Faces Portlet on WebSphere 6.0

[Chandra Sekhar]

Hi,

I'm trying to deploy an application devleoped using JSF-Portal combitaion intially developed for WebSphere Application Sever (WAS) 5.1 on WAS 6.0.

For JSF we are using MyFaces-Tomahawk implemention version 1.1.5.

Also now I'm using RAD 7.0 for development. Initially I got exceptions related conflict between to JSF RI and My Faces implementation.

Then I followed the steps here http://wiki.apache.org/myfaces/Websphere_Installation and remvoed jar files from WAS.

My Portlet class is like as below

public class MyPortlet extends MyFacesGenericPortlet { /// }

Now I'm getting ClassCastException.

PortletRender E com.ibm.wps.engine.tags.PortletRenderTag doStartTag EJPEJ0066E: The portlet could not be rendered.
                                 javax.portlet.UnavailableException: Exception during portlet initialization
at com.ibm.wps.pe.pc.std.invoker.impl.PortletInvokerImpl.invoke(PortletInvokerImpl.java:229)
at com.ibm.wps.pe.pc.std.invoker.impl.PortletInvokerImpl.invoke(PortletInvokerImpl.java:168)
at com.ibm.wps.pe.pc.std.invoker.impl.PortletInvokerImpl.render(PortletInvokerImpl.java:97)
at com.ibm.wps.pe.pc.std.PortletContainerImpl.renderPortlet(PortletContainerImpl.java:110)
at com.ibm.wps.pe.pc.PortletContainerImpl.doRenderPortlet(PortletContainerImpl.java:587)
at com.ibm.wps.pe.ext.render.AbstractRenderManager.performService(AbstractRenderManager.java:247)
at com.ibm.wps.pe.pc.PortletContainerImpl.renderPortlet(PortletContainerImpl.java:115)
at com.ibm.wps.engine.tags.PortletRenderTag.doStartTag(PortletRenderTag.java:161)
at com.ibm._jsp._Control._jspx_meth_portal$1skin_portletRender_0(_Control.java:852)
at com.ibm._jsp._Control._jspx_meth_portal$1logic_if_3(_Control.java:884)
at com.ibm._jsp._Control._jspService(_Control.java:498)
at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:91)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1282)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1239)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:113)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:82)
 

Caused by: java.lang.ClassCastException: com.mytest.portlet.MyPortlet
at com.ibm.wps.pe.pc.std.invoker.impl.PortletServlet$PortletClone.<init>(PortletServlet.java:377)
... 130 more

Please help me to resolve this issue.

Thanks
Chandra

[Joe Matthew]

The post is confusing in the matter that it is mentioned that you are deploying to a WAS 6.1. What is the version of portal server that you are using?

The exception you posted is quite generic. It just says that it was not able to load the portlet. This could be due the fact that you might have deleted some necessary JARs earlier. Scanning all the exceptions logged can be a good way to diagnose the problem.

Hope I was of some help.

[Chandra Sekhar]

Hi,

Version of Portal Server is 6.0

I'm getting ClassCastException. Thats where i'm stuck.

Caused by: java.lang.ClassCastException: com.mytest.portlet.MyPortletat com.ibm.wps.pe.pc.std.invoker.impl.PortletServlet$PortletClone.<init>(PortletServlet.java:377)... 130 more

Anyway i'll check the logs again.

Thanks
[ July 08, 2008: Message edited by: Chandra Sekhar ]