| Assertor | API used in the to allow a message exchange participant to
 assert its capabilities for the underlying message. | 
| Conduit | A pipe between peers that channels transport-level messages. | 
| ConduitInitiator | Factory for Conduits. | 
| ConduitInitiatorManager | The ConduitInitiatorManager provides an interface to register and retrieve
 transport factories. | 
| Destination | A Destination is a transport-level endpoint capable of receiving
 unsolicited incoming messages from different peers. | 
| DestinationFactory | Factory for Destinations. | 
| DestinationFactoryManager | The DestinationFactoryManager provides an interface to register and retrieve
 transport factories. | 
| DestinationWithEndpoint | A destination that has a specific endpoint. | 
| MessageObserver | Observer for incoming messages. | 
| MultiplexDestination | A MultiplexDestination is a transport-level endpoint capable of receiving
 unsolicited incoming messages from different peers for multiple targets
 identified by a unique id. | 
| Observable | Allows Observers to register for notification on incoming messages. | 
| Session | A Session which can be bound to HTTP, WS-Adddressing, etc. |