code: public void viewAccepted(View new_view) {
          List<Address> new_mbrs=new_view.getMembers();
          if(new_mbrs != null) {
              notifyViewChange(new_view);
              members.clear();
              members.addAll(new_mbrs);
          }
  		//if size is bigger than one, there are more peers in the group
  		//otherwise there is only one server.
          send_message=members.size() > 1;
      }
docs: /*----------------------- MembershipListener ------------------------