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https://issues.apache.org/jira/browse/FLINK-7997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephan Ewen closed FLINK-7997.
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> Avro should be always in the user code
> --------------------------------------
>
> Key: FLINK-7997
> URL: https://issues.apache.org/jira/browse/FLINK-7997
> Project: Flink
> Issue Type: Improvement
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 1.4.0
>
>
> Having Avro in the user code space makes it possible for users to use
> different Avro versions that the ones pulled in by an overloaded classpath
> (for example when having Hadoop in the classpath)
> This is possible through the new child-first classloading in Flink 1.4.
> Also, this should fix the problem of "X cannot be cast to X", because Avro
> classes will be scoped to the user code class loader, and the Avro schema
> cache will not be JVM-wide-
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