addendum for branch-2

Author: ndimiduk

hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java

@@ -3153,16 +3153,15 @@ protected Void rpcCall() throws Exception {
 
   @Override
   public QuotaRetriever getQuotaRetriever(final QuotaFilter filter) throws IOException {
-    return QuotaRetriever.open(conf, filter);
+    return new QuotaRetriever(connection, filter);
   }
 
   @Override
   public List<QuotaSettings> getQuota(QuotaFilter filter) throws IOException {
     List<QuotaSettings> quotas = new ArrayList<>();
-    try (QuotaRetriever retriever = QuotaRetriever.open(conf, filter)) {
-      Iterator<QuotaSettings> iterator = retriever.iterator();
-      while (iterator.hasNext()) {
-        quotas.add(iterator.next());
+    try (QuotaRetriever retriever = new QuotaRetriever(connection, filter)) {
+      for (QuotaSettings quotaSettings : retriever) {
+        quotas.add(quotaSettings);
       }
     }
     return quotas;