[SoapUI] A class/interface with the same name "xxxx" is already in use. Use a class customization to resolve this conflict.

Problem
When I try to generate SOAP web service client code via SoapUI, I get naming conflict exception:

[ERROR] A class/interface with the same name "xxxx" is already in use. Use a class customization to resolve this conflict. 

How-To
We can add customized argument in SoapUI to automatically resolve naming conflicts without requiring the use of binding customizations.

Reference
[1] http://cxf.apache.org/docs/wsdl-to-java.html