ForwardExternalContextRequestWrapper getServletRequest() always returns an empty String

> Hi,
>  
> I came across this, which may be of interest to others, when debugging OPS:
>  
> Problem:
>  
> 1) An Xform submits to a Struts action.
> 2) The action throws exception.
> 3) Exception handling has been configured declaratively in config.xml to
> use a velocity template for displaying an error page.
> 4) Velocity throws an excpetion because it cannot find a template called “”.
>
> Cause:
>
> At runtime OPS passes an instance of
> ExternalContextToHttpServletRequestWrapper to the Struts action. This
> object's getServletPath() method in turn calls getServletPath() on an
> member variable of type ForwardExternalContextRequestWrapper. The
> problem is that this method always returns an empty string.
> Conequentially the VelocityViewServlet handleRequest() method always
> fails when it tries to get the template name from the servlet path.
>
>  
>
> Jonathan
>  
> Skype: jonathan.j.wright