@Nullable
  public static PsiAnnotation getAnnotation(@NotNull PsiModifierListOwner field, @NotNull String annotationName) {
    final PsiModifierList modifierList = field.getModifierList();
    if (modifierList == null) return null;
    return modifierList.findAnnotation(annotationName);
  }
@Nullable
  public static PsiAnnotation getAnnotation(@NotNull PsiModifierListOwner field, @NotNull String annotationName)