how to simulate a rendezvous?

hi,guys:

    i'am compiling the GroupDiscoveryDemo which i download from jxta.org.
but when i run it, the command window only shows the message"waiting to
connect to a rendevous" and the application can't continue. i know the
reason is that  there is a judgement line"  while (!
rdv.isConnectedToRendezVous()) " in the source code of the demo.
   i tried to simulate another peer acting like a rendezvous. and then i
started this demo,but it did't work.  So,i just wondering that can any of
you guys give me a
good solution to build a rendezvous so that i could continue research the
demo?

  thanks
 Kevin