group stats improvement
diff --git a/src/main/java/net/floodlightcontroller/core/web/OFGroupStatsEntryMod.java b/src/main/java/net/floodlightcontroller/core/web/OFGroupStatsEntryMod.java
new file mode 100644
index 0000000..6ddb430
--- /dev/null
+++ b/src/main/java/net/floodlightcontroller/core/web/OFGroupStatsEntryMod.java
@@ -0,0 +1,21 @@
+package net.floodlightcontroller.core.web;
+import org.codehaus.jackson.map.annotate.JsonSerialize;
+
+import org.projectfloodlight.openflow.protocol.OFGroupStatsEntry;
+import net.floodlightcontroller.core.web.serializers.OFGroupStatsEntryModSerializer;
+
+@JsonSerialize(using = OFGroupStatsEntryModSerializer.class)
+public class OFGroupStatsEntryMod {
+    private OFGroupStatsEntry GroupStatsEntry = null;
+
+    public  OFGroupStatsEntryMod() {
+    }
+
+    public  OFGroupStatsEntryMod(OFGroupStatsEntry GroupStatsEntry) {
+        this.GroupStatsEntry = GroupStatsEntry;
+    }
+
+    public OFGroupStatsEntry getGroupStatsEntry() {
+        return this.GroupStatsEntry;
+    }
+}