A new day of battle

How I am calling the content provider from App B:

        @SuppressLint("Recycle") Cursor cursor = getContentResolver().query(Uri.parse("content://com.phehossof.requisition.ProviderContent/acl"), null, null, null, null, null);
        if (isNull(cursor))
            NotAuthorized();
        assert cursor != null;
        if(cursor.moveToFirst()) {
            while(!cursor.isAfterLast()) {
                username = cursor.getString(cursor.getColumnIndex("name"));
                grade = cursor.getString(cursor.getColumnIndex("grade"));
                department = cursor.getString(cursor.getColumnIndex("department"));
                getPermissions(getString(R.string.app_name), Integer.parseInt(grade), Integer.parseInt(department));
            }
        } else {
            NotAuthorized();
        }