Samuel Souza created SPARK-36627:
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Summary: Tasks with Java proxy objects fail to desrialize
Key: SPARK-36627
URL: https://issues.apache.org/jira/browse/SPARK-36627
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 3.0.3
Reporter: Samuel Souza
In JavaSerializer.JavaDeserializationStream we override resolveClass of
ObjectInputStream to use the threads' contextClassLoader. However, we do not
override resolveProxyClass, which is used when deserializing Java proxy
objects, which makes spark use the wrong classloader when deserializing
objects, which causes the job to fail with the following exception:
Caused by: org.apache.spark.SparkException: Job aborted due to stage failure:
Task 0 in stage 1.0 failed 4 times, most recent failure: Lost task 0.3 in stage
1.0 (TID 4, <host>, executor 1): java.lang.ClassNotFoundException: <class>
at
java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at
java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:398)
at
java.base/java.io.ObjectInputStream.resolveProxyClass(ObjectInputStream.java:829)
at
java.base/java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1917)
...
at
org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:76)
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