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

Here is the new #JavaFX #LinksOfTheWeek, published on https://www.jfx-central.com/links.

Thanks to
Steve Hannah
Viktor Karpyuk
Striking_Creme864
Catherine Edelveis
Johannes Rabauer
Ryan Jarvinen
Olivier Pillods

Happy reading, and have a lovely #Java weekend!

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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

I published the first release of MelodyMatrix, a #JavaFX desktop app that lets you experience music in a new way with real-time MIDI recording, multiple visualization views, and powerful playback features. Together with Steve Hannah, the creator of #jDeploy, we finetuned the project and GitHub Actions to build V1.0.0 live on camera!

You can watch the full video on YouTube:
https://www.youtube.com/watch?v=_-IL7uHalIU

More information in this blog post:
https://webtechie.be/post/2026-04-16-first-release-of-melodymatrix-with-jdeploy/

#MelodyMatrix #Java #LookAtMusic

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.

#InfoQ dives deep into #SpringFramework 7 & #SpringBoot 4 with the team behind the code.

🛠️ Key Focus: the shift toward core resilience by integrating features such as retry and concurrency throttling directly into the framework, alongside the performance benefits of modularizing auto-configurations.

🔗 Read now: https://bit.ly/3OIoz6W

#Java #AIcoding #Microservices #SoftwareDevelopment

New candidate JEP: 534: Compact Object Headers by Default: https://openjdk.org/jeps/534 #openjdk #java

Do you feel like my latest Leyden blog post about the AOT Cache in Java was too heavy?

Don't worry, I have a shorter version: https://developer.ibm.com/articles/java-project-leyden/

#Java #OpenJDK #Leyden #AOTCache #Performance #Optimization

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

Here is the new #JavaFX #LinksOfTheWeek, published on https://www.jfx-central.com/links.

Thanks to
No-Security-7518
@leewyatt
@dlemmermann
Hidekazu Kubota
Daniel Harris

Happy reading, and have a lovely #Java weekend!

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OpenJDK Interim Policy on Generative AI

https://openjdk.org/legal/ai

#OpenJDK #Java

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

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

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/

Here is the new #JavaFX #LinksOfTheWeek, published on https://www.jfx-central.com/links.

Thanks to
PDFSam
@dlemmermann
@hansolo_
@foojay

Happy reading, and have a lovely #Java weekend!

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I wrote an article for JAVAPRO about the Foreign Function and Memory (FFM) API, added in #Java 22, and how it got used to add a new and better plugin to @pi4j

You can read it here:
https://javapro.io/2026/04/01/the-ffm-api-openjdk-changed-the-game-for-native-interactions-and-javaonraspberrypi/

#JavaOnRaspberryPi

People keep asking me about these badges…
especially the ribbons.

Yes, there’s a bit of “catch ’em all” 😄
But they actually do something simple: they start conversations.

You see a topic → you talk → something interesting happens.

That’s the real value of in-person conferences.

That’s what JCON EUROPE 2026 is about.

Join us in April in Cologne: https://2026.europe.jcon.one/

#Java #JCON #Community

ApproveJ 1.6.0 is here 🚀

✨ Inline Value Updates update approved value in your test source
📸 Enhanced Visual Feedback with diff
🤖 AI Assisted Reviews

👉 https://approvej.org
🔗 Full Changelog: https://lnkd.in/eyTtdR_3

#ApproveJ #Java #SoftwareTesting #OpenSource #VisualTesting #IntelliJ #DX #CleanCode

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ApproveJ's image comparison view in IntelliJ. Received screenshot on the left, difference image in the middle and previously approved screenshot on the right.

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've released the Distributed Systems Simulator v1.1.0! https://foo.zone/gemfeed/2026-03-31-distributed-systems-simulator-part-1.html - It now also can simulate the Raft consensus protocol! #java #distributedsystems #raft #raftconsensus #simulator #release

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.

On my #Java stream last week, I had some frustration with Avro for event payload serialization and decided that JSON was just fine (in terms of performance).

I had thoughts about Projections as Caches and a question around IDs being required in events.

https://ted.dev/articles/2026/03/25/live-coding-journal-mar-25-2026/

Here is the new #JavaFX #LinksOfTheWeek, published on https://www.jfx-central.com/links.

Thanks to
Kevin Rusforth
@APIdia
@gluonhq
@eitch
@lottie4j
@dlemmermann
Lee Wyatt

Happy reading, and have a lovely #Java weekend!

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Big Kotlin pack by Marcin Moskała is the featured bundle on Leanpub!

Link: https://leanpub.com/b/kotlin_mm

#Kotlin #Android #Java #ComputerProgramming #Engineering

Spring Boot 4.0.5 available now

#java #springboot #springframework

https://spring.io/blog/2026/03/26/spring-boot-4-0-5-available-now

More live coding #Java and #EventSourcing:

I dealt with "external" and "parameter" validation (I didn't implement the third type: "internal" validation) of scheduling conflicts for Concerts.

I also pondered minimal consistency boundaries.

Notes are at: https://ted.dev/articles/2026/03/24/live-coding-journal-mar-24-2026/

Check out what's new in the #Spring community 👉 https://bit.ly/3NMwcbY

The third milestone releases of: Spring Boot, Spring Security, Spring Integration, Spring AI and Spring AMQP; along with the second milestone releases of Spring Data and Spring for Apache Kafka.

#Java #SpringBoot #SpringData #SpringSecurity #SpringAI #SpringVault #ApacheKafka