wrong css class for wp_nav_menu container and menu item

While creating a new theme for wp:

I’m calling wp_nav_menu() as below:

wp_nav_menu(array('theme_location' => 'primary', 'container_class' => 'my_c_menu', 'menu_class' => 'ul_nav_class'))

and it returns:

<div class="ul_nav_class"><ul><li class="current_page_item"><a title="Home" href="https://localhost/wordpress4.2/">Home</a></li><li class="page_item page-item-2"><a href="https://localhost/wordpress4.2/?page_id=2">Sample Page</a></li></ul></div>

expecting:

<div class="my_c_menu"><ul class="ul_nav_class"><li><a title="Home" href="https://localhost/wordpress4.2/">Home</a></li><li class="page_item page-item-2"><a href="https://localhost/wordpress4.2/?page_id=2">Sample Page</a></li></ul></div>

but actually I want to setup:

<div class="my_c_menu"><ul class="ul_nav_class"><li class="active"><a title="Home" href="https://localhost/wordpress4.2/">Home</a></li><li><a href="https://localhost/wordpress4.2/?page_id=2">Sample Page</a></li></ul></div>