presto-main/src/main/java/io/prestosql/sql/planner/LocalExecutionPlanner.java/LocalExecutionPlanner/LocalExecutionPlan
class LocalExecutionPlanner:        public LocalExecutionPlan(List<DriverFactory> driverFactories, List<PlanNodeId> partitionedSourceOrder, StageExecutionDescriptor stageExecutionDescriptor)
        {
            this.driverFactories = ImmutableList.copyOf(requireNonNull(driverFactories, "driverFactories is null"));
            this.partitionedSourceOrder = ImmutableList.copyOf(requireNonNull(partitionedSourceOrder, "partitionedSourceOrder is null"));
            this.stageExecutionDescriptor = requireNonNull(stageExecutionDescriptor, "stageExecutionDescriptor is null");
        }