Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/2612#discussion_r82591316
--- Diff:
flink-batch-connectors/flink-avro/src/main/java/org/apache/flink/api/java/io/AvroOutputFormat.java
---
@@ -36,6 +38,8 @@
private final Class<E> avroValueType;
private transient Schema userDefinedSchema = null;
+
+ private transient CodecFactory codecFactory = null;
--- End diff --
Flink uses Java Serialization to ship code from the client to the cluster.
`CodecFactory` does not implement `Serializable`. Therefore, the `codecFactory`
field must be declared as `transient`. However, the `writeObject` and
`readObject` methods must be adapted to manually serialize / deserialize the
information. Otherwise, the `CodecFactory` is lost when the object is
deserialized at the client.
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