public static @NotNull String setLocaleEnv(@NotNull Map<String, String> env, @NotNull Charset charset) {
    Locale locale = Locale.getDefault();
    String language = locale.getLanguage();
    String country = locale.getCountry();

    String languageTerritory = "en_US";
    if (!language.isEmpty() && !country.isEmpty()) {
      String languageTerritoryFromLocale = language + '_' + country;
      if (checkIfLocaleAvailable(languageTerritoryFromLocale)) {
        languageTerritory = languageTerritoryFromLocale ;
      }
    }

    String result = languageTerritory + '.' + charset.name();
    env.put(LC_CTYPE, result);
    return result;
  }
public static @NotNull String setLocaleEnv(@NotNull Map<String, String> env, @NotNull Charset charset)