Hi,

I have two separate webapps that use the same EJB. The EJB jar file is packaged 
and deployed with each app as part of its EAR.

If I deploy the applications separately to different servers they work fine, 
but if I try to deploy them to the same server I get an exception:

org.jboss.deployment.DeploymentException: Trying to install an already 
registered mbean

I am suprised by this because I was under the impression that everything 
associated with an EAR is supposed to be isolated from other EARs, even as far 
as using different classloaders.

I realize that I could deploy the EJB separately from the two applications but 
this is not what I'd prefer. The applications are otherwise unrelated to one 
another and I want them to be self-contained so that someone else can decide 
where to deploy them without worrying about an external dependency. I also want 
it to be possible for one to be using a different version of the EJB without 
impacting the other.

Is this a common problem, and if so, how should I deal with it?

Thanks.

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