ShutdownReceiver crash when phone runs out of battery, Android

[ivankostadinovic]

Phone at 0% battery, shuts down, app crashes in the background because ChatManager.getInstance() causes a RuntimeException if the Instance is Null, doesn't return Null, so the code in ShutdownReceiver "onReceive" causes the app to crash:

@OverRide
public void onReceive(Context context, Intent intent) {
if (Intent.ACTION_SHUTDOWN.equals(intent.getAction())) {
Log.i(TAG, "System shutting down");

        // disconnect the current user when the phone shutdown
        if(ChatManager.getInstance() != null) {
            ChatManager.getInstance().getMyPresenceHandler().dispose();
        }
    }
}

}

The crash: java.lang.RuntimeException: instance cannot be null. call start first.
at org.chat21.android.core.ChatManager.getInstance(ChatManager.java:409)
at org.chat21.android.core.receivers.ShutdownReceiver.onReceive(ShutdownReceiver.java:23)