docs: public static void setCustomPropertyVariables() {
          
          UPGRADE_READ_TIMEOUT = Integer.valueOf(customProps.getProperty("upgradereadtimeout", Integer.toString(TCPReadRequestContext.NO_TIMEOUT))).intValue();
          UPGRADE_WRITE_TIMEOUT = Integer.valueOf(customProps.getProperty("upgradewritetimeout", Integer.toString(TCPReadRequestContext.NO_TIMEOUT))).intValue();
      }