Moving from 0.4.6 to 0.5.2 I realized that Java 11 is now required to execute Perl plugin for SonarQube.
This does not seems coherent with the official support of version 7.9 LTS as the documentation of this version mention that scanners can be executed with Java 8.
I understand that this might only apply to "official" plugins from SonarSource but I think it would be nice if Perl plugin can keep this compatibility until the end of 7.9 support.