Hi ! Server configuration: jBoss 4.2.2 GA I have an EAR with 2 EJB3 jars and 3 WARs. When Jboss starts and try to deploy the third war, I get this exception : anonymous wrote : | org.jboss.deployment.DeploymentException: Error during deploy; - nested throwable: (javax.naming.NameAlreadyBoundException) | at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:384) | at org.jboss.web.WebModule.startModule(WebModule.java:83) | at org.jboss.web.WebModule.startService(WebModule.java:61) | at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289) | at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245) | at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:597) | at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) | at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) | at org.jboss.mx.server.Invocation.invoke(Invocation.java:86) | at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) | at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) | at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978) | [...] | Caused by: javax.naming.NameAlreadyBoundException | at org.jnp.server.NamingServer.bind(NamingServer.java:144) | at org.jnp.interfaces.NamingContext.bind(NamingContext.java:591) | at org.jnp.interfaces.NamingContext.bind(NamingContext.java:552) | at org.jboss.web.AbstractWebDeployer.parseWebAppDescriptors(AbstractWebDeployer.java:495) | at org.jboss.web.AbstractWebDeployer$DescriptorParser.parseWebAppDescriptors(AbstractWebDeployer.java:878) | at org.jboss.web.tomcat.service.TomcatDeployer.performDeployInternal(TomcatDeployer.java:159) | at org.jboss.web.tomcat.service.TomcatDeployer.performDeploy(TomcatDeployer.java:104) | at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:375) | at org.jboss.web.WebModule.startModule(WebModule.java:83) | at org.jboss.web.WebModule.startService(WebModule.java:61) This happens on the 3rd war only, If I change the order of the wars deployed, it does only fail on the 3rd one. No matter which war it is. If I deploy only 2 wars it works perfectly for any combination of the 2. ??? Before all 3 wars used to deploy good when my EAR consisted of: 3 WARs and 2 EJB JAR ( but only one EJB3, the other one EJB2.1), Just recently I converted the other EJB jar to EJB3. Sinc ethen I can't deploy any 3rd WAR in my EAR. Any idea of what could be causing a problem. I see in the logs that the binding of UserTransaction is done succesfully multiple times for all the other deployment (mines and jboss's one) Thank you in advance ! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4134302#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...