List

So I am working on my code and trying to apply abstract factory design pattern into it. Here's the situation.

I have a parent class CheckList and a child class ShoppingList. Aside from this, I also have ShoppingListItemclass which extended from ListItemclass.

public abstract class CheckList {
    String name;
    ArrayList<ListItem> items;

    public String getName() { return this.name; };
    public ArrayList<ListItem> getItems() { return this.items; };

    public String setName(String name) { return this.name = name; };

    public abstract void addItem(String name);

    public boolean editItem(String oldName, String newName) {
        for (int i = 0; i < items.size(); i++)
        {
            if (items.get(i).getName() == oldName) {
                items.get(i).setName(newName);
                return true; // target found
            }
        }
        return false; // cannot find the target
    }

    public boolean deleteItem(String name) {
        for (int i = 0; i < items.size(); i++)
        {
            if (items.get(i).getName() == name) {
                items.remove(i);
                return true; // target found
            }
        }
        return false; // cannot find the target
    }

    public boolean completeItem(String name) {
        for (int i = 0; i < items.size(); i++)
        {
            if (items.get(i).getName() == name) {
                items.get(i).setCompleted();
                return true; // target found
            }
        }
        return false; // cannot find the target
    }
}


public class ShoppingList extends CheckList {

    public ShoppingList (String name) {
        this.name = name;
        this.items = new ArrayList<ShoppingListItem>();
    }

    public void addItem(String name) {
        // add a new ShoppingListItem to items
        items.add(new ShoppingListItem(name));
    }
}

The issue I have here is that

ShoppingList.java:9: error: incompatible types: ArrayList cannot be converted to ArrayList this.items = new ArrayList();

Looks like that Java does not allow this kind of inheritance between ArrayList<parent> and ArrayList<child>. I am wondering is there any solution for this? I am trying to make ShoppingList only has a ArrayList<ShoppingListItem> and also inheritanced all the add/delete/etc methods. Is that possible?