@Nullable
 public static HighlightInfo checkAnnotationDeclaration(
     final PsiElement parent, final PsiReferenceList list) {
   if (PsiUtil.isAnnotationMethod(parent)) {
     PsiAnnotationMethod method = (PsiAnnotationMethod) parent;
     if (list == method.getThrowsList()) {
       String description =
           JavaErrorMessages.message("annotation.members.may.not.have.throws.list");
       return HighlightInfo.newHighlightInfo(HighlightInfoType.ERROR)
           .range(list)
           .descriptionAndTooltip(description)
           .create();
     }
   } else if (parent instanceof PsiClass && ((PsiClass) parent).isAnnotationType()) {
     if (PsiKeyword.EXTENDS.equals(list.getFirstChild().getText())) {
       String description = JavaErrorMessages.message("annotation.may.not.have.extends.list");
       return HighlightInfo.newHighlightInfo(HighlightInfoType.ERROR)
           .range(list)
           .descriptionAndTooltip(description)
           .create();
     }
   }
   return null;
 }