code: public void setPort(Object oPort) throws PageException {
  	if (StringUtil.isEmpty(oPort)) return;
  	this.port = Caster.toIntValue(oPort);
      }
docs: set the value port The port number on the server from which the task is being scheduled. Default
  is 80. When used with resolveURL, the URLs of retrieved documents that specify a port number are
  automatically resolved to preserve links in the retrieved document.
  
  @param port value to set
  @throws PageException