[jira] [Updated] (AVRO-864) NoSuchFieldException when emitting record with array of union of records in mapred

["Isabel Drost (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AVRO-864?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Isabel Drost updated AVRO-864:
------------------------------

    Attachment: AVRO-864.diff

Patch illustrating the issue - contains a unit test to reproduce the problem as well as two small changes that so far have fixed the problem for me.

Big Thanks+kiss to Thilo Fromm for helping me debug this.

> NoSuchFieldException when emitting record with array of union of records in mapred
> ----------------------------------------------------------------------------------
>
>                 Key: AVRO-864
>                 URL: https://issues.apache.org/jira/browse/AVRO-864
>             Project: Avro
>          Issue Type: Bug
>            Reporter: Isabel Drost
>         Attachments: AVRO-864.diff
>
>
> I tried to convert data records currently in a custom format into avro records via a map-only job. To allow for optional record fields I followed the workaround sketched by Doug in AVRO-519 using the generic API.
> When emitting the resulting records a "NoSuchFieldException" is thrown when trying to resolve the union types: Only the methods declared in ReflectData seem to be called, the implementation in GenericData is skipped.

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