if (plugin == null)
{
try
{
ValidatingManagedConnectionFactory vmcf = (ValidatingManagedConnectionFactory)mcf;
Set connectionSet = new HashSet(1);
connectionSet.add(recoverMC);
Set invalid = vmcf.getInvalidConnections(connectionSet);
if (invalid != null && invalid.size() > 0)
{
log.debugf("Invalid managed connection: %s", recoverMC);