Hi, I've configured 2 webapps with SSO Federated on JBoss. Configurations seems to be fine. But, I've got the error below when trying to access the index page on one of webapps. Looking for SSOManagerService on Jboss JMX Console, and there it is. Debugging the code of SSOManager class I realized that sometimes the code works and SSOManagerService is returned, but in other cases the error occurs. Has anybody any ideia??? thanks 10:14:33,968 ERROR [SSOAutoLogout] org.jboss.security.valve.SSOAutoLogout[/PocSSOApp1] javax.servlet.ServletException: java.lang.IllegalArgumentException: interface org.jboss.security.saml.SSOManagerService is not visible from class loader at org.jboss.security.valve.SSOTokenManager.invoke(SSOTokenManager.java:201) at org.jboss.security.valve.SSOAutoLogout.invoke(SSOAutoLogout.java:172) at org.jboss.security.valve.SSOFederationRouter.invoke(SSOFederationRouter.java:135) 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$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595) 10:14:33,968 ERROR [CoyoteAdapter] An exception or error occurred in the container during the request processing javax.servlet.ServletException: java.lang.IllegalArgumentException: interface org.jboss.security.saml.SSOManagerService is not visible from class loader at org.jboss.security.valve.SSOAutoLogout.invoke(SSOAutoLogout.java:178) at org.jboss.security.valve.SSOFederationRouter.invoke(SSOFederationRouter.java:135) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$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) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4122160#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...