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https://issues.apache.org/jira/browse/DERBY-4856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rick Hillegas updated DERBY-4856:
---------------------------------

    Attachment: releaseNote.html

Adjust the release note.

> Add thread dump information when derby crash
> --------------------------------------------
>
>                 Key: DERBY-4856
>                 URL: https://issues.apache.org/jira/browse/DERBY-4856
>             Project: Derby
>          Issue Type: Bug
>          Components: Services
>            Reporter: Lily Wei
>            Assignee: Lily Wei
>            Priority: Minor
>             Fix For: 10.8.0.0
>
>         Attachments: ContextManager.java, DERBY-4856-part_1_1a.diff, 
> DERBY-4856_part_2_2a.diff, DERBY-4856_part_2_2b.diff, 
> DERBY-4856_part_3_1a.diff, DERBY-4856_part_3_2a.diff, 
> DERBY-4856_part_3_3a.diff, DERBY-4856_part_3_3b.diff, 
> DERBY-4856_part_3_3c.diff, DERBY-4856_part_3_3d.diff, 
> DERBY-4856_part_3_3e.diff, DERBY-4856_part_3_3g.diff, 
> DERBY-4856_part_3_3g_1a.diff, DERBY-4856_part_3_3g_2a.diff, corruptdb.zip, 
> derby-4856-1a.diff, derby.log, releaseNote.html, releaseNote.html, 
> releaseNote.html, releaseNote.html, releaseNote.html, releaseNote.html
>
>
> On system crash or session ending error, Derby should dump as much 
> information as possible. Such as: forcing a javacore if possible or at least 
> thread dump and system environment information. This should only occur if a 
> running session crashes not on boot error due to fail recovery etc.
> The IBM jvm provides a way to programmatically dump a javacore. i.e. 
> com.ibm.jvm.Dump.JavaDump() And, the SUN jvm will force a thread dump using 
> the Unsafe class and there may be a better way. 

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