hibernate/hibernate-orm · error · UnsupportedMappingException

AttributeContainer [${className}] does not support identifie

Error message

AttributeContainer [${className}] does not support identifiers

What it means

Error "AttributeContainer [${className}] does not support identifiers" thrown in hibernate/hibernate-orm.

Source

Thrown at hibernate-core/src/main/java/org/hibernate/metamodel/model/domain/internal/AttributeContainer.java:32

/**
 * @author Steve Ebersole
 */
public interface AttributeContainer<J> extends ManagedDomainType<J> {
	InFlightAccess<J> getInFlightAccess();

	/**
	 * Used during creation of the type
	 */
	interface InFlightAccess<J> {
		void addAttribute(PersistentAttribute<J,?> attribute);

		/**
		 * Callback used when we have a singular id attribute of some form - either a simple id
		 * or an aggregated composite id ({@link jakarta.persistence.EmbeddedId})
		 */
		default void applyIdAttribute(SingularPersistentAttribute<J, ?> idAttribute) {
			throw new UnsupportedMappingException(
					"AttributeContainer [" + getClass().getName() + "] does not support identifiers"
			);
		}

		default void applyNonAggregatedIdAttributes(
				Set<? extends SingularPersistentAttribute<? super J, ?>> idAttributes,
				EmbeddableDomainType<?> idClassType) {
			throw new UnsupportedMappingException(
					"AttributeContainer [" + getClass().getName() + "] does not support identifiers"
			);
		}

		/**
		 * todo (6.0) : we still need to implement this properly and the contract may change
		 * 		- specifically I am not certain we will be able to re-use `SingularPersistentAttribute`
		 * 		because of its dependence on declaring-type, etc that we may not be able to do
		 */
		default void applyIdClassAttributes(Set<SingularPersistentAttribute<? super J, ?>> idClassAttributes) {

View on GitHub (pinned to fad1729dce)

Solutions

1. Use an entity type instead of a mapped superclass/embeddable container when identifier access is needed.

When it happens

Trigger: Thrown when identifier access is requested from an attribute container that is not an identifiable type (e.g. a basic or embeddable container).

Common situations: See trigger scenarios.

AI-assisted analysis of hibernate/hibernate-orm@fad1729dce (2026-08-22). Data as JSON: /api/errors/713eafc797c0ec7c. Report an issue: GitHub.