Using struts-faces : can't find "forward".

Question

using struts-faces : can't find "forward".
I download the struts-faces lib and want to make a integration with struts && JSF.
The action's one method is executed, but after that, it can't find the forward page.
The console display:
// Here is the initLogon() method of LogonAction, just print 2 message
[LogonAction] DEBUG: initLogon start
[LogonAction] DEBUG: initLogon end
// Then output these:
[FacesRequestProcessor] DEBUG: Standard action perform returned /index.faces forward path
[FacesRequestProcessor] DEBUG: Performing standard forward config handling
[RequestProcessor] DEBUG: processForwardConfig(ForwardConfig[name=logon_page,path=/index.faces,redirect=false,contextRelative=false])
[FacesRequestProcessor] DEBUG: doForward(/index.faces)
// Then exception occured:
<[ServletContext(id=19306074,name=/interactive,context-path=/interactive)]
Servlet failed with Exception
java.lang.NullPointerException
        at org.apache.struts.faces.application.FacesRequestProcessor.doForward(FacesRequestProcessor.java:121)
        ......Here is part of my config file, maybe the exception was caused by something I missed
In struts-config.xml:
     <action-mappings>
          <action path="/LogonAction"
               type="org.interactive.interactive.presentation.security.LogonAction"
               scope="request"
               name="LogonForm"
               parameter="method"
               input="/LogonAction.do?method=initLogon"
               validate="false">
               <forward name="logon_page" path="/index.faces"/>
          </action>
     </action-mappings>     In web.xml:
     <servlet>
          <servlet-name>faces</servlet-name>
          <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
          <load-on-startup>1</load-on-startup>
     </servlet>
         <servlet-mapping>
                <servlet-name>faces</servlet-name>
                <url-pattern>*.faces</url-pattern>
         </servlet-mapping>           In faces-config.xml, I left it empty:
     <faces-config>
     </faces-config>           The index.jsp is very simple:
     it just include a string "This is index.jsp", no any tag.
Please give me some advice, thanks !

Answer 1

Need Help!
I use weblogic8.1 and
the entry is http://localhost:7001/interactive/LogonAction.do?method=initLogon
I don't know why it execute the initLogon() method but can't return to the page.