I have now re-installed JBoss using the installer and selected ejb3-profile. But the error still appears.
[2006-11-12 15:46:45,828 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/].[jsp]] Servlet.service() for servlet jsp threw exception javax.faces.el.EvaluationException: Cannot get value for expression '#{messageList.rowCount==0}' at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:402) at org.jboss.seam.actionparam.ActionParamValueBinding.getValue(ActionParamValueBinding.java:83) at javax.faces.component.UIComponentBase.isRendered(UIComponentBase.java:1075) at javax.faces.webapp.UIComponentTag.isSuppressed(UIComponentTag.java:884) at javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:313) at org.apache.jsp.test_jsp._jspx_meth_h_outputText_0(test_jsp.java:174) at org.apache.jsp.test_jsp._jspx_meth_f_view_0(test_jsp.java:132) at org.apache.jsp.test_jsp._jspService(test_jsp.java:96) 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 org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:416) at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234) at org.jboss.seam.jsf.SeamViewHandler.renderView(SeamViewHandler.java:59) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.extremecomponents.table.filter.AbstractExportFilter.doFilter(AbstractExportFilter.java:49) 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$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595) Caused by: org.jboss.seam.InstantiationException: Could not instantiate Seam component: messageManager at org.jboss.seam.Component.newInstance(Component.java:1578) at org.jboss.seam.Component.getInstance(Component.java:1492) at org.jboss.seam.Component.getInstance(Component.java:1466) at org.jboss.seam.Component.getInstanceFromFactory(Component.java:1538) at org.jboss.seam.Component.getInstance(Component.java:1482) at org.jboss.seam.Component.getInstance(Component.java:1466) at org.jboss.seam.jsf.SeamVariableResolver.resolveVariable(SeamVariableResolver.java:44) at org.apache.myfaces.config.LastVariableResolverInChain.resolveVariable(LastVariableResolverInChain.java:42) at org.apache.myfaces.el.ValueBindingImpl$ELVariableResolver.resolveVariable(ValueBindingImpl.java:574) at org.apache.commons.el.NamedValue.evaluate(NamedValue.java:124) at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:140) at org.apache.commons.el.BinaryOperatorExpression.evaluate(BinaryOperatorExpression.java:154) at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:383) ... 46 more Caused by: javax.naming.NamingException: Could not dereference object [Root exception is javax.ejb.EJBException: Invalid invocation of local interface] at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1150) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:705) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587) at javax.naming.InitialContext.lookup(InitialContext.java:351) at org.jboss.seam.Component.instantiateSessionBean(Component.java:911) at org.jboss.seam.Component.instantiate(Component.java:898) at org.jboss.seam.Component.newInstance(Component.java:1574) ... 58 more Caused by: javax.ejb.EJBException: Invalid invocation of local interface at org.jboss.ejb3.JndiProxyFactory.getObjectInstance(JndiProxyFactory.java:60) at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304) at org.jnp.interfaces.NamingContext.getObjectInstance(NamingContext.java:1125) at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1142) ... 64 more Caused by: java.lang.ClassCastException: org.jboss.ejb3.stateful.StatefulLocalProxyFactory at org.jboss.ejb3.JndiProxyFactory.getObjectInstance(JndiProxyFactory.java:51) ... 67 more] View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3985221#3985221 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3985221 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