I created my own property accessor for UJO BO (http://ujoframework.org/) it is faster than basicproppertyaccessor and works fine when i have getters in BO class. When I remove them I got "Could not determine type for ...exepction". . I looked in souruce and there is hardcoded using of basicpropertyaccessor in ReflectHelper class. Why you do "Monkey Business" with property accessors and don't use them ? I want help so I do some changes and it works fine for me. Modifed classes is in attachment. Is there any workaroud to generate metamodel using my property accessor ?