Index: grails-app/services/com/lemans/ds/solr/SolrQueryService.groovy
===================================================================
diff -u -r9a653acc65d6d2cb2ee1d988eecc4de1f71187a7 -rd8eac959a455a3721c05140af8bfa253e1326569
--- grails-app/services/com/lemans/ds/solr/SolrQueryService.groovy	(.../SolrQueryService.groovy)	(revision 9a653acc65d6d2cb2ee1d988eecc4de1f71187a7)
+++ grails-app/services/com/lemans/ds/solr/SolrQueryService.groovy	(.../SolrQueryService.groovy)	(revision d8eac959a455a3721c05140af8bfa253e1326569)
@@ -692,22 +692,20 @@
         SimpleOrderedMap uniqueVals =  facets ? facets.get('uniqueVals') : [:]
         SimpleOrderedMap missing =  uniqueVals?.get('missing')
         List<SimpleOrderedMap> buckets =  uniqueVals?.get('buckets')
-
         List values = populateCardinalityValuesForDate(buckets, missing, payload)
-        println values
-        Optional<Map<String, Object>> optionalResult = values.stream()
-                .max{ obj1, obj2 ->
-            if (obj1.date == null && obj2.date == null) {
+        Optional<Map<String, Object>> optionalResult = values?.stream()
+                ?.max{ obj1, obj2 ->
+            if (obj1?.date == null && obj2?.date == null) {
                 return 0
-            } else if (obj1.date == null) {
+            } else if (obj1?.date == null) {
                 return 1
-            } else if (obj2.date == null) {
+            } else if (obj2?.date == null) {
                 return -1
             } else {
-                return obj1.date.compareTo(obj2.date)
+                return obj1?.date.compareTo(obj2?.date)
             }
-        }.orElse(null)
-        Date totalDate = optionalResult.isPresent() ? optionalResult.get()['date'] : null
+        }?.orElse(null)
+        Date totalDate = optionalResult?.isPresent() ? optionalResult?.get()['date'] : null
         [type: payload.queueType.name(), displayName: payload.queueType.value, drillDowns: values ?: [], date: totalDate]
     }