dex加载后导入类报错

importClass(Packages.androidx.core.graphics.ColorUtils);

package com.yashu.aaaaaaaaaaaaaaaaaaaaaa;
public class YaShu {
    public static final String TAG = "yashu";
    public YaShu() {
        //定义构造函数，输出Hello World
        System.out.println("Hello World");
    }
    private String name = "yashu";
    private static int age = 20;
    public int height = 180;
    //有参数构造函数，实现给
    public YaShu(String n) {
        name = n;
    }
    public String getUrl() {
        return "http://www.baidu.com";
    }
    public static int getAge() {
        return age;
    }
}

let filePath = "/sdcard/aaa/classes_merge9.dex";
runtime.loadDex(filePath);
importClass(com.yashu.aaaaaaaaaaaaaaaaaaaaaa.YaShu);
log(Object.prototype.toString.call(YaShu));
log(YaShu.TAG);
log(YaShu.getAgee());
r = new YaShu("Freddie Mercury");
log(r);
log(r.getUrl());