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https://issues.apache.org/jira/browse/PROTON-543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14049856#comment-14049856
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ASF subversion and git services commented on PROTON-543:
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Commit 1607335 from [~gemmellr] in branch 'proton/trunk'
[ https://svn.apache.org/r1607335 ]
PROTON-543: document that Transport#sasl() must be called prior to any
processing if a sasl layer is desired. Throw ISE from sasl() if process() has
been called before the first sasl() invocation.
> Frame Parser error if input stream is read before SASL is initialized in the
> transport
> --------------------------------------------------------------------------------------
>
> Key: PROTON-543
> URL: https://issues.apache.org/jira/browse/PROTON-543
> Project: Qpid Proton
> Issue Type: Bug
> Components: proton-j
> Affects Versions: 0.5, 0.6
> Reporter: Rajith Attapattu
> Assignee: Robbie Gemmell
>
> If the input stream is read and passed into the transport, before the sasl()
> method of TransportImpl.java is called then the _inputProcessor defaults to
> FrameParser instead of being wrapped by the SASL frame parser.
> This causes a Frame Parsing error as it expects '0' as per the regular header
> but instead finds '3' which is the correct format if the process is the SASL
> frame parser.
> As per the discussion on @proton we decide to throw an exception if sasl is
> set after the input stream has been processed.
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