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From Deepa Remesh <drem...@gmail.com>
Subject [PATCH] for test jdbcapi/characterStreams.java
Date Tue, 15 Nov 2005 16:48:05 GMT
I am attaching a patch for the test jdbcapi/characterStreams.java,
which fails in J2ME with the following error:
ERROR X0X95: Operation 'DROP INDEX' cannot be performed on object
'SQL051115082553360' because there is an open ResultSet dependent on
that object.
	at org.apache.derby.iapi.error.StandardException.newException(StandardException.java:322)
	at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.verifyNoOpenResultSets(GenericLanguageConnectionContext.java:1696)
	at org.apache.derby.impl.sql.GenericPreparedStatement.prepareToInvalidate(GenericPreparedStatement.java:712)
	at org.apache.derby.impl.sql.depend.BasicDependencyManager.coreInvalidateFor(BasicDependencyManager.java:379)
	at org.apache.derby.impl.sql.depend.BasicDependencyManager.invalidateFor(BasicDependencyManager.java:224)
	at org.apache.derby.impl.sql.execute.DropIndexConstantAction.dropIndex(DropIndexConstantAction.java:214)
	at org.apache.derby.impl.sql.execute.DropConstraintConstantAction.dropConstraintAndIndex(DropConstraintConstantAction.java:316)
	at org.apache.derby.impl.sql.execute.DropTableConstantAction.dropAllConstraintDescriptors(DropTableConstantAction.java:346)
	at org.apache.derby.impl.sql.execute.DropTableConstantAction.executeConstantAction(DropTableConstantAction.java:219)
	at org.apache.derby.impl.sql.execute.MiscResultSet.open(MiscResultSet.java:56)
	at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:368)
	at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1142)
	at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:550)
	at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(EmbedStatement.java:158)
	at org.apache.derbyTesting.functionTests.tests.jdbcapi.characterStreams.main(characterStreams.java:68)

The patch adds a line to close the result set before exiting
'setStreams' method. With the patch, I ran this test successfully with
Sun JDK 1.4.2 (all 3 frameworks) and j9_foundation in IBM WCTME 5.7.

I was trying to see why this test was working in J2SE without the
rs.close(). I am thinking this is because the result set object gets
garbage collected and automatically closed when the method
'setStreams' exits. But in J2ME, garbage collection does not occur
immediately, hence a result set object remains open and drop operation
fails. It would be great if someone can take a look and commit this
patch.

Thanks,
Deepa

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