gg/IJ25_Game

IntelliJ IDEA turns 25! 🎉 Join the celebration to meet our special guest Runzo, play with him, and grab our one-of-a-kind birthday postcards. Join the celebration! 👇 jb.gg/IJ25

Discover how to handle documentation as code with AsciiDoctor, GitLab CI, and GitLab Pages in this insightful piece by @jensknipper.de. Read on: foojay.io/today/docume... #AsciiDoctor #GitLab

Update time! #LibreOffice 25.8.4 is now available, with 70 fixes and improvements to compatibility: blog.documentfoundation.org/blog/2025/12... #foss #opensource

📣 Micronaut announces plans to join @commonhaus.org micronaut.io/2026/01/12/m... #micronaut

Do not give up your brain by @cassidoo.co

Deepfakes are a free speech issue: "the steady threat of being digitally 'undressed' can push women to self-censor, avoid weighing in on contentious topics, or leave digital platforms altogether—particularly when the abuse is happening in public replies." www.techpolicy.press/grok-superch...

What if you could perform actions in #IntelliJIDEA without having to know the shortcuts? Command completion, an extension of regular code completion, offers you relevant action right in your editor. Learn more in this video by @maritvandijk.bsky.social 📹 👇 youtu.be/waY6HAmyHOw

🚀 mcs 0.9.4 has just been released! Check https://github.com/mthmulders/mcs/releases/tag/v0.9.4 for the details.

omg 😅😬😭 mastodon.social/@heliographe...

I just found out that my Lego model of the Tilburg city skyline was put up for sale on AliExpress without my knowledge or consent. I guess that means I'm in the big leagues now!! 😂 (It's cheaper if you go through bricklink.com BTW 😉)

Blogged: Code Cleanliness "My first encounter with cleanliness in code: […] Kernighan and Plauger’s 1978 book, The Elements of Programming Style (2nd edition). […] The idea of clean code has been around in one form or another for at least half a century." kevlinhenney.medium.com/code-cleanli...

2026. We go again. Anyone need any small design work done? It takes less than 5 seconds to RT, like something. Big up your mates, help them out, even if you don't need anything done. Support them when you can. You never know who might see it. Link in bio as always. Cheers ✊

#OpenRewrite v8.71.0 is out! 🎆 🌱 Spring Boot 4: expanded coverage ☁️ Spring Cloud 2025.1 recipes 🔐 Spring Security 7 modularized 🐘 Hibernate 7.2 migration recipe 🧪 JUnit 5.13 deprecated API upgrades 🎯 JavaScript: spread/rest syntax 🚢 Kubernetes v1.33-35 API migrations github.com/openrewrite/...

The new year brought some unexpected news: I've been impacted by a restructure at Broadcom. Now open to new opportunities as a Senior/Staff Java Developer (remote from Madrid). Happy to connect if there’s a potential fit. 👉🏼 www.linkedin.com/in/ivanlopez... #OpenToWork #Java #RemoteJobs

Somewhere along the way, our industry started calling everything a mock. @emilybache.com explores why the language of mocking in software testing has drifted so far from its original meaning. Watch on @modernswe.bsky.social NOW ➡️ youtu.be/RvKPOjlQKyM Good one, Emily 👏

"[OpenAI] is encouraging users to connect their personal medical records and wellness apps, such as Apple Health, Peloton, MyFitnessPal, Weight Watchers, and Function" Don't do this. Don't do this. Don't do this. Don't do this. Don't do this. Don't do this. Don't do this. Don't do this.

The math module in #Nushell has some useful commands. For example it is easy to calculate the sum of multiple numeric values: blog.mrhaki.com/2026/01/nush...

Getting the minimum and maximum values on several input types like lists and tables in #Nushell using the math min and math max commands: blog.mrhaki.com/2026/01/nush...

I like the overall look of macOS Tahoe. But the menu bar icons? Hoo boy… tonsky.me/blog/tahoe-i...

New on the blog: Code Cleanliness On the origins of 'clean code' kevlinhenney.medium.com/code-cleanli...

I’ll be speaking at @jchampionsconf.bsky.social 🎉 🎤 Test Smarter, Not Harder - practical testing strategies for complex distributed systems. 🗓 Jan 26 · 18:00 CET 🔗 jchampionsconf.com 🎟 www.eventbrite.com/e/jchampions... 🎥 www.youtube.com/@JChampionsC...

Learn how to use Structurizr to generate a system landscape overview of your software systems when every software system has created its own System Context Diagram. #c4model

In this blog, you will learn how to monitor a Spring Boot application using Ostara. Ostara is a desktop application which monitors and manages your application. Enjoy! #java #springboot #ostara

I'm proposing to call any approach where you get an "AI" coding assistant to do a whole bunch of things and *then* check the output for problems "prompt-and-fix" software development. It works about as well as you'd expect for any process that ends with "-and-fix".

Another effortless #JReleaser release posted by simply clicking a single button, on New Year’s Eve, thanks to @jreleaser.org itself. If you’re not automating your releases already, don’t wait up! github.com/jreleaser/jr...

🎯 2026: Let's make it the Year of Java in the Terminal xam.dk/blog/lets-ma...

JBang: A Time Traveler’s Guide to Java Scripting Or: How I Learned to Stop Worrying and Love the Single File www.the-main-thread.com/p/jbang-java...

Free e-book! Practical Guide to Building an API Back End with Spring Boot by Wim Deblauwe.

My favorite advice for blogging remains that you should hit publish while you are still actively unhappy with what you have written, because the only alternative is a huge folder full of drafts and never publishing anything at all

Spring Boot 4 finally has a dedicated OpenTelemetry starter. No more pulling in actuator just for observability. Metrics, traces, and logs via OTLP out of the box. youtu.be/6_Y41z7OIv8

Cunk spittin Christmas cheer

As an early Christmas present (if you're celebrating), also to ourselves, we have overhauled our User Guide, Release Notes, and Javadoc. Check it out on docs.junit.org! Thanks to the @sovereign.tech agency for making it possible and to the @antora.org project for the excellent tool!