EJBException

trhown by an EJB when application-specific method cannot be completed

NoSuchEntityException

entity bean does not exist.

CreateException

EJB can not be created

DuplicateKeyException

Entity EJB can not be created as object with same keya lready exists

RemoveException

EJB can not be removed

FinderException

Collection of one or more entity EJBs can not be found

ObjectNotFoundException

a Single EJB object can not be found.