How to check whether any application is set to selected Mock Locations setting or not in Android Marshmallow

Question

For Android Lollipop and below versions I am checking like below.

if (Secure.getString(this.cordova.getActivity().getContentResolver(), Secure.ALLOW_MOCK_LOCATION).equals("0")) {
            return true;
        } else {
            return false;
        }

But for Android M this option is removed. Right now for Android M I am doing Like below. But this is not working and throwing an exception.

if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
        {
            AppOpsManager opsManager = (AppOpsManager) this.cordova.getActivity().getApplicationContext().getSystemService(Context.APP_OPS_SERVICE);
            PackageManager pm = this.cordova.getActivity().getApplicationContext().getPackageManager();
            List<ApplicationInfo> packages = pm.getInstalledApplications(PackageManager.GET_META_DATA);
            for (ApplicationInfo applicationInfo : packages) {
                if (opsManager.checkOp(AppOpsManager.OPSTR_MOCK_LOCATION, applicationInfo.uid, applicationInfo.packageName)== AppOpsManager.MODE_ALLOWED) {
                    return true;
                    break;
                }
            }
        }

To Solve this issue I've read all the below links but nothing is satisfying my Requirement. My Requiremnet is, If any of the app set to use Mock Location then I should get the true. Based on that I will notify the user to set the option nothing

1. How to read selected mock location app in Android M - API 23

2. Disable / Check for Mock Location (prevent gps spoofing)