如何在使用app_process启动的java shell进程中获取应用程序对象？

import java.lang.reflect.Method;

public class Main {

    public static void main(String[] args) {
        try {
            // 1. 获取ActivityThread类的实例
            Class<?> activityThreadClass = Class.forName("android.app.ActivityThread");
            Method currentActivityThreadMethod = activityThreadClass.getDeclaredMethod("currentActivityThread");
            currentActivityThreadMethod.setAccessible(true);
            Object activityThread = currentActivityThreadMethod.invoke(null);

            // 2. 获取应用程序的Application对象
            Method getApplicationMethod = activityThreadClass.getDeclaredMethod("getApplication");
            getApplicationMethod.setAccessible(true);
            Object application = getApplicationMethod.invoke(activityThread);

            // 3. 使用应用程序对象进行相应操作
            // 例如，获取应用程序的包名
            Method getPackageNameMethod = application.getClass().getMethod("getPackageName");
            String packageName = (String) getPackageNameMethod.invoke(application);
            System.out.println("Package name: " + packageName);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}