[jira] Closed: (DERBY-3307) NPE in PooledConnction event notification handling if a null listener is added

["Kristian Waagan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-3307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kristian Waagan closed DERBY-3307.
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I verified the fix in trunk by running the repro after removing the code change in CPC. It fails with the code removed, and succeeds with the code in place.

Thank you Knut Anders!

> 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
>            Assignee: Knut Anders Hatlen
>            Priority: Minor
>             Fix For: 10.4.1.4, 10.5.0.0
>
>         Attachments: d3307.diff, 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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