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https://issues.apache.org/jira/browse/AVRO-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14083313#comment-14083313
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Sean Busbey commented on AVRO-1544:
-----------------------------------
I think the patch is ready to apply, but am sadly not a committer.
> Union of enum and null can result in NPE on validate if null is not first
> -------------------------------------------------------------------------
>
> Key: AVRO-1544
> URL: https://issues.apache.org/jira/browse/AVRO-1544
> Project: Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.7.6
> Reporter: Matthew Hayes
> Attachments: AVRO-1544-v2.patch, AVRO-1544.patch
>
>
> The ENUM case in validate is missing a null check for datum:
> {code}
> case ENUM:
> return schema.getEnumSymbols().contains(datum.toString());
> {code}
> This leads to a surprising error where a NPE is thrown for a union of enum
> and null when the enum is first in the union. If null is first it works.
> The fix is a simple. I'm creating a patch that adds the fix and a unit test
> for this case.
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