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    Expert tip

    Kryo doesn't accept multi-threaded data access, there's a few workarounds for this, such as duplicating the buffer, but they sacrifice a bit of performance.

Solutions on the web

via Google Groups by Muthukumaran Kothandaraman, 1 year ago
via GitHub by israel
, 2 years ago
Encountered unregistered class ID: 788615212
via GitHub by idar
, 2 years ago
Encountered unregistered class ID: 720389982
via Apache's JIRA Issue Tracker by Stefano Bortoli, 2 years ago
Encountered unregistered class ID: 115
via locationtech.org by Unknown author, 1 year ago
com.esotericsoftware.kryo.KryoException: Encountered unregistered class ID: 1406735620*	at com.esotericsoftware.kryo.util.DefaultClassResolver.readClass(DefaultClassResolver.java:137)	at com.esotericsoftware.kryo.Kryo.readClass(Kryo.java:670)	at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:781)	at com.romix.akka.serialization.kryo.KryoBasedSerializer.fromBinary(KryoSerializer.scala:483)	at com.romix.akka.serialization.kryo.KryoSerializer.fromBinary(KryoSerializer.scala:339)	at akka.serialization.Serialization$$anonfun$deserialize$2.apply(Serialization.scala:124)	at scala.util.Try$.apply(Try.scala:192)	at akka.serialization.Serialization.deserialize(Serialization.scala:114)	at akka.persistence.serialization.MessageSerializer.akka$persistence$serialization$MessageSerializer$$payload(MessageSerializer.scala:216)	at akka.persistence.serialization.MessageSerializer.akka$persistence$serialization$MessageSerializer$$persistent(MessageSerializer.scala:198)	at akka.persistence.serialization.MessageSerializer.fromBinary(MessageSerializer.scala:69)	at akka.persistence.serialization.MessageSerializer.fromBinary(MessageSerializer.scala:28)	at akka.serialization.Serialization$$anonfun$deserialize$3.apply(Serialization.scala:142)	at scala.util.Try$.apply(Try.scala:192)	at akka.serialization.Serialization.deserialize(Serialization.scala:142)	at akka.persistence.cassandra.query.EventsByPersistenceIdPublisher.persistentFromByteBuffer(EventsByPersistenceIdPublisher.scala:90)	at akka.persistence.cassandra.query.EventsByPersistenceIdPublisher.extractEvent(EventsByPersistenceIdPublisher.scala:84)	at akka.persistence.cassandra.query.EventsByPersistenceIdPublisher.updateState(EventsByPersistenceIdPublisher.scala:77)	at akka.persistence.cassandra.query.EventsByPersistenceIdPublisher.updateState(EventsByPersistenceIdPublisher.scala:48)	at akka.persistence.cassandra.query.QueryActorPublisher.exhaustFetch(QueryActorPublisher.scala:213)	at akka.persistence.cassandra.query.QueryActorPublisher.akka$persistence$cassandra$query$QueryActorPublisher$$exhaustFetchAndBecome(QueryActorPublisher.scala:117)	at akka.persistence.cassandra.query.QueryActorPublisher$$anonfun$idle$1.applyOrElse(QueryActorPublisher.scala:101)	at akka.actor.Actor$class.aroundReceive(Actor.scala:484)	at akka.persistence.cassandra.query.QueryActorPublisher.akka$stream$actor$ActorPublisher$$super$aroundReceive(QueryActorPublisher.scala:45)	at akka.stream.actor.ActorPublisher$class.aroundReceive(ActorPublisher.scala:270)	at akka.persistence.cassandra.query.QueryActorPublisher.aroundReceive(QueryActorPublisher.scala:45)	at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526)	at akka.actor.ActorCell.invoke(ActorCell.scala:495)	at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)	at akka.dispatch.Mailbox.run(Mailbox.scala:224)	at akka.dispatch.Mailbox.exec(Mailbox.scala:234)	at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)	at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)	at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)	at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)