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https://issues.apache.org/jira/browse/DERBY-5087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kristian Waagan updated DERBY-5087:
-----------------------------------
Attachment: derby-5087-1a-npe_on_shutdown.diff
Attaching patch 1a, which removes the possibility of the NPE.
Also removed unnecessary variable 'daemonStopped', replacing it with
'daemonDisabled' where used.
Committed to trunk with revision 1076445.
> NPE in istat daemon when encountering critical exception during shutdown
> ------------------------------------------------------------------------
>
> Key: DERBY-5087
> URL: https://issues.apache.org/jira/browse/DERBY-5087
> Project: Derby
> Issue Type: Bug
> Components: Services, Store
> Affects Versions: 10.8.0.0
> Reporter: Kristian Waagan
> Assignee: Kristian Waagan
> Priority: Minor
> Attachments: derby-5087-1a-npe_on_shutdown.diff
>
>
> If the istat daemon encounters a critical error during shutdown and the data
> dictionary module has been stopped, it will run into a NPE.
> This bug is highly timing-dependent in two ways: the data dictionary module
> must have been stopped first, and then the istat daemon must encounter a
> critical error "at the right time".
> I have seen this bug once on my laptop.
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