Description of problem: It seems that "yum update" has installed certain rpms that break RHS Console. I have a RHS Console which was installed and configured on 2012-11-12. Everything worked fine until I did a "yum update" today. The symptom is that browser shows a blank page, not even "404 Error" message. But the httpd log says "404 error". The jboss log indicates there are problems with some jboss modules/files. I rolled back all the updates and RHS Console recovered and started to work again. Here are some of the error messages from /var/log/jbossas/server.log 22:09:35,477 INFO [org.jboss.as.connector.subsystems.datasources] (ServerService Thread Pool -- 27) JBAS010403: Deploying JDBC-compliant driver class org.h2.Driver (version 1.3) 22:09:35,503 ERROR [org.jboss.as.controller.management-operation] (ServerService Thread Pool -- 27) JBAS014613: Operation ("enable") failed - address: ([ ("subsystem" => "datasources"), ("data-source" => "ENGINEDataSource") ]) - failure description: "JBAS010436: Failed to create DataSource instance for [{ \"operation\" => \"enable\", \"address\" => [ (\"subsystem\" => \"datasources\"), (\"data-source\" => \"ENGINEDataSource\") ], \"persistent\" => true }] reason: IJ010073: Invalid <security> configuration" ....... ....... ....... 22:09:45,081 WARN [org.jboss.as.dependency.private] (MSC service thread 1-2) JBAS018567: Deployment "deployment.engine.ear.restapi.war" is using a private module ("org.codehaus.jackson.jackson-mapper-asl:main") which may be changed or removed in future versions without notice. 22:09:45,370 ERROR [org.jboss.as.server.deployment] (MSC service thread 1-1) JBAS015892: Deployment unit processor org.jboss.as.web.deployment.ELExpressionFactoryProcessor@9ba0281 unexpectedly threw an exception during undeploy phase POST_MODULE of deployment "engine.ear": java.lang.NoClassDefFoundError: org/jboss/el/cache/FactoryFinderCache at org.jboss.as.web.deployment.ELExpressionFactoryProcessor.undeploy(ELExpressionFactoryProcessor.java:113) at org.jboss.as.server.deployment.DeploymentUnitPhaseService.safeUndeploy(DeploymentUnitPhaseService.java:172) [jboss-as-server.jar:7.1.3.Final-redhat-4] at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:121) [jboss-as-server.jar:7.1.3.Final-redhat-4] at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc.jar:1.0.2.GA-redhat-2] at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc.jar:1.0.2.GA-redhat-2] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [rt.jar:1.6.0_24] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) [rt.jar:1.6.0_24] at java.lang.Thread.run(Thread.java:679) [rt.jar:1.6.0_24] 22:09:45,374 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC000001: Failed to start service jboss.deployment.unit."engine.ear".POST_MODULE: org.jboss.msc.service.StartException in service jboss.deployment.unit."engine.ear".POST_MODULE: JBAS018733: Failed to process phase POST_MODULE of deployment "engine.ear" at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:123) [jboss-as-server.jar:7.1.3.Final-redhat-4] at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc.jar:1.0.2.GA-redhat-2] at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc.jar:1.0.2.GA-redhat-2] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [rt.jar:1.6.0_24] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) [rt.jar:1.6.0_24] at java.lang.Thread.run(Thread.java:679) [rt.jar:1.6.0_24] Caused by: java.lang.NoClassDefFoundError: org/jboss/el/cache/FactoryFinderCache at org.jboss.as.web.deployment.ELExpressionFactoryProcessor.deploy(ELExpressionFactoryProcessor.java:106) at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:116) [jboss-as-server.jar:7.1.3.Final-redhat-4] ... 5 more Caused by: java.lang.ClassNotFoundException: org.jboss.el.cache.FactoryFinderCache from [Module "org.jboss.as.web:main" from local module loader @7f2ad19e (roots: /usr/share/jbossas/modules)] at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190) at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468) at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456) at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:423) at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398) at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120) ... 7 more 22:09:45,591 INFO [org.jboss.as.server] (ServerService Thread Pool -- 28) JBAS018559: Deployed "engine.ear" 22:09:45,703 INFO [org.jboss.as.controller] (Controller Boot Thread) JBAS014774: Service status report JBAS014777: Services which failed to start: service jboss.deployment.unit."engine.ear".POST_MODULE: org.jboss.msc.service.StartException in service jboss.deployment.unit."engine.ear".POST_MODULE: JBAS018733: Failed to process phase POST_MODULE of deployment "engine.ear" ..... ..... .....
*** This bug has been marked as a duplicate of bug 905440 ***