Issue #989 - InputStreamResponseListener.get() throws with HTTP/2 following redirect.

Added test case, but it passes cleanly.

tests/test-http-client-transport/src/test/java/org/eclipse/jetty/http/client/HttpClientStreamTest.java

@@ -1163,4 +1163,32 @@ public class HttpClientStreamTest extends AbstractTest
         Response response = listener.get(5, TimeUnit.SECONDS);
         Assert.assertEquals(200, response.getStatus());
     }
+
+    @Test
+    public void testInputStreamResponseListenerWithRedirect() throws Exception
+    {
+        start(new AbstractHandler()
+        {
+            @Override
+            public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
+            {
+                baseRequest.setHandled(true);
+                if (target.startsWith("/303"))
+                    response.sendRedirect("/200");
+            }
+        });
+
+        InputStreamResponseListener listener = new InputStreamResponseListener();
+        client.newRequest("localhost", connector.getLocalPort())
+                .scheme(getScheme())
+                .path("/303")
+                .followRedirects(true)
+                .send(listener);
+
+        Response response = listener.get(5, TimeUnit.SECONDS);
+        Assert.assertEquals(HttpStatus.OK_200, response.getStatus());
+
+        Result result = listener.await(5, TimeUnit.SECONDS);
+        Assert.assertTrue(result.isSucceeded());
+    }
 }