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Posted to issues@spark.apache.org by "Kohki Nishio (JIRA)" <ji...@apache.org> on 2017/02/21 07:04:44 UTC

[jira] [Created] (SPARK-19675) ExecutorClassLoader loads classes from SystemClassLoader

Kohki Nishio created SPARK-19675:
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             Summary: ExecutorClassLoader loads classes from SystemClassLoader
                 Key: SPARK-19675
                 URL: https://issues.apache.org/jira/browse/SPARK-19675
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 2.1.0, 2.2.0
         Environment: sbt / Play Framework
            Reporter: Kohki Nishio
            Priority: Minor


Spark Executor loads classes from SystemClassLoader which contains sbt-launch.jar and it contains Scala2.10 binary, however Spark itself is built on Scala2.11, thus it's throwing InvalidClassException

java.io.InvalidClassException: scala.Option; local class incompatible: stream classdesc serialVersionUID = -114498752079829388, local class serialVersionUID = 5081326844987135632
	at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:616)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1630)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1521)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1630)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1521)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1781)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2018)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1942)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1808)

ExecutorClassLoader's desired class loder (parentLoader) actually contains the correct path (scala-library-2.11.8.jar) but it is not being used.



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