javax.ejb
Interfaces 
EJBContext
EJBHome
EJBLocalHome
EJBLocalObject
EJBMetaData
EJBObject
EnterpriseBean
EntityBean
EntityContext
Handle
HomeHandle
MessageDrivenBean
MessageDrivenContext
SessionBean
SessionContext
SessionSynchronization
Exceptions 
AccessLocalException
CreateException
DuplicateKeyException
EJBException
FinderException
NoSuchEntityException
NoSuchObjectLocalException
ObjectNotFoundException
RemoveException
TransactionRequiredLocalException
TransactionRolledbackLocalException