B0M PR0V3IT0

                        new BukkitRunnable(){
                                for(Player online : Bukkit.getOnlinePlayers()){
                                Location loc = online.getLocation();
                                double t = 0;
                                double r = 2;
                                public void run(){
                                        t = t + Math.PI/16;
                                        double x = r*cos(t);
                                        double z = r*sin(t);
                                        loc.add(x, y, z);
                                        ParticleEffect.DRIP_WATER.display(loc, 0, 0, 0, 0, 1);
                                        loc.subtract(x, 0, z);
                                if (t > Math.PI*8){
                                        this.cancel();
                                }
                                }
                                }
                        }.runTaskTimer(plugin, 0, 1);