code: public NodeObject getPeerNodeObject (String nodeName)
      {
          if (Objects.equal(_nodeName, nodeName)) {
              return _nodeobj;
          }
          PeerNode peer = _peers.get(nodeName);
          return (peer == null) ? null : peer.nodeobj;
      }
docs: Returns the NodeObject of the named peer, or <code>null</code> if null if the peer is not
  currently connected to this server.