Giving multiple URL patterns to Servlet Filter

I am using a Servlet Filter in my JSF application. I have three groups of Web pages in my application, and I want to check Authentication for these pages in my Servlet Filter:

my Folders

/Admin/ *.xhtml

/Supervisor/*.xhtml
/Employee/*.xhtml

and I am writing web.xml like

<filter>
    <filter-name>LoginFilter</filter-name>
    <filter-class>com.ems.admin.servlet.LoginFilter</filter-class>
</filter>

<filter-mapping>
    <filter-name>LoginFilter</filter-name>
    <url-pattern>/Employee/*</url-pattern>
</filter-mapping>
<filter-mapping>
    <filter-name>LoginFilter</filter-name>
    <url-pattern>/Admin/*</url-pattern>
</filter-mapping>
<filter-mapping>
    <filter-name>LoginFilter</filter-name>
    <url-pattern>/Supervisor/*</url-pattern>
</filter-mapping>

but requests like

http://localhost:8080/EMS2/faces/Html/Admin/Upload.xhtml

are not entering into Filter.

I have to provide security to these 3 folders.

How to solve this problem ?