Filter postFilter = filters[1];
LOGGER.fine("Supported filter sent to web service backend: " + supportedFilter);
LOGGER.fine("Unsupported filter to be processed in GeoServer: " + postFilter);
callQuery.setFilter(supportedFilter);
WSResponse response = wsProtocol.issueGetFeature(callQuery);
Document doc = getXmlResponse(response);
List<Integer> validFeatureIndex = determineValidFeatures(postFilter, doc, query
.getMaxFeatures());
return new XmlResponse(doc, validFeatureIndex);