in src/main/csharp/Connection.cs [299:313]
        private void HandleTransportResumed()
        {
            Tracer.Debug("Transport has resumed normal operation.");
            if(this.ConnectionResumedListener != null && !this.closed)
            {
                try
                {
                    this.ConnectionResumedListener();
                }
                catch
                {
                }
            }
        }