如何使用Java并行化ArrayList操作？

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

List<Integer> arrayList = new ArrayList<>();
arrayList.add(1);
arrayList.add(2);
arrayList.add(3);

ExecutorService executorService = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());

List<Integer> parallelList = new CopyOnWriteArrayList<>(arrayList.parallelStream().collect(Collectors.toList()));

executorService.execute(() -> {
    // 在这里执行并行化操作，例如添加、删除、修改元素等
});

executorService.shutdown();