presto-main/src/main/java/io/prestosql/execution/scheduler/BroadcastOutputBufferManager.java/BroadcastOutputBufferManager/BroadcastOutputBufferManager
class BroadcastOutputBufferManager:    public BroadcastOutputBufferManager(Consumer<OutputBuffers> outputBufferTarget)
    {
        this.outputBufferTarget = requireNonNull(outputBufferTarget, "outputBufferTarget is null");
        outputBufferTarget.accept(outputBuffers);
    }