Make sure the state of the response consumer gets carried over to its…

… respective future even if the HTTP exchange has been cancelled prematurely

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpasyncclient/trunk@1156184 13f79535-47bb-0310-9956-ffa450edef68

httpasyncclient/src/main/java/org/apache/http/impl/nio/client/DefaultAsyncRequestDirector.java

@@ -422,7 +422,16 @@ public synchronized void cancel() {
         this.log.debug("HTTP exchange cancelled");
         try {
             this.responseConsumer.cancel();
-            this.resultCallback.cancelled(this);
+
+            T result = this.responseConsumer.getResult();
+            Exception ex = this.responseConsumer.getException();
+            if (ex != null) {
+                this.resultCallback.failed(ex, this);
+            } else if (result != null) {
+                this.resultCallback.completed(result, this);
+            } else {
+                this.resultCallback.cancelled(this);
+            }
         } catch (RuntimeException runex) {
             this.resultCallback.failed(runex, this);
             throw runex;