不能将org.json.JSONArray转换为double[]

import org.json.JSONArray;
import org.json.JSONException;

public class JSONArrayToDoubleArray {
    public static double[] convert(JSONArray jsonArray) throws JSONException {
        double[] doubleArray = new double[jsonArray.length()];
        
        for (int i = 0; i < jsonArray.length(); i++) {
            doubleArray[i] = jsonArray.getDouble(i);
        }
        
        return doubleArray;
    }
}

import org.json.JSONArray;
import org.json.JSONException;

public class Main {
    public static void main(String[] args) {
        String json = "[1.23, 4.56, 7.89]";
        
        try {
            JSONArray jsonArray = new JSONArray(json);
            double[] doubleArray = JSONArrayToDoubleArray.convert(jsonArray);
            
            for (double d : doubleArray) {
                System.out.println(d);
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }
}