Fix [SonarQube] Avoid using implementation types like 'ArrayList'; use
the interface instead (Method return in another class was Impl, now need
to update referencing classes)
Fix [SonarQube] Avoid using implementation types like 'ArrayList'; use
the interface instead (Method return in another class was Impl, now need
to update referencing classes)
Add java.util.List import
Change regionTags type from ArrayList to List