Java SonarQube: Unresolved imports/types have been detected during analysis. Enable DEBUG mode to see them

Question

Small question regarding an issue encountered during a SonarQube analysis of a Java project please.

The code of the Java project is a simple Hello World SpringBoot application, nothing special. The SonarQube is a 9.3.

During CI/CD pipeline, I perform a Sonar analysis via the Sonar maven plugin. The analysis itself is successful.

However, reproducible 100%, I am facing this:

         [WARNING] 23:25:32.937 Unresolved imports/types have been detected during analysis. Enable DEBUG mode to see them.
         [DEBUG] 23:25:32.938 First 50 unresolved imports/types:
         - Aspect cannot be resolved to a type
         - Bean cannot be resolved to a type
         - Before cannot be resolved to a type
         - Components cannot be resolved to a type
         - Configuration cannot be resolved to a type
         - Contact cannot be resolved to a type
         - CountedAspect cannot be resolved to a type
         - CqlSession cannot be resolved
         - CqlSession cannot be resolved to a type
         - DefaultEndPoint cannot be resolved to a type
         - EnableAspectJAutoProxy cannot be resolved to a type
         - HttpClient cannot be resolved
         - HttpClient cannot be resolved to a type
         - HttpHeaders cannot be resolved to a variable
         - HttpProtocol cannot be resolved to a variable
         - Info cannot be resolved to a type
         - JoinPoint cannot be resolved to a type
         - License cannot be resolved to a type
         - LogManager cannot be resolved
         - Logger cannot be resolved to a type
         - MDC cannot be resolved
[...]

I do not understand what are those "Unresolved imports/type".

May I ask what is the issue, and how can I "resolve them please"?

Thank you