WSDL generation fails from WSD

Hi

I get the below error when I try to generate the WSDL from WSD.

wm.server.ws:wsd2wsdl java.lang.reflect.InvocationTargetException: com.wm.g11n.text.NCNameCoder.validateLocalPart(Ljava/lang/String;)

We are using the below versions :
webM - 7.1.2
Java - 1.5
OS - Sun solaris Sparc

Patches -

IS_7-1-2_FlatFile_Fix3
IS_7-1-2_WebSvcsXML_Fix10
IS_7-1-2_Core_Fix12
IS_7-1-2_PkgMgmt_Fix1
IS_7-1-2_XA_Fix2
IS_7-1-2_SrvPrtcl_Fix10
IS_7-1-2_Flow_Fix5
IS_7-1-2_PubSub_Fix3

Pls let me know, if any one has any recommendation.

Thanks,
Murali