Myfaces - preferred page language (JSP- facelets)

[Men rai]

Hi,
I want to build an application using MyFaces.
I downloaded the file tomahawk-examples-1.1.10-bin and I imported the sample myfaces-example-simple20-1.1.10 into netbeans.
My problem is that when I run it, it says that the file div.jsp is no available. My web.xml is as follows:

<welcome-file-list>
<welcome-file>div.jsf</welcome-file>
</welcome-file-list>

Thats because in the download menu at project properties - framework - Javaserver Faces - configuration - preferred page language appears JSP. I try to change it to facelets But when I save it stores JSP, when I enter again always appear JSP.

The libraries I'm using are the next ones:

libs.MyFaces.classpath=\
${base}/MyFaces/batik-awt-util-1.6-1.jar;\
${base}/MyFaces/batik-ext-1.6-1.jar;\
${base}/MyFaces/batik-gui-util-1.6-1.jar;\
${base}/MyFaces/batik-util-1.6-1.jar;\
${base}/MyFaces/commons-beanutils-1.8.3.jar;\
${base}/MyFaces/commons-codec-1.3.jar;\
${base}/MyFaces/commons-collections-3.2.1.jar;\
${base}/MyFaces/commons-digester-1.8.jar;\
${base}/MyFaces/commons-discovery-0.4.jar;\
${base}/MyFaces/commons-fileupload-1.2.1.jar;\
${base}/MyFaces/commons-io-1.3.2.jar;\
${base}/MyFaces/commons-lang-2.4.jar;\
${base}/MyFaces/commons-logging-1.1.1.jar;\
${base}/MyFaces/commons-validator-1.3.1.jar;\
${base}/MyFaces/jstl-1.2.jar;\
${base}/MyFaces/log4j-1.2.13.jar;\
${base}/MyFaces/myfaces-api-2.0.2.jar;\
${base}/MyFaces/myfaces-impl-2.0.2.jar;\
${base}/MyFaces/oro-2.0.8.jar;\
${base}/MyFaces/standard-1.1.2.jar;\
${base}/MyFaces/tomahawk20-1.1.10.jar;\
${base}/MyFaces/xml-apis-1.0.b2.jar;\
${base}/MyFaces/xmlParserAPIs-2.0.2.jar

I supose that If I could change the preferred page language to facelets it would work but I don not how.
Does anybody knows how can I do it? I want that when I request an *.jsf page it renders the xhtml page.
Thanks in advance

[Guy deLyonesse]

.jsf isn't used as a file extension.

You should have this in your web.xml file:

<context-param>
	<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
	<param-value>.xhtml</param-value>
</context-param>

This lets the servlet know what extension you're using by default in your app. You also need to map the servlet to the URL pattern.

	<servlet-mapping>
		<servlet-name>Persistent Faces Servlet</servlet-name>
		<url-pattern>*.jspx</url-pattern>
		<url-pattern>/xmlhttp/* </url-pattern>
		<url-pattern>/faces/*</url-pattern>
	</servlet-mapping>

When the request is submitted in these URL formats, it informs the servlet to treat it as a JSF request and proceeds accordingly.