us send by sending the message to the remote Jakarta Messaging server and then returning without waiting for an
 acknowledgement. When the acknowledgement is received, the Jakarta Messaging provider would notify the application by invoking the
 <tt>onCompletion</tt> method on the application-specified <tt>CompletionListener</tt> object. If for some reason the
 acknowledgement is not received the Jakarta Messaging provider would notify the application by invoking the
 <tt>CompletionListener</tt>'s <tt>onExce