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Date: Tue, 24 Feb 2009 06:36:04 -0800 (PST)
From: "Kristian Waagan (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Resolved: (DERBY-4061) InputStream returned from
 Blob.getBinaryStream(long, long) terminates the stream by returning 0,
 should return -1
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     [ https://issues.apache.org/jira/browse/DERBY-4061?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kristian Waagan resolved DERBY-4061.
------------------------------------

       Resolution: Fixed
    Fix Version/s: 10.4.2.1
                   10.3.3.1

Backported fix to 10.4 with revision 747393 and to 10.3 with revision 747395.

> InputStream returned from Blob.getBinaryStream(long, long) terminates the stream by returning 0, should return -1
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4061
>                 URL: https://issues.apache.org/jira/browse/DERBY-4061
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.3.3.0, 10.4.2.0, 10.5.0.0
>            Reporter: Trejkaz
>            Assignee: Kristian Waagan
>             Fix For: 10.3.3.1, 10.4.2.1, 10.5.0.0
>
>         Attachments: derby-4061-1a.diff, derby-4061-1b.diff
>
>
> Take the following code to copy a sub-stream from a BLOB:
> Blob blob = rs.getBlob(1);
> InputStream stream = blob.getBinaryStream(1000, 2000);
> try {
>   IOUtils.copy(stream, out);
> } finally {
>   stream.close();
> }
> This will loop forever in IOUtils.copy, as the InputStream is returning 0 at end of stream instead of -1.  It probably should return -1 to comply with the Javadoc for InputStream.
> Notes:
> I have not yet checked Blob.getBinaryStream(), or any of the Clob methods, or the client driver.  So some of these may have a similar issue.

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