--- a/src/jdk.incubator.httpclient/share/classes/jdk/incubator/http/ResponseSubscribers.java	Mon Feb 05 15:51:09 2018 +0000
+++ b/src/jdk.incubator.httpclient/share/classes/jdk/incubator/http/ResponseSubscribers.java	Mon Feb 05 17:18:26 2018 +0000
@@ -207,7 +207,7 @@
             // and won't be used anywhere except this place.
             // So it's free simply to store them for further processing.
             assert Utils.hasRemaining(items);
-            Utils.accumulateBuffers(received, items);
+            received.addAll(items);
         }
 
         @Override