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java.lang.ClassCastException: 	at com.sun.corba.ee.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:229)	at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)	at undefined.NewGenericPortlet.lookupNewSessionBean(NewGenericPortlet.java:185)	at undefined.NewGenericPortlet.doView(NewGenericPortlet.java:93)	at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:235)	at javax.portlet.GenericPortlet.render(GenericPortlet.java:163)	at com.sun.portal.portletappengine.PortletAppEngineServlet.service(PortletAppEngineServlet.java:261)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:860)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:585)	at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)	at java.security.AccessController.doPrivileged(Native Method)	at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)	at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)