code: @Override
      public java.util.concurrent.Future<ListTasksResult> listTasksAsync(com.amazonaws.handlers.AsyncHandler<ListTasksRequest, ListTasksResult> asyncHandler) {
  
          return listTasksAsync(new ListTasksRequest(), asyncHandler);
      }
docs: Simplified method form for invoking the ListTasks operation with an AsyncHandler.
  
  @see #listTasksAsync(ListTasksRequest, com.amazonaws.handlers.AsyncHandler)