Andrzej ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5fe8586... ) *commented* on HHH-14387 ( https://hibernate.atlassian.net/browse/HHH-14387?atlOrigin=eyJpIjoiMDZlYj... ) Re: A collection with cascade="all-delete-orphan" was no longer referenced by the owning entity instance with hibernate-enhance-maven-plugin ( https://hibernate.atlassian.net/browse/HHH-14387?atlOrigin=eyJpIjoiMDZlYj... ) Yes it should throw exception. Did you run mvn clean compile exec:java -Penhance ? Because the problem occurs when it is used hibernate-enhance-maven-plugin and this is activated in enhance profile if you just run appliaction without enhancing entities it works fine. ( https://hibernate.atlassian.net/browse/HHH-14387#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-14387#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#100204- sha1:f005d5a )