backingEntries.remove();
        toRemove = null;
      }
    };
  }

  @Override
  public void forEachEntry(ObjIntConsumer<? super E> action) {
    checkNotNull(action);
    backingMap.forEach((element, count) -> action.accept(element, count.get()));
  }

  @Override
  public void clear() {
    for (Count frequency : backingMap.values()) {
      frequency.set(0);
    }