h requires this degree of confidence must therefore wait for
 the callback to be invoked before continuing.

 <p>
 The following information is intended to give an indication of how an asynchronous send would typically be
 implemented.

 <p>
 In some Jakarta Messaging providers, a normal synchronous send involves sending the message to a remote Jakarta Messaging server and then waiting
 for an acknowledgement to be received before returning. It is expected that such a provider would implement an
 asynchrono