Retry issues caused by dns resolution #1301

Environment details

1. Specify the API at the beginning of the title. biquery
2. OS type and version: MacOS
3. Java version: 1.8
4. bigquery version(s): 1.117.1

Steps to reproduce

Configuring retrying exceptions, in case of an error during dns resolution on http GRPC API, the exception does not seems to retry. Google Extensions for java consider this a not retry case. The api does not seem to allow retry under errors of this sort:

 stacktrace: com.google.cloud.bigquery.BigQueryException: www.googleapis.com\n\tat com.google.cloud.bigquery.spi.v2.HttpBigQueryRpc.translate(HttpBigQueryRpc.java:113)\n\tat com.google.cloud.bigquery.spi.v2.HttpBigQueryRpc.create(HttpBigQueryRpc.java:213)\n\tat com.google.cloud.bigquery.BigQueryImpl$5.call(BigQueryImpl.java:327)\n\tat com.google.cloud.bigquery.BigQueryImpl$5.call(BigQueryImpl.java:324)\n\tat 

Is there any option to retry this exceptions, could this be added as a feature as the gax retry api is internal to the client.

Thank you for your help.