How to create a Service Interface for JaxRpcPortProxyFactoryBean?

I am the client to an existing external WebService and I don't know how to generate or create the Service Interface that is required in the org.springframework.remoting.jaxrpc.JaxRpcPortProx yFactoryBean and org.springframework.remoting.jaxws.JaxWsPortProxyF actoryBean? I know that jaxws import tool will generate the service interface; but is there away to generate the service interface for JaxRpcPortProxyFactoryBean?

If I just wanted to do this manually, how would I go about doing it?

Thank you.

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