[JBJCA-1197][BZ#1120892] prefill does not work for the last connection url when HA Datasource failover is enabled
[JBJCA-1198] Use-strict-min shouldn't be considered for non-prefill pools
[JBJCA-1199] Guard against ISE in TransactionSynchronizer
[JBJCA-1200] CachedConnectionManager should only lock if needed
[JBJCA-1199] Use AltKey as fallback