For JCache Remote, creating a cache requires checking first of the cache exists server side, and if not create one using admin operations.
From the server perspective, if the cache is not defined, a noisy exception is logged:
This is too noisy. The server should log something, on debug maybe but we should not treat this as an error. The client already knows that the cache returned is null, so it needs to create the cache in the server somehow, that should be enough.