spring | Björn Wilmsmann

Let’s talk digital.

I’m an independent IT consultant and entrepreneur in the Internet and software business. I’m interested in design, enterprise applications, web apps and SaaS products. I design and develop business solutions and applications. I help companies in terms of software quality and knowledge transfer, e.g. with Angular and Spring Boot.

Spring Boot 4 & Jackson – A Migration Guide

One of the more significant library updates that come with Spring Boot 4 is Jackson 3, which is the default JSON processing library for Spring Boot. If you're using Jackson heavily in your application, particularly when it comes to customising its behaviour, chances are you'll need to adapt your code to the new version To help you with this transition, software engineer and Spring developer advocate Dan Vega has published this article on the subject of Jackson 3 in Spring Boot 4: JsonMapper, ...

Björn Wilmsmann

my blog. for you.

Let’s talk digital.

Spring Boot 4 & Jackson – A Migration Guide

Spring for Apache Kafka the Advanced Features by Tim Van Baarsen & Kosta Chuturkov @ Spring I/O 2025

Unlocking the Unknowns: Cryptography Essentials for Spring Developers by Laurentiu Spilca @ Spring I/O 2025

Life With Spring Boot Inside a Monorepo by Fabio Mangione / Peter Laird @ Spring I/O 2025

Improving Spring Boot Test Efficiency by Sergei Chernov @ Spring I/O 2025

Selling Maintainability by Tom Hombergs @ Spring I/O 2025

Modular RAG Architectures With Java and Spring AI by Thomas Vitale @ Spring I/O 2025

Cause of Death: Spring Data JPA by Thorben Janssen @ Spring I/O 2025

Building 12-Factor Spring Boot Applications: Simplicity, Scalability, and Best Practices by Andrew Fawcett @ Spring I/O 2025