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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.

Hexagonal Architecture in Practice, Live Coding That Will Make Your Applications More Sustainable by Julien Topçu @ Spring I/O 2025

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Practical Agentic RAG with Spring AI in Modern Enterprise Applications by Dan Dobrin @ Spring I/O 2025

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Null Safety in Java with JSpecify and NullAway by Sébastien Deleuze @ 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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Code Smarter, Not Harder: AI-Powered Dev Hacks for All by Dan Vega @ Spring I/O 2025

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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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Spring I/O 2025 Keynote

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On HTML Attributes and Properties

In his insightful article, HTML attributes vs DOM properties, Jake Archibald delves into the often-overlooked distinctions between HTML attributes and DOM properties. While modern frameworks often abstract much of this complexity, a clear understanding of these differences is invaluable, especially when working directly with the DOM or developing custom elements. Read more

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
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