[Bug]: Unable to connect to GMK topic using Kafka-client 4.0.0

[JayajP]

What happened?

I tried running a Dataflow job that reads messages from a Kafka topic using kafka-client 4.0.0 and my reads were silently failing. Downgrading to 3.7.0 caused reads to succeed.

When I created my Kafka Read DoFn I specify withGcpApplicationDefaultCredentials

I'm currently running beam version 2.70.0-snapshot

c.c. @johnjcasey

Issue Priority

Priority: 2 (default / most bugs should be filed as P2)

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