/**
* Notify JoinGroupEvents for currently active nodes in replication group.
*/
private void notifyJoinGroupEventsForActiveNodes(ReplicationGroup group) {
NodeStateProtocol stateProtocol =
new NodeStateProtocol(group.getName(),
NameIdPair.NOCHECK,
null);
for (ReplicationNode repNode : group.getElectableNodes()) {
/* Send out a NodeState request message for this electable node. */
MessageExchange me = stateProtocol.new MessageExchange