Andrea Boriero ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-15453 ( https://hibernate.atlassian.net/browse/HHH-15453?atlOrigin=eyJpIjoiZjU4ND... ) Re: java.lang.NullPointerException: Cannot invoke "org.hibernate.engine.spi.EntityEntry.getEntityKey()" because "ownerEntry" is null ( https://hibernate.atlassian.net/browse/HHH-15453?atlOrigin=eyJpIjoiZjU4ND... ) Hi Puhong You ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) , tried also inserting directly the values in the db but still not able to reproduce the problem 😞 Can you please share your reproducer (on github or as a zip file) so I can investigate it? Thanks a lot ( https://hibernate.atlassian.net/browse/HHH-15453#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-15453#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#100205- sha1:6417f3f )