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https://issues.apache.org/jira/browse/DERBY-4443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13010546#comment-13010546
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Bryan Pendleton commented on DERBY-4443:
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I think that the suggestion I made in an earlier comment, about including the
lines
dvr.stop();
dvr.boot(false, null);
was not good advice. Those lines are what is causing your current NPE.
I removed the calls to dvr.stop() and dvr.boot() from the setUp() method of
the test, and I get much further.
Can you try making that change in your copy, and see if that gets you further?
> Wrap rollback in exception handlers in try-catch
> ------------------------------------------------
>
> Key: DERBY-4443
> URL: https://issues.apache.org/jira/browse/DERBY-4443
> Project: Derby
> Issue Type: Bug
> Components: Demos/Scripts, Documentation, Eclipse Plug-in, JDBC,
> Network Client, Network Server, Replication, Services, SQL, Test, Tools
> Affects Versions: 10.5.3.0
> Reporter: Aaron Digulla
> Labels: derby_triage10_8
> Attachments: DERBY-4443-1.patch, DERBY-4443-2.patch, DERBY-4443.patch
>
>
> Avoid this pattern everywhere:
> }catch(SQLException se){
> //issue a rollback on any errors
> conn.rollback();
> throw se;
> }
> because an error in rollback will shadow the original exception.
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