JasperServer Portlet on Webcenter

Has anyone attempted embedding the JasperServer portlet into Spaces? I managed to get the portlet deployed to Weblogic and register it as a WSRP Producer but it doesn't render on Spaces. I get errors relating to Spring framework (Jasper uses the spring web framework) when I add the portlet to Spaces.
<Nov 26, 2010 11:56:12 AM EST> <Error> <oracle.portlet.client.connection.wsrp.HTTPClientTransport> <WCS-40152> <A request to the producer URL "http://10.0.3.26:8889/jasper_portlet/portlets/WSRP_v2_Markup_Service" resulted in a status 500 response with fault string "oracle.portlet.wsrp.v2.OperationFailedException: oracle.portlet.server.container.OperationFailedException: javax.portlet.PortletException: Request processing failed". The fault code given was "ns0:OperationFailed". The producer generated a timestamp of 2010-11-26T11:56:12+1100 and associated the following stack trace with the fault message: oracle.portlet.wsrp.v2.OperationFailedException: oracle.portlet.server.container.OperationFailedException: javax.portlet.PortletException: Request processing failed
     at oracle.portlet.wsrp.v2.WSRPv2ToServer.getMarkup(WSRPv2ToServer.java:15310)
     at oracle.portlet.wsrp.v2.WSRP_v2_Markup_PortTypeSoapToJaxb.getMarkup(WSRP_v2_Markup_PortTypeSoapToJaxb.java:81)
Caused by: java.lang.IllegalStateException: Invalid portlet request phase: null
     at org.springframework.web.portlet.FrameworkPortlet.processRequest(FrameworkPortlet.java:531)
I know this is Spring related but I ask here to see if anyone has succeeded in getting Jasper to work with webcenter spaces or if there are any recommendations on the best way to achieve my requirement. Is WSRP the only way way to consume pre-developed portlets in Webcenter Spaces?
-- Bijesh
Edited by: Bijesh Krishnadas on Nov 25, 2010 8:14 PM - Where did all my text go??

Atul,
On Webcenter framework - JSF task flow vs Portlet you can find a complete study on the (dis)advantages of both.
The guideline I use myself is: Do we require the functionality in multiple portals of which one or more is not a WebCenter Portal?
If so, use portlets (e.g. if you want to use the functionality in your WebCenter application and e.g. an Oracle Portal)
Also, exposing the functionality to 'the world' could make you decide to implement a portlet.
If you only need the functionality internally, in one or more applications that can consume task flows, implement it as task flow.
That taskflow can be deployed as a library. If you attach that library to your application, you can use the task flow.
Good luck,
Rob

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