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https://issues.apache.org/jira/browse/AVRO-1754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thiruvalluvan M. G. updated AVRO-1754:
--------------------------------------
Resolution: Fixed
Fix Version/s: 1.8.0
Status: Resolved (was: Patch Available)
> C++ ValiditingDecoder handles null incorrectly
> ----------------------------------------------
>
> Key: AVRO-1754
> URL: https://issues.apache.org/jira/browse/AVRO-1754
> Project: Avro
> Issue Type: Bug
> Components: c++
> Reporter: John McClean
> Assignee: John McClean
> Fix For: 1.8.0
>
> Attachments: AVRO-1754.patch
>
>
> When decoding null, the ValidatingDecoder does not call the underlying
> 'decodeNull' method. The result is that the next field decoded causes an
> exception.
> For example, if this json
> {quote}
> \{"a":null,"b":"bar"}
> {quote}
> is decoded with this schema
> {quote}
> \{
> "name": "foo",
> "type": "record",
> "fields": [
> \{ "name": "a", "type": ["null", "string"] },
> \{ "name": "b", "type": "string" }
> ]
> }
> {quote}
> it throws an exception with the message "Invalid operation. Expected: String
> got Null". This happens when 'b' is being decoded. I'll attach a patch.
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