It looks like the ws call is getting into the component and that is working fine. The error is when we are trying to convert the dataobject returned from the calculator sample to an axiom object before returning it over the wire. I haven't seen this behaviour before.
Before starting the axis http server you could set the environment variabl TUSCANY_SCACPP_LOGGING=4 to get some trace. I'll try and take a look at this tomorrow if I can free up some time. Cheers,
