BTreeController.reclaim_deleted_rows() may hide exceptions
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Key: DERBY-3911
URL: https://issues.apache.org/jira/browse/DERBY-3911
Project: Derby
Issue Type: Bug
Components: Store
Affects Versions: 10.5.0.0
Reporter: Knut Anders Hatlen
Priority: Minor
BTreeController.reclaim_deleted_rows() contains this piece of code:
catch (java.lang.ClassCastException cce)
{
// because we give up the latch on the leaf before entering this
// routine, the page might change from a leaf to branch. If that
// happens this routine will get a ClassCastException, and we
// just give up trying to reclaim space.
}
finally
{
if (controlRow != null)
controlRow.release();
return(purged_at_least_one_row);
}
It intentionally hides ClassCastExceptions, but it also unintentionally hides
all other exceptions because of the return statement in the finally clause.
Some related discussions can be found in DERBY-3216 and DERBY-3905.
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