Hi everybody, i basically have no idea what's happening here (see Stacktrace below). Has anybody the same problem? What could case this exception? Thanks and kind regards, Gigi ---------------------------------------- 2008-06-30 15:09:53,843 ERROR [org.apache.tomcat.util.modeler.BaseModelMBean] Exception invoking method addChild java.lang.IllegalArgumentException: addChild: Child name '' is not unique at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:781) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525) 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.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:297) at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668) at org.apache.catalina.core.StandardContext.init(StandardContext.java:5357) at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeployInternal(TomcatDeployment.java:346) at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeploy(TomcatDeployment.java:142) at org.jboss.web.deployers.AbstractWarDeployment.start(AbstractWarDeployment.java:347) at org.jboss.web.deployers.WebModule.startModule(WebModule.java:89) at org.jboss.web.deployers.WebModule.start(WebModule.java:67) 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:157) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96) 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:668) at org.jboss.system.microcontainer.ServiceProxy.invoke(ServiceProxy.java:184) at $Proxy5.start(Unknown Source) at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:42) at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:37) at org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextAction.java:62) at org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:71) at org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51) at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:327) at org.jboss.system.microcontainer.ServiceControllerContext.install(ServiceControllerContext.java:255) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1309) at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:734) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:862) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:784) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:622) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:411) at org.jboss.system.ServiceController.doChange(ServiceController.java:659) at org.jboss.system.ServiceController.start(ServiceController.java:431) at org.jboss.system.deployers.ServiceDeployer.start(ServiceDeployer.java:150) at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:108) at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:46) at org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalDeploy(AbstractSimpleRealDeployer.java:65) at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50) at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:169) at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:853) at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:874) at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:794) at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:327) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1309) at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:734) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:862) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:784) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:622) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:411) at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:498) at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:506) at org.jboss.system.server.profileservice.ProfileServiceBootstrap.loadProfile(ProfileServiceBootstrap.java:246) at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:131) at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:408) at org.jboss.Main.boot(Main.java:208) at org.jboss.Main$1.run(Main.java:534) at java.lang.Thread.run(Thread.java:595) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4161509#... 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