resolving findbug

Author: virajjasani

hbase-server/src/main/java/org/apache/hadoop/hbase/master/RegionsRecoveryChore.java

@@ -100,8 +100,10 @@ protected void chore() {
         final Map<TableName, List<HRegionInfo>> tableToReopenRegionsMap =
           getTableToRegionsByRefCount(serverMetricsMap);
         if (MapUtils.isNotEmpty(tableToReopenRegionsMap)) {
-          for (TableName tableName : tableToReopenRegionsMap.keySet()) {
-            List<HRegionInfo> hRegionInfos = tableToReopenRegionsMap.get(tableName);
+          for (Map.Entry<TableName, List<HRegionInfo>> tableRegionEntry :
+              tableToReopenRegionsMap.entrySet()) {
+            TableName tableName = tableRegionEntry.getKey();
+            List<HRegionInfo> hRegionInfos = tableRegionEntry.getValue();
             try {
               LOG.warn("Reopening regions due to high storeFileRefCount. " +
                 "TableName: {} , noOfRegions: {}", tableName, hRegionInfos.size());