Axis2 dependencies for a simple soap “rpc encoding ” call

we need to access a soap webservice with "RPC Encoding" style using the
Axis2 library.

I've created the stubs with the maven plugin, as in this example:
http://stackoverflow.com/questions/8518301/error-when-using-xmlbeans-generated-classes

However, when I call the webservice, it complains about missing
dependencies. I can add the missing dependencies using a trial and error
approach (every time that I get a ClassNotFoundException, I find out the
jar and I add the dependency in the pom file), but that's not a very good
idea.

I looked at the Axis2 documentation, but I didn't find information about
the dependencies needed for a simple soap call.
How can I know what are the minimum set of dependencies that I need in my
case?


David