Robbie Gemmell created PROTON-833:
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Summary: transport can emit detach frames with an invalid channel
number after session end
Key: PROTON-833
URL: https://issues.apache.org/jira/browse/PROTON-833
Project: Qpid Proton
Issue Type: Bug
Components: proton-j
Affects Versions: 0.8
Reporter: Robbie Gemmell
The transport can emit detach frames with an invalid channel number if a local
link close(+detach?) call is performed (in response to a remote detach) after a
local session close is performed.
When a session is locally closed by a client with open links on it, if the
'broker' sends detach frames for any of those links then the application might
then do a local close on them in response. The client transport then emits
detach 'response' frames as a result of this, after the session end frame has
been sent. A side effect of calling close on the session is that the channel
number is unmapped when the end frame is sent, and the relevant variable set to
the value -1. When the transport sends the detaches outlined above it then uses
the -1 value, which is treated as channel 65535 when sent as the unsigned
channel number.
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