hub.register(token, tag); throws exception if already registered

[hangryfabian]

hub.register() crashes the second time (i.e. you cannot run this or change the registered tag every time on launch).
This used to work in a previous version, where we can re-register a new tag when a user logged out of their account and registered/signed in with a new one.

We are handling this by storing the FCM tokens, but this function should be failing gracefully, or calling a update registration with new tag instead. It shouldn't throw a random exception.

Thanks!

[brannon]

Hi, can you provide any more detail? Maybe a callstack or simple code sample?
Thanks!

[hangryfabian]

//issue: fcm push messaging is working properly. hub.register works the first time you launch the app. Every subsequent time it crashes. In a previous version we would call hub.reg with a new tag and it would 'update' the registration automatically (that's how we do it on iOS too)

CODE:

public class MyInstanceIDService extends FirebaseMessagingService {

@Override
public void onNewToken(String s) {
	super.onNewToken(s);

	Mediator.getInstance().fcmToken = s;
	MyInstanceIDService.RegisterFCM(getApplicationContext());
}

private static void RegisterFCM(Context context)
{
	NotificationHub hub = new NotificationHub(Constants.getAzureHubname(), Constants.getAzureHubListenAccess(), context);

	String token = Mediator.getInstance().fcmToken;
	if (token == null || token.length() == 0 )
		return;

	String regId = null;

	try 
	{
		String tag = "user_" + Mediator.getInstance().getTheUser().userid;
		regId = hub.register(token, tag).getRegistrationId(); //works the first time we reg, crashes on subsquent calls
		Utilities.log(regId);

	} catch (Exception e) {
		//e.getmessage() is null
		//stack output below
	}
}

}

STACK
stack trace = android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1513)
java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:117)
java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:105)
java.net.InetAddress.getAllByName(InetAddress.java:1154)
com.android.okhttp.Dns$1.lookup(Dns.java:39)
com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:198)
com.android.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:146)
com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:88)
com.android.okhttp.internal.http.StreamAllocation.findConnection(StreamAllocation.java:190)
com.android.okhttp.internal.http.StreamAllocation.findHealthyConnection(StreamAllocation.java:142)
com.android.okhttp.internal.http.StreamAllocation.newStream(StreamAllocation.java:104)
com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:392)
com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:325)
com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:470)
com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:127)
com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.connect(DelegatingHttpsURLConnection.java:89)
com.android.okhttp.internal.huc.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:26)
com.microsoft.windowsazure.messaging.Connection.executeRequest(Connection.java:213)
com.microsoft.windowsazure.messaging.Connection.executeRequest(Connection.java:172)
com.microsoft.windowsazure.messaging.Connection.executeRequest(Connection.java:132)
com.microsoft.windowsazure.messaging.NotificationHub.refreshRegistrationInformation(NotificationHub.java:297)
com.microsoft.windowsazure.messaging.NotificationHub.registerInternal(NotificationHub.java:391)
com.microsoft.windowsazure.messaging.NotificationHub.register(NotificationHub.java:144)
singletons.MyInstanceIDService.RegisterFCM(MyInstanceIDService.java:138)
singletons.MyInstanceIDService.access$000(MyInstanceIDService.java:51)
singletons.MyInstanceIDService$1.onSuccess(MyInstanceIDService.java:197)
singletons.MyInstanceIDService$1.onSuccess(MyInstanceIDService.java:187)
com.google.android.gms.tasks.zzn.run(Unknown Source:4)
android.os.Handler.handleCallback(Handler.java:873)
android.os.Handler.dispatchMessage(Handler.java:99)
android.os.Looper.loop(Looper.java:214)
android.app.ActivityThread.main(ActivityThread.java:6981)
java.lang.reflect.Method.invoke(Native Method)
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1445)

[kingbin]

I'm seeing an error with a similar call to hub.register(token) as well. Not sure if it's related to this issue.

I'm seeing "com.microsoft.windowsazure.messaging.NotificationHubUnauthorizedException: Unauthorized" returned from "return registerInternal(registration);" of notification-hubs-android-sdk-0.6/NotificationHub.java

This was working previously.

[aziztitu]

@hangryfabian We were not able to reproduce this issue on our end. Are you still experiencing this issue on the new version of the SDK?