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

["Christoph Krey (JIRA)" <ji...@apache.org>]

Christoph Krey created AMQ-5886:
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             Summary: 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
          Components: Apollo
    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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