I just released version 3.0.0 of "JSON:API for Spring HATEOAS". This is a major release with dependency updates to Spring Boot 4.0.0, Spring HATEOAS 3.0.0 and Jackson 3.

See https://github.com/toedter/spring-hateoas-jsonapi.

Version 3.0.0 removes all deprecated APIs from version 2.x.x. See the Migration Guide for details: https://toedter.github.io/spring-hateoas-jsonapi/3.0.0/reference/#migration-3-0-0

#java, #rest, #spring, #hateoas, #jsonapi

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json:api

GraphQL with Java and Spring https://leanpub.com/graphql-java by Andreas Marek and Donna Zhou is the featured book on the Leanpub homepage! https://leanpub.com #Java #books #career #technology

Learn first-hand from the founder of GraphQL Java and co-author of Spring for GraphQL how to develop GraphQL services in Java.

Find it on Leanpub!

With #SpringFramework 7.0.2 out today (https://spring.io/blog/2025/12/11/spring-framework-7-0-2-available-now), and #SpringBoot 4.0.1 out in 1 week, I guess I'll wait a bit to upgrade my projects.

Which is good, cuz I want to get my #Java #EventSourcing projection code complete before I embark on Upgrading All The Projects.

If you're serious about reducing lead time, rethink #PullRequests. They add async delays, inflate WIP & often fail to catch real issues. @javisan81 explains why trust-first teams review differently.

Read now: https://javapro.io/2025/10/29/pull-requests-code-reviews/

#SoftwareEngineering #Agile #CodeReview #Java

Wednesday Links - Edition 2025-12-10
https://dev.to/0xkkocel/wednesday-links-edition-2025-12-10-5bp1
#java #jvm #fixit #refactoring #streaming #cdc #materialized-views #architecture

Habe mal wieder einen Ausflug ins Backend gewagt und für das #JavaMagazin "Modularisierung pragmatisch – Anwendungen mit Spring Modulith" geschrieben.

👉 https://nilshartmann.net/a/spring-modulith-java-magazin

Viel Spaß beim Lesen... und beim Modularisieren 😊

#Java #Spring #SpringBoot #SpringModulith

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Architecture diagram showing modules of the example application

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Screenshot of VS Code showing an error message "Invalid reference to non-exposed type of module 'Inquiry'"

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Screenshot of IntelliJ's package explorer with annotated modules from Spring Modulith

Big Kotlin pack https://leanpub.com/b/kotlin_mm by Marcin Moskała is the featured bundle of ebooks 📚 on the Leanpub homepage! https://leanpub.com #Kotlin #Android #Java #ComputerProgramming #Engineering

The following 5 books are included in this bundle...
Kotlin Essentials, Functional Kotlin, Advanced Kotlin, Kotlin Coroutines, and Effective Kotlin

Find it on Leanpub!

Hands-On Java with Kubernetes https://leanpub.com/hands-on-java-with-kubernetes by Piotr Mińkowski is the featured book on the Leanpub homepage! https://leanpub.com #Java #Kubernetes #SoftwareEngineering

Build. Deploy. Scale.

Find it on Leanpub!

#fediHire #fedihelp
I'm still looking for a new #freelance #remote #project in #software #RnD.
I offer #agile (#team) #coaching or whatever you name it and a lot other stuff. I wouldn't reject any role which I already had, eg. Architect, TeamLead, Product Owner etc...
My skills reach from #Java #Kotlin #Swift #mobile or #backend #TDD #CICD pipelines, project setups or firefighting to #liberatingStructures and merging and splitting teams/departments and organising company wide initiatives.

My Twitch #Java live coding schedule this week is today (Monday), Wednesday, and Thursday starting at 8pm UTC.

Probably won’t stream on Tuesday so I can do final prep for my Testable Architecture talk on Wednesday.

https://jitterted.stream is the place!

I just released version 2.2.0 of "JSON:API for Spring HATEOAS". This is a minor release with 2 new features and dependency updates to Spring Boot 3.5.8.

See https://github.com/toedter/spring-hateoas-jsonapi

#java, #rest, #spring, #hateoas, #jsonapi

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json:api

I'll be adding this article (and enriching my talk on the topic) to my list of references. If you're interested in learning about event-sourcing from scratch (esp. in #Java), check out my Ted talk: https://ted.dev/talks/#event-sourcing-from-scratch-online-zoom-talk-(november-25%2C-2025)

Even if you’ve read the JEPs—have you used #RecordPatterns to refactor old-school branching logic? @manojnp shows how to turn bloated instanceof trees into readable, idiomatic #Java code with just records.

👉 https://javapro.io/2025/01/15/record-patterns-building-on-java-records/

#Refactoring #PatternMatching #CleanCode

New 📚 Release! Java Programming: Beginner to Intermediate by Gerry Byrne & David Wilson

Java Programming: Beginner to Intermediate is the ultimate resource for anyone who wants to learn Java fast and build real programming skills. Whether you’re a complete beginner, a career changer, or someone refreshing their knowledge, this book is designed to help you succeed.

Find it on Leanpub!

Link: https://leanpub.com/javaprogrammingbeginnertointermediate

#books #java #programming #javaprogramming #softwaredevelopment

On my #Java live coding stream today, when implementing the JDBC implementation of my Event Store, I talked about doing #TDD for Discovery and Design (learning about what the desired behavior should be), vs. implementing a known behavioral specification.

https://jitterted.stream

Instead of buying stuff during Black Friday that I don’t really need, I’m sponsoring open source #Java projects that I rely on. Today's donation is to Tatu Saloranta, the authot of the #Jackson JSON library (among other things!).

https://github.com/sponsors/cowtowncoder?sp=tedyoung

Stand-ups, #Kanban-Boards, Sprints – doch der echte Nutzen bleibt aus? Marin Niehues zeigt, warum Frameworks allein nichts verändern & wie hybride Ansätze mehr Wert schaffen können.

Was wirklich wirkt, abseits der Methode: https://javapro.io/de/agile-scrum-kanban-und-die-maerchen-die-wir-uns-ueber-wertschoepfung-erzaehlen/

#Java #Leadership #Agile #Scrum

Instead of buying stuff during Black Friday that I don’t really need, I’m sponsoring open source #Java projects that I rely on. Today's donation is to the Apache Software Foundation, my longtime companion throughout my career. #Maven is still my go-to build tool!

Yay, one big step closer to the release of #IntelliJIDEA 2025.3! Check out the release candidate: https://blog.jetbrains.com/idea/2025/11/intellij-idea-2025-3-release-candidate/

#Java #JDK25 #Junit6 #SpringBoot4

Instead of spending Black Friday buying stuff I don’t really need, I’m sponsoring open source #Java projects that I rely on. Next up is SDKMAN! (https://sdkman.io). While I don’t use it as often as JUnit or AssertJ, it helps me manage my huge variety of JDKs installed.

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

Hey there! I'm hiring an EM to help lead our JVM Ecosystem team! From build time to run time, this is an opportunity to work with some really awesome engineers on the lowest levels of the #Netflix stack.

My DMs are open!

#java #JVM

https://explore.jobs.netflix.net/careers/job/790312532064?microsite=netflix.com

Instead of buying more stuff that I don’t really need, I’m sponsoring open source #Java projects that I rely on, starting with #JUnit and #AssertJ (via core maintainers Joel and Stefano).

If I was a big company using Java, I’d be embarrassed at not sponsoring these projects.

#Tokyo

An amazing #city

The largest city in the world

...Not anymore

"With an estimated population of nearly 42 million residents, #Indonesia's capital #Jakarta soared from 33rd place to surpass #Japan's Tokyo, according to a new #UnitedNations report"

A mind boggling fact for you:

The population of #Java is about 155 million

The population of #Russia is about 145 million

Java is about 2/3 the size of #GreatBritain!

That's what rich volcanic soil does

https://www.nbcnews.com/world/rcna245798

#cities

Big Kotlin pack https://leanpub.com/b/kotlin_mm by Marcin Moskała is the featured bundle of ebooks 📚 on the Leanpub homepage! https://leanpub.com #Kotlin #Android #Java #ComputerProgramming #Engineering

The following 5 books are included in this bundle...

Kotlin Essentials, Functional Kotlin, Advanced Kotlin, Kotlin Coroutines, and Effective Kotlin

Find it on Leanpub!

Hi #Java friends! 👋

What tools do you use to visualize dependencies between your sources (package-level) in your project? 🤔

Thanks for any hints! 😊

My online talk on Tuesday, Nov 25 at 6pm UTC is my #Java based "Event-Sourcing from Scratch" talk. Details and _free_ registration at https://luma.com/dt9fc391

Join live to ask questions, or watch for the recording later.

Event Sourcing is the storing of state-changing decisions made within a part of the domain.

(noodling with my intro for my upcoming talk on event sourcing: https://luma.com/dt9fc391)

#EventSourcing #Java

Spring Boot 4.0 is out, upgrade and enjoy Boot modularization, portfolio-wide null-safety, first class support for Java 25, API versioning for web applications and more! https://spring.io/blog/2025/11/20/spring-boot-4-0-0-available-now

#spring #java

Java Clean Code Fundamentals https://leanpub.com/b/javacleancodefundamentals by Martin Hock is the featured bundle of ebooks 📚 on the Leanpub homepage! https://leanpub.com #ComputerProgramming #Java

Find it on Leanpub!

IntelliJ IDEA 2025.3 Beta has been published, it provides first class support for JSpecify nullability annotations that are used in Spring Boot 4.0 which will be released today. https://www.jetbrains.com/idea/nextversion/

#java #spring

#rust I now have code that gives me a list with 24 time zones, one for each full-hour offset from UTC. It's not nice, but my #Java version wasn't nice either (https://codeberg.org/dtanzer/tzsh/src/branch/main/java).

I'll push the rust version when at least a few things work.

On Tuesday, Nov 25 at 18:00 UTC, I'll be doing a 90-min online presentation of my #Java based "Event-Sourcing from Scratch" talk. Details and _free_ registration at https://luma.com/dt9fc391

Join live to ask questions, or watch for the recording later.

Insert "Java developers and ORM mapping" joke here.

#java #orm #hibernate

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Screenshot of a reddit post: "TIL that based on skeletal evidence, ancestral Neanderthals may have been able to hibernate"

#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 ideas and techniques. Use the code SEEMESPEAK to get an extra $100 off the registration at https://devnexus.com/

Refactoring Needs Empathy (h/t Andrea Goulet), but it also needs Skills.

At #DevNexus in March, I'll be showing my favorite techniques for #Refactoring in #Java using IntelliJ IDEA. Even if you're an experienced coder, I'll bet you'll still learn a few new things to try out...

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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".

On Tuesday, Nov 25 at 18:00 UTC, I'll be doing a 90-min online presentation of my #Java based "Event-Sourcing from Scratch" talk. Details and _free_ registration at https://luma.com/dt9fc391

Lots of room to sign up!

Join live to ask questions, or watch for the recording later.

On Tuesday, Nov 25 at 18:00 UTC (10a PST, 1p EST, 7p CET) I'll be doing a 90-min online presentation of my #Java based "Event-Sourcing from Scratch" talk. Details and _free_ registration at https://luma.com/dt9fc391

Join live to ask questions, or watch for the recording later.

On Tuesday, Nov 25 at 18:00 UTC (10a PST, 1p EST, 7p CET) I'll be doing a 90-min online presentation of my #Java based "Event-Sourcing from Scratch" talk. Details and _free_ registration at https://luma.com/dt9fc391

Join live to ask questions, or watch for the recording later.

After a year of work, we are happy to share that Spring Framework 7.0 GA is now available! https://spring.io/blog/2025/11/13/spring-framework-7-0-general-availability/

Time to celebrate, get a bit of rest and help the team to prepare Spring Boot 4.0 GA release planned November 20th 😊

#spring #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

High-Performance Java Persistence by Vlad Mihalcea is on sale on Leanpub! Its suggested price is $34.95; get it for $25.46 with this coupon: https://leanpub.com/sh/5CcxKgNd #Software #Java #Databases #Mysql #Oracle #Postgresql #SqlServer #SoftwareEngineering

Don't miss my new blog post in the Road to GA series to learn how the Spring team empowers Spring developers to make their Spring Boot 4 application null-safe, to reduce or remove the risk of NullPointerException and to solve "the billion dollar mistake"! https://spring.io/blog/2025/11/12/null-safe-applications-with-spring-boot-4

#spring #java