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https://issues.apache.org/jira/browse/DERBY-4093?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kristian Waagan resolved DERBY-4093.
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Resolution: Fixed
Fix Version/s: 10.5.0.0
Committed patch 1b to trunk with revision 753239.
Keeping the issue open for a while to handle any problems and address comments.
> Improve handling of the database temporary directory
> ----------------------------------------------------
>
> Key: DERBY-4093
> URL: https://issues.apache.org/jira/browse/DERBY-4093
> Project: Derby
> Issue Type: Sub-task
> Components: Store
> Affects Versions: 10.5.0.0
> Reporter: Kristian Waagan
> Assignee: Kristian Waagan
> Fix For: 10.5.0.0
>
> Attachments: derby-4093-1a-tmp_dir_handling.diff,
> derby-4093-1b-tmp_dir_handling.diff
>
>
> The problem reported by Knut Anders Hatlen in DERBY-646 is caused by improper
> handling of the temporary directory created for the database.
> A NullPointerException was thrown on database shutdown.
> After studying the code, I believe it is wise to follow the approach taken by
> the base storage factory;
> o locate the temporary directory within the database directory
> (i.e. for database 'mydb' this will by 'mydb/tmp')
> o don't create the temporary directory before Derby supplies a unique name
> to the storage factory
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