Nick Birnie

I just ran into this as well. The latest protoc RC ([3.15.0-rc1](https://search.maven.org/artifact/com.google.protobuf/protoc/3.15.0-rc-1/pom)) supports proto3 optional without requiring the command line flag.

Can we change the error code for this scenario to UNAUTHENTICATED? In Google Ads we authenticate arbitrary users and the product does not support service account impersonation. When access tokens...

Fixing the interface in upstream SGTM. Is there a bug opened already for this?

@devchas please try to reproduce this issue. Check if the OAuth library allows us to detect an invalid refresh token. If so implement a check in the builder which rejects...

Pinged on the bug, I agree this looks like a bug in GAX. There is a workaround possible here which is to switch the RPC from paging -> streaming (i.e....

Looks like we're tracking this in the upcoming microgenerator migration.

I can confirm that this looks like a misbehavior of the retries. We appear to infinitely retry failed OAuth requests. [Logs here](https://paste.googleplex.com/5633923930390528). I'm guessing that we have the wrong settings...

Hey thanks for the ping. The underlying issue is being investigated [here](https://github.com/googleapis/gax-java/issues/965), I've added some more debugging info an reopened since I'm pretty sure that's the root cause.

Yes, this is currently being worked on, was picked up a couple weeks ago. We should have an update here soon.

We could release the examples project and use the maven artifacts directly on the command line.