java.io.NotSerializableException: py4j.reflection.PythonProxyHandler

GitHub | Py4JQuestionAsker | 2 years ago
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Root Cause Analysis

  1. java.io.NotSerializableException

    py4j.reflection.PythonProxyHandler

    at java.io.ObjectOutputStream.writeObject0()
  2. Java RT
    Method.invoke
    1. java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184)
    2. java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
    3. java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
    4. java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
    5. java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
    6. java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)
    7. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    8. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    9. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    10. java.lang.reflect.Method.invoke(Method.java:483)
    10 frames
  3. Py4J
    GatewayConnection.run
    1. py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:231)
    2. py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:379)
    3. py4j.Gateway.invoke(Gateway.java:259)
    4. py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:133)
    5. py4j.commands.CallCommand.execute(CallCommand.java:79)
    6. py4j.GatewayConnection.run(GatewayConnection.java:207)
    6 frames
  4. Java RT
    Thread.run
    1. java.lang.Thread.run(Thread.java:745)
    1 frame