[jira] [Commented] (AMQ-5886) AMQ accepts illegal MQTT protocol level (5, only 3 and 4 are defined)

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMQ-5886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15178217#comment-15178217 ] 

ASF subversion and git services commented on AMQ-5886:
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Commit f3544f248ffdce8d4c4bb80698b0d69a7e7492d9 in activemq's branch refs/heads/master from [~tabish121]
[ https://git-wip-us.apache.org/repos/asf?p=activemq.git;h=f3544f2 ]

https://issues.apache.org/jira/browse/AMQ-5886

Ensure we reject protocol version that we don't currently support.

> AMQ accepts illegal MQTT protocol level (5, only 3 and 4 are defined)
> ---------------------------------------------------------------------
>
>                 Key: AMQ-5886
>                 URL: https://issues.apache.org/jira/browse/AMQ-5886
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.11.1
>         Environment: OSX 10.10
> https://github.com/ckrey/MQTT-Client-Framework testcases
>            Reporter: Christoph Krey
>            Priority: Minor
>
> MQTT spec says:
> [MQTT-3.1.2-2]
> The Server MUST respond to the CONNECT Packet with a CONNACK return code 0x01 (unacceptable protocol level) and then disconnect the Client if the Protocol Level is not supported by the Server.
> [MQTT-3.2.2-5]
> If a server sends a CONNACK packet containing a non-zero return code it MUST then close the Network Connection.



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