Danilov Roman ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiYmVlMTFjZmM2... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16285?atlOrigin=eyJpIjoiYmVlMT... ) HHH-16285 ( https://hibernate.atlassian.net/browse/HHH-16285?atlOrigin=eyJpIjoiYmVlMT... ) Property of on-execution generated embeddable is not generated ( https://hibernate.atlassian.net/browse/HHH-16285?atlOrigin=eyJpIjoiYmVlMT... ) Issue Type: Bug Affects Versions: 6.2.0.CR3 Assignee: Unassigned Attachments: hibernate-orm-6.zip Components: hibernate-core Created: 11/Mar/2023 05:10 AM Priority: Major Reporter: Danilov Roman ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) I described the problem here: https://discourse.hibernate.org/t/problem-with-generate-id-in-hibernate-6... ( https://discourse.hibernate.org/t/problem-with-generate-id-in-hibernate-6... ) I looked a little, the error occurs when hibernate tries to process a property in an entity by type: @ManyToOne @JoinColumns({ @JoinColumn(name = "channelId" , referencedColumnName = "channel_id" ), @JoinColumn(name = "messageId" , referencedColumnName = "id" ) }) private ChannelMessage message; And inside ChannelMessage these fields: @Id @GeneratedValue(strategy = GenerationType.SEQUENCE) private long id; and @Generated(GenerationTime.INSERT) private long channelId; And when hibernate processes these fields, generatorCreator field is filled only for{{channelId}}. Because in PropertyBinder class in generatorCreator method it looks for the ValueGenerationType.class annotation (or child). But maybe I didn't fully understand how it should actually work I have attached test cases (may need to run a couple of times). ( https://hibernate.atlassian.net/browse/HHH-16285#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16285#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#100217- sha1:dd34e91 )