For production, we need more logging features like file rolling or SMTP. Click here to leave it out, and I’ll talk about it later. J'ai un projet maven qui se construit sans problème à partir de la ligne de commande. For our example, we're using lombok-1.18.4.jar. This thing uses the Log4J library, after all, it needs to be used to record logs. See pom file carefully to know dependencies as well as resources for configuration files. Additionally, by default you can use any of the logging frameworks under the SLF4J API such as Logback (which is the default), Log4J2, and Java Util Logging in Spring Boot. There are some ways to do this operation but in this article, I want to explain how to configure Simple Logger SLF4J’s log levels. I have also created the lombok.config file at the root of my project directory in the parent folder, right next to the parent pom. The above logging configuration is sufficient for development. -->