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https://issues.apache.org/jira/browse/PROTON-776?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Justin Ross updated PROTON-776:
-------------------------------
    Fix Version/s: Future

> proton-j: Message.decode doesn't validate all data types?
> ---------------------------------------------------------
>
>                 Key: PROTON-776
>                 URL: https://issues.apache.org/jira/browse/PROTON-776
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-j
>    Affects Versions: 0.8
>            Reporter: Dominic Evans
>              Labels: codec
>             Fix For: Future
>
>
> PROTON-616 attempted to enfore that message annotation keys were of the 
> Symbol type. However, it seems to be possible to send a map with strings keys 
> for the message annotations section (e.g., via the ruby client) and 
> message.decode will accept this.
> It is only when you try to use the MessageAnnotations map that you get a 
> `java.lang.ClassCastException: java.lang.String incompatible with 
> org.apache.qpid.proton.amqp.Symbol` exception because the underlying map 
> isn't compatible with what the generics suggest.
> Isn't this something that we should catch at decode time?



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