map.get(key, loader);
        ReferenceEntry<Object, Object> entry = segment.getEntry(key, hash);
        writeOrder.add(entry);
        readOrder.add(entry);
      }

      checkEvictionQueues(map, segment, readOrder, writeOrder);
      checkExpirationTimes(map);
      assertTrue(segment.recencyQueue.isEmpty());

      // access some of the elements
      Random random = new Random();