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https://issues.apache.org/jira/browse/PROTON-966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14647483#comment-14647483
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ASF subversion and git services commented on PROTON-966:
--------------------------------------------------------

Commit 77fa91e9cdbc640ffd67d331d3553d3e5060865e in qpid-proton's branch 
refs/heads/master from Robert Gemmell
[ https://git-wip-us.apache.org/repos/asf?p=qpid-proton.git;h=77fa91e ]

PROTON-966, PROTON-967: add EmptyFrame body and pass to frame handler like any 
other. Utilise this to make empty frame logging/tracing actually say Empty 
Frame instead of just null.


> [proton-j] empty frames are logged/traced when sent but not when received
> -------------------------------------------------------------------------
>
>                 Key: PROTON-966
>                 URL: https://issues.apache.org/jira/browse/PROTON-966
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-j
>    Affects Versions: 0.9.1
>            Reporter: Robbie Gemmell
>            Assignee: Robbie Gemmell
>             Fix For: 0.10
>
>
> Proton-j logs/traces empty frames when sent but does not when they are 
> received. This makes ascertaining idle timeout behaviour (which can use empty 
> frames) harder to debug.
> The reason for this disparity is that the empty frames are swallowed by the 
> FrameParser rather than a null frame body being passed to its FrameHandler. 
> To resolve this, an EmptyFrame type can be introduced that can be processed 
> as a NOOP and logged/traced in the same fashion as other frames.



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