Spring Framework uses Bubble Sort—on purpose.
New blog post: why "inefficient" algorithms can sometimes be the right choice, if you understand your constraints.

https://poutsma-principles.com/blog/2025/04/29/bubble-sort-in-spring/

#Spring #Java

Dive into the latest releases from #Spring 👉 https://bit.ly/3EJAUTq

First release candidates of Spring Boot, Spring Data 2025.0.0, Spring Security, Spring Authorization Server, Spring Session, Spring Integration, Spring Modulith & Spring Web Services.

#Java #SpringBoot #SpringData #SpringSecurity #SpringModulith #SpringVault #SpringFramework

You can look at the #Java code so far at
https://github.com/jitterted/jitterticket-event-sourced

_Event-Sourcing Live Coding_

I've been live coding an example #EventSourcing app in #Java (via #TDD) w/o an ES library.

This week I'll continue to code the "Time-Traveling Event Viewer" to view the state at any point in time.

Join me Mon-Thur 18:00 UTC https://jitterted.stream

Efficient IDE use for developers and power users: Boost your IntelliJ IDEA productivity. Windows && Linux edition. http://leanpub.com/courses/leanpub/ide_efficiency by Stijn Dejongh and Tim Schraepen is the featured online course on the Leanpub homepage! https://leanpub.com #ComputerProgramming #Java

And Spring Boot 3.4.5 has been released yesterday, too: https://spring.io/blog/2025/04/24/spring-boot-3-4-5-available-now

#java #spring #springboot

A medium CVE has been identified in Spring Boot, affecting all versions up from 2.7.x. Fixed versions have been released yesterday, so it's time to upgrade folks!

https://spring.io/security/cve-2025-22235

#java #spring #springboot

Stratospheric - From Zero to Production with Spring Boot and AWS http://leanpub.com/courses/leanpub/stratospheric by Philip Riecks, Björn Wilmsmann, and Tom Hombergs is the featured course on the Leanpub homepage! https://leanpub.com #AmazonWebServices #Java #SoftwareArchitecture #SoftwareEngineering #CloudComputing

LIVE CODING STREAM THIS WEEK

After an awesome time at #ExploreDDD, I'm back home and ready to continue working on JitterTix, the example #EventSourcing app in #Java, #TDD, a tiny bit of #SpringBoot and no other libraries (well, a few small ones, but not for the EventSourcing).

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/nrwegY4T #ApiDesign #ComputerProgramming #Java #Javascript #Testing #SoftwareEngineering #Typescript

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 #books #ebooks

Ich grübel ja über eine #JUG Tour nach… So ernsthaft mal mit dem Rad durch Deutschland und anbieten, positive darüber zu ranten, warum mir #Java Skripte, Python, HTML + JavaScript ohne Framework-Gescheiß und eine echt coole Datenbank im letzten den Glauben an Software-Engineering ohne AI und Nippes erhalten haben… Würd sich das jemand anhören wollen?

Stratospheric - From Zero to Production with Spring Boot and AWS http://leanpub.com/courses/leanpub/stratospheric is the featured online course on the Leanpub homepage! https://leanpub.com #AmazonWebServices #Java #SoftwareArchitecture #SoftwareEngineering #CloudComputing

#PairProgramming (if you'd like to) #TDD #JUnit5 #Kotlin #Java

_Event-Sourcing Example App_

Join me in 1 hour (18:00 UTC) as I continue work on JitterTix, an example app demonstrating how to do #EventSourcing in #Java (and #SpringBoot) without ES libraries, but with #TDD.

https://jitterted.stream

Source code is at https://github.com/jitterted/jitterticket-event-sourced

_Event-Sourcing Example App_

I've been having a lot of fun working on JitterTix, an example app demonstrating how to do #EventSourcing in #Java (and #SpringBoot) without ES libraries.

Join me at 18:00 UTC today, at https://jitterted.stream. Repo is https://github.com/jitterted/jitterticket-event-sourced

_Event-Sourcing Example App_

I've been having a lot of fun working on JitterTix, an example app demonstrating how to do #EventSourcing in #Java (and #SpringBoot) without ES libraries.

Join me at 18:00 UTC Wed & Thur, at https://jitterted.stream. Repo is https://github.com/jitterted/jitterticket-event-sourced

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 #books #ebooks

#Java 24, avoid import #tariffs like a pro with #JEP 458, 476 and 477…

https://openjdk.org/jeps/458
https://openjdk.org/jeps/476
https://openjdk.org/jeps/477

Alt...

A screenshot of a Java program that uses the Neo4j JDBC driver to read records from a database, 3 panes, left to right: * On the class path, listing individual imports * On the module path, using preview feature module import declaration (JEP 476), omitting individual imports * On the module path, as implicit declared class, omitting the the java.base import (there by default), and java.sql (required by neo4j jdby anyway)

_JitterTix Event-Sourcing Example_

This week I'll continue working on my JitterTix, an example app for demonstrating how to do #EventSourcing in #Java without any ES libraries.

Join me at 18:00 UTC Mon-Thurs, at https://jitterted.stream. The repo is https://github.com/jitterted/jitterticket-event-sourced

1. Example code for my "TDDing Event-Sourcing" talk (hope it gets accepted at some future conferences!)

2. A platform for experimenting with different ways of implementing event-sourcing in #Java (w/o libraries)

3. Folks in my community asked for an example! (❤️ my community)

_JitterTix Concert Ticketing System_

On my #Java live coding stream this week I've been working on a simple concert event ticketing system that is based on #EventSourcing. I have several reasons I've been doing this (putting my #TDD Game on hold).

People: “Don't use #Lombok’s (At)Data on entities! equals(…) and hashCode() will be wrong!” (For the record: I agree.)

Also people: “Here's how you use #Java records to implement entities.”

🤷‍♂️