presto-main/src/main/java/io/prestosql/operator/PartitionedLookupSourceFactory.java/SpillAwareLookupSourceLease/SpillAwareLookupSourceLease
class SpillAwareLookupSourceLease:        public SpillAwareLookupSourceLease(LookupSource lookupSource, SpillingInfo spillingInfo)
        {
            this.lookupSource = requireNonNull(lookupSource, "lookupSource is null");
            this.spillingInfo = requireNonNull(spillingInfo, "spillingInfo is null");
        }