[ONOS-6470] Method names are confusing, needs to be changed

Change-Id: I620cf5225b34f22dd176a65f211886d386f62872
diff --git a/providers/openflow/device/src/main/java/org/onosproject/provider/of/device/impl/PortStatsCollector.java b/providers/openflow/device/src/main/java/org/onosproject/provider/of/device/impl/PortStatsCollector.java
index 15cab14..18b939f 100644
--- a/providers/openflow/device/src/main/java/org/onosproject/provider/of/device/impl/PortStatsCollector.java
+++ b/providers/openflow/device/src/main/java/org/onosproject/provider/of/device/impl/PortStatsCollector.java
@@ -62,7 +62,7 @@
 
         @Override
         public void run() {
-            sendPortStatistic();
+            sendPortStatisticRequest();
         }
     }
 
@@ -101,7 +101,7 @@
     /**
      * Sends port statistic request to switch.
      */
-    private void sendPortStatistic() {
+    private void sendPortStatisticRequest() {
         if (sw.getRole() != RoleState.MASTER) {
             return;
         }