JDialog内容不显示

我正在开发一个JDialog，我希望调用visible方法后它弹出并等待我点击按钮，然后返回我点击的按钮
这是我现在所使用的代码

package window;

import javax.swing.*;
import java.awt.*;
import java.util.concurrent.CountDownLatch;

public class JD_ask extends JDialog {
    private final JLabel text_Label = new JLabel();
    private int choice = 0;
    private CountDownLatch latch;

    public JD_ask(Window window) {
        super(window);
        Container container = getContentPane();
        JButton ok_Button = new JButton("好的");
        JButton cancel_Button = new JButton("取消");

        setSize(250, 200);
        setLayout(null);
        text_Label.setBounds(20, 20, 250, 50);
        ok_Button.setBounds(40, 130, 80, 30);
        cancel_Button.setBounds(150, 130, 80, 30);

        container.add(cancel_Button);
        container.add(ok_Button);
        container.add(text_Label);

        cancel_Button.addActionListener(e -> {
            setVisible(false);
            choice = 0;
            latch.countDown();
        });
        ok_Button.addActionListener(e -> {
            setVisible(false);
            choice = 1;
            latch.countDown();
        });
    }
    public int visible(String title) {
        latch = new CountDownLatch(1);
        text_Label.setText(title);
        setVisible(true);

        try {
            latch.await();
        } catch (InterruptedException ignored) {}

        return choice;
    }
}

但是，当我调用visible方法后，虽然确实有窗口弹出，但没有显示按钮和文字
现在基本可以确定问题出在这行代码

latch.await();

我也尝试过将它改为

while (isVisible()){
            Thread.onSpinWait();
        }

但没有改变
我应该怎么修改

问题解决了，JOptionPane.showConfirmDialog()可以解决我的问题