validateApi(form, messages -> {});
        final StopwordsFile file = stopwordsService.getStopwordsFile(form.dictId).orElseGet(() -> {
            throwValidationErrorApi(messages -> messages.addErrorsFailedToUploadStopwordsFile(GLOBAL));
            return null;
        });
        try (InputStream inputStream = form.stopwordsFile.getInputStream()) {
            file.update(inputStream);
        } catch (final IOException e) {