java.lang.NullPointerException

GitHub | ktoso | 4 months ago
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  1. 0

    NPE in ClusterSingleton

    GitHub | 4 months ago | ktoso
    java.lang.NullPointerException
  2. 0
    samebug tip
    It might be that there's another process connecting to the same port you're trying to use, try to kill it or change the connection port.
  3. 0

    Cluster unreachable and a lot of cluster connections

    Google Groups | 2 years ago | Johannes Berg
    java.lang.IllegalStateException: Error encountered while processing >>> system message acknowledgement buffer: [3 {0, 1, 2, 3}] ack: ACK[2114, {}] >>> at >>> akka.remote.ReliableDeliverySupervisor$$anonfun$receive$1.applyOrElse(Endpoint.scala:287) >>> ~[akka-remote_2.11-2.3.9.jar:na] >>> at akka.actor.Actor$class.aroundReceive(Actor.scala:465) at >>> akka.remote.ReliableDeliverySupervisor.aroundReceive(Endpoint.scala:188) >>> ~[akka-remote_2.11-2.3.9.jar:na] >>> at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at akka.cluster.singleton.ClusterSingletonProxy$$anonfun$receive$1.applyOrElse()
    2. akka.cluster.singleton
      ClusterSingletonProxy$$anonfun$receive$1.applyOrElse
      1. akka.cluster.singleton.ClusterSingletonProxy$$anonfun$receive$1.applyOrElse(ClusterSingletonProxy.scala:232)
      1 frame
    3. Akka Actor
      Actor.aroundReceive$
      1. akka.actor.Actor.aroundReceive(Actor.scala:484)
      2. akka.actor.Actor.aroundReceive$(Actor.scala:484)
      2 frames
    4. akka.cluster.singleton
      ClusterSingletonProxy.aroundReceive
      1. akka.cluster.singleton.ClusterSingletonProxy.aroundReceive(ClusterSingletonProxy.scala:132)
      1 frame
    5. Akka Actor
      Mailbox.processMailbox
      1. akka.actor.ActorCell.receiveMessage(ActorCell.scala:526)
      2. akka.actor.ActorCell.invoke(ActorCell.scala:495)
      3. akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)
      3 frames