Soap over JMS is a very good idea, I think. But there need to be some work done on the productivity and connectivity, to be really usefull. I would not dare to say that there is no future for Soap over JMS. But I think in most cases I would need the reliability over a very long distance (like my The Hague/Munich example). If you do indeed have the same requirement (reliable messaging over a long distance) I would suggest you to take a look into the ebXML/ebMS standards. Oracle Integration B2B for example could help you with that.
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