Hello, The application I'm working on requires a file gate.jar to be listed on the classpath as it needs to load classes dynamically. This seems to be causing my portal to throw exceptions when I try to view it, though the JBoss AS boots up without errors. If gate.jar is removed from the JBOSS_CLASSPATH environment variable the portal works fine. Also the application I'm developing works fine on same JBoss AS without the portal installed and said environment variables set. Any suggestions on how to get this jar file so it can load classes dynamically from it and still have my portal running would be much appreciated! Information and stack trace follows: JBoss AS / Portal: Installed bundled JBoss AS 4.0.4GA with Portal 2.4.0GA using the portal profile in the jems-installer-1.2.0BETA2 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/portal].[PortalServletWithPathMapping]] Servlet.service() for servlet PortalServletWithPathMapping threw exception java.lang.NoSuchMethodError: javax.servlet.http.HttpServletResponse.setCharacterEncoding(Ljava/lang/String;)V at org.jboss.portal.theme.LayoutDispatcher.include(LayoutDispatcher.java:122) at org.jboss.portal.theme.impl.JSPLayout.assembleResponse(JSPLayout.java:34) at org.jboss.portal.core.command.MarkupCommand.execute(MarkupCommand.java:360) at org.jboss.portal.core.command.ControllerCommand.dispatch(ControllerCommand.java:91) at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:140) at org.jboss.portal.core.aspects.controller.EventBroadcasterInterceptor.invoke(EventBroadcasterInterceptor.java:171) at org.jboss.portal.core.command.CommandInterceptor.invoke(CommandInterceptor.java:37) at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:130) at org.jboss.portal.core.aspects.controller.PageNavigationInterceptor.invoke(PageNavigationInterceptor.java:80) at org.jboss.portal.core.command.CommandInterceptor.invoke(CommandInterceptor.java:37) at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:130) at org.jboss.portal.core.aspects.controller.PolicyEnforcementInterceptor.invoke(PolicyEnforcementInterceptor.java:79) at org.jboss.portal.core.command.CommandInterceptor.invoke(CommandInterceptor.java:37) at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:130) at org.jboss.portal.core.aspects.controller.PortalNodeInterceptor.invoke(PortalNodeInterceptor.java:59) at org.jboss.portal.core.command.CommandInterceptor.invoke(CommandInterceptor.java:37) at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:130) at org.jboss.portal.common.invocation.Invocation.invoke(Invocation.java:171) at org.jboss.portal.core.command.CommandContext.execute(CommandContext.java:102) at org.jboss.portal.core.command.ExecutionContext.execute(ExecutionContext.java:91) at org.jboss.portal.core.command.ExecutionContext.execute(ExecutionContext.java:78) at org.jboss.portal.core.CoreController.handle(CoreController.java:126) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133) at org.jboss.mx.server.Invocation.invoke(Invocation.java:88) at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142) at org.jboss.mx.server.Invocation.invoke(Invocation.java:88) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) at org.jboss.mx.util.JMXInvocationHandler.invoke(JMXInvocationHandler.java:287) at $Proxy133.handle(Unknown Source) at org.jboss.portal.server.ServerInvocation.dispatch(ServerInvocation.java:79) at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:140) at org.jboss.portal.server.aspects.server.NavigationInterceptor.invoke(NavigationInterceptor.java:64) at org.jboss.portal.server.ServerInterceptor.invoke(ServerInterceptor.java:37) at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:130) at org.jboss.portal.server.aspects.server.ContentTypeInterceptor.invoke(ContentTypeInterceptor.java:65) at org.jboss.portal.server.ServerInterceptor.invoke(ServerInterceptor.java:37) at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:130) at org.jboss.portal.core.aspects.server.LocaleInterceptor.invoke(LocaleInterceptor.java:74) at org.jboss.portal.server.ServerInterceptor.invoke(ServerInterceptor.java:37) at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:130) at org.jboss.portal.core.aspects.server.UserInterceptor.invoke(UserInterceptor.java:174) at org.jboss.portal.server.ServerInterceptor.invoke(ServerInterceptor.java:37) at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:130) at org.jboss.portal.server.aspects.server.SessionInvalidatorInterceptor.invoke(SessionInvalidatorInterceptor.java:92) at org.jboss.portal.server.ServerInterceptor.invoke(ServerInterceptor.java:37) at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:130) at org.jboss.portal.core.aspects.server.TransactionInterceptor.org$jboss$portal$core$aspects$server$TransactionInterceptor$invoke$aop(TransactionInterceptor.java:49) at org.jboss.portal.core.aspects.server.TransactionInterceptor$invoke_N5143606530999904530.invokeNext(TransactionInterceptor$invoke_N5143606530999904530.java) at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79) at org.jboss.aspects.tx.TxInterceptor$RequiresNew.invoke(TxInterceptor.java:275) at org.jboss.portal.core.aspects.server.TransactionInterceptor$invoke_N5143606530999904530.invokeNext(TransactionInterceptor$invoke_N5143606530999904530.java) at org.jboss.portal.core.aspects.server.TransactionInterceptor.invoke(TransactionInterceptor.java) at org.jboss.portal.server.ServerInterceptor.invoke(ServerInterceptor.java:37) at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:130) at org.jboss.portal.common.invocation.Invocation.invoke(Invocation.java:171) at org.jboss.portal.server.servlet.PortalServlet.process(PortalServlet.java:294) at org.jboss.portal.server.servlet.PortalServlet.doGet(PortalServlet.java:172) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) 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.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432) 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.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) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4055383#... 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