presto-hive/src/main/java/io/prestosql/plugin/hive/HdfsConfig.java/HdfsConfig/getDfsKeyProviderCacheTtl
class HdfsConfig:    @NotNull
    @MinDuration("0ms")
    public Duration getDfsKeyProviderCacheTtl()
    {
        return dfsKeyProviderCacheTtl;
    }