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https://issues.apache.org/jira/browse/FLINK-3088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann closed FLINK-3088.
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Resolution: Fixed
Fixed via 20ebad048d3b4621a6e801a4d24a15d4468f2ba6
> WritableSerializer cannot copy writable object
> ----------------------------------------------
>
> Key: FLINK-3088
> URL: https://issues.apache.org/jira/browse/FLINK-3088
> Project: Flink
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.0.0, 0.10.1
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
>
> The {{WritableSerializer}}, {{ValueSerializer}}, {{AvroSerializer}},
> {{WritableComparator}} and {{ValueComparator}} use plain {{Kryo}} instances
> to copy the objects. In cases where {{Kryo}} fails to copy the object, e.g.
> missing no-arg constructor, the serializer and comparator instances fail even
> though the objects are serializable.
> As a fallback strategy I propose to copy the objects by serializing and
> deserializing them.
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