Samuel Souza created SPARK-36627: ------------------------------------ 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) -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org