Laabidi Raissi ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-15235 ( https://hibernate.atlassian.net/browse/HHH-15235?atlOrigin=eyJpIjoiZDE0Nz... ) Re: PropertyAccessException on OneToOne mapping after migration to Hibernate 5.6 ( https://hibernate.atlassian.net/browse/HHH-15235?atlOrigin=eyJpIjoiZDE0Nz... ) If I am not wrong, I think the issue is related to recent dirty check added in https://github.com/hibernate/hibernate-orm/pull/3590 ( https://github.com/hibernate/hibernate-orm/pull/3590 ) ( https://hibernate.atlassian.net/browse/HHH-15235#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-15235#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#100207- sha1:30c8888 )