automsg.java

List<String> automsgs = getConfig().getStringList("automessages");
	
Random r = new Random();

public void onEnable() {
    Bukkit.getScheduler().scheduleSyncRepeatingTask(this, new Runnable() {
        public void run() {
	    if(!(Bukkit.getOnlinePlayers().size() <= 1)) {
	        String msg = ChatColor.translateAlternateColorCodes('&', automsgs.get(r.nextInt(automsgs.size())));
		Bukkit.broadcastMessage(msg);
	    }
	}
    }, 0, 1000);
}