I try Ajax(Ajax4jsf1.1.1) function with jsf and portlet ,I don't konw why it have a error of jsp page when click the button of jsp page ,the error is : Request error,status:500 (/404 )internal Server error and the server log error is : 2007-11-25 11:34:25,968 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/ajaxTest2].[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception java.lang.ClassCastException: org.apache.catalina.core.ApplicationContextFacade cannot be cast to javax.portlet.PortletContext at com.sun.faces.portlet.FacesContextFactoryImpl.getFacesContext(FacesContextFactoryImpl.java:64) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:239) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127) at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 1.below is my web xml : <display-name>Ajax4jsf Filter</display-name> <filter-name>ajax4jsf</filter-name> <filter-class>org.ajax4jsf.Filter</filter-class> <filter-mapping> <filter-name>ajax4jsf</filter-name> <servlet-name>Faces Servlet</servlet-name> REQUEST FORWARD INCLUDE </filter-mapping> 2.below is my jsp : <h:form> <h:inputText id="test" value="#{managebean.info}"> <a4j:support event="onkeyup" reRender="test3"/> </h:inputText> <a4j:commandButton id="dd" value="Ajax button"> <a4j:support action="#{managebean.pring}" event="onclick" reRender="test3"/> </a4j:commandButton> </h:form> </f:view> 3.I add ajax4jsf-1.1.1.jar and ajax4jsf-protlet-1.1.1.jar View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4107554#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...