@Nullable
  private Notification validateLocale() throws SvnBindException {
    ProcessOutput versionOutput = getVersionClient().runCommand(false);
    Notification result = null;

    Matcher matcher = INVALID_LOCALE_WARNING_PATTERN.matcher(versionOutput.getStderr());
    if (matcher.find()) {
      @NlsSafe String warningText = matcher.group();
      LOG.info(warningText);

      result = new ExecutableNotValidNotification(prepareDescription(UIUtil.getHtmlBody(warningText), false), NotificationType.WARNING);
    }
    else if (!isEnglishOutput(versionOutput.getStdout())) {
      LOG.info("\"svn --version\" command contains non-English output " + versionOutput.getStdout());

      result = new ExecutableNotValidNotification(prepareDescription(message("non.english.locale.detected.warning"), false),
                                                  NotificationType.WARNING);
    }

    return result;
  }
@Nullable
  private Notification validateLocale()