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https://issues.apache.org/jira/browse/AVRO-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13979733#comment-13979733
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GregWhitsitt commented on AVRO-1457:
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+1

> ReadOnly ByteBuffer serialization state changes after writing
> -------------------------------------------------------------
>
>                 Key: AVRO-1457
>                 URL: https://issues.apache.org/jira/browse/AVRO-1457
>             Project: Avro
>          Issue Type: Bug
>    Affects Versions: 1.7.4
>            Reporter: GregWhitsitt
>            Assignee: Rob Turner
>         Attachments: AVRO-1457.patch, ByteBufferTest.java, test.avdl
>
>
> Using the GenericDatumWriter specifically, writing out an avro containing a 
> read-only ByteBuffer changes state of the original object, making it unusable 
> after the initial write.  Potentially either the ByteBuffer needs to be 
> copied prior to writing if read-only, or the offset needs to be reset after 
> writing.  
> I'll attach a simple test which shows the issue  



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