-- retention: annotations reflection can see on Base
[@com.ankurm.demo.annotations.Tracked(priority=5, value="", level=NORMAL, tags={})]
-- members and defaults
default  value="" priority=5 level=NORMAL tags=[]
explicit value="billing" priority=9 level=HIGH tags=[pci, money]
-- @Inherited: Child extends Base, Child itself has no annotations
getAnnotation(Tracked)         = true
getDeclaredAnnotation(Tracked) = false
-- @Repeatable
Staff direct getAnnotations().length   = 1 (Roles container)
Staff getAnnotationsByType(Role)       = [admin, auditor]
Solo  getAnnotation(Role) != null      = true
Solo  getAnnotation(Roles) != null     = false
Solo  getAnnotationsByType(Role)       = [admin]