code: private static Map<String, String> getProperties(String fileName)
      {
          if (kunderaBlockchainProps == null || kunderaBlockchainProps.isEmpty())
          {
              Configuration config = null;
              try
              {
                  config = new PropertiesConfiguration(fileName);
  
              }
              catch (ConfigurationException ce)
              {
                  LOGGER.error("Not able to load properties from  " + fileName + " file. ", ce);
                  throw new KunderaException("Not able to load properties from  " + fileName + " file. ", ce);
              }
              kunderaBlockchainProps = (Map) ConfigurationConverter.getProperties(config);
              LOGGER.info("Properties loaded from " + fileName + " file. Properties: " + kunderaBlockchainProps);
          }
          return kunderaBlockchainProps;
      }
docs: Gets the properties.
  
  @param fileName
  the file name
  @return the properties