private void writeExternal(final Element element) {
    if (myLanguageLevel != null) {
      element.setAttribute(LANGUAGE_LEVEL, myLanguageLevel.name());
    }

    Boolean aBoolean = getDefault();
    if (aBoolean != null && aBoolean != myProject.isDefault()) { // do not write default 'true' for default project
      element.setAttribute(DEFAULT_ATTRIBUTE, Boolean.toString(aBoolean));
    }
  }
private void writeExternal(final Element element)