code: public String getFormattedBody(final Object... arguments) {
          if (StringUtils.isBlank(this.text)) {
              LOGGER.warn("No email body is defined");
              return StringUtils.EMPTY;
          }
          try {
              val templateFile = ResourceUtils.getFile(this.text);
              val contents = FileUtils.readFileToString(templateFile, StandardCharsets.UTF_8);
              return String.format(contents, arguments);
          } catch (final Exception e) {
              LOGGER.trace(e.getMessage(), e);
              return String.format(this.text, arguments);
          }
      }
docs: Format body.
  
  @param arguments the arguments
  @return the string