cm.enlistParticipant(new TwoPhaseParticipant(null));
cm.enlistParticipant(new TwoPhaseParticipant(null));
cm.enlistSynchronization(new TwoPhaseSynchronization());
System.out.println("Started: "+cm.identifier()+"\n");
ActivityHierarchy hier = cm.suspend();
System.out.println("Suspended: "+hier+"\n");