Do not block the WebSocket from receiving bytes or text fragments, close AsyncHttpClient#660

Author: Stephane Landelle

providers/netty/src/main/java/org/asynchttpclient/providers/netty/ws/NettyWebSocket.java

@@ -179,10 +179,8 @@ private boolean hasWebSocketTextListener() {
     @Override
     public WebSocket addWebSocketListener(WebSocketListener l) {
         listeners.add(l);
-        if (l instanceof WebSocketByteListener)
-            interestedInByteMessages = true;
-        else if (l instanceof WebSocketTextListener)
-            interestedInTextMessages = true;
+        interestedInByteMessages = interestedInByteMessages || l instanceof WebSocketByteListener;
+        interestedInTextMessages = interestedInTextMessages || l instanceof WebSocketTextListener;
         return this;
     }
 
@@ -192,7 +190,7 @@ public WebSocket removeWebSocketListener(WebSocketListener l) {
 
         if (l instanceof WebSocketByteListener)
             interestedInByteMessages = hasWebSocketByteListener();
-        else if (l instanceof WebSocketTextListener)
+        if (l instanceof WebSocketTextListener)
             interestedInTextMessages = hasWebSocketTextListener();
 
         return this;