Hibernate passes connections between servlets which we don't support
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Key: GERONIMO-2491
URL: http://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: 1.1.2, 1.2
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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