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From "Kathey Marsden (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-4521) Stream passed out to user does not heed close, allowing reads after next ResultSet#getXXX
Date Wed, 17 Aug 2011 19:33:27 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13086531#comment-13086531
] 

Kathey Marsden commented on DERBY-4521:
---------------------------------------

Labeled derby_backport_reject_10_8. Since it is a behavior change prohibiting an operation,
probably not suitable for a maintenance release.

> Stream passed out to user does not heed close, allowing reads after next ResultSet#getXXX
> -----------------------------------------------------------------------------------------
>
>                 Key: DERBY-4521
>                 URL: https://issues.apache.org/jira/browse/DERBY-4521
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.0.2.0, 10.0.2.1, 10.1.1.0, 10.1.2.1, 10.1.3.1, 10.2.1.6, 10.2.2.0,
10.3.1.4, 10.3.2.1, 10.3.3.0, 10.4.1.3, 10.4.2.0, 10.5.1.1, 10.5.2.0, 10.5.3.0, 10.6.1.0,
10.6.2.1, 10.7.1.1
>            Reporter: Dag H. Wanvik
>            Priority: Minor
>              Labels: derby_backport_reject_10_8, derby_triage10_8
>             Fix For: 10.9.0.0
>
>         Attachments: repro.diff
>
>
> This was discovered investigating DERBY-4477 using the repro for DERBY-3646, which erroneously
> tries to keep two streams passed out via REsultSet#getBinaryStream open at the same time.
This is prohibited by JDBC [1],
> but Derby allows it for non-materialized streams because the close call on the passed
out stream (performed by EmbedResultSet#closeCurrentStream at the time of the next getXXX)
is not heed by the underlying Derby stream. 
> [1] http://java.sun.com/j2se/1.5.0/docs/api/java/sql/ResultSet.html#getBinaryStream(int)

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