Today the good people of the world commemorate the passing of Google Reader thirteen short years ago on July 1, 2013. To honor their memory (and in lieu of flowers) please add an RSS/Atom/JSON feed to your web site and keep building a web that connects people in meaningful and positive ways.

Students: Want to attend #dev2next for free? 🎓 We're offering 25 free passes for full-time students. Attend technical sessions, learn from industry experts, connect with developers and architects, and explore what's next in software engineering. 🔗 www.dev2next.com/student #StudentPass #Software

🍃 I Can See Clearly Now: Observability of JVM & Spring Boot 2-3-4 apps by @jonatan-ivanov.bsky.social and @tommyludwig.bsky.social @ Spring I/O 2026 ▶️ Video: youtu.be/CForWeFM8aI 🔗 Slides: speakerdeck.com/jonatan_ivan... 🛠️Repo: github.com/jonatan-ivan... #springio26

I Can See Clearly Now: Observability of JVM & Spring Boot 2-3-4 apps @ Spring I/O 2026

YouTube video by Spring I/O

youtu.be

Made very few changes to the latest build and was thinking maybe I'll be able to ship this one without incrementing the shame version (last number in a version number) and 2 minutes into testing, it's already getting bumped.

Making Maven Users Use JSpecify/NullAway More Easily with the Nullability Maven Plugin ik.am/entries/900/en

Making Maven Users Use JSpecify/NullAway More Easily with the Nullability Maven Plugin - IK.AM

This article introduces how to introduce JSpecify and NullAway in Maven and simplify the configuration with the Nullability Maven Plugin.

ik.am

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...

JUnit Converters

Collection of argument converters for JUnit parameterized testing

stefano.codes

Hey Spring fans 🍃 My book "Testing Spring Boot Applications" is in early access with @manning.com. We made a short video to tell you all about it: www.youtube.com/watch?v=aAFK... It's 50% until April 16th with the promo code MLGarniermoiroux. Check it out: hubs.la/Q0473JRG0

Testing Spring Boot Apps Without Losing Your Mind

YouTube video by Manning Publications

youtube.com

I'll be speaking together with @tommyludwig.bsky.social at @springio.net 2026 on Apr 13-15. Let us know if you will be there, you can meet us at the Spring both or after our talk! #springio26 2026.springio.net/sessions/i-c...

the next Portland Java User Group meetup is Tuesday April 14 This month’s topic is: AI Assisted Software Development Presented by: Sean Sullivan @tinyrobots.bsky.social

Spring Boot 4.1.0-M3 has is available now! spring.io/blog/2026/03...

Spring Boot 4.1.0-M3 available now

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

spring.io

Friends! You like my 3-hour conference talks about Spring stuff? Then you'll love my new project, the "Testing Spring Boot Applications" book with @manning.com ! It's in early access. Read the first four chapters now, get the full book on release. It's 50% off until April 2nd: hubs.la/Q0473JRG0

Testing Spring Boot Applications - Daniel Garnier-Moiroux

@‌SpringBootTest, MockMvcTester, SpringExtension, and the rest of the Spring Boot testing toolbox are incredibly powerful weapons—once you learn how to wield them. Testing Spring Boot Applications in...

hubs.la

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 4.0.4 has been released and is now available from Maven Central. spring.io/blog/2026/03... I hope it's not 404ing. #java #spring #springboot

Spring Boot 4.0.4 available now

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

spring.io

🚀 Datasource Micrometer v1.4.0 and v2.2.0 are now available on Maven Central! Highlights: • SPRING_PROXY is now the default proxy strategy • Proper support for Spring Cloud refresh scope with HikariCP Release Notes: github.com/jdbc-observa... #springboot #micrometer #observability #jdbc

v1.4 and v2.2 Release Notes

Micrometer Observation API instrumentation and Spring Boot 3 Auto-Configuration for JDBC APIs - jdbc-observations/datasource-micrometer

github.com

When I tell people I'm a software engineer, I'm sometimes asked: "how many computer do you have?". Well, I have a laptop, a Rasperry Pi and uhm, well, it depends... (Also, exactly when does this count as an addiction? 😃)

Reminder to sign up for the pre-conference observability workshop with the Micrometer team at Spring I/O

Spring I/O@springio.net · 7mo ago

🔍 Learn how to instrument your app for metrics, traces & logs, integrate with OpenTelemetry, and troubleshoot faster with real code samples. Join our hands-on "Observability with Micrometer & Spring Boot 3 + 4" pre-conference workshop with @jonatan-ivanov.bsky.social & @tommyludwig.bsky.social g

The next @seattlejug.bsky.social event is about @brjavaman.bsky.social helping you to turbocharge your career! luma.com/b0ei556v?utm... www.meetup.com/seajug/event...

The Reputation Formula: Turbocharge Your Developer Career · Luma

Get ready to level up your career in software development with the secret sauce just for developers - the "Reputation Formula" that can skyrocket your…

luma.com

I'll be talking in April at Spring I/O 2026 about the new stuff in Spring Boot 4. Looking forward to it! 2026.springio.net/sessions/spr... @springio.net #spring #springboot

And that’s a wrap on #Devnexus 2026! 🎉 Huge thanks to our attendees, speakers, sponsors, and volunteers for making this year unforgettable. The energy, learning, and community are what make it special. 🤩 What were your favorite moments? See you next year!🚀

If you are interested in Observability and you are at @devnexus.bsky.social, please consider my talk today: devnexus.com/events/i-can...

I Can See Clearly Now: Observability of JVM & Spring Boot 2-3-4 apps

devnexus.com

My talk is tomorrow @devnexus.bsky.social, please consider coming if you are interested in Observability. devnexus.com/events/i-can... Also, you can collect my card if you are participating in the card game.

The next @seattlejug.bsky.social event is "Building Reliable workflows in Java": Meetup: www.meetup.com/seajug/event... Luma: luma.com/wzzmruqe?utm...

Building Reliable workflows in Java, Tue, Feb 24, 2026, 6:00 PM | Meetup

**Details** So you have a new Workflow in your application. Let's say that it has 20 steps in the workflow * What happens if the instance handling the workflow goes down *

meetup.com

tracing 1.7.0-M3 has been released! Check out the changelog at https://github.com/micrometer-metrics/tracing/releases/tag/v1.7.0-M3

micrometer 1.17.0-M2 has been released! Check out the changelog at https://github.com/micrometer-metrics/micrometer/releases/tag/v1.17.0-M2

Datasource Micrometer 1.3.1 & 2.1.1 are out 🎉 Fixed a silly typo: postgres → postgresql This is what patch versions are for 😄 #SpringBoot #Observability #Micrometer #JDBC

The new versions of Datasource Micrometer (v1.3.0 and v2.1.0) are now available in start.spring.io. Selecting “OpenTelemetry” in addition to “Datasource Micrometer” will automatically add the new OpenTelemetry module. github.com/spring-io/st... #SpringBoot #Observability #Micrometer #OpenTelemetry

Spring Initializr

Initializr generates spring boot project with just what you need to start quickly!

start.spring.io

🚀 Datasource Micrometer "v1.3.0" (Boot 3.x) and "v2.1.0" (Boot 4.x) are out on Maven Central! ✨ Initial OpenTelemetry Semantic Conventions support via "datasource-micrometer-opentelemetry" module. 📖 Docs: jdbc-observations.github.io/datasource-m... #SpringBoot #Micrometer #OpenTelemetry #jdbc

v1.1.0 of the Mill Build Tool for #Java #Scala and #Kotlin is out, with support for declarative builds and single-file scripts. Check it out! mill-build.org/blog/17-simp...

Instrumenting JDBC Operations in a Spring Boot Application with Datasource Micrometer ik.am/entries/894/en

Instrumenting JDBC Operations in a Spring Boot Application with Datasource Micrometer - IK.AM

In this article, we show how to use Datasource Micrometer with Spring Boot to instrument JDBC operations and visualize SQL logs, traces, and metrics in Grafana.

ik.am

🔍 Learn how to instrument your app for metrics, traces & logs, integrate with OpenTelemetry, and troubleshoot faster with real code samples. Join our hands-on "Observability with Micrometer & Spring Boot 3 + 4" pre-conference workshop with @jonatan-ivanov.bsky.social & @tommyludwig.bsky.social g

Apparently the Cinema didn't joke when they said: it's popcorn day, bring your own bucket and we will fill it with popcorn for $5. (That's 20L of popcorn.) (Or 5 gallons.)