正则表达式\p{Cs}与Java 16中的符号不匹配

String text = "\u{1F60A}";
Pattern pattern = Pattern.compile("\u{1F60A}");
Matcher matcher = pattern.matcher(text);

import com.ibm.icu.text.CharsetDetector;
import com.ibm.icu.text.CharsetMatch;

public class Main {
    public static void main(String[] args) {
        String text = "😊";
        CharsetDetector detector = new CharsetDetector();
        detector.setText(text.getBytes());
        CharsetMatch match = detector.detect();
        System.out.println("Detected charset: " + match.getName());
    }
}