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From "James Strachan" <>
Subject Re: Problem with JMSXGroupFirstForConsumer
Date Wed, 13 Jun 2007 18:46:56 GMT
On 6/13/07, Dris <> wrote:
> I am using message groups with 4.1.1 and NMS. I am finding that
> JMSXGroupFirstForConsumer is not being set reliably for the first message
> with a given groupId. I cannot as yet see any pattern in the failures. I
> have tried just setting the groupId to i.ToString() in a loop for example
> and after getting around 220 messages with JMSXGroupFirstForConsumer set, I
> then start to receive every tenth one without it set. I have also tried
> using GUIDs and the pattern of errors is understandably more random. I have
> some test code I can post, but I was wondering if anyone else had observed
> any similar behaviour. Messages do seem to be being delivered to consumers
> correctly however, it is just that the first message in each group isn't
> always flagged as such.

Maybe something's gotten broken.

It'd be great to write up the code you're running as a JUnit test case
and add it to the distro to ensure this feature keeps working.


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