request.getContextPath() Liferay 7, display image liferay

In this post I just want to mention the value of 'request.getContextPath()' in liferay 7.
Before 7 'request.getContextPath()' return the name of custom portlet project.
Now this time it is returning

/o/base package name

Here '/o' appended with our base package name.

Suppose I gave "org.liferayasif.restautrant" package name at the time of creation of 
liferay module project then 

'request.getContextPath()' will return : '/o/org.liferayasif.restautrant'

if we want to display our module project name instead of package name we have to add one line in 'bnd.bnd' file and the code is

Web-ContextPath: /custom-module-project name

Web-ContextPath: /RestaurantProject (RestaurantProject is my module project name)

now the value return by 
'request.getContextPath()' will be '/o/RestaurantProject'

RestaurantProject is my module project name.

'request.getContextPath()' having lots of use but I am using it to display my custom image that I stored inside module portlet.

I created one folder namely 'images' and the path is
'/META-INF/resources/images'

inside this images folder I stored my images and displaying in jsp pages.
Code to display images in my jsp page is

<img src="<%= request.getContextPath() %>/images/menu_list4.jpg">

if you don't want to use request.getContextPath() then you can directly write your porlet name with prefix '/o'.

Like this

<img src="/o/custom-module-porltet-name/images/menu_list.jpg" alt="problem">

<img src="/o/RestaurantProject/images/menu_list.jpg" alt="problem">

RestaurantProject: is my custom module portlet name.

Where 'menu_list.jpg' is my pic name.