com.esotericsoftware.kryo.SerializationException: Unable to serialize object of type: java.util.concurrent.ConcurrentHashMap

Google Groups | Raja Patil | 4 years ago
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    Google Groups | 4 years ago | Raja Patil
    com.esotericsoftware.kryo.SerializationException: Unable to serialize object of type: java.util.concurrent.ConcurrentHashMap
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    Stack Overflow | 2 years ago | Narendra Choudhary
    com.esotericsoftware.kryo.KryoException: java.util.ConcurrentModificationException Full StackTrace is pasted below:- Exception in thread "main" com.esotericsoftware.kryo.KryoException: java.util.ConcurrentModificationException Serialization trace: classes (sun.misc.Launcher$AppClassLoader) classloader (java.security.ProtectionDomain) context (java.security.AccessControlContext) acc (org.apache.spark.util.MutableURLClassLoader) referent (java.lang.ref.WeakReference) factoryClassLoader (org.apache.commons.pool2.impl.GenericObjectPool)
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  1. bpbhat77 4 times, last 1 year ago
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Root Cause Analysis

  1. java.util.ConcurrentModificationException

    No message provided

    at java.util.Vector$Itr.checkForComodification()
  2. Java RT
    Vector$Itr.next
    1. java.util.Vector$Itr.checkForComodification(Vector.java:1127)
    2. java.util.Vector$Itr.next(Vector.java:1104)
    2 frames
  3. kryo
    ReferenceFieldSerializer.writeObjectData
    1. com.esotericsoftware.kryo.serialize.CollectionSerializer.writeObjectData(CollectionSerializer.java:85)
    2. com.esotericsoftware.kryo.serialize.FieldSerializer.writeObjectData(FieldSerializer.java:175)
    3. com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.writeObjectData(ReferenceFieldSerializer.java:52)
    4. com.esotericsoftware.kryo.serialize.FieldSerializer.writeObjectData(FieldSerializer.java:175)
    5. com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.writeObjectData(ReferenceFieldSerializer.java:52)
    6. com.esotericsoftware.kryo.serialize.FieldSerializer.writeObjectData(FieldSerializer.java:175)
    7. com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.writeObjectData(ReferenceFieldSerializer.java:52)
    7 frames
  4. Kryo
    Kryo.writeClassAndObject
    1. com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:489)
    1 frame
  5. kryo
    ReferenceFieldSerializer.writeObjectData
    1. com.esotericsoftware.kryo.serialize.ArraySerializer.writeArray(ArraySerializer.java:123)
    2. com.esotericsoftware.kryo.serialize.ArraySerializer.writeObjectData(ArraySerializer.java:88)
    3. com.esotericsoftware.kryo.serialize.FieldSerializer.writeObjectData(FieldSerializer.java:175)
    4. com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.writeObjectData(ReferenceFieldSerializer.java:52)
    4 frames
  6. Kryo
    Serializer.writeObject
    1. com.esotericsoftware.kryo.Serializer.writeObject(Serializer.java:43)
    1 frame
  7. kryo
    ReferenceFieldSerializer.writeObjectData
    1. com.esotericsoftware.kryo.serialize.FieldSerializer.writeObjectData(FieldSerializer.java:182)
    2. com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.writeObjectData(ReferenceFieldSerializer.java:52)
    3. com.esotericsoftware.kryo.serialize.FieldSerializer.writeObjectData(FieldSerializer.java:175)
    4. com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.writeObjectData(ReferenceFieldSerializer.java:52)
    4 frames
  8. Kryo
    Kryo.writeClassAndObject
    1. com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:489)
    1 frame
  9. kryo
    ReferenceFieldSerializer.writeObjectData
    1. com.esotericsoftware.kryo.serialize.ArraySerializer.writeArray(ArraySerializer.java:123)
    2. com.esotericsoftware.kryo.serialize.ArraySerializer.writeObjectData(ArraySerializer.java:88)
    3. com.esotericsoftware.kryo.serialize.FieldSerializer.writeObjectData(FieldSerializer.java:175)
    4. com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.writeObjectData(ReferenceFieldSerializer.java:52)
    4 frames
  10. Kryo
    Serializer.writeObject
    1. com.esotericsoftware.kryo.Serializer.writeObject(Serializer.java:43)
    1 frame
  11. kryo
    ReferenceFieldSerializer.writeObjectData
    1. com.esotericsoftware.kryo.serialize.FieldSerializer.writeObjectData(FieldSerializer.java:182)
    2. com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.writeObjectData(ReferenceFieldSerializer.java:52)
    3. com.esotericsoftware.kryo.serialize.FieldSerializer.writeObjectData(FieldSerializer.java:175)
    4. com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.writeObjectData(ReferenceFieldSerializer.java:52)
    5. com.esotericsoftware.kryo.serialize.FieldSerializer.writeObjectData(FieldSerializer.java:175)
    6. com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.writeObjectData(ReferenceFieldSerializer.java:52)
    7. com.esotericsoftware.kryo.serialize.FieldSerializer.writeObjectData(FieldSerializer.java:175)
    8. com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.writeObjectData(ReferenceFieldSerializer.java:52)
    9. com.esotericsoftware.kryo.serialize.FieldSerializer.writeObjectData(FieldSerializer.java:175)
    10. com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.writeObjectData(ReferenceFieldSerializer.java:52)
    10 frames
  12. Kryo
    Kryo.writeClassAndObject
    1. com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:489)
    1 frame
  13. kryo
    MapSerializer.writeObjectData
    1. com.esotericsoftware.kryo.serialize.MapSerializer.writeObjectData(MapSerializer.java:104)
    1 frame
  14. Kryo
    ObjectBuffer.writeObject
    1. com.esotericsoftware.kryo.Serializer.writeObject(Serializer.java:43)
    2. com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:520)
    3. com.esotericsoftware.kryo.ObjectBuffer.writeObject(ObjectBuffer.java:251)
    3 frames
  15. memcached-session-manager kryo-serializer
    KryoTranscoder.serializeAttributes
    1. de.javakaffee.web.msm.serializer.kryo.KryoTranscoder.serializeAttributes(KryoTranscoder.java:272)
    1 frame
  16. memcached-session-manager core
    RequestTrackingHostValve.invoke
    1. de.javakaffee.web.msm.TranscoderService.serializeAttributes(TranscoderService.java:153)
    2. de.javakaffee.web.msm.BackupSessionTask.serializeAttributes(BackupSessionTask.java:175)
    3. de.javakaffee.web.msm.BackupSessionTask.call(BackupSessionTask.java:109)
    4. de.javakaffee.web.msm.BackupSessionTask.call(BackupSessionTask.java:50)
    5. de.javakaffee.web.msm.BackupSessionService$SynchronousExecutorService.submit(BackupSessionService.java:346)
    6. de.javakaffee.web.msm.BackupSessionService.backupSession(BackupSessionService.java:205)
    7. de.javakaffee.web.msm.MemcachedSessionService.backupSession(MemcachedSessionService.java:1059)
    8. de.javakaffee.web.msm.RequestTrackingHostValve.backupSession(RequestTrackingHostValve.java:229)
    9. de.javakaffee.web.msm.RequestTrackingHostValve.invoke(RequestTrackingHostValve.java:154)
    9 frames
  17. Glassfish Core
    CoyoteAdapter.service
    1. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    2. org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
    3. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    4. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    4 frames
  18. Grizzly HTTP
    JIoEndpoint$SocketProcessor.run
    1. org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
    2. org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
    3. org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    3 frames
  19. Java RT
    Thread.run
    1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    3. java.lang.Thread.run(Thread.java:679)
    3 frames