presto-accumulo/src/main/java/io/prestosql/plugin/accumulo/AccumuloMetadataFactory.java/AccumuloMetadataFactory/AccumuloMetadataFactory
class AccumuloMetadataFactory:    @Inject
    public AccumuloMetadataFactory(AccumuloClient client)
    {
        this.client = requireNonNull(client, "client is null");
    }