While annotation implementations created by reflection never return nulls, it's possible to create a custom annotation interface implementation and nothing stops from returning null in this case. This leads to false-positives.
Fixes IDEA-269686 Wrong inspection message for nullable return value of annotation
Rollback IDEA-151174 Annotation method return values are non-nullable
GitOrigin-RevId: 88301bd8f5fb69e1e78efc23ecc1416c7c441473
