I found a GeronimoMappedName in the EJB deployment chain, and it will configure the mapped name for some of jndi staff. Seems that mapped name is used to configured server specified jndi name, but I did not find the configured jndi:java:comp/geronimo/env/ namespace in Geronimo JNDI tree now (>From the history, it seems that that tree is created in the EJBDeploymentGBean in the past). I am wondering that do we still require it ? As it will configure the resource refer to an nonexisting place.