Write command-line tools in Java and build their native executables locally or with GitHub Actions.

Integrate P6Spy with Spring to log SQL queries for better debugging and performance analysis.

My preferred question, and my detailed answer, to interview Spring developers.

YouTube video by Devoxx France

Florian Beaufumé, architecte logiciel et expert Java indépendant sur Toulouse

Optimize and troubleshoot your persistence layer with Hibernate logs and metrics.

Use sequence generated identifiers to improve the performance of your JPA inserts for multiple entities.

Overview of the main new test features and changes of Spring Boot 4.

Overview of the main new features of Spring Boot 4 and migration tips with OpenRewrite.

Integrate MCP clients or servers in your Spring Boot applications with Spring AI.

Implement a chatbot with Spring AI that supports conversations and function calling.

Get started with Spring AI and Ollama: ask questions, process documents, use structured output, measure token usage and more.

A comparison of thread-safe and non-thread-safe utility classes and how to correctly use them in multithreaded Java applications.

Learn how to quickly find the line of code in your Hibernate application that causes a given SQL query.

A selection of short and practical best practices for JPQL.

Custom JUnit 5 extensions that can improve the performance and reliability of your Spring integration tests.

Improve your JPA performances with fetch or entity graph to reduce the number of queries used to load multiple related entities.

A simple cheat sheet with Java, Kotlin and TypeScript code samples.

A selection of short and practical tips for Spring Boot applications.

A selection of short and practical tips for Spring Boot applications.

A selection of fun or interesting Java oddities.

Improve Spring Boot integration tests coverage, reliability and performances using opinionated practices and tips.

Why choose between H2 and Testcontainers for the database of your Spring Boot tests when you can have both?

Improve the Spring Boot logging of web requests with a simple but useful access log filter.

Simplify user authentication in Spring tests with standard security annotations or even your own.