[ https://issues.jboss.org/browse/GTNPORTAL-3283?page=com.atlassian.jira.pl... ] Marek Posolda commented on GTNPORTAL-3283: ------------------------------------------ Actually this is just a minor JBoss AS issue. I think there are these possibilities how to workaround it and remove warning: 1) Comment <distributable /> in gatein.ear/portal.war/WEB-INF/web.xml . As Marko mentioned, this will work, but it would require manual step for people who would like to add clustering. So not good solution. 2) Add/uncomment configuration of web cache container in infinispan subsystem in standalone.xml . This will fix the WARN message, but it's performance killer. See https://issues.jboss.org/browse/GTNPORTAL-3137 . IMO this is not an option as well because of performance. (It's this snippet in standalone.xml . Note that it's commented just in JPP 6.1/JBoss AS 7.2.X or later, because in JBoss AS 7.1.X the configuration for the container is not in standalone.xml. It was added in JBoss AS 7.2) : {code} <!--Uncommented this if you want persistent HTTP sessions among server restarts (WARN: Performance penalty)--> <!-- <cache-container name="web" aliases="standard-session-cache" default-cache="local-web" module="org.jboss.as.clustering.web.infinispan"> <local-cache name="local-web" batching="true"> <file-store passivation="false" purge="false"/> </local-cache> </cache-container> --> {code} 3) Have a better fix in JBoss AS itself. Actually the missing configuration of web container is causing that DistributableSessionManager throws NullPointerException and it's catched and logged as WARN in method JBossContextConfig.processWebMetaData() . Then it will fallback to default Tomcat StandardManager for handling HTTP sessions. IMO the overall result is fine and WARN in server.log could be safely ignored. Only thing is that flow is little-bit strange (throwing NullPointerException and then catching is probably not the best way for handling things... -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira