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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 Every Spring Developer Should Know About Jakarta EE by Ivar Grimstad @ Spring I/O 2025

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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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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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