Fix for the index displayed in event-history.

src/main/java/net/floodlightcontroller/core/web/serializers/BaseInfoJSONSerializer.java

@@ -19,7 +19,6 @@ package net.floodlightcontroller.core.web.serializers;
 import java.io.IOException;
 import java.util.Date;
 
-import net.floodlightcontroller.util.EventHistory;
 import net.floodlightcontroller.util.EventHistory.BaseInfo;
 
 import org.codehaus.jackson.JsonGenerator;

src/main/java/net/floodlightcontroller/util/EventHistory.java

@@ -4,7 +4,6 @@
 package net.floodlightcontroller.util;
 
 import java.util.ArrayList;
-import java.util.Date;
 
 /**
  * @author subrata
@@ -121,6 +120,7 @@ public class EventHistory<T> {
         int origIdx = evIdx;
         for (int idx = 0; idx < topSz; idx++) {
             Event evH         = eventHist.events.get(--origIdx);
+            evH.base_info.idx = idx;
             events.add(idx, evH);
         }