public static boolean isPackageNonNls(final PsiPackage psiPackage) {
    if (psiPackage == null || psiPackage.getName() == null) {
      return false;
    }
    final PsiModifierList pkgModifierList = psiPackage.getAnnotationList();
    return pkgModifierList != null && pkgModifierList.hasAnnotation(AnnotationUtil.NON_NLS)
           || isPackageNonNls(psiPackage.getParentPackage());
  }
public static boolean isPackageNonNls(final PsiPackage psiPackage)