Configuring a WSDL w/Vaadin and Eclipse

I wrote a java web service (wsdl file) using Netbeans. I am new to the Eclipse environment, which I am trying to use to build programs with Vaadin. Netbeans handles the inclusion of a web service mostly ‘behind the scenes’ and I don’t know exactly what is required to configure a program to use one.

Can someone point me at a sample program or a small example of how to configure a program to include an external web service? I don’t think this is a Vaadin problem particularly, but I’d appreciate any help you can give me…

Are there any 'gotcha’s to using a web service within a Vaadin program?