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https://issues.apache.org/jira/browse/FLINK-12501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16839191#comment-16839191
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Tzu-Li (Gordon) Tai commented on FLINK-12501:
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+1 to fix this.
This was also reported elsewhere by this blog post:
https://medium.com/wbaa/making-sense-of-apache-flink-state-migration-with-scala-and-avro-69091c232646
> AvroTypeSerializer does not work with types generated by avrohugger
> -------------------------------------------------------------------
>
> Key: FLINK-12501
> URL: https://issues.apache.org/jira/browse/FLINK-12501
> Project: Flink
> Issue Type: Bug
> Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
> Reporter: Aljoscha Krettek
> Priority: Major
>
> The main problem is that the code in {{SpecificData.createSchema()}} tries to
> reflectively read the {{SCHEMA$}} field, that is normally there in Avro
> generated classes. However, avrohugger generates this field in a companion
> object, which the reflective Java code will therefore not find.
> This is also described in these ML threads:
> *
> [https://lists.apache.org/thread.html/5db58c7d15e4e9aaa515f935be3b342fe036e97d32e1fb0f0d1797ee@%3Cuser.flink.apache.org%3E]
> *
> [https://lists.apache.org/thread.html/cf1c5b8fa7f095739438807de9f2497e04ffe55237c5dea83355112d@%3Cuser.flink.apache.org%3E]
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