private static boolean isNotFoundError(BlobErrorCode errorCode) {
    return (errorCode == BlobErrorCode.BLOB_NOT_FOUND || errorCode == BlobErrorCode.CONTAINER_NOT_FOUND);
  }
Utility to check if an error code corresponds to a not-found condition.
@param errorCode the {@link BlobErrorCode} to check.
@return {@code true} for a not-found error, otherwise {@code false}.
ambry-cloud/src/main/java/com/github/ambry/cloud/azure/AzureBlobDataAccessor.java