Feedback from review:

+ check no content in HEAD response

jetty-webapp/src/test/java/org/eclipse/jetty/webapp/HugeResourceTest.java

@@ -256,6 +256,11 @@ public class HugeResourceTest
         request.send(responseListener);
         Response response = responseListener.get(5, TimeUnit.SECONDS);
 
+        try (InputStream in = responseListener.getInputStream())
+        {
+            assertThat(in.read(), is(-1));
+        }
+
         assertThat("HTTP Response Code", response.getStatus(), is(200));
         // dumpResponse(response);