hibernate/hibernate-orm · error · IllegalArgumentException

Not an embeddable: ${embeddableName}

Error message

Not an embeddable: ${embeddableName}

What it means

Error "Not an embeddable: ${embeddableName}" thrown in hibernate/hibernate-orm.

Source

Thrown at hibernate-core/src/main/java/org/hibernate/metamodel/model/domain/internal/JpaMetamodelImpl.java:198

	@Override
	@Nullable
	public EmbeddableDomainType<?> findEmbeddableType(@Nullable String embeddableName) {
		if ( embeddableName == null ) {
			return null;
		}
		final var managedType = managedTypeByName.get( embeddableName );
		if ( !( managedType instanceof EmbeddableDomainType<?> embeddableDomainType ) ) {
			return null;
		}
		return embeddableDomainType;
	}

	@Override
	@Nonnull
	public EmbeddableDomainType<?> embeddable(@Nullable String embeddableName) {
		final var embeddableType = findEmbeddableType( embeddableName );
		if ( embeddableType == null ) {
			throw new IllegalArgumentException( "Not an embeddable: " + embeddableName );
		}
		return embeddableType;
	}

	@Override
	@Nullable
	public EntityDomainType<?> getHqlEntityReference(@Nonnull String entityName) {
		Class<?> loadedClass = null;
		final var importInfo = resolveImport( entityName );
		if ( importInfo != null ) {
			loadedClass = importInfo.loadedClass;
			entityName = importInfo.importedName;
		}

		final var entityDescriptor = findEntityType( entityName );
		if ( entityDescriptor != null ) {
			return entityDescriptor;
		}

View on GitHub (pinned to fad1729dce)

Solutions

1. Pass the class of a type annotated @Embeddable and used in the persistence unit.

When it happens

Trigger: Thrown when JpaMetamodel.embeddable() is called with a class name that is not a mapped embeddable.

Common situations: See trigger scenarios.

AI-assisted analysis of hibernate/hibernate-orm@fad1729dce (2026-08-22). Data as JSON: /api/errors/5075ed48f4a6c830. Report an issue: GitHub.