[CTJUG Forum] JBoss throwing InstanceAlreadyExistsException ... when it doesn't!

[Fritz Meissner]

Hi all,

I am attempting to deploy an EJB3 module to JBoss v4.04GA. As soon as I copy it into server/default/deploy, it spews forth exceptions which boil down to:

ObjectName: jboss.j2ee:module=CSDCMusic-ejb.jar ,uid=19587772,service=EJB3
  State: FAILED
  Reason: java.lang.RuntimeException: javax.management.InstanceAlreadyExistsException: persistence.units:jar=CSDCMusic-ejb.jar,unitName=CSDCMusic-ejb already registered.

On deleting the ejb3-jar, I get this:

424 WARN  [ServiceController] Ignoring request to destroy nonexistent service: persistence.units:jar=CSDCMusic-ejb.jar,unitName=CSDCMusic-ejb

Which seems to me to indicate that it doesn't know that the EJB module exists because it didn't deploy properly because it thought the module already existed, because it didn't undeploy properly the last time because it didn't know that the module existed because.... etc

I have tried shutting down JBoss, looking for rogue processes, and rebooting (twice). Nothing seems to work. Is there a place that JBoss stores module names that won't get cleared after all that? How do I get JBoss to forget everything it's ever known?

Regards,
Fritz



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