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https://issues.apache.org/jira/browse/GERONIMO-4350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12638652#action_12638652
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Dain Sundstrom commented on GERONIMO-4350:
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I'm not sure I understand the problem. IIRC, a spec-compliant RA is required
to list all interfaces that are needed by calling code (so we know what to add
to the proxy).
Anyway, if this is something we want/need to support, I can this of a few
workarounds/solutions (listed in order of difficulty for Geronimo):
1) add a getDelegate method one of the interfaces like JDBC and JPA use
2) add a flag to turn of connection GC
3) rewrite the connection pool code to use weak references for garbage detection
Option 3 is the most reliable but a lot more work.
> Connection proxying to imitate DissociatableManagedConnection can easily
> cause problems
> ---------------------------------------------------------------------------------------
>
> Key: GERONIMO-4350
> URL: https://issues.apache.org/jira/browse/GERONIMO-4350
> Project: Geronimo
> Issue Type: Bug
> Security Level: public(Regular issues)
> Components: connector
> Affects Versions: 2.1, 2.2
> Reporter: David Jencks
> Assignee: Dain Sundstrom
> Fix For: 2.1.4, 2.2
>
>
> We have some code to imitate the DissociatableManagedConnection to avoid
> connection leaks that proxies connections from the supplied
> ManagedConnectionFactory: the proxy implements all the interfaces of the
> connection, but not the class itself. However, there's nothing stopping the
> ConnectionFactory from casting the (now proxied) connection to the
> implementation class it expects.
> The TxConnect project at sourceforge illustrates this approach in the
> EisConnectionFactory.
> http://txconnect.sourceforge.net
> One possible solution would be to have a flag to turn on this proxying
> behavior. I don't immediately see a way to detect if the problem will occur.
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