private static @NotNull NlsInfo fromMetaAnnotation(@Nullable PsiClass annotationClass) {
    if (annotationClass == null) return NlsUnspecified.UNKNOWN;
    NlsInfo baseInfo = NlsUnspecified.UNKNOWN;
    String prefix = "";
    String suffix = "";
    for (PsiAnnotation metaAnno : annotationClass.getAnnotations()) {
      if (metaAnno.hasQualifiedName(NLS_CONTEXT)) {
        prefix = StringUtil.notNullize(AnnotationUtil.getStringAttributeValue(metaAnno, "prefix"));
        suffix = StringUtil.notNullize(AnnotationUtil.getStringAttributeValue(metaAnno, "suffix"));
      }
      else {
        NlsInfo info = fromAnnotation(metaAnno);
        if (info != NlsUnspecified.UNKNOWN) {
          baseInfo = info;
        }
      }
    }
    if (baseInfo instanceof Localized) {
      return ((Localized)baseInfo).withPrefixAndSuffix(prefix, suffix).withAnnotation(annotationClass.getQualifiedName());
    }
    return baseInfo;
  }
private static @NotNull NlsInfo fromMetaAnnotation(@Nullable PsiClass annotationClass)