While trying to configure a new project using hibernate I get the following error:

Caused by: org.hibernate.MappingException: An AnnotationConfiguration instance is required to use <mapping class="com.qsd.accessdb.DatestimesEntity"/>

This happens when the code is creating the SessionFactory:
sessionFactory = new Configuration().configure().buildSessionFactory();

What is causing this and whats the fix? I'm not using annotations, at least my POJOs are not annotated and I don't have the hibernate annotations jar on the classpath.

Whats going on here?