how to check the path in web service

I m using cxf webservices.I have a service path @Path'/summary/abc/{xyz}/name/{login}'.

I want to generate some custom error message when someone give wrong url like

'/summary/a开发者_StackOverflowb/{xyz}/na/{login}/'

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This email has the recipe: http://osdir.com/ml/users-cxf-apache/2009-06/msg00528.html.