void () { Set<Ancestor> ancestors = null; myField = ancestors; Set<? super Subject> ancestorExtends = null; myField = ancestorExtends; Set<? super Ancestor> ancestorSupers = null; myField = ancestorSupers; Set<Subject> subjects = null; myField = subjects; Set<? super Subject> subjectExtends = null; myField = subjectExtends; Set<? super Subject> subjectSupers = null; myField = subjectSupers; Set<? super Subject> descendants = null; myField = descendants; Set<? super Subject> descendantExtends = null; myField = descendantExtends; Set<? super Subject> descendantSupers = null; myField = descendantSupers; Set set = null; myField = set; }