Doesn't happened systematically...
Jboss is creating a temporarly topic.
2007-02-07 16:37:37,625 WARN [org.jboss.ejb3.mdb.MDB] Could not find the topic destination-jndi-name=topic/NXPMessages
2007-02-07 16:37:37,626 WARN [org.jboss.ejb3.mdb.MDB] destination not found: topic/NXPMessages reason: javax.naming.NameNotFoundException: NXPMessages not bound
2007-02-07 16:37:37,626 WARN [org.jboss.ejb3.mdb.MDB] creating a new temporary destination: topic/NXPMessages
[..]
2007-02-07 16:37:58,761 DEBUG [org.jboss.deployment.SARDeployer] Deploying SAR, create step: url file:/opt/jboss/server/default/deploy/nuxeo.ear/nxevents.sar
2007-02-07 16:37:58,762 DEBUG [org.jboss.deployment.SARDeployer] create operation failed for package file:/opt/jboss/server/default/deploy/nuxeo.ear/nxevents.sar
org.jboss.deployment.DeploymentException: Trying to install an already registered mbean: jboss.mq.destination:service=Topic,name=NXPMessages
at org.jboss.system.ServiceCreator.install(ServiceCreator.java:103)
at org.jboss.system.ServiceConfigurator.internalInstall(ServiceConfigurator.java:449)
at org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:171)
at org.jboss.system.ServiceController.install(ServiceController.java:226)
at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source)
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: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.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy4.install(Unknown Source)
at org.jboss.deployment.SARDeployer.create(SARDeployer.java:249)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:953)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:807)
at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source)
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:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
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:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy15.deploy(Unknown Source)
[...]