[securesocial play-master-2.2.x][play 2.3.6] Cast Exception BoxedUnit to Authenticator

[Markus Wuersch]

Hi,

I am noticing that after I have not logged in for a while I am getting the below cast exception (scala.runtime.BoxedUnit cannot be cast to securesocial.core.authenticator.Authenticator). I am guessing it has something to do with expired tokens since it only happens after a while of inactivity for a user. 

I have seen a similar post but, unfortunately, it didn't help since it was about a custom implementation of AuthenticatorStore. I am using the out-of-the-box Authenticator.

Any pointers to this? 

Thanks,

Markus

2014-11-27 13:52:25,129 - [ERROR] - from play in play-akka.actor.default-dispatcher-8 Cannot invoke the action, eventually got an error: java.lang.ClassCastException: scala.runtime.BoxedUnit cannot be cast to securesocial.core.authenticator.Authenticator2014-11-27 13:52:25,130 - [ERROR] - from application in play-akka.actor.default-dispatcher-8 ! @6kb8a3adp - Internal server error, for (GET) [/v1/children?timestamp=1417096345235] ->play.api.Application$$anon$1: Execution exception[[ClassCastException: scala.runtime.BoxedUnit cannot be cast to securesocial.core.authenticator.Authenticator]] at play.api.Application$class.handleError(Application.scala:296) ~[com.typesafe.play.play_2.11-2.3.6.jar:2.3.6] at play.api.DefaultApplication.handleError(Application.scala:402) [com.typesafe.play.play_2.11-2.3.6.jar:2.3.6] at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$3$$anonfun$applyOrElse$4.apply(PlayDefaultUpstreamHandler.scala:320) [com.typesafe.play.play_2.11-2.3.6.jar:2.3.6] at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$3$$anonfun$applyOrElse$4.apply(PlayDefaultUpstreamHandler.scala:320) [com.typesafe.play.play_2.11-2.3.6.jar:2.3.6] at scala.Option.map(Option.scala:145) [org.scala-lang.scala-library-2.11.1.jar:na] at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$3.applyOrElse(PlayDefaultUpstreamHandler.scala:320) [com.typesafe.play.play_2.11-2.3.6.jar:2.3.6] at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$3.applyOrElse(PlayDefaultUpstreamHandler.scala:316) [com.typesafe.play.play_2.11-2.3.6.jar:2.3.6] at scala.concurrent.Future$$anonfun$recoverWith$1.apply(Future.scala:344) [org.scala-lang.scala-library-2.11.1.jar:na] at scala.concurrent.Future$$anonfun$recoverWith$1.apply(Future.scala:343) [org.scala-lang.scala-library-2.11.1.jar:na] at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32) [org.scala-lang.scala-library-2.11.1.jar:na] at play.api.libs.iteratee.Execution$trampoline$.execute(Execution.scala:46) [com.typesafe.play.play-iteratees_2.11-2.3.6.jar:2.3.6] at scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:40) [org.scala-lang.scala-library-2.11.1.jar:na] at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:248) [org.scala-lang.scala-library-2.11.1.jar:na] at scala.concurrent.impl.Promise$DefaultPromise.link(Promise.scala:304) [org.scala-lang.scala-library-2.11.1.jar:na] at scala.concurrent.impl.Promise$DefaultPromise.linkRootOf(Promise.scala:289) [org.scala-lang.scala-library-2.11.1.jar:na] at scala.concurrent.Future$$anonfun$flatMap$1.apply(Future.scala:253) [org.scala-lang.scala-library-2.11.1.jar:na] at scala.concurrent.Future$$anonfun$flatMap$1.apply(Future.scala:249) [org.scala-lang.scala-library-2.11.1.jar:na] at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32) [org.scala-lang.scala-library-2.11.1.jar:na] at play.core.j.HttpExecutionContext$$anon$2.run(HttpExecutionContext.scala:40) [com.typesafe.play.play_2.11-2.3.6.jar:2.3.6] at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:41) [com.typesafe.akka.akka-actor_2.11-2.3.4.jar:na] at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:393) [com.typesafe.akka.akka-actor_2.11-2.3.4.jar:na] at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) [org.scala-lang.scala-library-2.11.1.jar:na] at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) [org.scala-lang.scala-library-2.11.1.jar:na] at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) [org.scala-lang.scala-library-2.11.1.jar:na] at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) [org.scala-lang.scala-library-2.11.1.jar:na]Caused by: java.lang.ClassCastException: scala.runtime.BoxedUnit cannot be cast to securesocial.core.authenticator.Authenticator at securesocial.core.java.Secured$1$2.apply(Secured.java:86) ~[ws.securesocial.securesocial_2.11-master-SNAPSHOT.jar:master-SNAPSHOT] at play.core.j.FPromiseHelper$$anonfun$flatMap$1.apply(FPromiseHelper.scala:101) ~[com.typesafe.play.play_2.11-2.3.6.jar:2.3.6] at play.core.j.FPromiseHelper$$anonfun$flatMap$1.apply(FPromiseHelper.scala:101) ~[com.typesafe.play.play_2.11-2.3.6.jar:2.3.6] at scala.concurrent.Future$$anonfun$flatMap$1.apply(Future.scala:251) [org.scala-lang.scala-library-2.11.1.jar:na] ... 9 common frames omitted

[Markus Wuersch]

here is a better formatted version of the exception trace:

[Fernando Moyses]

Hi!

We're facing the same problem with 3.0-M1-play-2.2.x

With some debug we think the problem is with the "Authenticator.scala".

There's a method:

def discarding(javaContext: play.mvc.Http.Context): Future[Unit]

This returns a Unit for Java Actions when there's a timeout.

In the "Secured.java" source there's:

return F.Promise.wrap(authenticatorOption.get().discarding(ctx)).flatMap(
                                        new F.Function<Authenticator, F.Promise<Result>>() {
                                            @Override
                                            public F.Promise<Result> apply(Authenticator authenticator) throws Throwable {
                                                return responses.notAuthenticatedResult(ctx);
                                            }
                                        }
                                );

The flatMap is expecting an Authenticator for the discarding method, but it's actually receiving the Unit as expected by Authenticator.discarding signature.

It seems to be a bug.

Maybe jaliss could give us a hand?

[Fernando Moyses]

Ops!

Looks like someone already did it.

https://github.com/jaliss/securesocial/pull/493

[Markus Wuersch]

Yes, Jorge actually contacted me saying that it will be fixed with the next master update (sorry for not updating this thread!). I suppose until then we can build it ourselves with this pull request merged. 

Cheers,

Markus

—
sent from mobile

[Jorge Aliss]

Guys,

I just updated master-SNAPSHOT with a fix.

Let me know if it works for you.

Thanks,

Jorge

[Fernando Moyses]

Hi Jorge!

We're currently using master-play-2.2.x. Will this branch be updated?

Thanks!

[Jorge Aliss]

If many people need it I can port some changes to the play-2.2.x branch.  My plan is to continue working on 2.3.