If you've ever wondered how exactly Maven plugins and extensions differ from each other, you might want to check out my latest article.

#buildtools
#cicd
#devops
#java
#maven
#softwaredevelopment

https://medium.com/maven-by-nature/whats-the-difference-between-maven-plugins-and-extensions-f58d39f3c978?sk=7e15350db4db6f587276a6f28b4b32eb

Other people always say the Java mascot looks like a weird penguin or gnome, but I've always seen it as a dishwasher tablet.

#Java #Programming

Spring Boot 4.1.0-RC1 available now

Notable new features include:

- Support for OpenTelemetry SDK environment variables
- HTTP Client SSRF Mitigation with InetAddressFilter
- Support for LazyConnectionDataSourceProxy

https://spring.io/blog/2026/04/23/spring-boot-4-1-0-RC1-available-now

#spring #springboot #java

Spring Boot 4.0.6 available now

https://spring.io/blog/2026/04/23/spring-boot-4-0-6-available-now

With 8 CVE fixes in it, upgrade now!

#spring #springframework #java

Spring Boot 3.5.14 available now

With 6 CVE fixes in it. Upgrade now!

https://spring.io/blog/2026/04/23/spring-boot-3-5-14-available-now

#spring #springboot #java

What you need to know about MCP servers - with Java and spring-boot by Peter Isberg is a new release on Leanpub!

Link: https://leanpub.com/wyntka-mcpservers-withjava

#books #ebooks #newreleases #leanpublishing #selfpublishing #java

In dieser Serie erwarten dich kleine, aber knifflige Java-Code-Schnipsel, die auf den ersten Blick völlig harmlos aussehen und genau deshalb besonders gefährlich sind. Denn manchmal wird Code „moderner“ oder „schöner“ umgeschrieben, obwohl sich dabei unbemerkt das Verhalten ändert. Und g

https://magicmarcy.de/tricky-java-2

#Tricky #Java #Stream #Schleife #Arrays #Refactoring #String

Check out what the awesome @teapot418 sent me.

Paper cheat sheet to complement my talk "Painless organisation and maintenance of Apache Maven Builds" that I will give tomorrow @jcon

Check it out

👉 https://schedule.jcon.one/2026/session/1051725

#java #maven #JCON2026

Exploring Java Libraries: A Developer's Guide (Volume 2): Advanced Text Processing, AWT, Swing GUI, and Accessibility in Java by Solis Dynamics is a new release on Leanpub!

Link: https://leanpub.com/java-libraries-guide-2

#books #ebooks #newreleases #leanpublishing #selfpublishing #computer_programming #software #java #software_architecture

Compose & Android Deep Dive Package (Jetpack Compose internals + Manifest Android Interview) by Jaewoong and Jorge Castillo is the featured bundle of ebooks 📚 on Leanpub!

Link: https://leanpub.com/b/android-deep-dive-package

#computer_programming #android #kotlin #engineering #software #software_engineering #software_architecture #java

Jetpack Compose internals by Jorge Castillo is on sale on Leanpub! Its suggested price is $49.99; get it for $17.50 with this coupon: https://leanpub.com/composeinternals/c/LeanPublishingDaily20260416 #Software #ComputerProgramming #Java #Kotlin #SoftwareArchitecture

More live coding #EventSourcing in #Java notes...

This stream was working on the new Projector design, with some good discussion around Concurrency and Consistency.

Also demonstrated my "Reverse Olive Test Maneuver" 🫒

https://ted.dev/articles/2026/04/15/live-coding-journal-apr-15-2026/

RE #JSpecify and #Nullaway…

This #Maven plugin works as promised, nice:

https://github.com/making/nullability-maven-plugin

#Java

Someone should acquire #Sun^H^H^H Oracle Labs.

Or #Oracle should spin it out as a separate company.

I would love to see the #Graal ecosystem be an independent player in the Java/managed runtime space.

There is too much #Java value locked up in a company that seems to be competing with itself.

Elegant Design Principles by Narayanan Jayaratchagan is free with a Leanpub Reader membership! Or you can buy it for $19.00! https://leanpub.com/elegant_design_principles_fsd #ObjectOrientedProgramming #ComputerProgramming #Java #SoftwareArchitecture #FunctionalProgramming

So, #Microsoft says Co-Pilot is a tool for entertainment and the other #AI company nobody talks about sounds like this

> Generative AI tools, by their nature, make it easy to create large quantities of plausible-looking code, with plausible-looking tests, which is nonetheless incorrect or, even if it is correct, is poorly designed and therefore difficult to maintain.

This is from #Oracle in there “OpenJDK Interim Policy on Generative AI”

https://openjdk.org/legal/ai

#OpenJDK #Java #Doppeldenk

I'll be doing some of the work on my live coding stream on Fridays, starting April 10th at 12pm PDT (7pm UTC). That'll be a short, 1-hour stream, due to other commitments. Future streams will be ~3 hours and you'll be able to AMA on #Java, #Spring, etc.

https://jitterted.stream/

A Short Guide to Naming by Tim Ottinger is free with a Leanpub Reader membership! Or you can buy it for $5.00! https://leanpub.com/naming_shortguide #ComputerProgramming #Python #Javascript #Java #WebDevelopment #Refactoring

@xilerk Good catch! This command did the trick:

$ mvn -D versions.outputLineWidth=${COLUMNS} versions:display-dependency-updates

Of course, ${COLUMS} could be set to some arbitrary huge value to help better ensure single line per dependency.

Thanks a bunch for the suggestion! :-)

#Maven #Java #Programming

This is not easily parsed by machines (or even humans). Some version numbers are on the same line, others are on a separate line.

There's extraneous and unneeded info.

And there's no way to influence the appearance of the output. For example, the ps command as the -w flag to explicitly set wide text output mode.

#Maven #Java #Programming

Alt...

Screenshot of `mvn versions:display-dependency-updates`

My Java Modules with @ASFMavenProject (4) series continues!

Cleanly separate API and implementation in Java modules — and why mixing both is a common antipattern.

https://maven.aschemann.net/blog/2026/03/26/api-and-implementation/

#Java #Maven #JavaModules #ApacheMaven

Alt...

Blog Series about Java Modules with Maven 4: "Separating API and Implementation" — using dedicated modules and requires transitive in Java Modules with Maven 4. With a portrait of the author.

Another stream, another set of notes. So much "new"!

I try out a new design for Projectors, splitting EventConsumer into two pieces. Test-driving shows how it's about design exploration, not just writing tests.

https://ted.dev/articles/2026/04/06/live-coding-journal-apr-6-2026/

#Java #EventSourcing #TDD

Notes from my #Java #EventSourcing work, where I looked at event consumers that only get events they're interested in.

Struggled with Java's MethodHandle (docs could be better!), but otherwise works well.

Thoughts about Projector design.

Read more at: https://ted.dev/articles/2026/04/02/live-coding-journal-apr-2-2026/

Happy Birthday, Spring Boot!

https://spring.io/blog/2014/04/01/spring-boot-1-0-ga-released

#java #spring #springboot

This was all triggered by new functionality that I want to add: the ability to set a date/time when concert tickets go on sale that is separate from when the concert was scheduled (entered into the system).

Read all about it at https://ted.dev/articles/2026/03/30/live-coding-journal-mar-30-2026/

#EventSourcing #Java

#Oracle zeigt heute mal wieder, was ihnen die #Java Community bedeutet, hm?

https://youtube.com/shorts/zvmxZYIA13Q

Project #Leyden Project #Valhalla #OpenJDK
And most importantly: The people behind it.

Sharat Chander invites you to meet #Oracle, top speakers and the global #Java community at #JCON2026.

🎟️https://2026.europe.jcon.one/tickets

Want some Technical Coaching or a #Java Talk (Event-Sourcing, Testing)?

I'm looking to do meetup/user group presentations or technical coaching the week of April 27, and in June so I don't have to fly all the way back home, just to fly back again a soon after.

I love #Java generics (when I get them right, which can take me a while!) and find varargs really useful when refactoring, but they do NOT play well together. Ugh. Guess I'll create an overloaded method to take a List<T> instead.