如何在Metro / JavaEE自动生成的WSDL中自定义名称空间前缀？

I'm using Java 6 + JavaEE + Tomcat 6 + Metro for SOAP web services. In the response, the namespace prefixes are ns2, ns3, ns4, and so on. I'd like to be able to instruct the web services stack to use custom names instead.I'm using Java 6 + JavaEE + Tomcat 6 + Metro fo