A simple failover for a given webapp (with session state) doesn't work, web.war is attached, steps to reproduce are below.

Environment:

• JBoss SVN trunk (April 30), approximately AS 6 M3
• mod-cluster provide httpd

How to reproduce:
1. Start node1
2. Access a webapp (node1)
3. Start node2
4. Kill node1
5. Access the webapp, error:
2010-04-29 09:35:22,118 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/SessionDemo].[jsp]] (ajp-192.168.1.5-8009-5) Servlet.service() for servlet jsp threw exception: java.lang.ClassNotFoundException: org.apache.jsp.index_jsp
at java.net.URLClassLoader$1.run(URLClassLoader.java:202) [:1.6.0_18]
at java.security.AccessController.doPrivileged(Native Method) [:1.6.0_18]
at java.net.URLClassLoader.findClass(URLClassLoader.java:190) [:1.6.0_18]
at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:135) [:]
at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:67) [:]
at org.jboss.web.tomcat.service.TomcatInjectionContainer.newInstance(TomcatInjectionContainer.java:276) [:6.0.0-SNAPSHOT]
at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:145) [:]
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324) [:]
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:326) [:]
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:253) [:]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [:1.0.0.Beta2]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:336) [:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:293) [:]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) [:]
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:183) [:6.0.0-SNAPSHOT]
at org.jboss.web.tomcat.service.session.ClusteredSessionValve.handleRequest(ClusteredSessionValve.java:135) [:6.0.0-SNAPSHOT]
at org.jboss.web.tomcat.service.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:94) [:6.0.0-SNAPSHOT]
at org.jboss.web.tomcat.service.session.JvmRouteValve.invoke(JvmRouteValve.java:88) [:6.0.0-SNAPSHOT]
at org.jboss.web.tomcat.service.session.LockingValve.invoke(LockingValve.java:62) [:6.0.0-SNAPSHOT]
at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.event(CatalinaContext.java:285) [:1.1.0.CR1]
at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.invoke(CatalinaContext.java:261) [:1.1.0.CR1]
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:95) [:6.0.0-SNAPSHOT]
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) [:6.0.0-SNAPSHOT]
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) [:6.0.0-SNAPSHOT]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) [:]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [:]
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) [:6.0.0-SNAPSHOT]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [:]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [:]
at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:504) [:]
at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:436) [:]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:951) [:]
at java.lang.Thread.run(Thread.java:619) [:1.6.0_18]