Could you post here mapping that causes this issue? I am unable to reproduce it against current master branch. What Hibernate / Envers version are you using? Mapping posted below seems to work fine. Attached patch is unfortunately out of date.

@Embeddable
public class CompositeEmbeddable implements Serializable {
    private int numVal;
    private Date dateVal;
    
    ...
}

@Entity
@Audited
public class CompositeEmbeddedIdEntity implements Serializable {
    @EmbeddedId
    private CompositeEmbeddable id;

    private String data;
    
    ...
}

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators.
For more information on JIRA, see: http://www.atlassian.com/software/jira