See Thread at: http://www.techienuggets.com/Detail?tx=51644 Posted on behalf of a User Can you make a link to the Richfaces Forum entry. I cannot find any solution to the file upload problem there. I always get a ClassCastException using rich:fileUpload: java.lang.ClassCastException: org.jboss.portal.portlet.impl.jsr168.api.PortletSessionImpl at org.richfaces.renderkit.FileUploadRendererBase.getSessionId(FileUploadRendererBase.java:686) In Response To: Can you make a link to the Richfaces Forum entry. I cannot find any solution to the file upload problem there. I always get a ClassCastException using rich:fileUpload: java.lang.ClassCastException: org.jboss.portal.portlet.impl.jsr168.api.PortletSessionImpl at org.richfaces.renderkit.FileUploadRendererBase.getSessionId(FileUploadRendererBase.java:686)