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From "Felix Meschberger (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (FELIX-2774) HTTP Servlet RequestDispatcher 'forward' has invalid request pathInfo
Date Wed, 12 Jan 2011 03:45:46 GMT

     [ https://issues.apache.org/jira/browse/FELIX-2774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Felix Meschberger reassigned FELIX-2774:

    Assignee: Felix Meschberger

> HTTP Servlet RequestDispatcher 'forward' has invalid request pathInfo
> ---------------------------------------------------------------------
>                 Key: FELIX-2774
>                 URL: https://issues.apache.org/jira/browse/FELIX-2774
>             Project: Felix
>          Issue Type: Bug
>          Components: HTTP Service
>    Affects Versions: http-2.0.4
>            Reporter: David Hay
>            Assignee: Felix Meschberger
> I'm trying to have one servlet forward to another servlet.  However, the forwarding doesn't
seem to work.
> I've set up the proxy servlet in my web.xml as follows (and this is the only servlet...no
filters defined)
>     <servlet>
>         <servlet-name>osgi-servlet-bridge</servlet-name>
>         <servlet-class>org.apache.felix.http.proxy.ProxyServlet</servlet-class>
>         <load-on-startup>1</load-on-startup>
>     </servlet>
>     <servlet-mapping>
>         <servlet-name>osgi-servlet-bridge</servlet-name>
>         <url-pattern>/*</url-pattern>
>     </servlet-mapping>
> I then have two bundles, each registers a servlet under a different path (e.g. bundle
A registers under alias '/a' and bundle B registers under alias '/b') using the whiteboard
pattern.  The implementation of servlet A ends up doing this:
> RequestDispatcher rd = request.getRequestDispatcher("/b/some/path");
> rd.forward(request, response);
> This finds the ServletHandler for servlet B just fine, but gets hung up in the 'handle'
method. I think this is due to the implementation of the internal RequestWrapper class in
the ServletPipeline class.  This implementation overrides the getRequestURI method with the
passed in value.  However, ServletHandler.handle passed the result of HttpServletRequest.getPathInfo()
to the 'matches' method as a final check to make sure that the servlet should be invoked.
 Since the RequestWrapper class does not override getPathInfo, it returns the value from the
original request....which is '/a' in my example.

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