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Date: Tue, 17 Aug 2010 07:04:16 -0400 (EDT)
From: "Yun Lee (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Commented: (DERBY-3898) Blob.setBytes differs between
 embedded and client driver when the specified length is invalid
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    [ https://issues.apache.org/jira/browse/DERBY-3898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12899372#action_12899372 ] 

Yun Lee commented on DERBY-3898:
--------------------------------

That's right, thanks, Knut.

> Blob.setBytes differs between embedded and client driver when the specified length is invalid
> ---------------------------------------------------------------------------------------------
>
>                 Key: DERBY-3898
>                 URL: https://issues.apache.org/jira/browse/DERBY-3898
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.3.3.0, 10.4.2.0, 10.5.1.1, 10.6.1.0
>            Reporter: Kristian Waagan
>            Assignee: Yun Lee
>            Priority: Minor
>             Fix For: 10.7.0.0
>
>         Attachments: derby-3898-1.patch, derby-3898-1.stat, derby-3898-testcase.patch, derby-3898-testcase.stat, Derby3898.java, enable-javame.diff, overflow.diff
>
>
> Blob.setBytes behaves differently with the embedded driver and the client driver.
> Assume a 1 byte array and a specified length of 2: Blob.setBytes(1, new byte[] {0x69}, 0, 2)
> Embedded: IndexOutOfBoundsException (from java.io.RandomAccessFile.writeBytes or System.arraycopy)
> Client: succeeds, returns insertion count 1
> The behavior should be made consistent, but what is the correct behavior?
> From the Blob.setBytes JavaDoc:
> "Writes all or part of the given byte array to the BLOB value that this Blob object represents and returns the number of bytes written. Writing starts at position pos in the BLOB  value; len bytes from the given byte array are written. The array of bytes will overwrite the existing bytes in the Blob object starting at the position pos. If the end of the Blob value is reached while writing the array of bytes, then the length of the Blob value will be increased to accomodate the extra bytes."

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