private static void sendUnicastStableMessages(JChannel ... channels) {
for(JChannel ch: channels) {
UNICAST2 unicast=(UNICAST2)ch.getProtocolStack().findProtocol(UNICAST2.class);
if(unicast != null)
unicast.sendStableMessages();
}
}
private void createChannels(boolean copy_multicasts, boolean copy_unicasts, int num_outgoing_copies, int num_incoming_copies) throws Exception {