[jira] [Updated] (AVRO-1457) ReadOnly ByteBuffer serialization state changes after writing

["Martin Kleppmann (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AVRO-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Kleppmann updated AVRO-1457:
-----------------------------------

    Fix Version/s: 1.7.7
           Status: Patch Available  (was: Open)

I don't understand the intended semantics well enough to review this patch, but it sounds like something to include in 1.7.7. Marking as "patch available".

> 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
>             Fix For: 1.7.7
>
>         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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