[ http://issues.apache.org/jira/browse/DERBY-787?page=all ]
Andreas Korneliussen closed DERBY-787:
--------------------------------------
Resolution: Fixed
> cursor closed as a sideeffect of closing another cursor with the same name on
> another connection
> ------------------------------------------------------------------------------------------------
>
> Key: DERBY-787
> URL: http://issues.apache.org/jira/browse/DERBY-787
> Project: Derby
> Type: Bug
> Components: SQL
> Versions: 10.1.2.1, 10.2.0.0
> Environment: Java 1.4
> Reporter: Andreas Korneliussen
> Assignee: Andreas Korneliussen
> Fix For: 10.2.0.0
> Attachments: CursorIsClosedIssue.java, DERBY-787.diff, DERBY-787.stat,
> derbyall_report.txt
>
> I was writing some tests for the Scrollable updatable ResultSet feature, and
> found some tests failing with
> ERROR XCL07: Cursor 'SQLCUR0' is closed. Verify that autocommit is OFF.
> in ResultSet.updateRow().
> The test does the following:
> 1. set up a connection, and run a query which selects one tuple
> 2. update the tuple using updateXXX and updateRow
> 3. rollback the transaction and close the connection
> Then, repeat the process, however this time use a different string in the
> query. This time updateRow() may fail with the error above.
> The problem has been reproduced on forward only, updatable resultsets.
> Workaround:
> It does not seem to fail if I
> a, set another cursorname on the statement object,
> b, use the same query string.
> I will attach the program to reproduce the problem. Below is the output:
> ~:/<3>db-derby-10.1.2.1-bin/lib> java -cp
> /home/ak136785/devel/derbytesting/derbytest/build/classes/:derby.jar
> derbytest.CursorIsClosedIssue
> 1,1,19,Tuple 1
> 2,2,21,Tuple 2
> ERROR XCL07: Cursor 'SQLCUR0' is closed. Verify that autocommit is OFF.
> at org.apache.derby.iapi.error.StandardException.newException(Unknown
> Source)
> at
> org.apache.derby.impl.sql.execute.CurrentOfResultSet.getCursor(Unknown Source)
> at
> org.apache.derby.impl.sql.execute.CurrentOfResultSet.openCore(Unknown Source)
> at
> org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.openCore(Unknown
> Source)
> at
> org.apache.derby.impl.sql.execute.NormalizeResultSet.openCore(Unknown Source)
> at org.apache.derby.impl.sql.execute.UpdateResultSet.setup(Unknown
> Source)
> at org.apache.derby.impl.sql.execute.UpdateResultSet.open(Unknown
> Source)
> at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown
> Source)
> at org.apache.derby.impl.jdbc.EmbedResultSet.updateRow(Unknown Source)
> at derbytest.CursorIsClosedIssue.runTest(CursorIsClosedIssue.java:80)
> at derbytest.CursorIsClosedIssue.main(CursorIsClosedIssue.java:103)
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