Hm, interesting. Even if the classTag is causing the problem there might be something more here.
permits must not be negative java.lang.IllegalStateException: permits must not be negative at akka.persistence.RecoveryPermitter.akka$persistence$RecoveryPermitter$$returnRecoveryPermit(RecoveryPermitter.scala:63) That indicates that the permits are not released correctly. Perhaps something with the error handling in PersistentFSM? Could you create an issue, and a reproducer would be helpful? /Patrik lör 15 juli 2017 kl. 19:28 skrev Hengky Sucanda <gregluwin...@gmail.com>: > It's resolved by implementing the domain event class tag by specifying the > runtime class as classOf[] instead of using classTag from scala.reflect > > > On Saturday, July 15, 2017 at 11:35:04 PM UTC+7, Hengky Sucanda wrote: > >> Hi Guys, i am experiencing NPE when starting a persistent FSM that is >> cluster sharded: >> >> a.a.OneForOneStrategy - null >> java.lang.NullPointerException: null >> at >> akka.persistence.fsm.PersistentFSM$$anonfun$receiveRecover$1.applyOrElse(PersistentFSM.scala:121) >> ~[akka-persistence_2.11-2.5.3.jar:na] >> at >> scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36) >> ~[scala-library-2.11.9.jar:1.0.1] >> at >> co.styletheory.user.impl.process.registration.UserRegistrationProcess$$anonfun$receiveRecover$1.applyOrElse(UserRegistrationProcess.scala:60) >> ~[classes/:na] >> at >> scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36) >> ~[scala-library-2.11.9.jar:1.0.1] >> at >> akka.persistence.Eventsourced$$anon$3$$anonfun$1.applyOrElse(Eventsourced.scala:452) >> ~[akka-persistence_2.11-2.5.3.jar:na] >> at akka.actor.Actor$class.aroundReceive(Actor.scala:513) >> ~[akka-actor_2.11-2.5.3.jar:na] >> at >> co.styletheory.user.impl.process.registration.UserRegistrationProcess.akka$persistence$Eventsourced$$super$aroundReceive(UserRegistrationProcess.scala:10) >> ~[classes/:na] >> at >> akka.persistence.Eventsourced$$anon$4.stateReceive(Eventsourced.scala:538) >> ~[akka-persistence_2.11-2.5.3.jar:na] >> at >> akka.persistence.Eventsourced$class.aroundReceive(Eventsourced.scala:183) >> ~[akka-persistence_2.11-2.5.3.jar:na] >> at >> co.styletheory.user.impl.process.registration.UserRegistrationProcess.aroundReceive(UserRegistrationProcess.scala:10) >> ~[classes/:na] >> [error] a.a.OneForOneStrategy - permits must not be negative >> java.lang.IllegalStateException: permits must not be negative >> at >> akka.persistence.RecoveryPermitter.akka$persistence$RecoveryPermitter$$returnRecoveryPermit(RecoveryPermitter.scala:63) >> ~[akka-persistence_2.11-2.5.3.jar:na] >> at >> akka.persistence.RecoveryPermitter$$anonfun$receive$1.applyOrElse(RecoveryPermitter.scala:52) >> ~[akka-persistence_2.11-2.5.3.jar:na] >> at akka.actor.Actor$class.aroundReceive(Actor.scala:513) >> ~[akka-actor_2.11-2.5.3.jar:na] >> at >> akka.persistence.RecoveryPermitter.aroundReceive(RecoveryPermitter.scala:32) >> ~[akka-persistence_2.11-2.5.3.jar:na] >> at akka.actor.ActorCell.receiveMessage(ActorCell.scala:527) >> [akka-actor_2.11-2.5.3.jar:na] >> at akka.actor.ActorCell.invoke(ActorCell.scala:496) >> [akka-actor_2.11-2.5.3.jar:na] >> at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257) >> [akka-actor_2.11-2.5.3.jar:na] >> at akka.dispatch.Mailbox.run(Mailbox.scala:224) >> [akka-actor_2.11-2.5.3.jar:na] >> at akka.dispatch.Mailbox.exec(Mailbox.scala:234) >> [akka-actor_2.11-2.5.3.jar:na] >> at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) >> [akka-actor_2.11-2.5.3.jar:na] >> >> >> My FSM looks like this: >> >> class UserRegistrationProcess(implicit val domainEventClassTag: >> ClassTag[RegistrationEvent]) >> extends PersistentFSM[RegistrationStatus, RegistrationForm, >> RegistrationEvent] { >> >> println("starting actor process") >> >> override def persistenceId = s"RegistrationProcess-${self.path.name}" >> >> override def applyEvent(domainEvent: RegistrationEvent, currentData: >> RegistrationForm): RegistrationForm = { >> domainEvent match { >> case RegistrationRequested(request) => >> currentData.fillForm(request) >> case UserRegistered(email) => DuplicateRegistrationForm >> case UserRegistrationCompleted(email) => CompleteRegistrationForm >> case _ => currentData >> } >> } >> >> startWith(NotRegistered, EmptyRegistrationForm) >> >> when(NotRegistered) { >> case Event(InitiateRegistrationProcess(id, request), data) => >> println("test 2") >> val senderRef = sender() >> goto(Registering) applying RegistrationRequested(request) andThen >> (data => senderRef ! data) >> case Event(_, data) => >> println("test") >> stay replying data >> } >> >> when(Registering) { >> case Event(MarkUserRegisteredFromDuplicateForm(email), _) => >> val senderRef = sender() >> goto(Registered) applying UserRegistered(email) andThen (data => >> senderRef ! data) >> case Event(MarkRegistrationComplete(email), _) => >> val senderRef = sender() >> goto(Registered) applying UserRegistrationCompleted(email) andThen >> (data => senderRef ! data) >> case Event(InitiateRegistrationProcess(id, request), data) => >> stay() replying data >> } >> >> when(Registered) { >> case Event(InitiateRegistrationProcess(id, request), data) => >> stay() replying DuplicateRegistrationForm >> case Event(_, data) => >> stay replying data >> } >> >> override def receiveRecover: Receive = { >> case null => >> case any => >> println("recovering " + any.toString) >> super.receiveRecover(any) >> } >> } >> >> >> Been debugging from some time and can't figure out why it happens. Any >> help is appreciated. >> > -- > >>>>>>>>>> Read the docs: http://akka.io/docs/ > >>>>>>>>>> Check the FAQ: > http://doc.akka.io/docs/akka/current/additional/faq.html > >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user > --- > You received this message because you are subscribed to the Google Groups > "Akka User List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to akka-user+unsubscr...@googlegroups.com. > To post to this group, send email to akka-user@googlegroups.com. > Visit this group at https://groups.google.com/group/akka-user. > For more options, visit https://groups.google.com/d/optout. > -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. 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