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From "Mike Matrigali (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-2141) BlobClob4BlobTest.testPositionBlob() fails with NullPointerException
Date Thu, 10 May 2007 18:15:15 GMT

     [ https://issues.apache.org/jira/browse/DERBY-2141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mike Matrigali updated DERBY-2141:
----------------------------------


As you point out, performance of close may not be much of an issue.  I was taking the leap
that there may be more problems
with OverflowInputStream than close.  I am just not sure if it is our job or the calling code
to fix them.  Should we prevent a 
client jdbc app from calling any interface on a single OverflowInputStream from 2 threads
at the same time (for example read)?  

Also  I don't understand the issue enough, does this fix have to happen in BaseContainerHandle?
 It seems reasonable to add
extra synchronization to OverflowInputStream as we hand that out of the jdbc layer to direct
callers, but if we start changing  the
classes only indirectly called I think we may not know where to stop.

> BlobClob4BlobTest.testPositionBlob() fails with NullPointerException
> --------------------------------------------------------------------
>
>                 Key: DERBY-2141
>                 URL: https://issues.apache.org/jira/browse/DERBY-2141
>             Project: Derby
>          Issue Type: Bug
>          Components: Regression Test Failure
>    Affects Versions: 10.3.0.0
>         Environment: Java SE 6, Java SE 5.0 (less frequently). Linux and Solaris.
>            Reporter: Knut Anders Hatlen
>         Attachments: stacktrace.diff
>
>
> Seen in the nightly regression tests:
> http://dbtg.thresher.com/derby/test/Daily/jvm1.6/testing/testlog/lin/481811-org.apache.derbyTesting.functionTests.suites.All_diff.txt
> http://dbtg.thresher.com/derby/test/Daily/jvm1.6/testing/testlog/lin/480626-org.apache.derbyTesting.functionTests.suites.All_diff.txt

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