presto-main/src/main/java/io/prestosql/memory/LocalMemoryManagerExporter.java/LocalMemoryManagerExporter/LocalMemoryManagerExporter
class LocalMemoryManagerExporter:    @Inject
    public LocalMemoryManagerExporter(LocalMemoryManager memoryManager, MBeanExporter exporter)
    {
        this.exporter = requireNonNull(exporter, "exporter is null");
        for (MemoryPool pool : memoryManager.getPools()) {
            addPool(pool);
        }
    }