@Nullable
  private static CommonCodeStyleSettings readExternal(@NotNull LanguageCodeStyleProvider provider, @NotNull Element commonSettingsElement) {
    CommonCodeStyleSettings settings = safelyGetDefaults(provider);
    if (settings != null) {
      settings.readExternal(commonSettingsElement);
    }
    return settings;
  }
@Nullable
  private static CommonCodeStyleSettings readExternal(@NotNull LanguageCodeStyleProvider provider, @NotNull Element commonSettingsElement)