@Nullable
  public static String getStringAttributeValue(@NotNull PsiAnnotationMemberValue attrValue) {
    PsiConstantEvaluationHelper evaluationHelper = JavaPsiFacade.getInstance(attrValue.getProject()).getConstantEvaluationHelper();
    Object constValue = evaluationHelper.computeConstantExpression(attrValue);
    return constValue instanceof String ? (String)constValue : null;
  }
@Nullable
  public static String getStringAttributeValue(@NotNull PsiAnnotationMemberValue attrValue)