Criteria.setEnableCache(true).setResultTransformer(toNonObjectOrObjectArrayTransformer) breaks ---------------------------------------------------------------------------------------------- Key: HHH-1572 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1572 Project: Hibernate Core Issue Type: Bug Affects Versions: 3.1, 3.2.0.alpha1 Reporter: Max Rydahl Andersen Assignee: Gail Badner Criteria criteria = s.createCriteria(Enrolment.class) .createAlias("student", "s") .createAlias("course", "c") .add( Restrictions.isNotEmpty("s.enrolments") ) .setResultTransformer(Criteria.ALIAS_TO_ENTITY_MAP) .setCacheable(true); list = criteria.list(); (and query caching is enabled) results in hibernate trying to interpret the resulting hashmap as an Entity thus throwing PropertyAccessException.