2. Create pretty-config.xml
This is where you will create URL mappings between external URL patterns and your internal view files, Servlets, and other resources. Be sure to replace the mapping below with a mapping that matches your application.

/WEB-INF/pretty-config.xml
<pretty-config xmlns="http://ocpsoft.org/schema/rewrite-config-prettyfaces" 
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  xsi:schemaLocation="http://ocpsoft.org/schema/rewrite-config-prettyfaces
                      http://ocpsoft.org/xml/ns/prettyfaces/rewrite-config-prettyfaces.xsd">

	<url-mapping id="login">
		<pattern value="/login" />
		<view-id value="/legacy/user/login.jsp" />
	</url-mapping>

</pretty-config>

http://ocpsoft.org/prettyfaces/#section-5