docs: public void initEvictor() {
          MapEvictionPolicy mapEvictionPolicy = getMapEvictionPolicy();
          if (mapEvictionPolicy == null) {
              evictor = NULL_EVICTOR;
          } else {
              MemoryInfoAccessor memoryInfoAccessor = getMemoryInfoAccessor();
              EvictionChecker evictionChecker = new EvictionChecker(memoryInfoAccessor, mapServiceContext);
              NodeEngine nodeEngine = mapServiceContext.getNodeEngine();
              IPartitionService partitionService = nodeEngine.getPartitionService();
              int batchSize = nodeEngine.getProperties().getInteger(MAP_EVICTION_BATCH_SIZE);
              evictor = new EvictorImpl(mapEvictionPolicy, evictionChecker, partitionService, batchSize);
          }
      }