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https://issues.apache.org/jira/browse/AVRO-1051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13239877#comment-13239877
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Hamed Asghari commented on AVRO-1051:
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Attached patch to fix this issue.
> SpecificData returns incorrect Class type for UNION in schema
> -------------------------------------------------------------
>
> Key: AVRO-1051
> URL: https://issues.apache.org/jira/browse/AVRO-1051
> Project: Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.6.3
> Reporter: Hamed Asghari
> Attachments: SpecificData.java.patch
>
>
> Java reflection fails to find the method invoked by the client due to
> incorrect parameter types.
> This issue arises when a message request field has a UNION type where one
> type is "null" and the other type is a primitive like "int". In this case,
> the class type returned by the {{getClass(Schema)}} method in
> {{SpecificData}} is {{int}} instead of {{java.lang.Integer}} which results in
> a {{NoSuchMethodException}}.
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