This class needs to be defined in a spring context like:
<bean id="getMapKvpReader" class="org.geoserver.ows.adapters.KvpRequestReaderAdapter">
<!-- first argument is the request class -->
<constructor-arg index="0" value="org.vfny.geoserver.wms.requests.GetMapRequest" />
<!-- second argument is the old style kvp reader class -->
<constructor-arg index="1" value="org.vfny.geoserver.wms.requests.GetMapKvpReader" />
<!-- third argument is the old style service -->
<constructor-arg index="2" ref="wmsService" />
<bean>
author: Justin Deoliveira, The Open Planning Project, jdeolive@openplans.org