如何在Java中保持纵横比的同时将矩形图像调整为正方形图像？

import java.awt.*;
import java.awt.image.BufferedImage;

public class ImageUtils {
    public static BufferedImage adjustToSquare(BufferedImage image) {
        int width = image.getWidth();
        int height = image.getHeight();

        int squareSize = Math.max(width, height);

        BufferedImage squareImage = new BufferedImage(squareSize, squareSize, BufferedImage.TYPE_INT_RGB);
        Graphics2D graphics = squareImage.createGraphics();
        graphics.setColor(Color.WHITE);
        graphics.fillRect(0, 0, squareSize, squareSize);

        int x = (squareSize - width) / 2;
        int y = (squareSize - height) / 2;
        graphics.drawImage(image, x, y, null);
        graphics.dispose();

        return squareImage;
    }
}

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

public class Main {
    public static void main(String[] args) {
        try {
            BufferedImage image = ImageIO.read(new File("rectangle_image.jpg"));
            BufferedImage squareImage = ImageUtils.adjustToSquare(image);
            ImageIO.write(squareImage, "jpg", new File("square_image.jpg"));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}