} else if (fileName.endsWith(".bulk")) {
            fileType = 3;
        } else if (fileName.startsWith("fess") && fileName.endsWith(".json")) {
            fileType = 4;
        } else if (fileName.startsWith("doc") && fileName.endsWith(".json")) {
            fileType = 5;
        } else {
            throwValidationError(messages -> messages.addErrorsFileIsNotSupported(GLOBAL, fileName), this::asListHtml);
            return;