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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.

What’s (New) With Spring Boot and Containers? By Matthias Haeussler / Eva Panadero @ Spring I/O 2025

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The Simplest Way to Build Resilient Applications by Giselle Van Dongen @ Spring I/O 2025

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Crafting a Self-Documenting Modular Monolith With DDD Principles (Theory Not Included) – Gregorio Palamà / Mattia Ciriolo @ Spring I/O 2025

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API Versioning In Spring Framework 7 by Rossen Stoyanchev @ Spring I/O 2025

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The Ultimate Showdown of Database Migration Tools by Pasha Finkelshteyn / Anton Arhipov @ Spring I/O

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Demystifying Spring Boot Magic by Patrick Baumgartner @ Spring I/O 2025

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Say Goodbye to Microservices, Say Hello to Self-Contained Systems by Simon Martinelli @ Spring I/O

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Testing Spring Boot @ConfigurationProperties

Making Configuration Properties Testable in Spring Boot One of Spring Boot’s most elegant features is its support for binding externalised configuration to strongly typed Java beans via @ConfigurationProperties. This makes managing application settings both expressive and maintainable. However, as with any other part of our code, we should ensure that these properties are tested — especially when they encapsulate non-trivial validation or logic. This Baeldung article on "Testing @ConfigurationProperties in Spring Boot" provides a comprehensive overview of how to do just that. The ... Read more

Secure, Test, Repeat: A Guide to Spring Security Integration Testing by Laurentiu Spilca @ Spring I/O 2024

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Testcontainers Support in Spring Boot

With SpringBoot 3.1, Spring Boot has introduced first-class support for Testcontainers during development time. Last year, Baeldung published an introductory article on how to use the now built-in Testcontainers support with Spring Boot. Read more
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