GCM registration issue

[dirkam]

I get the following NPE when I try to use signed APK. It works if I run it in debug mode. I have added both (debug and signed) SHA1 to the developer console and G+ login and other APIs work well. I use the main version of the Android SDK - as suggested in #40

Any ideas what can go wrong?

    java.lang.RuntimeException: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[])' on a null object reference
            at com.baasbox.android.ExceptionHandler$1.onError(ExceptionHandler.java:33)
            at com.baasbox.android.impl.Dispatcher$Worker.run(Dispatcher.java:174)
     Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[])' on a null object reference
            at com.baasbox.android.impl.GCMWrapper.registerGCM0(GCMWrapper.java:85)
            at com.baasbox.android.impl.GCMWrapper.registerGCM(GCMWrapper.java:77)
            at com.baasbox.android.BaasCloudMessagingService.registerWithGoogle(BaasCloudMessagingService.java:85)
            at com.baasbox.android.BaasCloudMessagingService.access$200(BaasCloudMessagingService.java:22)
            at com.baasbox.android.BaasCloudMessagingService$RegisterMessaging.asyncCall(BaasCloudMessagingService.java:370)
            at com.baasbox.android.BaasCloudMessagingService$RegisterMessaging.asyncCall(BaasCloudMessagingService.java:346)
            at com.baasbox.android.impl.Task.execute(Task.java:189)
            at com.baasbox.android.impl.Dispatcher$Worker.run(Dispatcher.java:170)