Ensure that cleanup() puts the Language ResultSet objects in usable state in
case an exception is raised
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Key: DERBY-3459
URL: https://issues.apache.org/jira/browse/DERBY-3459
Project: Derby
Issue Type: Task
Components: JDBC
Affects Versions: 10.3.1.4, 10.4.0.0
Reporter: Mamta A. Satoor
DERBY-827 made changes so that Language ResultSets do not get thrown away after
every execution.
But now that ResultSet gets used over and over, we need to make sure that in
case of an exception, the ResultSet gets cleaned up properly for next
execution. I noticed that we definitley do not do any cleanup for
CallableStatementResultSet. The cleanup() method inside
CallableStatementResultSet is empty. At the least, we should be calling close()
method inside of cleanup() for CallableStatementResultSet. There might be other
Language ResultSets that also require cleanup. I wonder if all the Language
ResultSets can simply rely on the close() method to do whatever cleanup work
that might be required during exception and we can probably simply get rid of
cleanup() method. I haven't done enough investigation to know if that is the
path we should go.
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