code: protected final List<String> getStringListValue(final String inPropertyName,
              List<String> defaultValue) {
  
          List<String> result = getStringListValue(inPropertyName);
          if (result == null) {
              LOGGER.warn("Property not found in configuration: {}",
                      inPropertyName);
              result = defaultValue;
          }
          return result;
      }
docs: Reads in a property value as a whitespace-delimited list of items.
  
  @param inPropertyName The name of the property to read.
  @param defaultValue The value to return if the property is not found.
  @return A list containing the items in the value.