code: public void updateDialog(SIPDialog sipDialog) throws SipCacheException {
  		Node dialogNode = ((Node) dialogRootNode.getChild(Fqn.fromString(sipDialog.getDialogId())));
  		if(dialogNode != null) {
  			if(dialogNode != null) {
  				sipDialog = (SIPDialog) dialogNode.get(sipDialog.getDialogId());
  			}
  		}
  	}
docs: /*
  (non-Javadoc)
  @see org.mobicents.ha.javax.sip.cache.SipCache#updateDialog(gov.nist.javax.sip.stack.SIPDialog)