after changed .jsf extention couldnt run the project

Question

earlier when we save.xhtml it had run the project but now when we change .jsf it is not run the project.. there is error in 404

here my code:

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- <!DOCTYPE web-app PUBLIC  "-//Sun Microsystems, Inc.//DTD Web    Application 2.3//EN"  "http://java.sun.com/dtd/web-app_2_3.dtd" >
 -->
  <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xmlns="http://java.sun.com/xml/ns/javaee"      xmlns:web="http://java.sun.com/xml/ns/javaee"     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee      http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
    <display-name>sms</display-name>
    <welcome-file-list>
      <welcome-file>/pages/xhtml/login.jsf</welcome-file>
    </welcome-file-list>
    <context-param>
      <param-name>primefaces.THEME</param-name>
      <param-value>ui-lightness</param-value>
    </context-param>
    <context-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>
      /WEB-INF/applicationContext.xml

            </param-value>
    </context-param>
    <listener>
      <listener- class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <filter>
      <filter-name>springSecurityFilterChain</filter-name>
      <filter- class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>
    <filter-mapping>
      <filter-name>springSecurityFilterChain</filter-name>
      <url-pattern>/*</url-pattern>
      <dispatcher>FORWARD</dispatcher>
      <dispatcher>REQUEST</dispatcher>
      <!-- mandatory to allow the managed bean to forward the request to the filter -->
    </filter-mapping>
    <context-param>
      <param-name>primefaces.UPLOADER</param-name>
      <param-value>commons</param-value>
    </context-param>
    <filter>
      <filter-name>PrimeFaces FileUpload Filter</filter-name>
      <filter-class>
         org.primefaces.webapp.filter.FileUploadFilter
        </filter-class>
    </filter>
    <filter-mapping>
      <filter-name>PrimeFaces FileUpload Filter</filter-name>
      <servlet-name>Faces Servlet</servlet-name>
    </filter-mapping>
    <listener>
      <listener-class>com.sun.faces.config.ConfigureListener</listener-class>
    </listener>
    <context-param>
      <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
      <param-value>Development</param-value>
    </context-param>
    <context-param>
      <param- name>javax.faces.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE</param- name>
      <param-value>true</param-value>
    </context-param>
    <context-param>
      <param-name>com.sun.faces.writeStateAtFormEnd</param-name>
      <param-value>false</param-value>
    </context-param>
    <listener>
      <listener-class>
      org.springframework.security.web.session.HttpSessionEventPublisher
            </listener-class>
    </listener>
    <listener>
      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <listener>
      <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
    </listener>
    <context-param>
      <param-name>javax.faces.PROJECT_STAGE</param-name>
      <param-value>Development</param-value>
    </context-param>
    <servlet>
      <servlet-name>Faces Servlet</servlet-name>
      < servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    </servlet>
    <servlet-mapping>
      <servlet-name>Faces Servlet</servlet-name>
      <url-pattern>*.jsf</url-pattern>
    </servlet-mapping>
    <context-param>
      <param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
      <param-value>resources.application</param-value>
    </context-param>
    <listener>
      <listener-class>com.sun.faces.config.ConfigureListener</listener-class>
    </listener>
    <error-page>
      <exception-type>javax.faces.application.ViewExpiredException</exception-type>
      <location>/pages/xhtml/sessionExpired.jsf</location>
    </error-page>
    <session-config>
      <session-timeout>30</session-timeout>
    </session-config>
  </web-app>

login.jsf

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"              "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
      <ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui"
 xmlns:b="http://bootsfaces.net/ui">
   <h:head>
     <title></title>

     </h:head>

    <h:body>
  <h:form>

    <h:outputText  value="Welcome " style="color:#BB7104;font-size:20px;">           </h:outputText><h:outputText value="Please Login"></h:outputText>
                                <br></br>
                            <h:message for="formLogin" style="color:red">                </h:message>


     <table style="margin-top: 10px;">
                            <tr><td>
                            <b:inputText id="uName" value="#{loginMB.loginaccess.username}" >

                             <f:facet name="prepend">
                              <b:iconAwesome name="fa fa-user" />
                             </f:facet>
                            </b:inputText>
                            <p:watermark value="UserName" for="uName"></p:watermark>
                            <h:message for="uName" style="color:red;font-size:11px;" id="un"></h:message>
                            </td></tr>
                            <tr><td>
                            <b:inputSecret id="pwd" value="#{loginMB.loginaccess.userpassword}"   placeholder="Password"> 

                             <f:facet name="prepend">
                            <b:iconAwesome name="fa fa-key" />
                             </f:facet>
                            </b:inputSecret>
                            <h:message for="pwd" id="pd" style="color:red;font-size:11px;"></h:message>
                            </td></tr>
                            </table>
                            </h:form>

                            <table>
                            <tr>
                            <td>
                            <b:commandButton value="Login" action="#{loginMB.userLogin}" look="warning"  iconAwesome="sign-in"></b:commandButton>
                            </td></tr></table>




       </ui:composition>

please give me any suggestion