JSR168 Portlet assumes PortletRequest extends HttpServletRequest

in the method XWikiPortletRequest.getRequestURL() you return null if PortletRequest is not an instance of HttpServletRequest.

public StringBuffer getRequestURL()

{ if (request instanceof HttpServletRequest) return getHttpServletRequest().getRequestURL(); return null; }

returning null causes others parts of your code to throw a null pointer.

The 168 spec does not specify that the PortletRequest must extend the HttpServletRequest. Our Weblog Portal implementation does not have this type of ralationship and is therefore failing. We would like to get xwiki up and running in Weblogic Portal any chance we can get a fix for this?