Queued component interface passing provides a way for a queued component to
convey results of processing a client program's method invocations made asynchronously
via a queue. A queued component recorder for a "processing" queued component operates
to marshal-by-value a method invocation parameter that is reference to another
queued component recorder for another "results" queued component into a data stream
of recorded method invocations, which is then submitted as a message to a queue
associated with the processing queued component. On receipt of the message from
the queue, a queued component player for the processing queued component unmarshals
the reference to the other queued component recorder and passes this reference
to the processing queued component. The processing queued component uses the passed
reference to invoke methods of the results queued component through its message
queue, which conveys the processing queued component's results.
