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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-5997) MQTT legacy client support
Date Mon, 05 Oct 2015 10:56:26 GMT

    [ https://issues.apache.org/jira/browse/AMQ-5997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14943221#comment-14943221
] 

ASF subversion and git services commented on AMQ-5997:
------------------------------------------------------

Commit b83c38b04c3e4330e6d5f57e4c5d7f3fd62942f0 in activemq's branch refs/heads/master from
[~dejanb]
[ https://git-wip-us.apache.org/repos/asf?p=activemq.git;h=b83c38b ]

https://issues.apache.org/jira/browse/AMQ-5997 - support legacy clients


> MQTT legacy client support
> --------------------------
>
>                 Key: AMQ-5997
>                 URL: https://issues.apache.org/jira/browse/AMQ-5997
>             Project: ActiveMQ
>          Issue Type: Improvement
>    Affects Versions: 5.12.0
>            Reporter: Dejan Bosanac
>            Assignee: Dejan Bosanac
>             Fix For: 5.13.0
>
>
> MQTT 3.1.1 spec defines that UNSUBSCRIBE packet needs to define AT_LEAST_ONCE (01) for
fixed header QoS bits. But older clients might set those to some different value, like AT_MOST_ONCE.
At the moment, the mqtt-client lib will try to have this case differently and we'll get 
> {code}ProtocolException: Invalid message encoding{code}
> error.
> The solution is to make mqtt client parse these other values regularly and introduce
the necessary checks for 3.1.1 spec version in the broker.



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