Branch: refs/heads/main Home: https://github.com/hibernate/hibernate-orm Commit: 9218cd2b0c4e6709b7bb315760aca09d283fe674 https://github.com/hibernate/hibernate-orm/commit/9218cd2b0c4e6709b7bb315... Author: Emond Papegaaij <emond.papegaaij(a)topicus.nl&gt; Date: 2026-08-05 (Wed, 05 Aug 2026) Changed paths: M hibernate-core/src/main/java/org/hibernate/boot/models/xml/internal/ManagedTypeProcessor.java A hibernate-core/src/test/java/org/hibernate/orm/test/jpa/callbacks/xml/partial/PartialOverlayBaseEntity.java A hibernate-core/src/test/java/org/hibernate/orm/test/jpa/callbacks/xml/partial/PartialOverlayChild.java A hibernate-core/src/test/java/org/hibernate/orm/test/jpa/callbacks/xml/partial/PartialOverlayEntityListenerTest.java A hibernate-core/src/test/java/org/hibernate/orm/test/jpa/callbacks/xml/partial/PartialOverlayListener.java A hibernate-core/src/test/java/org/hibernate/orm/test/jpa/callbacks/xml/partial/PartialOverlayParent.java A hibernate-core/src/test/resources/mappings/callbacks/partial-overlay.xml Log Message: ----------- HHH-20452 Don't stamp synthetic @Access when applying a partial XML overlay In additive (non-metadata-complete) entity XML, the access type was resolved via a coalesce chain that fell back to PROPERTY when no explicit value was set, and the result was then unconditionally stamped onto the class via @Access. For an entity that inherits @Id from a @MappedSuperclass field this silently overrode the natural field-access detection: relationship annotations on fields (e.g. @OneToMany) became invisible to the binder and boot failed in JDBC-type resolution with MappingException: Basic collection has element type 'Child' which is not a known basic type (attribute is not annotated '@ElementCollection', '@OneToMany', or '@ManyToMany') Only stamp @Access in override mode when the access type was explicitly supplied (entity / entity-mappings access attribute or PU-defaults <access>). Keep the fallback chain for internal XML attribute processing. This mirrors the existing behavior of processMappedSuperclassMetadata. To unsubscribe from these emails, change your notification settings at https://github.com/hibernate/hibernate-orm/settings/notifications