diff --git a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/stats/impl/ClientCounterContext.java b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/stats/impl/ClientCounterContext.java
index cd785a0..be35555 100644
--- a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/stats/impl/ClientCounterContext.java
+++ b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/stats/impl/ClientCounterContext.java
@@ -115,6 +115,9 @@
     private void updateCounterMap(JSONObject jo) {
         for (String counterName : RESET_COUNTERS) {
             JSONArray jArray = (JSONArray) jo.get(counterName);
+            if(jArray==null){
+                continue; 
+            }
             Object[] values = jArray.toArray();
             long counterValue = 0;
             for (Object value : values) {