This method deletes the state being maintained on behalf of the subscriber by the JMS system.
It is erroneous for a client to Delete a durable subscription while there is an active IMessageConsumer for the subscription, or while a consumed message is part of a pending transaction or has not been acknowledged in the session. 
| Exception Type | Condition | 
|---|---|
| MessageException | if the session fails to Unsubscribe to the durable subscription due to some internal error. | 
| InvalidDestinationException | if an invalid subscription name is specified. | 
ISession Interface | WebLogic.Messaging Namespace