code: @SuppressWarnings("deprecation")
      private static List<Listener> createListenerAdapters(Object provider) {
  
          final List<Listener> listeners = new ArrayList<Listener>();
  
          if (provider instanceof AuthenticationSuccessListener) {
              listeners.add(new AuthenticationSuccessListenerAdapter(
                      (AuthenticationSuccessListener) provider));
          }
  
          if (provider instanceof AuthenticationFailureListener) {
              listeners.add(new AuthenticationFailureListenerAdapter(
                      (AuthenticationFailureListener) provider));
          }
  
          if (provider instanceof TunnelConnectListener) {
              listeners.add(new TunnelConnectListenerAdapter(
                      (TunnelConnectListener) provider));
          }
  
          if (provider instanceof TunnelCloseListener) {
              listeners.add(new TunnelCloseListenerAdapter(
                      (TunnelCloseListener) provider));
          }
  
          return listeners;
  
      }
docs: Creates a list of adapters for the given object, based on the legacy
  listener interfaces it implements.
  
  @param provider
  An object that implements zero or more legacy listener interfaces.
  
  @return
  The list of listeners represented by the given provider class.