Juan Pablo Rojas ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5b1028b... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMTdlY2YzZDFh... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-17071?atlOrigin=eyJpIjoiMTdlY2... ) HHH-17071 ( https://hibernate.atlassian.net/browse/HHH-17071?atlOrigin=eyJpIjoiMTdlY2... ) Basic Collection of 'Converted' Embeddables stopped working with 6.2 ( https://hibernate.atlassian.net/browse/HHH-17071?atlOrigin=eyJpIjoiMTdlY2... ) Issue Type: Bug Affects Versions: 6.2.6 Assignee: Unassigned Components: hibernate-core Created: 11/Aug/2023 08:09 AM Environment: Spring Boot 3.1.2 Spring Data 2023.0.2 Priority: Major Reporter: Juan Pablo Rojas ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5b1028b... ) Dear all, Just wanted to mention that after described upgrade (SB 3.0.5 → SB 3.1.2), the next mapping stopped working (application couldnt start either). @Basic( optional = false ) @Column( name="LANGUAGES", length = 256 ) @Convert( converter = ISO639LanguageSetConverter.class ) private Set<ISO639Language> languages = new HashSet<>(); ISO639Language is a simple embeddable that stores a locale like literal and ‘validates’ it upon creation. Nothing too fancy. @Embeddable public class ISO639Language { protected ISO639Language(){} public ISO639Language( String value){ this.setValue(value); } @Basic @Column( name = "LANGUAGE" , nullable = false , unique = false ) @Pattern( regexp = "^[^-]{2,3}(-[^-]{2,3})?(-[^-]{2,3})?$" ) private String value; public String getValue() { return value; } public void setValue( String value) { this.value = value.trim().replace( '_' , '-' ); } } I guess it has to do with the introduction of mapping composite/struct types https://hibernate.atlassian.net/browse/HHH-15327 and, checking at source code, with https://hibernate.atlassian.net/browse/HHH-15830. The only workaround that i can think of to make it work again is to use plain strings instead of the embeddable, but i guess that PropertyBinder may use the Convert annotation to realize that this is actually a basic type binding. Thank you for your help! BR Juan Pablo ( https://hibernate.atlassian.net/browse/HHH-17071#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-17071#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#100234- sha1:39b0f46 )