code: private static long getMsFromProperty(final String propertyName,
              final String propertyNameInSeconds) {
          String property = PropertiesUtils.getProperty(propertyName);
          if (property != null) {
              return Long.parseLong(property);
          }
          return Integer.parseInt(PropertiesUtils.getProperty(propertyNameInSeconds))
                  * MILLISECS_IN_A_SECOND;
      }
docs: Get millisecs from properties.
  
  @param propertyName
  the property name
  @param propertyNameInSeconds
  the property name for seconds
  @return millisecs