Gadget Script rpc.exports.init is not able to override methods

[XEonAX]

I am using below config file (libanx.config.so)

{
    "interaction": {
        "type": "script",
        "path": "/etc/ANXCamera/anx.js",
        "on_change": "reload"
    }
}

With following content in anx.js

const TAG = "[ANX]";
const NativeLog = new NativeFunction(Module.getExportByName(null, '__android_log_write'), 'int', ['int', 'pointer', 'pointer']);
const NativeTAG = Memory.allocUtf8String(TAG);
NativeLog(3, NativeTAG, Memory.allocUtf8String("Enter"));

rpc.exports = {
    init: function (stage, parameters) {
        NativeLog(3, NativeTAG, Memory.allocUtf8String("Init="+stage));

        Java.perform(function () {
            NativeLog(3, NativeTAG, Memory.allocUtf8String("Perform"));
            var LogClass = Java.use("android.util.Log");
            var TAG_L = "[ANX]";
            Log.v(TAG_L, "Log Start");

            Java.use('miui.external.Application').initializeSdk.implementation = function () {
                Log.v(TAG_L, "Application.initializeSdk==>true");
                return true;
            }
            Java.use('miui.external.Application').loadSdk.implementation = function () {
                Log.v(TAG_L, "Application.loadSdk==>true");
                return true;
            }

            console.log("Java perform..");

            var Log = Java.use("android.util.Log");
            Log.v(TAG_L, "is Online");
            Java.use('miui.external.Application').initializeSdk.implementation = function () {
                Log.v(TAG_L, "Application.initializeSdk==>true");
                return true;
            }
            Java.use('miui.external.Application').loadSdk.implementation = function () {
                Log.v(TAG_L, "Application.loadSdk==>true");
                return true;
            }
        });
    },
    dispose: function () {
        console.log('[dispose]');
    }
};

I find the Java.perform block is not executed before the actual calls to miui.external.Application.initializeSdk

In the logcat I can see below

09-12 19:18:58.654 11718 11718 D [ANX]   : Enter
09-12 19:18:58.654 11718 11718 D [ANX]   : Init=early
09-12 19:18:58.701 11718 11718 I ANX     : Loaded: 54.52595mS

Where the last line is called from the Java code ANXLoader.Load() which loads the Gadget i.e. System.loadLibrary

package miui.external;
...
public class Application extends android.app.Application implements SdkConstants {
...
    public Application() {
        ANXLoader.Load();
        ANXLoader.Wait();
        if (loadSdk() && initializeSdk()) {
            this.mInitialized = true;
        }
    }

    private boolean initializeSdk() {
            return false;
    }

    private boolean loadSdk() {
            return false;
    }
...
}

ANXLoader Code is as below

package com.android.camera;
import android.util.Log;

public class ANXLoader {

    public float endTime;
    public boolean loaded;
    public ANXLoader(float startTime){
        System.loadLibrary("anx");
        endTime = System.nanoTime();
        Log.i("ANX", "Loaded: "+  ((endTime-startTime)/1000000)+ "mS\n");
        loaded=true;
    }

    public static class InternalLoader {
        static long startTime = System.nanoTime();

        public static final ANXLoader ANXLoader = new ANXLoader(startTime);

        public static boolean Load(){
            return ANXLoader.loaded;
        }
    }

    public static boolean Load(){
        return InternalLoader.Load();
    }
    public static void Wait(){
        try {
            Thread.sleep(200);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

frida-gadget-14.2.18-android-arm64.so is renamed to libanx.so And it seems to load. and even execute the script file provided by the libanx.config.so

What do I need to do overload the methods? OS: Android 11 Frida: 14.2.18 since 15.0.18 server on android was not able to connect to frida-cli on Android 11.