[ http://jira.jboss.com/jira/browse/JBAS-1599?page=history ]
Darran updated JBAS-1599:
-------------------------
Attachment: AbstractInstancePool-patch.txt
StatelessSessionEnterpriseContext-patch.txt
Attached are two patches for this issue.
'AbstractInstancePool-patch.txt' - This contains the required changes to return
the permit if creation of a new bean instance fails.
While investigating this problem I saw that if a CreateException is thrown by
the bean the CreateException is thrown directly back to the client which
results in the client catching a 'java.rmi.UnexpectedException' the file
'StatelessSessionEnterpriseContext-patch.txt' contains changes that wrap any
checked exceptions with an EJBException as well as the runtime exceptions that
were already wrapped. The result of this is that if the bean throws a
CreateException or a RuntimeException the client will allways see a
ServerException. We already know that the bean can only throw valid checked
exceptions as this will have been validated on deployment.
> EJB Pools Strict Maximum Pool Permits Leak
> ------------------------------------------
>
> Key: JBAS-1599
> URL: http://jira.jboss.com/jira/browse/JBAS-1599
> Project: JBoss Application Server
> Type: Bug
> Components: EJBs
> Versions: JBossAS-4.0.2 Final, JBossAS-4.0.2RC1
> Environment: All
> Reporter: Darran
> Attachments: AbstractInstancePool-patch.txt,
> StatelessSessionEnterpriseContext-patch.txt, StrictMaximumTest.zip
>
>
> When the EJB pools are configured with 'strictMaximumSize' set to true, if an
> Exception is thrown from the ejbCreate method of the bean being created to
> service the request the permit is not returned before the Exception is thrown
> to the calling client.
> If this keeps happening till all permits are exhausted the clients will start
> to get the error: -
> 'Failed to acquire the pool semaphore' thrown as an EJBException from the get
> method of the AbstractInstancePool.
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