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Date: Thu, 8 Jul 2010 22:17:50 -0400 (EDT)
From: "Yun Lee (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Closed: (DERBY-4738) correct error prompt for nonpositive
 length in Blob.setBytesX()
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     [ https://issues.apache.org/jira/browse/DERBY-4738?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yun Lee closed DERBY-4738.
--------------------------


Thanks, Knut. Before I attached the patch, I just run BlobAccessTest and it passed. I will run regression tests for a extensive test next time. Thanks for your advice.

I agree with your patch on moving the declaration of the length variable. More work need to be done on this method, just pointed out in Derby-3898. 


> correct error prompt for nonpositive length in Blob.setBytesX()
> ---------------------------------------------------------------
>
>                 Key: DERBY-4738
>                 URL: https://issues.apache.org/jira/browse/DERBY-4738
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.7.0.0
>            Reporter: Yun Lee
>            Assignee: Yun Lee
>             Fix For: 10.7.0.0
>
>         Attachments: derby-4738.patch, derby-4738.stat, init_length.diff
>
>
> In Blob.setBytesX(), when a nonpositive length value (len) is passed in, a SqlException with ClientMessageId of SQLState.BLOB_NONPOSITIVE_LENGTH is created, however, it uses length, a wrong length value, which is still zero here.
> if ( len < 0 ) {
>             throw new SqlException(agent_.logWriter_,
>                 new ClientMessageId(SQLState.BLOB_NONPOSITIVE_LENGTH),
>                 new Integer(length));
>         }

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