| ActivationConfigProperty | Used to provide information to the deployer about the configuration of a message driven bean in its operational
 environment. | 
| ConcurrencyManagementType | Used to specify the value of the ConcurrencyManagementannotation for a singleton session bean. | 
| ConcurrentAccessException | A ConcurrentAccessException indicates that the client has attempted an invocation on a stateful session bean or
 singleton bean while another invocation is in progress and such concurrent access is not allowed. | 
| CreateException | The CreateException exception must be included in the throws clauses of all create methods defined in an enterprise
 bean's home or local home interface. | 
| EJB | Indicates a dependency on the local, no-interface, or remote view of an Enterprise Bean. | 
| EJBContext | The EJBContext interface provides an instance with access to the container-provided runtime context of an enterprise
 bean instance. | 
| EJBException | The EJBException is thrown to report that the invoked business method or callback method could not be completed
 because of an unexpected error (e.g. | 
| EJBHome | The EJBHome interface must be extended by all enterprise beans' remote home interfaces. | 
| EJBLocalHome | The EJBLocalHome interface must be extended by all enterprise beans' local home interfaces. | 
| EJBLocalObject | The EJBLocalObject interface must be extended by all enterprise beans' local interfaces. | 
| EJBMetaData | The EJBMetaData interface allows a client to obtain the enterprise bean's meta-data information. | 
| EJBObject | The EJBObject interface is extended by all enterprise beans' remote interfaces. | 
| EnterpriseBean | The EnterpriseBean interface is a common superinterface for the SessionBean, EntityBean and MessageDrivenBean
 interfaces. | 
| EntityContext | The EntityContext interface provides an instance with access to the container-provided runtime context of an entity
 bean instance. | 
| FinderException | The FinderException exception must be included in the throws clause of every finder method of an entity bean's home
 or local home interface. | 
| Handle | The Handle interface is implemented by all enterprise bean object handles. | 
| HomeHandle | The HomeHandle interface is implemented by all home object handles. | 
| LockType | Concurrency lock type for singleton beans with container-managed concurrency. | 
| MessageDrivenContext | The MessageDrivenContext interface provides access to the runtime message-driven context that the container provides
 for a message-driven bean instance. | 
| NoMoreTimeoutsException | This exception indicates that a calendar-based timer will not result in any more timeouts. | 
| NoSuchObjectLocalException | A NoSuchObjectLocalException is thrown if an attempt is made to invoke a method on a local object (local enterprise
 bean object or timer) that no longer exists. | 
| RemoveException | The RemoveException is thrown at an attempt to remove an enterprise bean object or local enterprise bean object when
 the enterprise bean or the container does not allow the enterprise bean object to be removed. | 
| Schedule | Schedule a timer for automatic creation with a timeout schedule based on a cron-like time expression. | 
| ScheduleExpression | 
 A calendar-based timeout expression for an enterprise bean timer. | 
| SessionContext | The SessionContext interface provides access to the runtime session context that the container provides for a session
 bean instance. | 
| Timer | The Timerinterface contains information about a timer that was created through the enterprise bean
 Timer Service. | 
| TimerConfig | 
 TimerConfig is used to specify additional timer configuration settings during timer creation. | 
| TimerHandle | The TimerHandle interface allows the bean provider to obtain a serializable timer handle that may be persisted. | 
| TimerService | The TimerService interface provides enterprise bean components with access to the container-provided Timer Service. | 
| TransactionAttributeType | The enum TransactionAttributeTypeis used with theTransactionAttributeannotation to
 specify whether the methods of a session bean or message driven bean are called with a valid transaction context. | 
| TransactionManagementType | The enum TransactionManagementTypeis used with theTransactionManagementannotation to
 specify whether container-managed or bean-managed transaction management is used. |