Problem encountered / steps to reproduce

For repeated columns in the BigQuery TableSchema, the JsonToProtoMessage.convertJsonToProtoMessage converter [here] requires that the input Json object both contains

• the array field, and
• it is not null.

If either of those things are not true, it fails with an error, before sending it to BigQuery

Investigations:

We tracked the cause of the error down to the fillRepeatedField method inside that converter, specifically [this line] which throws an error if the Json field is null or missing: jsonArray = json.getJSONArray(exactJsonKeyName);

Therefore it would be great to get this issue fixed.
Many thanks.