The resolution to JBSEAM-1294 has brought out another NPE exception condition. ------------------------------------------------------------------------------ Key: JBSEAM-1551 URL: http://jira.jboss.com/jira/browse/JBSEAM-1551 Project: JBoss Seam Issue Type: Bug Affects Versions: 1.3.0.ALPHA Reporter: Chris Rudd The the stock JSF converters require that he component parameter of getAsString not be null. The following is a code snipit from Param.getValueFromModel : converter.getAsString( facesContext, facesContext.getViewRoot(), value ); The code is using the view root as the component, which is null as ExceptionFilter.createFacesContext does not setup an initial UIViewRoot. I made the following change and it seems to have resolved the problem : ExceptionFilter.java private MockFacesContext createFacesContext(HttpServletRequest request, HttpServletResponse response) { MockFacesContext ctx = new MockFacesContext( new MockExternalContext(getServletContext(), request, response), new MockApplication() ); ctx.setViewRoot( new UIViewRoot() ); return ctx; } -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira