Hexagonal Architecture with Java and Spring

The term 'Hexagonal Architecture' has been around for a long time. But would you know how to implement this architecture style in actual code? This article provides such a way.

Why Immutables Are the Better Objects and How to Implement Them

Why are immutable objects a way to create safer software that is easier to maintain? And what are best practices to implement them? This article provides answers.

Mocking with (and without) Spring Boot

An intro to Mockito and how to use it with Spring Boot.

Bean Validation Anti-Patterns

Some thoughts about validation in general, Bean Validation in particular, and why I consider some applications of Bean Validation an anti-pattern.

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