07:44:54,423 INFO  [tech.ivoice.client.solutions.nokb.menu.NokbMenu] Receive message: SolutionResult{result='null'}
07:44:54,435 ERROR [tech.ivoice.client.solutions.nokb.menu.NokbMenu] exception during execute scenario. force hangup: java.lang.NullPointerException
    at tech.ivoice.client.solutions.nokb.menu.NokbMenu.processWhen_Greeting(NokbMenu.java:96)
    at tech.ivoice.client.solutions.nokb.menu.NokbMenu.onReceiveInternal(NokbMenu.java:72)
    at tech.ivoice.platform.prototype.sdk.solution.Solution.onReceive(Solution.java:70) [sdk-0.0.1-SNAPSHOT.jar:]
    at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:159) [akka-actor_2.10-2.1.2.jar:]
    at akka.actor.ActorCell.receiveMessage(ActorCell.scala:425) [akka-actor_2.10-2.1.2.jar:]
    at akka.actor.ActorCell.invoke(ActorCell.scala:386) [akka-actor_2.10-2.1.2.jar:]
    at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:230) [akka-actor_2.10-2.1.2.jar:]
    at akka.dispatch.Mailbox.run(Mailbox.scala:212) [akka-actor_2.10-2.1.2.jar:]
    at akka.dispatch.ForkJoinExecutorConfigurator$MailboxExecutionTask.exec(AbstractDispatcher.scala:506) [akka-actor_2.10-2.1.2.jar:]
    at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:262) [scala-library-2.10.1.jar:]
    at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:975) [scala-library-2.10.1.jar:]
    at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1478) [scala-library-2.10.1.jar:]
    at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104) [scala-library-2.10.1.jar:]

07:44:54,446 ERROR [tech.ivoice.client.solutions.nokb.menu.NokbMenu] null value in entry: message=null: java.lang.NullPointerException: null value in entry: message=null
    at com.google.common.collect.CollectPreconditions.checkEntryNotNull(CollectPreconditions.java:32) [guava-25.1-jre.jar:]
    at com.google.common.collect.ImmutableMap.entryOf(ImmutableMap.java:176) [guava-25.1-jre.jar:]
    at com.google.common.collect.ImmutableMap.of(ImmutableMap.java:142) [guava-25.1-jre.jar:]
    at tech.ivoice.platform.prototype.sdk.solution.Solution.serializeThrowable(Solution.java:115) [sdk-0.0.1-SNAPSHOT.jar:]
    at tech.ivoice.platform.prototype.sdk.solution.Solution.hangupOnCatchException(Solution.java:110) [sdk-0.0.1-SNAPSHOT.jar:]
    at tech.ivoice.platform.prototype.sdk.solution.Solution.onReceive(Solution.java:73) [sdk-0.0.1-SNAPSHOT.jar:]
    at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:159) [akka-actor_2.10-2.1.2.jar:]
    at akka.actor.ActorCell.receiveMessage(ActorCell.scala:425) [akka-actor_2.10-2.1.2.jar:]
    at akka.actor.ActorCell.invoke(ActorCell.scala:386) [akka-actor_2.10-2.1.2.jar:]
    at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:230) [akka-actor_2.10-2.1.2.jar:]
    at akka.dispatch.Mailbox.run(Mailbox.scala:212) [akka-actor_2.10-2.1.2.jar:]
    at akka.dispatch.ForkJoinExecutorConfigurator$MailboxExecutionTask.exec(AbstractDispatcher.scala:506) [akka-actor_2.10-2.1.2.jar:]
    at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:262) [scala-library-2.10.1.jar:]
    at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:975) [scala-library-2.10.1.jar:]
    at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1478) [scala-library-2.10.1.jar:]
    at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104) [scala-library-2.10.1.jar:]