Knut Anders Hatlen created DERBY-6440:
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Summary: Connections opened by ForeignTableVTI never get released
Key: DERBY-6440
URL: https://issues.apache.org/jira/browse/DERBY-6440
Project: Derby
Issue Type: Bug
Components: Tools
Affects Versions: 10.11.0.0
Reporter: Knut Anders Hatlen
I noticed during a run of suites.All that one database instance never got
garbage collected, even after it had been shut down. It turned out it could not
get garbage collected because it was still referenced from the static HashMap
_connections in ForeignTableVTI. Looking closer at ForeignTableVTI, it looks as
if it only calls put() and get() on the HashMap, never remove(), so its memory
footprint will keep increasing as it is used.
It would be good to have some way (preferably automatic) of releasing the
resources held by ForeignTableVTI when they are no longer needed.
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