ONOS-7077 Openflow 1.5 OXS and stat trigger support

Change-Id: I006bcd3d8eac451a780c7e5c69a12298ead14281
diff --git a/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java b/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java
index 3d0dacd..bcacb29 100644
--- a/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java
+++ b/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java
@@ -339,8 +339,9 @@
             meter.setLife(stat.getDurationSec());
             meter.setProcessedBytes(stat.getByteInCount().getValue());
             meter.setProcessedPackets(stat.getPacketInCount().getValue());
-            meter.setReferenceCount(stat.getFlowCount());
-
+            if (stat.getVersion().getWireVersion() < OFVersion.OF_15.getWireVersion()) {
+                meter.setReferenceCount(stat.getFlowCount());
+            }
             // marks the meter as seen on the dataplane
             pendingOperations.invalidate(stat.getMeterId());
             return meter;