public static @Nullable PsiAnnotationMemberValue findAttributeValue(@NotNull PsiClass annotationClass, @Nullable @NonNls String attributeName) {
    PsiMethod[] methods = annotationClass.findMethodsByName(attributeName, false);
    for (PsiMethod method : methods) {
      if (PsiUtil.isAnnotationMethod(method)) {
        return ((PsiAnnotationMethod)method).getDefaultValue();
      }
    }
    return null;
  }
public static @Nullable PsiAnnotationMemberValue findAttributeValue(@NotNull PsiClass annotationClass, @Nullable @NonNls String attributeName)