Markus Heiden ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=6149cfc... ) *commented* on HHH-16122 ( https://hibernate.atlassian.net/browse/HHH-16122?atlOrigin=eyJpIjoiNWNlM2... ) Re: Named type [class xxx] did not implement BasicType nor UserType ( https://hibernate.atlassian.net/browse/HHH-16122?atlOrigin=eyJpIjoiNWNlM2... ) The problem seems to be org.hibernate.boot.model.internal.ClassPropertyHolder#addPropertyToMappedSuperclass which handles parameterized superclasses differently from non-parameterized superclasses. For non-parameterized superclasses, it just adds the property. For parameterized superclasses, it does some “magic”. In this case if ( inferredData.getTypeName().equals( getTypeName( originalValue ) ) ) seems to be the problem, because originalValue does not yet have its typeName set and thus the if-condition evaluates to false instead of adding the property and return. ( https://hibernate.atlassian.net/browse/HHH-16122#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16122#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100214- sha1:4a69e91 )