private static PsiDocTag[] getThrowsTags(PsiDocComment comment) {
    if (comment == null) return PsiDocTag.EMPTY_ARRAY;
    PsiDocTag[] tags1 = comment.findTagsByName("throws");
    PsiDocTag[] tags2 = comment.findTagsByName("exception");
    return ArrayUtil.mergeArrays(tags1, tags2);
  }
private static PsiDocTag[] getThrowsTags(PsiDocComment comment)