[jboss-jira] [JBoss JIRA] Resolved: (JBPORTAL-727) ClassCastException from JBoss AS Tomcat ApplicationDispatcher when forwarding with portal provided DispatchedHttpServletRequest

[Julien Viet (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBPORTAL-727?page=all ]

Julien Viet resolved JBPORTAL-727.
----------------------------------

    Resolution: Done

We rewrote the request dispatching in 2.6 and we use a more compliant way to do it.

> ClassCastException from JBoss AS Tomcat ApplicationDispatcher when forwarding with portal provided DispatchedHttpServletRequest
> -------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: JBPORTAL-727
>                 URL: http://jira.jboss.com/jira/browse/JBPORTAL-727
>             Project: JBoss Portal
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Portal Core
>    Affects Versions: 2.2 Final
>         Environment: JBoss Portal 4.0.3SP1
> MyFaces
>            Reporter: Tuomas Kiviaho
>
> The portal.xml for reproducing the problem
> <portlet-class>org.apache.myfaces.portlet.MyFacesGenericPortlet</portlet-class>
> <init-param>
> 	<name>default-view</name>
> 	<value>/myservlet</value>
> </init-param>
> MyServlet service method
> req.getRequestDispatcher("/myjsp.jsp").forward(req, resp);
> The request seen below that is given to the servlet causes following exception.
> java.lang.ClassCastException: org.jboss.portal.portlet.impl.DispatchedHttpServletRequest
> 	at org.apache.catalina.core.ApplicationDispatcher.unwrapRequest(ApplicationDispatcher.java:814)
> 	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:401)
> The problem most propably relies either in Tomcat ApplicationDispatcher forwarding mechanism since inclusion works ok, but both request and servletcontext based dispachings using forward fail. 
> Couple of notes from Tomcat  ApplicationDispatcher 
> - doubled request unwrapping when forwarding maybe due to tomcat bug fix number 30949
> - wrapped request not discarded after unwrapping  
> These may be the real causes but this class mentions to function properly as long as request extends the standard wrapper. This is not the case with DispatchedHttpServletRequest.  

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