// enlist participant that wraps the requester URI.
final String participantId = "V" + new Uid().stringForm();
try
{
final Volatile2PCStub participantStub = new Volatile2PCStub(participantId, participantProtocolService) ;
_coordManager.enlistSynchronization(new VolatileTwoPhaseCommitParticipant(participantStub)) ;
_coordManager.suspend();
return getCoordinator(participantId) ;