We are trying to move our application from a JSF 1.1 based AS to a JSF 1.2 AS. In our current implementation we have the pattern where a XMLHttp browser request is made to a servlet which will try to reference the FacesContext in the service() method. This all worked under 1.1 just fine but when we deploy this to a 1.2 based server we get stack traces like: java.lang.NullPointerException at org.apache.catalina.connector.Request.setAttribute(Request.java:1443) at org.apache.catalina.connector.RequestFacade.setAttribute(RequestFacade.java:503) at com.sun.faces.context.RequestMap.put(ExternalContextImpl.java:1087) at com.sun.faces.util.RequestStateManager.getStateMap(RequestStateManager.java:281) at com.sun.faces.util.RequestStateManager.set(RequestStateManager.java:223) at com.sun.faces.el.FacesCompositeELResolver.setChainType(FacesCompositeELResolver.java:159) at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:71) at org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:61) at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) at com.sun.faces.application.ValueBindingValueExpressionAdapter.getValue(ValueBindingValueExpressionAdapter.java:113) at com.salesgene.servlets.tree.TreeNavigationServlet.service(TreeNavigationServlet.java:54) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.salesgene.common.filters.UserSessionFilter.doProcessing(UserSessionFilter.java:355) at com.salesgene.common.filters.UserSessionFilter.doFilter(UserSessionFilter.java:197) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619) This happens in every instance where we try to reference managed beans in a servlet. Oh, and we are getting the FacesContext following this approach: LifecycleFactory lifecycleFactory = (LifecycleFactory) FactoryFinder.getFactory(FactoryFinder.LIFECYCLE_FACTORY); Lifecycle lifecycle = lifecycleFactory.getLifecycle(LifecycleFactory.DEFAULT_LIFECYCLE); // Create new FacesContext. FacesContextFactory contextFactory = (FacesContextFactory) FactoryFinder.getFactory(FactoryFinder.FACES_CONTEXT_FACTORY); facesContext = contextFactory.getFacesContext( request.getSession().getServletContext(), request, response, lifecycle); // Create new View. UIViewRoot view = facesContext.getApplication().getViewHandler().createView( facesContext, ""); facesContext.setViewRoot(view); // Set current FacesContext. FacesContextWrapper.setCurrentInstance(facesContext); Anyhelp or advice would be most appreciated! -matt View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4236762#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...