iiinova — where your digital self keeps evolving

Reposted by Stefano Cordio

TestLens @testlens.app · 16/09/2026

When we started TestLens, we knew who we were building it for: teams that take their test suites seriously. So it means a lot that some of the most widely used testing projects in the JVM world now use TestLens on their own pull requests. 👉️ Read more: testlens.app/blog/2026/09... #java #junit

testlens.app

Leading Open Source Projects Trust TestLens

JUnit Framework, AssertJ, Apache Groovy, Apache Grails, and Spock Framework are early adopters of TestLens.

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Stefano Cordio @scordio.github.io · 25/08/2026

Looks very helpful, thanks for it! Just installed 🙂 I hope that menu entry won't be used too much 🙈

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Patrick Baumgartner @patbaumgartner.com · 24/08/2026

🚀 Spring Boot running in your browser tab. Just because I can! I wrote up the journey, some numbers, and a few things I learned along the way. www.linkedin.com/pul... Hopefully a fun read. Feedback very welcome! 😄 #springboot #wasm #softwarecraft #mytunes

linkedin.com

Spring Boot, Running in a Browser Tab: For No Better Reason Than Curiosity

Last week brought us Spring Boot 4.1.

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Stefano Cordio @scordio.github.io · 23/08/2026

TIL you cannot access non-constant static fields in an enum constructor (JLS §8.9.2), unlike in a standard class. This is because enum constructors run during enum class initialization, while non-constant fields are initialized later, creating a forward reference. docs.oracle.com/javase/specs...

JLS §8.9.2 excerpt: "It is a compile-time error to refer to a static field of an enum class from a constructor, instance initializer, or instance variable initializer in the enum declaration of the class, unless the field is a constant variable (§4.12.4)."

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JCON Conference @jcon.one · 10/08/2026

Our next #JCON2026 session is live: 'Better #Assertions with #AssertJ' with @timtebeek Not all #testing libraries are equal. Sure they all run your tests, but what happens when they #fail? “Expected ‘true’, was ‘false’” won’t help you … Grab your coffee and hit play: youtu.be/W7BhLNVHuqo

youtu.be

https://youtu.be/W7BhLNVHuqo

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GitHub @github.com · 13/08/2026

In Session 4 of the GitHub Secure Open Source Fund, 50 projects upgraded their security posture through AI-assisted workflows, maintainer expertise, GitHub security tools, and more. As AI changes how software is built, maintainers remain at the center of protecting the open source ecosystem. 👇

github.blog

What 50 open source projects taught us about security in the AI era

See how the projects in the GitHub Secure Open Source Fund combined AI-assisted workflows, maintainer expertise, and more to improve project security.

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Sam Brannen @sambrannen.com · 10/08/2026

🍃 #SpringFramework 7.0.9 will finally document AOP proxy semantics for Bean Overrides in tests, with dedicated examples for stubbing through proxies or avoiding proxies altogether with @⁠MockitoSpyBean. 😎 - docs.spring.io/spring-frame... - docs.spring.io/spring-frame...

docs.spring.io

Bean Overriding in Tests :: Spring Framework

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Daniel Garnier-Moiroux @garnier.wf · 08/08/2026

Y'all are creating a lot of noise, and not doing _any_ of the engineering work. When we say "not like this because <reason>" and get an LLM-generated fix within 5 minutes, what have you learned? Have you furthered your understanding of the project so that the next PR is better?

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JUnit Team @junit.org · 03/08/2026

Ever needed help with a JUnit test or extension? Core JUnit team members now offer commercial support with OpenElements. ✅ 4–8 support hours per month ✅ Guaranteed response times ✅ Quarterly expert webinar ✅ Monthly newsletter Unused hours go back into JUnit. open-elements.com/support-care...

open-elements.com

Support & Care - Open Elements

Support & Care is a program for the sustainable further development, stabilization and support of open source software (OSS).

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Stefano Cordio @scordio.github.io · 29/07/2026

Me two months ago, when I chose the next AssertJ topic: "How hard could it possibly be?" github.com/assertj/asse...

The Traumatized Mr. Incredible Meme, where on the left it says "Deprecate AssertionsForClassTypes and AssertionsForInterfaceTypes", and on the right it says "82 files changed, +3'967, -2'489".

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JUnit Team @junit.org · 12/07/2026

#JUnit 6.1.2 is released! 🐞 Bug fixes and enhancements since 6.1.1 docs.junit.org/6.1.2/releas...

docs.junit.org

Release Notes :: JUnit User Guide

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Stefano Cordio @scordio.github.io · 11/07/2026

I had a blast at JUG Lucerne, with a small but engaging crowd whom I spent almost three hours with! 😍 What stuck with me the most: • AssertJ should be renamed to AssertJoy • They would love a hands-on follow-up with more advanced use cases Many thanks again to @mcpringle.bsky.social for having me!

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Stefano Cordio @scordio.github.io · 07/07/2026

That's nice! Could javadoc warnings be reported as well?

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Spring I/O @springio.net · 10/06/2026

🍃 Domain-centric? Why Hexagonal- and Onion-Architecture are answers to the wrong question by @odrotbohm.de @ Spring I/O 2026 ▶️ Video: youtu.be/YgIoITZpiP4 #springio26

youtu.be

Domain-centric? Why Hexagonal- and Onion-Architecture are answers to the wrong question @ Spring I/O

YouTube video by Spring I/O

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Spring I/O @springio.net · 10/06/2026

🍃 The Joy of Queries by @mp911.de @ Spring I/O 2026 ▶️ Video: youtu.be/f5ehQCijgdw #springio26

youtu.be

The Joy of Queries by Mark Paluch @ Spring I/O 2026

YouTube video by Spring I/O

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Reposted by Stefano Cordio

Oliver Drotbohm @odrotbohm.de · 01/06/2026

🥁📢 We are going to ship a significant number of security fixes in the releases coming next week. Be prepared to upgrade your apps as quickly as possible. 🍃

spring.io

Spring and Security In The Times Of AI

Level up your Java code and explore what Spring can do for you.

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JUnit Team @junit.org · 19/05/2026

#JUnit 6.1.0 is released! 🕑 Built-in extensions for locale, time zone, and system properties 🚮 Configurable TempDir deletion strategy 🏃‍➡️ New org.junit.start module for compact source files ⚙️ Execution mode config for dynamic tests 🏊 New parallel test executor impl. docs.junit.org/6.1.0/releas...

docs.junit.org

Release Notes :: JUnit User Guide

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Stefano Cordio @scordio.github.io · 14/05/2026

Now the Java User Group in Zurich knows what's wrong with AssertJ! And also how we're working to improve things. We're still in the early stages, but I can't wait to see all this work shipped to our users 🚀 Thank you so much to everyone who joined and @patbaumgartner.com for hosting! I had a blast!

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Stefano Cordio @scordio.github.io · 07/05/2026

Less than a week to go! 🚀 Join me this Tuesday at PH Zürich to discover how AssertJ 4 is about breaking things (carefully) to make your testing life better. Come for the technical debt, stay for the drinks and networking! 🍻 www.jug.ch/html/events/...

jug.ch

Java User Group Switzerland: Event "What's wrong with AssertJ?! - How a decade of technical debt is addressed in version 4.0"

AssertJ has been a player in Java testing for over a decade, providing an intuitive set of strongly typed assertions designed to maximize test readability. Since the launch of version 3.0, the library...

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Reposted by Stefano Cordio

JUnit Team @junit.org · 26/04/2026

#JUnit 5.14.4 is released! 🐞 Bug fixes and enhancements since 5.14.3 docs.junit.org/5.14.4/relea...

docs.junit.org

Release Notes :: JUnit User Guide

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JUnit Team @junit.org · 25/04/2026

#JUnit 6.1.0-RC1 is ready for testing! ✨ Built-in extensions for default locale, time zone, and system properties 🚮 Configurable TempDir deletion strategy 🧹 Experimental memory cleanup mode docs.junit.org/6.1.0-RC1/re...

docs.junit.org

Release Notes :: JUnit User Guide

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Tim te Beek @timtebeek.github.io · 21/04/2026

Good morning @jcon.one ! For the most dedicated audience there's a 9AM testing talk. 😅 See you there!

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Stefano Cordio @scordio.github.io · 15/04/2026

I'm a huge fan of data-driven and parameterized testing, and always want to keep test code as readable and maintainable as production code. What you get: 🍃 @SpringConversion → Tap into Spring Framework's type conversion 🔢 @Bytes, @Base64, and @Hex → Decode strings directly into byte arrays 🧵

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Stefano Cordio @scordio.github.io · 15/04/2026

Today, from the venue of Spring I/O, I'm open-sourcing a new library to make data-driven testing in Java a little bit easier: JUnit Converters! A collection of ready-to-use argument converters designed to streamline parameterized testing in JUnit 6 (and 5!) 🚀 🧵 stefano.codes/junit-conver...

stefano.codes

JUnit Converters

Collection of argument converters for JUnit parameterized testing

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JCON Conference @jcon.one · 19/02/2026

Excited for #JCON EUROPE 2026? See Tim te Beek at #JCON2026 in Cologne talking about 'Better Assertions with #AssertJ' Not all testing #libraries are equal. Sure they all run your #tests, but what happens when they fail? “Expected ‘true’, … 🎟️ 2026.europe.jcon.one/tickets Free for #JUG members

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Oliver Drotbohm @odrotbohm.de · 18/02/2026

Also coming in Spring Modulith 2.1 M2: support to run application module tests in combination with Boot's slice test feature. 🍃📦 docs.spring.io/spring-modul...

An explanation of how to combine Spring Modulith’s application integration testing capabilities with Spring Boot’s horizontal slice tests.

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Stefano Cordio @scordio.github.io · 19/02/2026

I attended Simon's workshop on Vaadin and Karibu Testing a couple of years ago, and I still remember the wow factor when I realized how easily you can have the entire stack in Java, with amazing end-to-end test coverage. Highly recommended stack, especially for enterprise and business applications!

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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 17/02/2026

I can finally share that @imagemagick.org was part of the @github.com Secure Open Source Fund in September of last year 🧙‍♂️🥂🎉🤩⭐. You can read all about it here: www.linkedin.com/feed/update/... and here: github-stories.com/2026/imagema...

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Stefano Cordio @scordio.github.io · 17/02/2026

📢 AssertJ joined the GitHub Secure Open Source Fund, a program that leveled up security across 67 open source projects. What changed for us: SHA pinning, immutable releases, incident response plan, and a mindset shift toward security awareness 🔒 The impact? More robust JVM assertions 🚀

AssertJ quote from the GitHub Secure Open Source Fund: "We shifted security from a stretch goal to a core requirement."

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Stefano Cordio @scordio.github.io · 16/02/2026

When an issue magically disappears because you haven't decided to fix it 🪄🐛🤔

The text of a ticket closure: "Closed because we haven’t decided to fix this in the last year. Please reopen if this is a mistake."

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Stefano Cordio @scordio.github.io · 04/02/2026

What an honor to meet one of my Spring heroes! 🍃

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Patrick Baumgartner @patbaumgartner.com · 04/02/2026

@odrotbohm.de talks today at the JUG in Zürich about "Domain-centric? Why Hexagonal And Onion Architecture Are Answers to The Wrong Question – And What To Ask Instead". Full house on a Wednesday! Thanks everyone for joining 🚀✨❄️

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JUnit Team @junit.org · 02/02/2026

Meet the #JUnit team in Cologne, Germany, in April at #JCON! @marcphilipp.de will give a talk about the road to JUnit 6 and Christian and Rien will be attending as well. Please use the following link to support JUnit (10% of the proceeds will go back to the project): pretix.eu/impuls/europ...

pretix.eu

Voucher redemption :: JCON EUROPE 2026

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Mark Paluch 👨‍💻,🎹&✈️ @mp911.de · 28/01/2026

First-class support for Spring Data JDBC in IntelliJ IDEA. Well done 👏🥳

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Simon Martinelli @martinelli.ch · 13/01/2026

🚀 New update: AssertJ support in Testcontainers Mailpit I just added AssertJ assertions to my Testcontainers Mailpit project. You can now write fluent assertions instead of low-level checks. 🔗 GitHub: github.com/martinellich... Feedback is welcome 👍

github.com

GitHub - martinellich/testcontainers-mailpit

Contribute to martinellich/testcontainers-mailpit development by creating an account on GitHub.

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Andres Almiray @andresalmiray.com · 13/01/2026

Closing the latest chapter in my career. Actively looking to get started with the next one. If you’re looking for a seasoned developer for DevRel, DevOps, and/or engineering roles, let’s chat!

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JUnit Team @junit.org · 06/01/2026

#JUnit 6.0.2 is released! 🐞 Bug fixes and enhancements since 6.0.1 docs.junit.org/6.0.2/releas...

docs.junit.org

Release Notes :: JUnit User Guide

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Mike Møller Nielsen @mike-programmer.bsky.social · 24/12/2025

This video is still relevant: “AssertJ — Use It Now!” 🚀 If you write Java tests, this one’s for you. Learn how AssertJ can make your assertions cleaner, clearer, and more powerful. Watch now: youtu.be/qn4AMKTPpg8 #Java #Testing #AssertJ #CleanCode #DevTips

youtu.be

AssertJ use it now

YouTube video by Mike Møller Nielsen

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