Robbie Gemmell created DISPATCH-192:
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Summary: a null target is used in attach response, without
subsequent detach, following attempted use of anonymous relay node
Key: DISPATCH-192
URL: https://issues.apache.org/jira/browse/DISPATCH-192
Project: Qpid Dispatch
Issue Type: Task
Affects Versions: 0.5
Reporter: Robbie Gemmell
As Dispatch advertises the ANONYMOUS-RELAY capability, signalling support for
the anonymous relay node, when creating an anonymous JMS MessageProducer (using
a null Destination) against it the JMS client sends a link attach with a
non-null target representing a null address (i.e the anonymous relay node).
Dispatch currently responds to this with an attach containing a null target
field. The AMQP spec indicates that a null target is used in the attach
response when the link is being refused, with a Detach frame then following to
close the link and potentially give a cause. Dispatch doesnt send a Detach in
this case and its unclear that it actually intends to refuse the link in this
case (since it advertises ANONYMOUS-RELAY), but clients would have to assume it
did (and may get themselves into a state when the detach doesnt follow).
In this case I would expect the attach response to contain a non-null target
with null address, but failing that a Detach frame should be sent after using
the null target in the attach response.
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