If query parameters are specified both in the URL and in the definition of a $PATH$-type resource in services.properties, the query string contains the aggregate of the two sets of query parameters.
Suppose services.properties contains these entries:
dinnerMenu.resource=/servlet/DinnerMenuServlet?param1=1¶m2=2 dinnerMenu.type = $PATH$
and the URL to access this service is:
/workspace/WebClient/ext/dinnerMenu?param3=3¶m4=4
The query string contains ?param1=1¶m2=2¶m3=3¶m4=4