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From "David Jencks (JIRA)" <j...@apache.org>
Subject [jira] Closed: (GERONIMO-2491) Hibernate passes connections between servlets which we don't support
Date Mon, 26 Mar 2007 03:12:32 GMT

     [ https://issues.apache.org/jira/browse/GERONIMO-2491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

David Jencks closed GERONIMO-2491.
----------------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 2.0-M2)
                   2.0-M4
                   1.2
         Assignee: David Jencks  (was: Jeff Genender)

Peter Petersson has succeeded in running Roller on geronimo 1.2(-SNAPSHOT) so I think we can
conclude we have fixed this.  c.f. GERONIMO-2994.

> Hibernate passes connections between servlets which we don't support
> --------------------------------------------------------------------
>
>                 Key: GERONIMO-2491
>                 URL: https://issues.apache.org/jira/browse/GERONIMO-2491
>             Project: Geronimo
>          Issue Type: Bug
>      Security Level: public(Regular issues) 
>          Components: connector
>    Affects Versions: 1.1.1, 1.2
>            Reporter: David Jencks
>         Assigned To: David Jencks
>             Fix For: 1.2, 2.0-M4
>
>
> This is based on examination of roller running in geronimo-tomcat and is partly speculation.
 There's certainly  a problem.
> 1. request sets InstanceContext 1 in ConnectionTrackingCoordinator.
> 2. roller starts a persistence context (in hibernate jargon a session) in a servlet filter.
 No connection is opened yet
> 3. tiles dispatches to a jsp
> 4. dispatch sets InstanceContext 2 in CTC
> 5. jsp does something persistent causing hibernate to open a db connection.  This is
registered with IC 2.
> 6. jsp dispatch returns, so IC 1 is set in CTC
> 7. roller commits the persistence context in the servlet filter, which closes the connection.
 Closing the connection attempts to unregister from the current IC.  IC 1 doesn't know anything
about this connection..... we get an NPE.
> The solution isn't clear to me at the moment.  

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