Da para tirar o controle de persisencia do manage bean e nao utilizar nenhuma solucao como spring ou hibernate? Para evitar este problema:
Exception [TOPLINK-7242] (Oracle TopLink Essentials - 2.0.1 (Build b04-fcs (04/11/2008))): oracle.toplink.essentials.exceptions.ValidationException
Exception Description: An attempt was made to traverse a relationship using indirection that had a null Session. This often occurs when an entity with an uninstantiated LAZY relationship is serialized and that lazy relationship is traversed after serialization. To avoid this issue, instantiate the LAZY relationship prior to serialization
Nao quero usar Fetch EAGER
Tentei jogar a persistencia para um Dao e um EJB3.