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http://jira.jboss.com/jira/browse/JBAS-4178?page=comments#action_12356993 ]
Remy Maucherat commented on JBAS-4178:
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I posted an email on this earlier this month, so I think this issue should be closed:
I looked at what it was used for (supporting run-as when running the servlet's init
and destroy methods), and there's no easy way to do it without this thing. I said it
was unsupported since the impl of this capability hasn't changed since 4.0, I had
forgotten it existed, and I am not aware of anyone else using it either. Since it works, I
suppose it can be supported again :)
It is easy to disable usage of the listener in JBoss, BTW, and IMO it should be removed
before performance testing (although the sync/clone is removed - which is good since the
listener is there by default -, it will still generate tons of garbage objects which
can't really be optimized away).
RunAsListener uses unsupported implementation
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Key: JBAS-4178
URL:
http://jira.jboss.com/jira/browse/JBAS-4178
Project: JBoss Application Server
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: Security
Affects Versions: JBossAS-4.0.5.GA
Reporter: Ryan Campbell
Assigned To: Anil Saldhana
Priority: Critical
Fix For: JBossAS-4.0.5.SP1 , JBossAS-4.2.0.GA, JBossAS-5.0.0.Beta3
Class org.jboss.web.tomcat.security.RunAsListener is an implementation of
InstanceListener interface used for establishment of run-as role for servlet init/destroy
events. According to tomcat developers, InstanceListener interface is meant for debugging
purposes only and is causing some performace degradations.
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