Rajith Attapattu wrote:
Aidan,
I came across this when I wrote a simple test to figure out another issue.
Basically I did the following.
create connection
start the connection
create a session
create a destination, using that create a MC and a MP.
set a MessageListener to the MC.
send messages using MP.
When the session tries to deliever the messages it throws an
IllegalStateException as the dispatcher thread is null.
Let me create a JIRA and then attach the test case and the stack trace.
Strictly speaking I believe the JMS api-doc says that the behavior in
the above scenario is undefined. From the api-doc:
"The effect of calling MessageConsumer.setMessageListener while
messages are being consumed by an existing listener or the consumer is
being used to consume messages synchronously is undefined."
I think this means that throwing an IllegalStateException is valid,
however that doesn't mean we can't do something a bit more graceful if
we want to.
--Rafael
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