Hi,
Firstly, thanks you for your answer !
Sadly, it didn’t worked. 
Just to be sure I removed all sonar.* properties in maven and only specified host url, login, and project key by the CLI using -Dsonar at the mvn execution, but I still got a 0% coverage on sonarQube.
Do you have any other ideas ?
Many thanks,
Kevin.
EDIT :
Hey little update.
So I ran mvn with the -X flag to have debugs infos.
I found the following lines :
[INFO] 10:58:39.950 ------------- Run sensors on project
[DEBUG] 10:58:39.954 'Generic Coverage Report' skipped because one of the required properties is missing
I’m quite not sure it is linked because there is plenty of information here but that seems a possibility.
On the other hand I searched for a Sensor JaCoCo XML Report Importer [jacoco] or Reading report as mentioned under the “Troubleshooting” section of this tread but couldn’t find them !