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https://issues.apache.org/jira/browse/AVRO-1954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16717790#comment-16717790
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ASF subversion and git services commented on AVRO-1954:
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Commit 10792f777f5a31f8c1e5d9a6f6c6d4ba2727ab58 in avro's branch
refs/heads/branch-1.8 from [~nkollar]
[ https://gitbox.apache.org/repos/asf?p=avro.git;h=10792f7 ]
AVRO-1954 - Schema.Field.defaultVal() generates: Unknown datum type
org.apache.avro.JsonProperties$Null. Contributed by Nandor Kollar
(cherry picked from commit d9338a4cf008b445ea3efbe2523288d07162ec71)
> Schema.Field.defaultVal() generates: Unknown datum type
> org.apache.avro.JsonProperties$Null
> -------------------------------------------------------------------------------------------
>
> Key: AVRO-1954
> URL: https://issues.apache.org/jira/browse/AVRO-1954
> Project: Apache Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.8.1, 1.9.0
> Reporter: rui miranda
> Assignee: Nandor Kollar
> Priority: Minor
> Fix For: 1.9.0
>
> Attachments: unitTestDefaultNull.patch
>
>
> I was creating GenericRecords and populating some fields -- which i could not
> find the content on some json files -- with the Schema.Field.defaultVal().
> It seems if the schema has explicitly set the default value to be null, the
> records generated this way can't be written. In this case, if default value
> is null in the schema, an instance of
> org.apache.avro.JsonProperties.NULL_VALUE is returned by
> Schema.Field.defaultVal().
> I created an unit test which replicates the bug. I was thinking modify the
> class org.apache.avro.generic.GenericData to evaluate
> org.apache.avro.JsonProperties.NULL_VALUE as null. Is this the way to go? or
> org.apache.avro.JsonProperties.NULL_VALUE is intend for other purposes?
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