The following warning is output whenever the `__script_cache` is accessed via the Java Hot Rod client:

WARN  [org.infinispan.client.hotrod.impl.RemoteCacheImpl] (main) ISPN004116: Client cannot marshall the server's key media type ('application/x-java-object'). This could cause poor performance.

As this is an internal cache, it's not possible for users to prevent this warning by changing the cache configuration. We should update the client to avoid printing this warning when users use the `__script_cache`.