Christian Beikov ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-16620 ( https://hibernate.atlassian.net/browse/HHH-16620?atlOrigin=eyJpIjoiZTJhYW... ) Re: Add support for any mapping without discriminator values ( https://hibernate.atlassian.net/browse/HHH-16620?atlOrigin=eyJpIjoiZTJhYW... ) As far as I understand from the user report, right now it is mandatory to specify at least one @AnyDiscriminatorValue , but in previous versions it was fine to omit that and Hibernate defaulted to using the class name as key, as well as supported all entity classes. ( https://hibernate.atlassian.net/browse/HHH-16620#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16620#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#100225- sha1:11e4e77 )