Jan-Willem Gmelig Meyling ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-6143 ( https://hibernate.atlassian.net/browse/HHH-6143?atlOrigin=eyJpIjoiYWEyZWN... ) Re: ElementCollection in Embeddable in Entity is ignored on merge ( https://hibernate.atlassian.net/browse/HHH-6143?atlOrigin=eyJpIjoiYWEyZWN... ) I am not sure if this is truly a duplicate of HHH-3218 ( https://hibernate.atlassian.net/browse/HHH-3218 ) Closed. This issue describes an ElementCollection that is declared inside an Embeddable, the other issue mentions an ElementCollection of Embeddable values. I can reproduce the issue in Hibernate 5.4.x ( https://hibernate.atlassian.net/browse/HHH-6143#add-comment?atlOrigin=eyJ... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-6143#add-comment?atlOrigin=eyJ... ) 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#100130- sha1:d095cd6 )