hibernate/hibernate-orm · error · TransformationException

Error transforming <property/> : {}

Error message

Error transforming <property/> : {}

What it means

Error "Error transforming <property/> : {}" thrown in hibernate/hibernate-orm.

Source

Thrown at hibernate-core/src/main/java/org/hibernate/boot/jaxb/hbm/transform/HbmXmlTransformer.java:2133

		}
		catch (Exception e) {
			throw new TransformationException( "Error processing entity attributes : " + entityTypeInfo.getPersistentClass().getEntityName(), e, origin() );
		}
	}

	private void transferBaseAttributes(
			String roleBase,
			List<?> hbmAttributeMappings,
			ManagedTypeInfo managedTypeInfo,
			JaxbAttributesContainer attributes) {
		for ( Object hbmAttributeMapping : hbmAttributeMappings ) {
			if ( hbmAttributeMapping instanceof JaxbHbmBasicAttributeType basic ) {
				try {
					final var propertyInfo = managedTypeInfo.propertyInfoMap().get( basic.getName() );
					attributes.getBasicAttributes().add( transformBasicAttribute( basic, propertyInfo ) );
				}
				catch (Exception e) {
					throw new TransformationException( "Error transforming <property/> : " + basic.getName(), e, origin() );
				}
			}
			else if ( hbmAttributeMapping instanceof JaxbHbmCompositeAttributeType hbmComponent ) {
				try {
					final String componentRole = roleBase + "." + hbmComponent.getName();
					final var componentTypeInfo = transformationState.getEmbeddableInfoByRole().get( componentRole );
					final var jaxbEmbeddable = componentHandler.applyEmbeddable(
							roleBase,
							hbmComponent,
							componentTypeInfo
					);
					final var embedded = componentHandler.transformEmbedded( jaxbEmbeddable, hbmComponent, componentTypeInfo );
					transferAccess(
							hbmComponent.getAccess(),
							embedded::setAccess,
							embedded::setAttributeAccessor
					);
					attributes.getEmbeddedAttributes().add( embedded );

View on GitHub (pinned to fad1729dce)

Solutions

1. Inspect the reported <property/> element in the hbm.xml for unsupported or malformed attributes (type, column, formula).
2. Check the causal exception to find which aspect of the property failed to transform.
3. Fix the property mapping (e.g. correct type name, column references) and retry.

When it happens

Trigger: The hbm.xml to mapping.xml transformer hits an unexpected structure.

Common situations: Converting legacy hbm.xml documents containing constructs the transformer does not handle.

AI-assisted analysis of hibernate/hibernate-orm@fad1729dce (2026-08-22). Data as JSON: /api/errors/ce70b005a01bd028. Report an issue: GitHub.