@Override
    protected String getNewPropertyValue(final Set<String> data, final PropertyValue propertyValue) {
      final String ignoreString;
      if (data.size() == 1) {
        ignoreString = data.iterator().next();
      } else {
        final StringBuilder sb = new StringBuilder();
        for (final String name : data) {
          sb.append(name).append('\n');
        }
        ignoreString = sb.toString();
      }
      return (propertyValue == null) ? ignoreString : (PropertyValue.toString(propertyValue) + '\n' + ignoreString);
    }
@Override
    protected String getNewPropertyValue(final Set<String> data, final PropertyValue propertyValue)