presto-main/src/main/java/io/prestosql/sql/analyzer/FeaturesConfig.java/FeaturesConfig/setSpillerSpillPaths
class FeaturesConfig:    @Config(SPILLER_SPILL_PATH)
    @LegacyConfig("experimental.spiller-spill-path")
    public FeaturesConfig setSpillerSpillPaths(String spillPaths)
    {
        List<String> spillPathsSplit = ImmutableList.copyOf(Splitter.on(",").trimResults().omitEmptyStrings().split(spillPaths));
        this.spillerSpillPaths = spillPathsSplit.stream().map(Paths::get).collect(toImmutableList());
        return this;
    }