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From nkiesel <>
Subject Re: Unknown data type: 73 exception in ActiveMQConnection.syncSendPacket
Date Tue, 03 Jul 2007 17:20:48 GMT

James.Strachan wrote:
> Sounds like you are communicating with an old broker; or using the
> incorrect port (e.g. talking to the stomp port or something). Maybe
> turn off the multicast discovery and double check your client jars
> match your broker jars
> On 7/3/07, nkiesel <> wrote:
>> Hi,
>> I'm getting the following exception when trying to send a simple
>> serialized
>> object through a persistent queue.  This is with AQ 4.1.1. Any idea what
>> I'm
>> doing wrong here?

Hmm, this is an internal broker (running within a jboss-4.0.4 app, but not
using any jboss integration).  I'm using the jars from the lib directory
(e.g. activemq-core-4.1.1.jar) instead of the combo jar
apache-activemq-4.1.1.jar. Would that make a difference?

Background for all this is still trying to get my simple network of brokers
working (I posted another plea for help some days back).  I basically have
two java servers I need to keep in sync, so I added an embedded broker to
each of them, and use a network-connector in the primary to connect to the
secondary. Then I added a layer into my server apps so that every persistent
change on the primary gets written locally and replicated to the secondary
as well.

This currently does not work at all (was working with a beta version of
4.0).  So I disabled the network connector to just test my "writing into the
queue" part, and now I get this error.

I will try the combo jar and see if that makes a difference.

Thanks for your reply.

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