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https://issues.apache.org/jira/browse/DERBY-3307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12601915#action_12601915
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Kristian Waagan commented on DERBY-3307:
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Note that the existing repro ('derby-3307-1a-test_repro.diff') only tests the
statement event listener case, which has already been fixed (see DERBY-3695).
Another repro / test should be written for a connection event listener.
> NPE in PooledConnction event notification handling if a null listener is added
> ------------------------------------------------------------------------------
>
> Key: DERBY-3307
> URL: https://issues.apache.org/jira/browse/DERBY-3307
> Project: Derby
> Issue Type: Bug
> Components: JDBC
> Affects Versions: 10.3.2.1, 10.4.1.3
> Reporter: Kristian Waagan
> Priority: Minor
> Attachments: derby-3307-1a-test_repro.diff
>
>
> If a null reference is passed in to one of the
> ClientPooledConnection.addXEventListener, a NPE will be thrown if an event
> occurs.
> I will attach a simple repro as a patch to the test
> jdbc4.StatementEventsTests. I believe the situation is the same for
> connection event listeners.
> I have found no information in the specs regarding null listeners, but I
> assume it would be okay to ignore them.
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