Tim Gross 6b9dbefb9e consul: handle nil multierror pointer correctly (#24513) ...

When the service client syncs to Consul, we accumulate service sync errors in a
multierror before reading all the local checks. If the API call to the local
checks fails, we either return that error or append it to the multierror and
return the set of errors. But `multierror.Error.Len()` doesn't nil-check, so we
need to do this ourselves.

I've also made a quick pass through the rest of the code base looking for
multierror `Len` method calls to see if we have this pattern elsewhere.

Fixes: https://github.com/hashicorp/nomad/issues/24512

2024-11-20 10:55:52 -05:00

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