包括的类有： javax.ejb.AccessLocalException.class javax.ejb.CreateException.class javax.ejb.DuplicateKeyException.class javax.ejb.EJBContext.class javax.ejb.EJBException.class javax.ejb.EJBHome.class javax.ejb.EJBLocalHome.class javax.ejb.EJBLocalObject.class javax.ejb.EJBMetaData.class javax.ejb.EJBObject.class javax.ejb.EnterpriseBean.class javax.ejb.EntityBean.class javax.ejb.EntityContext.class javax.ejb.FinderException.class javax.ejb.Handle.class javax.ejb.HomeHandle.class javax.ejb.MessageDrivenBean.class javax.ejb.MessageDrive nContext.class javax.ejb.NoSuchEntityException.class javax.ejb.NoSuchObjectLocalException.class javax.ejb.ObjectNotFoundException.class javax.ejb.RemoveException.class javax.ejb.SessionBean.class javax.ejb.SessionContext.class javax.ejb.SessionSynchronization.class javax.ejb.TimedObject.class javax.ejb.Timer.class javax.ejb.TimerHandle.class javax.ejb.TimerService.class javax.ejb.TransactionRequiredLocalException.class javax.ejb.TransactionRolledbackLocalException.class javax.ejb.spi.HandleDelegate.class