Hi JBoss Community! I developed an application (using Netbeans 5.5 with Sun AS 9.0) that uses following technologies: - Database MySQL 5.0 - Persistence JPA - Business Layer EJB 3.0 - Web Servlet JSP with JSTL 1.1 JSF 1.1 Everything work fine in my development environment, but the production environment uses JBoss 4.05 GA. I confess: I'm newbie with JBoss and I am having many problems to deploy my application in this server. Lets go to the issues: 1- JSF doesn't work When I used My Faces (already installed in the server), JSF page worked, but layout was corrupted. So, I tried use JSF RI 1.1 (as in my development environment). For it: - I deleted jsf-lib directory - I upload jsf-api.jar and jsf-impl (and dependencies) to <jboss home>/server/default/deploy/jbossweb-tomcat55.sar/ (because I want the .ear be small) - I modified <jboss home>/server/default/deploy/jbossweb-tomcat55.sar/conf/web.xml, commenting the part below: <init-param> <param-name>engineOptionsClass</param-name> <param-value> org.jboss.web.tomcat.tc5.jasper.JspServletOptions </param-value> </init-param> Specify the jars relative to the jbossweb-tomcat55.sar that should be scanned for common tag lib descriptors to include in every war deployment. <init-param> MyFaces tlds <param-name>tagLibJar0</param-name> <param-value>jsf-libs/myfaces-impl.jar</param-value> </init-param> And finally, I cleaned work and tmp directories. After it, I restart JBoss, but when I test the application, I get the following error: java.lang.NoClassDefFoundError: org.apache.myfaces.taglib.core.ViewTag at org.apache.jsp.views.apps.artigos.listarArtigos_jsp._jspx_meth_f_view_0(listarArtigos_jsp.java:115) at org.apache.jsp.views.apps.artigos.listarArtigos_jsp._jspService(listarArtigos_jsp.java:91) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301) at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322) at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:147) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at com.sivople.web.site.filters.LoadNewsControllerFilter.doFilter(LoadNewsControllerFilter.java:58) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595) 2- JSTL Expression Language are not been interpreted Code like this: <c:forEach items="${sessionScope.news}" var="item"> <a href="/sivople/views/apps/noticias/lerNoticia.jsp?noticia=<c:out value='${item.contentUrl}' />"> <c:out value="${item.title}" /> </c:forEach> is rendering as below: ${item.title} In this case, there isn't errors in the log. Any sugestions? *** My web.xml: *** <?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <listener-class>com.sun.faces.config.ConfigureListener</listener-class> <context-param> <param-name>com.sun.faces.verifyObjects</param-name> <param-value>false</param-value> </context-param> <context-param> <param-name>com.sun.faces.validateXml</param-name> <param-value>true</param-value> </context-param> <context-param> <param-name>javax.faces.STATE_SAVING_METHOD</param-name> <param-value>client</param-value> </context-param> <servlet-name>Faces Servlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> <load-on-startup>1</load-on-startup> <servlet-name>ViewGalleryControllerServlet</servlet-name> <servlet-class>com.sivople.web.site.servlets.ViewGalleryControllerServlet</servlet-class> <init-param> <param-name>forwardUrl</param-name> <param-value>/views/apps/verGaleria.jsp</param-value> </init-param> <filter-name>LoadNewsControllerFilter</filter-name> <filter-class>com.sivople.web.site.filters.LoadNewsControllerFilter</filter-class> <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>*.jsf</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>ViewGalleryControllerServlet</servlet-name> <url-pattern>/servlet/galerias/ViewGalleryControllerServlet</url-pattern> </servlet-mapping> <filter-mapping> <filter-name>LoadNewsControllerFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <session-config> <session-timeout> 30 </session-timeout> </session-config> <welcome-file-list> <welcome-file> index.jsp </welcome-file> </welcome-file-list> <jsp-config> <taglib-uri> http://java.sun.com/jstl/core </taglib-uri> <taglib-location> /WEB-INF/c.tld </taglib-location> </jsp-config> </web-app> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4051560#... 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