You can trick somehow the problem of automatic creation, by creating the instance on the first received call.
<<There are only solutions !>>
unfortunately,i can't decide which call is the first call in my program.
Not sure if this answers your question, but could you not create a stateless session bean for this? It could read information into local variables upon creation (i.e. from configuration files etc).
Isn't there a properties stateless session bean in jboss that solves the same problem for configurations?