Integrating jspx with facelet #4391

I'm using jspx as view technology in JSF application.As JSF 2.2 is uses Facelet as default View Technology. So I have specified javax.faces.FACELETS_VIEW_MAPPINGS in web.xml.

web.xml

`

demo

index.html
index.jsp

<servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>/faces/*</url-pattern>
    <url-pattern>*.jspx</url-pattern>
</servlet-mapping>
<context-param>
    <param-name>javax.faces.CONFIG_FILES</param-name>
    <param-value>/WEB-INF/faces-config.xml,/WEB-INF/navigation-config.xml</param-value>
</context-param>
<context-param>
    <param-name>primefaces.THEME</param-name>
    <param-value>none</param-value>
</context-param>
<context-param>
    <description>State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2</description>
    <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
    <param-value>server</param-value>
</context-param>
<context-param>
    <param-name>com.sun.faces.serializeServerState</param-name>
    <param-value>false</param-value>
</context-param>
<context-param>
    <param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
    <param-value>resourcesapplication</param-value>
</context-param>
<context-param>
    <param-name>javax.faces.PROJECT_STAGE</param-name>
    <param-value>Production</param-value>
</context-param>
<context-param>
    <param-name>javax.faces.FACELETS_SKIP_COMMENTS</param-name>
    <param-value>false</param-value>
</context-param>
<context-param>
    <param-name>javax.faces.VALIDATE_EMPTY_FIELDS</param-name>
    <param-value>false</param-value>
</context-param>
<context-param>
    <param-name>javax.faces.DEFAULT_SUFFIX</param-name>
    <param-value>.jspx</param-value>
</context-param>
**<context-param>
    <param-name>javax.faces.FACELETS_VIEW_MAPPINGS</param-name>
    <param-value>*.jspx</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>
<session-config>
    <session-timeout>30</session-timeout>
</session-config>

`

I'm using wildfly 15 (Full Profile) application server.But, while deploying I'm getting exception -

2018-12-26 18:35:20,009 INFO [javax.enterprise.resource.webcontainer.jsf.config] (ServerService Thread Pool -- 157) Initializing Mojarra 2.3.5.SP2 for context '/jsfdemo'
2018-12-26 18:35:20,134 SEVERE [javax.enterprise.resource.webcontainer.jsf.config] (ServerService Thread Pool -- 157) Critical error during deployment: : java.lang.UnsupportedOperationException: UT010042: This method cannot be called from a servlet context listener that has been added programatically
at

...

2018-12-26 18:35:20,178 ERROR [org.jboss.as.controller.management-operation] (External Management Request Threads -- 1) WFLYCTL0013: Operation ("deploy") failed - address: ([("deployment" => "jsfdemo.war")]) - failure description: {"WFLYCTL0080: Failed services" => {"jboss.deployment.unit."jsfdemo.war".undertow-deployment" => "java.lang.RuntimeException: java.lang.RuntimeException: java.lang.UnsupportedOperationException: UT010042: This method cannot be called from a servlet context listener that has been added programatically
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.UnsupportedOperationException: UT010042: This method cannot be called from a servlet context listener that has been added programatically
Caused by: java.lang.RuntimeException: java.lang.UnsupportedOperationException: UT010042: This method cannot be called from a servlet context listener that has been added programatically
Caused by: java.lang.UnsupportedOperationException: UT010042: This method cannot be called from a servlet context listener that has been added programatically"}}
2018-12-26 18:35:20,180 ERROR [org.jboss.as.server] (External Management Request Threads -- 1) WFLYSRV0021: Deploy of deployment "jsfdemo.war" was rolled back with the following failure message:
{"WFLYCTL0080: Failed services" => {"jboss.deployment.unit."jsfdemo.war".undertow-deployment" => "java.lang.RuntimeException: java.lang.RuntimeException: java.lang.UnsupportedOperationException: UT010042: This method cannot be called from a servlet context listener that has been added programatically
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.UnsupportedOperationException: UT010042: This method cannot be called from a servlet context listener that has been added programatically
Caused by: java.lang.RuntimeException: java.lang.UnsupportedOperationException: UT010042: This method cannot be called from a servlet context listener that has been added programatically
Caused by: java.lang.UnsupportedOperationException: UT010042: This method cannot be called from a servlet context listener that has been added programatically"}}
2018-12-26 18:35:20,263 INFO [org.jboss.as.server.deployment] (MSC service thread 1-8) WFLYSRV0028: Stopped deployment jsfdemo.war (runtime-name: jsfdemo.war) in 82ms