Frida hook Java functions in Android

Frida.js

Java.perform(function () {
    var act1 = Java.use("CryptoUtilities");
    act1.getKey.implementation = function (arg1) {
        var ret = this.getKey("v2");
        return ret;
    };
    var db1 = Java.use("android.database.sqlite.SQLiteDatabase");
    db1.rawQuery.overload('java.lang.String', '[Ljava.lang.String;').implementation = function (arg1, arg2){
        console.log(arg1,arg1.replace("v1","v2"));
        var ret = this.rawQuery(arg1.replace("v1","v2"),arg2);
        console.log(ret);
        return ret;
    }
});