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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-3422) Embedded returns wrong value for DatabaseMetaData.autoCommitFailureClosesAllResultSets()
Date Fri, 15 Feb 2008 14:54:08 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Knut Anders Hatlen updated DERBY-3422:
--------------------------------------

    Attachment: test.diff

Attaching a patch which updates the test so that it exposes the bug. Instead of calling isClosed(),
it calls ResultSet.next() and checks whether an exception with SQL state XCL16 is thrown.
With this change, the test fails on embedded and passes on the client.

> Embedded returns wrong value for DatabaseMetaData.autoCommitFailureClosesAllResultSets()
> ----------------------------------------------------------------------------------------
>
>                 Key: DERBY-3422
>                 URL: https://issues.apache.org/jira/browse/DERBY-3422
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.4.0.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Knut Anders Hatlen
>            Priority: Minor
>         Attachments: test.diff
>
>
> DatabaseMetaData.autoCommitFailureClosesAllResultSets() returns false both on the client
and on embedded. However, the embedded driver does in fact close all open result sets when
an error occurs in auto-commit mode. There is a test case in jdbc4.TestDbMetaData to test
this (testAutoCommitFailure), but it only uses ResultSet.isClosed() to check whether or not
the result set is closed after the failure. Because of DERBY-3404, isClosed() returns false
for the result sets that have been closed because of the failure, so the test doesn't reveal
the bug. If the test is changed to invoke methods on the result set (e.g. next()) instead
of calling isClosed(), we'll see that the result set is in fact closed and get an SQLException
with SQL state XCL16.

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