doSubmitAndLock

Just upgraded to Barracuda 1.2.5 and forms in my app are not working -
the doSubmitAndLock Javascript function appears to be new (from 1.1.1)
and based on the 2 entries I have found in the archives, the resolution
is to ensure the entries below are in web.xml.
 
Since I already have those, am I missing something ?
 
Thanks
Paul
 
 
<servlet>
        <servlet-name>ResourceGateway</servlet-name>
 
<servlet-class>org.enhydra.barracuda.core.helper.servlet.ResourceGateway
</servlet-class>
</servlet>
 
<servlet-mapping>
        <servlet-name>ResourceGateway</servlet-name>
        <url-pattern>/xlib/*</url-pattern>
</servlet-mapping>