TextComponentString text = new TextComponentString("Succefully teleported you to a random location.");
    text.getStyle().setColor(TextFormatting.GREEN);
    MinecraftServer serverf = FMLCommonHandler.instance().getMinecraftServerInstance();
    World world = getCommandSenderAsPlayer(sender).getEntityWorld();
    WorldBorder border = world.getWorldBorder();
    EntityPlayerMP player = getCommandSenderAsPlayer(sender);
    Random r = new Random();
    int low = 10000;
    int high = border.getSize() - 10;
    int result = r.nextInt(high-low) + low;
    server.getCommandManager().executeCommand(serverf, "spreadplayers " + border.getCenterX() + " " + border.getCenterZ() + " 1000" + " " + result + " false " + player.getDisplayNameString());
    player.sendMessage(text);