code: private int determineHeartbeatInterval(Map properties)
      {
          // How often should we heartbeat?
          int heartbeatInterval = JFapChannelConstants.DEFAULT_HEARTBEAT_INTERVAL;
          try
          {
              heartbeatInterval = Integer.parseInt(RuntimeInfo.getProperty(JFapChannelConstants.RUNTIMEINFO_KEY_HEARTBEAT_INTERVAL, "" + heartbeatInterval));
          } catch (NumberFormatException nfe)
          {
              // No FFDC code needed
          }
  
          if (properties != null)
          {
              String intervalStr = (String) properties.get(JFapChannelConstants.CHANNEL_CONFIG_HEARTBEAT_INTERVAL_PROPERTY);
              if (intervalStr != null)
              {
                  try
                  {
                      heartbeatInterval = Integer.parseInt(intervalStr);
                  } catch (NumberFormatException nfe)
                  {
                      // No FFDC code needed
                  }
              }
          }
          return heartbeatInterval;
      }
docs: begin F196678.10