Annotation used to indicate that annotated property is part of two-way linkage between fields; and that its role is "parent" (or "forward") link. Value type (class) of property must have a single compatible property annotated with JsonBackReference. Linkage is handled such that the property annotated with this annotation is handled normally (serialized normally, no special handling for deserialization); it is the matching back reference that requires special handling

All references have logical name to allow handling multiple linkages; typical case would be that where nodes have both parent/child and sibling linkages. If so, pairs of references should be named differently. It is an error for a class to have multiple managed references with same name, even if types pointed are different.