[JBJCA-1118] Add a system property to disable enlistment traces
[JBJCA-1112] DataSource marked as Serializable
Add trace to validateConnections
Fix test cases
Fix checkstyle warnings
Next is IronJacamar 1.1.3.Final
[JBJCA-1121] RetryableException ignored in getTransactionNewConnection
[JBJCA-1122] Revert JBJCA-1112
[JBJCA-1123] ManagedConnectionPoolStatistics not correctly enabled at init