AnnotationConfiguration silently ignores classes that are annotated with wrong Entity, or not annotated. -------------------------------------------------------------------------------------------------------- Key: ANN-252 URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-252 Project: Hibernate Annotations Issue Type: Improvement Components: binder Affects Versions: 3.1beta8 Reporter: Damon Feldman Assignee: Emmanuel Bernard Fix For: 3.3.0.ga Original Estimate: 1 hour Remaining Estimate: 1 hour If you import the wrong Entity (e.g. org.hibernate.annotation.Entity) in a persistent class, the class is ignored, but no logging or other notification is made of the issue. Recommend: adding a log statement: log.warn("The class" + annotatedClass.getName() +"does not have the proper annotation: " + Entity.class.getName()); Here is the code that seems responsible: /** * Read a mapping from the class annotation metadata (JSR 175). * * @param persistentClass the mapped class * @return the configuration object */ public AnnotationConfiguration addAnnotatedClass(Class persistentClass) throws MappingException { try { if ( persistentClass.isAnnotationPresent( Entity.class ) ) { annotatedClassEntities.put( persistentClass.getName(), persistentClass ); } annotatedClasses.add( persistentClass ); return this; } catch (MappingException me) { log.error( "Could not compile the mapping annotations", me ); throw me; } }