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From "Justin Ross (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PROTON-1505) Message header defaults only work if no header present
Date Tue, 05 Dec 2017 14:32:00 GMT

     [ https://issues.apache.org/jira/browse/PROTON-1505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Justin Ross updated PROTON-1505:
--------------------------------
    Fix Version/s:     (was: proton-c-0.19.0)
                   proton-c-0.20.0

> Message header defaults only work if no header present
> ------------------------------------------------------
>
>                 Key: PROTON-1505
>                 URL: https://issues.apache.org/jira/browse/PROTON-1505
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-c
>            Reporter: Kim van der Riet
>            Assignee: Andrew Stitcher
>              Labels: codec
>             Fix For: proton-c-0.20.0
>
>
> An error in the qpid-interop-tests JMS headers test showed that where there is no message
priority on the wire, the C++ and Python client APIs do not return the default value as mandated
by the AMQP spec. In particular, the priority is returned with a value of 0 rather than the
default value of 4.
> This raises two issues:
> 1. Setting the default value (in particularly for priority, where a priority system may
be adopted that is not default, and the missing value may need to have a value other than
4). 
> 2. (C++) Gaining access to the transport headers so that there is an ability to distinguish
between the default and the value being actually present on the wire.



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