RenderDataUtil.register(data, "path", file.getPath());
            }).orElse(() -> {
                throwValidationError(messages -> messages.addErrorsFailedToDownloadKuromojiFile(GLOBAL), this::asDictIndexHtml);
            });
        });
    }

    /**
     * Download a kuromoji dictionary file.
     * @param form The download form.

     * message: Failed to download a Kuromoji file.
     * </pre>
     * @param property The property name for the message. (NotNull)
     * @return this. (NotNull)
     */
    public FessMessages addErrorsFailedToDownloadKuromojiFile(String property) {
        assertPropertyNotNull(property);
        add(property, new UserMessage(ERRORS_failed_to_download_kuromoji_file));
        return this;
    }

    /**