Port f03b5f9

Author: jfarcand

providers/netty/src/main/java/org/asynchttpclient/providers/netty/handler/WebSocketProtocol.java

@@ -200,7 +200,8 @@ public void onClose(ChannelHandlerContext ctx) {
  NettyWebSocket webSocket = NettyWebSocket.class.cast(h.onCompleted());
 
  // FIXME How could this test not succeed, we just checked above that attribute is a NettyResponseFuture????
- if (attribute != DiscardEvent.INSTANCE)
+ LOGGER.trace("Connection was closed abnormally (that is, with no close frame being sent).");
+ if (attribute != DiscardEvent.INSTANCE && webSocket != null)
  webSocket.close(1006, "Connection was closed abnormally (that is, with no close frame being sent).");
  } catch (Throwable t) {
  LOGGER.error("onError", t);