Tom, I noticed a to-do item with your name against it: "We do not emit SOAPElement arguments per JAX-RPC yet."
I'm currently plumbing in some of the javax.xml.soap interfaces into the org.apache.axis.message package which includes making MessageElement implement SOAPElement. What else would you to-do item require? (Also, shouldn't it refer to JAXM rather than JAX-RPC??) BTW I'm out the rest of today, back Wednesday. Glyn