如何解决我将ArrayList加载到JList时遇到的警告？

Question

我收到第53行的警告： list = new JList（alCar.toArray（））;

警告说： 分配给UI绑定字段将覆盖UI Designer生成的字段。 此检查报告对绑定到UI Designer表单中的组件的字段的分配。此类分配将导致UI Designer为这些字段生成的组件设置代码被忽略。

package com.company;

import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import java.awt.*;
import java.io.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;

public class CarApp {
    private JButton btnDelObj;
    private JButton btnAddObj;
    private DefaultListModel dlm;
    private JList list;
    private JPanel panelMain;
    private ArrayList<Car> alCar;
    private String sMake, sModel, newYear, fileName;
    private int iYear;

public CarApp() throws IOException, ClassNotFoundException {
    dlm = new DefaultListModel();
    alCar = new ArrayList<>();
    list = new JList();
    list.setModel(dlm);

    //Sorts the ArrayList Car objects by model in alphabetical order.
    Collections.sort(alCar, new Comparator<Car>() {
        public int compare(Car o1, Car o2) {
            if (o1.model.compareToIgnoreCase(o2.model) == 0) {
                return 0;
            } else if (o1.model.compareToIgnoreCase(o2.model) < 0) {
                return -1;
            } else {
                return 1;
            }
        }
    });

    //Loads the file specified by the user
    loadFile();

    //Adds a JList to the GUI with the ArrayList loaded from binary file
    list = new JList(alCar.toArray());
    list.setLayout(new FlowLayout());
    list.setVisible(true);
    list.setVisibleRowCount(10);
    list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    list.add(new JScrollPane());

    //JList selection event
    list.addListSelectionListener(new ListSelectionListener() {
        @Override
        public void valueChanged(ListSelectionEvent e) {
            list.getSelectedIndex();
        }
    });

    //btnAddObj click event
    btnAddObj.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            sMake = JOptionPane.showInputDialog("Enter the maker of the car: ");
            sModel = JOptionPane.showInputDialog("Enter the model of the car: ");
            newYear = JOptionPane.showInputDialog("Enter the year of the car: ");
            iYear = Integer.parseInt(newYear);

            //Add new Car object to the ArrayList
            alCar.add(new Car(sMake, sModel, iYear));

            //This serializes a file
            //saveFile();

            //Notifies the ListDataListeners when changes occur in ArrayList<Car>
            for (int i = 0; i < alCar.size(); i++) {
                dlm.addElement(alCar.get(i));
            }
            list.setModel(dlm);
        }
    });

    //btnDelObj Click Event
    btnDelObj.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            for (int i = (dlm.size() - 1); i >= 0; i--) {
                dlm.remove(list.getSelectedIndex());
                //alCar.remove(list.getSelectedIndex());
            }
            list.setModel(dlm);
        }
    });

}

public static void main(String[] args) throws IOException, ClassNotFoundException {
    JFrame frame = new JFrame("Cars");
    CarApp myApp = new CarApp();
    frame.setContentPane(myApp.panelMain);
    frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);

}

//This serializes a file
public void saveFile() {
    try {
        fileName = JOptionPane.showInputDialog("Enter the name of the file you want to save to: ");
        FileOutputStream fileOut = new FileOutputStream(fileName);
        ObjectOutputStream out = new ObjectOutputStream(fileOut);
        out.writeObject(alCar);
        out.close();
        fileOut.close();
        JOptionPane.showMessageDialog(null, "Serialized data is saved in " + fileName);

    } catch (IOException i) {
        i.printStackTrace();
        JOptionPane.showMessageDialog(null, "A problem occurred with serialization." +
                "Make sure that the file you're saving to is in the same directory as your project." +
                "Hence, a peer to your src folder.");

    }
}

//This deserializes a file. I wasn't able to get the sorting to work after deserialization. It was working prior to this.
public void loadFile() {
    try {
        fileName = JOptionPane.showInputDialog("Enter the file you want to open: ");
        FileInputStream fileIn = new FileInputStream(fileName);
        ObjectInputStream in = new ObjectInputStream(fileIn);
        alCar = (ArrayList<Car>) in.readObject();
        for (int index = 0; index < alCar.size(); index++) {
            System.out.println(alCar.get(index).toString());

        }
        in.close();
        fileIn.close();

    } catch (IOException i) {
        JOptionPane.showMessageDialog(null, "A problem occurred during deserialization.");
        i.printStackTrace();
        return;

    } catch (ClassNotFoundException c) {
        JOptionPane.showMessageDialog(null, "Car class not found.");
        c.printStackTrace();
        return;

    }
}
}

//This class describes Car objects
class Car implements java.io.Serializable {
    private String make;
    String model;
    private int year;

/**
 * Constructor that accepts arguments from the Car object for make, model, and year.
 *
 * @param make  The maker of the car
 * @param model The model of the car
 * @param year  The year of the car
 */

public Car(String make, String model, int year) {
    this.make = make;
    this.model = model;
    this.year = year;

}

//This method describes the state (data that is stored in the object's fields at any moment)
//of the Car object.
@Override
public String toString() {
    return "(Make: " + make + ", Model: " + model + ", Year: " + year + ")";
}
}