Eugen Dahm As I checked the ticket, they introduced new type check for mapping which throw CCE if the mappedBy side doesn’t have the same type. Probably they overlooked the case that mappedBy can be used for id column. This fix would consider this edge case. (It means this bug introduced in 6.2.0)

FYI, you cannot tag person directly, but you can reply with mention in jira mobile app lol.