Receive message data for the current delivery returning the data in a Readable buffer.
The delivery will return an empty buffer if there is no pending data to be read or if all
data has been read either by a previous call to this method or by a call to one of the other
receive methods.
@return a ReadableBuffer that contains the currently available data for the current delivery.
Receive message data for the current delivery returning the data in a Readable buffer.
The delivery will return an empty buffer if there is no pending data to be read or if all data has been read either by a previous call to this method or by a call to one of the other receive methods.
@return a ReadableBuffer that contains the currently available data for the current delivery.