Login failed if using reflection

General
1

The below login code in my Android application has been working fine up to yesterday.
Field userServiceField = backendlessClass.getDeclaredField(“UserService”);
userServiceField.setAccessible(true);
Object userServiceObject = userServiceField.get(backendlessClass);
Class<?> userServiceClass = userServiceObject.getClass();
Method loginMethod = userServiceClass.getDeclaredMethod(“login”, String.class, String.class, boolean.class);
Object backendlessUserObject = loginMethod.invoke(userServiceObject, username, password, true);
Today, without any changes, it failed with the following error:
ava.lang.reflect.InvocationTargetException
02-23 16:57:00.573 14877-15040/com.local.keyn.k1st W/System.err: at java.lang.reflect.Method.invoke(Native Method)
02-23 16:57:00.573 14877-15040/com.local.keyn.k1st W/System.err: at java.lang.reflect.Method.invoke(Method.java:372)
Caused by: java.lang.NullPointerException: Attempt to invoke interface method ‘java.lang.String android.content.SharedPreferences.getString(java.lang.String, java.lang.String)’ on a null object reference
Is there any update on backendless server side that I need to update my code?
Thanks
Key
(PS:I tested static call, the login works.)

2

Have you updated to the latest SDK?

3

Yes, I did yesterday and still the same error.

4

It seems to be something at our end. I’m still looking into it.

Thanks.

5

Good news that my last week version with the same reflection still works.
Thanks

6

Here’s what I tried - worked without any problems:

    final Activity activity = this;
    Thread t = new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                String APPLICATION_ID = "757E349F-XXX-my-app-id";
                final String SECRET_KEY = "115455F0-XXX-android-secret-key";
                Backendless.initApp(activity, APPLICATION_ID, SECRET_KEY, "v1");


                Class backendlessClass = Class.forName("com.backendless.Backendless");
                Field userServiceField = backendlessClass.getDeclaredField("UserService");


                userServiceField.setAccessible(true);


                Object userServiceObject = userServiceField.get(backendlessClass);


                Class&lt;?&gt; userServiceClass = userServiceObject.getClass();


                Method loginMethod = userServiceClass.getDeclaredMethod("login", String.class, String.class, boolean.class);


                Object backendlessUserObject = loginMethod.invoke(userServiceObject, "mark@backendless.com", "mypassword", true);
                Log.i( "MY APP", "User logged in" );
            } catch (Throwable t) {
                Log.e("MY APP", t.toString());
            }
        }
    });


    t.start();