Woo hoo, IntelliJ IDEA 2025.2.4 is out! (The release candidate's been working well, so happy to get the actual release...)

https://blog.jetbrains.com/idea/2025/10/intellij-idea-2025-2-4

#Java #IntellijIDEA

After #Log4Shell hit, I dreamed of writing a Java Logging book.
Beginner-friendly and full of what I’ve learned as a trainer.

Today, that dream became real.
@ManningPublications just launched my book in their MEAP program, and I’m incredibly proud and grateful.

After all these years at the ASF, it feels like a circle has closed.

Get it 50% off:

https://hubs.la/Q03Jv97D0

#log4j #java #programming #opensource

Dear Java Lazyfedi,

Does anyone have any suggestions for FOSS alternatives to Flyway and Liquibase? I'm looking for something that works like ActiveRecord's migrations support.

Requirements are:

* Has a Java API, I really don't want to have to use a command line tool
* Literally just "I will manage this collection of in-source-tree migrations for you using my own table in the DB" - so not Liquibase
* Uses SQL (or an abstraction that also supports arbitrary SQL) - so not Liquibase
* Supports rolling back changes (so not Flyway)
* Actual FOSS, not some freemimum crap (so neither Flyway or Liquibase)

TIA! x

#java #lazyfedi #sql

And we've released Spring Boot 4.0.0-RC1:

https://spring.io/blog/2025/10/23/spring-boot-4-0-0-RC1-available-now

Please give the RC1 a try, it's available on Maven Central to make that easier. We really appreciate your feedback!

#java #spring #springboot

Yesterday we've also released Spring Boot 3.5.7:

https://spring.io/blog/2025/10/23/spring-boot-3-5-7-available-now

#java #spring #springboot

PSA: Ich habe vor mehreren Jahren die Domain euregjug dot eu gekündigt. Weder sind es meine Inhalte auf der Webseite noch habe ich etwas mit dem aktuellen Registrar zu tun.

#Java #JUG

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 3.4.11 has been released and is now available from Maven Central.

https://spring.io/blog/2025/10/23/spring-boot-3-4-11-available-now

#java #spring #springboot

#DevNexus is one of the top community #Java and Cloud conferences, so come and see me and other great speakers present all the cool and useful things. Use the code SEEMESPEAK to get an extra $100 off the registration at https://devnexus.com/

I am so EXCITED (and honored) to be presenting at DevNexus in March 2026!!!

I'll be talking about one of my favorite coding activities: Refactoring #Java in IntelliJ IDEA! Even if you're an experienced coder, I'll bet you'll still learn a few new things to try out...

Alt...

Speaker graphic, with the dev/nexus conference name at the top (subheading: Enterprise, Java, AI and Developer Tools Conference). Next is "I'm speaking at DevNexus 2026: 'Clear Up Messy Code with Refactoring Maneuvers in IntelliJ IDEA'". Below that are the conference dates: March 4-6, 2026, in Atlanta Georgia, USA. Below is a picture of my and name "Ted M. Young".

Leanpub book LAUNCH 🚀 Spring AI for Your Organization: GCP Vertex AI Edition by Muthukumaran Navaneethakrishnan

Watch here: https://youtu.be/9EGUB-dQlv0

#books #leanpublishing #selfpublishing #booklaunch #programming #software #data #GPT #AI #Java

#DevNexus is one of the top community #Java and Cloud conferences, so come and see me and other great speakers present all the cool and useful things. Use the code SEEMESPEAK to get an extra $100 off the registration at https://devnexus.com/

I am so EXCITED (and honored) to be presenting at DevNexus in March 2026!!!

I'll be talking about one of my favorite coding activities: Refactoring #Java in IntelliJ IDEA! Even if you're an experienced coder, I'll bet you'll still learn a few new things to try out...

Alt...

Speaker graphic, with the dev/nexus conference name at the top (subheading: Enterprise, Java, AI and Developer Tools Conference). Next is "I'm speaking at DevNexus 2026: 'Clear Up Messy Code with Refactoring Maneuvers in IntelliJ IDEA'". Below that are the conference dates: March 4-6, 2026, in Atlanta Georgia, USA. Below is a picture of my and name "Ted M. Young".

@odrotbohm
and `java ---version` is another difference

#java

Oh, awesome. The output of `java --version` and `java -version` are not identical. 🙄 #java

#DevNexus is one of the top community #Java and Cloud conferences, so come and see me and other great speakers present all the cool and useful things. Use the code SEEMESPEAK to get an extra $100 off the registration at https://devnexus.com/

I am so EXCITED (and honored) to be presenting at DevNexus in March 2026!!!

I'll be talking about one of my favorite coding activities: Refactoring #Java in IntelliJ IDEA! Even if you're an experienced coder, I'll bet you'll still learn a few new things to try out...

Alt...

Speaker graphic, with the dev/nexus conference name at the top (subheading: Enterprise, Java, AI and Developer Tools Conference). Next is "I'm speaking at DevNexus 2026: 'Clear Up Messy Code with Refactoring Maneuvers in IntelliJ IDEA'". Below that are the conference dates: March 4-6, 2026, in Atlanta Georgia, USA. Below is a picture of my and name "Ted M. Young".

PerlOnJava now passes 239,400 tests from the standard Perl test suite — up from 150k just a month ago.
A big step toward full Perl 5 compatibility on the JVM.

🔗 https://github.com/fglock/PerlOnJava

#Perl #Java #JVM

Just realized I haven't announced this here yet - The 9th edition of my book "Java in a Nutshell" will be published by O'Reilly in 2026. Watch this space for an announcement of early access. #java #programming

Gotta love i18n’ed error messages: „Die Datenbank-Verbindung wurde nicht explizit geschlossen (jetzt in der Müllabfuhr)“ 😅 #java #garbagecollection

Alt...

A screenshot of a Java exception using an internationalized exception message translating "The connection was not closed by the application and is garbage collected" to "Die Datenbank-Verbindung wurde nicht explizit geschlossen (jetzt in der Müllabfuhr)".

From the Leanpub Blog:

Welcome to the Leanpub Launch video for Spring AI for Your Organization: GCP Vertex AI Edition by Muthukumaran Navaneethakrishnan!

https://leanpub.com/blog/leanpub-book-launch-spring-ai-for-your-organization-gcp-vertex-ai-edition-by-muthukumaran-navaneethakrishnan/

#books #leanpublishing #selfpublishing #booklaunch #programming #software #data #GPT #AI #Java

Leanpub book LAUNCH 🚀 Spring AI for Your Organization: GCP Vertex AI Edition by Muthukumaran Navaneethakrishnan

Watch here: https://youtu.be/9EGUB-dQlv0

#books #leanpublishing #selfpublishing #booklaunch #programming #software #data #GPT #AI #Java

Testing Spring Boot Applications Demystified by Philip Riecks is free with a Leanpub Reader membership! Or you can buy it for $9.00! http://leanpub.com/testing-spring-boot-applications-demystified #Java #Testing #AutomatedSoftwareTesting

https://devnexus.com/posts/runtime-efficiencies-and-spring-boot-with-dashaun-carter

Note the video on this page is wrong, should be https://youtu.be/VUpFdEkOzY4

#Java #SpringBoot

Testing Spring Boot Applications Demystified by Philip Riecks is free with a Leanpub Reader membership! Or you can buy it for $9.00! http://leanpub.com/testing-spring-boot-applications-demystified #Java #Testing #AutomatedSoftwareTesting

Spring AI for Your Organization by Muthukumaran Navaneethakrishnan is free with a Leanpub Reader membership! Or you can buy it for $18.99! http://leanpub.com/springai #Java #Ai #Postgresql #Gpt

I'm surprised that there wasn't more noise around the license change of #Liquibase from Apache License 2.0 to Functional Source License (FSL) in Liquibase 5.0.0.
https://github.com/liquibase/liquibase/releases/tag/v5.0.0

Is just nobody using it anymore? 😅

#Java #OSS #licensing

Yay! The new IntelliJ IDEA 2025.3 EAP 5 supports Spring Data JDBC's composite ID!

https://youtrack.jetbrains.com/issue/IDEA-376492/Spring-Data-JDBC-support-of-composite-Id

installing now...

#Java #IntelliJIDEA #Spring

Antwerp transit seems well used by locals, not just Devoxxians. On the tram the other evening a huge crowd got off at Sportpalaeis. Another popular stop is Noorderplaats. It’s strange though that some destinations seem quite unpopular. I’ve seen a lot of buses and trams heading to Geen Dienst, but they’ve all been empty.

#Devoxx #Java

Alt...

A bus stopped at a bus stop. The stop is along a combined bus/tram route with electrical wires overhead and tram tracks embedded in the pavement. There are sidewalks along each side, and rows of trees outside the sidewalks. The route sign on the front of the bus reads “GD - Geen Dienst”. Spoiler: “Geen Dienst” is Dutch for “Not in service”.

Good thing @odrotbohm’s workshop/talk is a long one for this long flight I’m on…

https://youtu.be/k3o1nSh3g2Q

#Java #DDD #Modulith #Spring

New #Java #refactoring video: I'm not completely happy with some names, so I change them to "honest & complete" - That makes them much longer and more verbose, but at least they say what the objects do now...

PeerTube: https://videos.devteams.at/w/n8TDBBWWPJxKaySi7yArxC
YouTube: https://youtu.be/i0ULT8iE9Xk

The recording of my yesterday‘s “Tactical Domain-Driven Design with #Java and #Spring” at #Devoxx is already up on YouTube… https://youtu.be/k3o1nSh3g2Q?si=HbcQbI7O0XkQaZxj ☕️🍃⚗️ #DDD #jMolecules

Clean Code Principles and Patterns, 2nd Edition by Petri Silen is on sale on Leanpub! Its suggested price is $14.90; get it for $8.94 with this coupon: https://leanpub.com/sh/mvztYsiI #ApiDesign #ComputerProgramming #Java #Javascript #Testing #SoftwareEngineering #Typescript

A big thank you to everyone who attended the JDK tools lab
@devoxx 🙏! If you want to try it later on, the content that @JosePaumard and I used is here:

https://github.com/java/lab-jdk-tools

Enjoy the rest of the conference!

#Java #JDK25 #OpenJDK #tools #handsonlab

btw, if you run a user group/meetup and want me to present any of my talks (on Testable Architecture, Event Sourcing, etc.) to your group (remotely or in person in the SF Bay Area), let me know!

See my Ted Talks page: https://ted.dev/talks

#Java #EventSourcing #JUnit #AssertJ

Starting off my @devoxx with Spring Debugger in #IntelliJIDEA by Marco Behler #Devoxx #SpringFramework #Java

Alt...

Marco Behler on stage at Devoxx.

Getting to Know IntelliJ IDEA by Trisha Gee and Helen Scott is on sale on Leanpub! Its suggested price is $30.00; get it for $27.00 with this coupon: https://leanpub.com/sh/KuBvkjWd #ComputerProgramming #Java #Software #Ides #AutomatedSoftwareTesting #Git

Tue, Oct 7th, 1:30pm – Tactical Domain-Driven Design with #Java and #Spring – https://m.devoxx.com/events/dvbe25/talks/6236/tactical-domain-driven-design-with-java-and-spring #DDD ☕️⚗️🍃📦2/5

As I am polishing slides for next week's #Devoxx, I found this slide being the common opener for all of my presentations recently. If you're interested in the topic of maintainable software with #Java and #Spring, make sure to check out the sessions below… ☕️🍃🧵 1/5

Alt...

A chart showing the complexity of software projects (y-axis) in relation to versions released, continuously growing as development moves through the versions. A marker points to the area before the 1.0 release, stating “Most teams focus on that.” Another marker pointing at the much larger area covering four more versions, stating “…while the challenge is actually this.”

Completed my two talks at dev2next.com! (Yes, they're Ted Talks.)

I've updated my talks page with the presentation slides and links to the relevant repositories: https://ted.dev/talks/

I'll be adding additional links and resources soon!

#dev2next #Java #JUnit

Stratospheric: From Zero to Production with Spring Boot and AWS https://leanpub.com/stratospheric by Tom Hombergs, Björn Wilmsmann, and Philip Riecks is the featured book on the Leanpub homepage! https://leanpub.com #Java #AmazonWebServices #CloudComputing #Aws #InfrastructureAsCode #Devops

From Zero to Production with Spring Boot and AWS. All you need to know to get a Spring Boot application into production with AWS. No previous AWS knowledge required.

Find it on Leanpub!

Some more #Java #refactoring: First, I simplify some unit tests, then I add a common interface for some objects that are all stages of a process. Feedback welcome!

Video on PeerTube: https://videos.devteams.at/w/orkDdvXUez84cdLysUAgfk
Or if you prefer YouTube: https://youtu.be/s6E1dSFHGxs

Testing Spring Boot Applications Demystified by Philip Riecks is free with a Leanpub Reader membership! Or you can buy it for $9.00! http://leanpub.com/testing-spring-boot-applications-demystified #Java #Testing #AutomatedSoftwareTesting

Just came across https://spring.io/blog/2025/07/22/spring-data-jdbc-composite-id which says that the Spring Data JDBC 4.0.0 will support composite IDs, which will be awesome for my event-sourced projects! (Currently available to try out with version 4.0.0-M4 or later.)

#Spring #SpringDataJdbc #Java #EventSourcing

New blog post: What's in a parameter name?

Frameworks like Spring MVC and Embabel often rely on method parameter names as a way to implement Convention over Configuration. But in Java and Kotlin, those names are not always available.

I explain the details in this post: https://poutsma-principles.com/blog/2025/09/25/parameter-names/

#Java #Kotlin #APIDesign #SpringFramework #Embabel

Testing Spring Boot Applications Demystified by Philip Riecks is free with a Leanpub Reader membership! Or you can buy it for $9.00! http://leanpub.com/testing-spring-boot-applications-demystified #Java #Testing #AutomatedSoftwareTesting