MockMvcTester vs RestTestClient: Which one Should You Use in Spring Boot 4?
A comparison of MockMvcTester and RestTestClient for testing Spring Boot web applications, exploring when to use each approach and their key differences.
Writing on software development and anything else I find interesting.
All of my long-form thoughts on programming, content creation, and more, collected in chronological order.
Spring Data AOT Repositories: Faster Startup and Build-Time Query Validation
Learn how Spring Data AOT Repositories move query processing from runtime to compile time, reducing startup times and memory usage, plus how to validate repository methods at build time.
What's New in Spring Framework 7 and Spring Boot 4
A comprehensive look at the new features in Spring Framework 7 and Spring Boot 4, including code examples and resources to help you get started
Stop NullPointerExceptions Before Production with Spring Boot 4's Null Safety
Discover how Spring Boot 4 and JSpecify annotations catch NullPointerExceptions at compile-time instead of runtime. Learn to implement @NullMarked and @Nullable for bulletproof Java code with practical examples.
Spring Boot 4's Bean Registrar: A Cleaner Way to Register Beans Programmatically
Learn how Spring Boot 4's new BeanRegistrar interface simplifies programmatic bean registration in Spring Framework 7. This tutorial demonstrates dynamic bean creation based on environment properties, conditional registration with complex logic, and performance optimization techniques. Discover when to use BeanRegistrar vs @Bean annotations with practical code examples and testing strategies...