I admit i know nothing about jetty, but in tomcat, the way you put it, you need to use this URL:
http://localhost:8090/prime-service-webapp/prime-service-webapp/AlertService?wsdl
Have a try with that. The reason is tomcat assigns the war name as context root by default, and you have instructed your cxf servlet to listen to
<url-pattern>/prime-service-webapp/*</url-pattern>
which means another level under context root (even if it is the same)