> Hi all,
> I would like to ask if it is possible to have
> acknowledgement mode in MDB set to Client_Ack,
> and if not how to ensure that if the MDB fails to
> process the message the JMS service provider will
> resend it?
No, it is not. Either you have AUTO or you use the transactions. See the manual.
> And is it possible to configure the MDB to receive
> messages from multiple topics and how to do it?
No it is not. Why would you need that? Rename the bean amd specify another destination.