Follow-on from HHH-9599. The fix for HHH-9599 added a new flag SimpleValue#isNationalized to indicate whether the value is nationalized. Internally, SimpleValue then tries to map jdbc type codes to any corresponding nationalized variant. As of HHH-9599 this works reasonably well when an AttributeConverter is used (I hook into the jdbc type code resolution in there already) or in other well defined use cases. However, it does miss some use cases. And it completely misses support for globally declaring nationalized character data in conjunction with XML (hbm or orm) mappings.