EntityListener:



    @Override
    public void onEntityDamage(EntityDamageEvent event) {
        if (!(event instanceof EntityDamageByEntityEvent)) {
            return;
        }
        EntityDamageByEntityEvent e = (EntityDamageByEntityEvent) event;
        if (e.getEntity() instanceof Player) {
            final Player player = (Player) e.getEntity();
            al.battleStatus.put(player, Boolean.TRUE);
            if (!al.taskID.containsKey(player)) {
                return;
            }
            int prevTaskId = al.taskID.get(player);
            if (prevTaskId != -1) {
                Bukkit.getScheduler().cancelTask(prevTaskId);
            }
            //Schedule the battle timer
            int taskId = Bukkit.getScheduler().scheduleSyncDelayedTask(al, new Runnable() {
                public void run() {
                    al.battleStatus.put(player, Boolean.FALSE);
                    al.taskID.put(player, -1);
                }
            }, 200L); //Approx 10 seconds
            al.taskID.put(player, taskId);
        }
        if (e.getDamager() instanceof Player) {
            final Player player = (Player) e.getDamager();
            al.battleStatus.put(player, Boolean.TRUE);
            if (!al.taskID.containsKey(player)) {
                return;
            }
            int prevTaskId = al.taskID.get(player);
            if (prevTaskId != -1) {
                Bukkit.getScheduler().cancelTask(prevTaskId);
            }
            //Schedule the battle timer
            int taskId = Bukkit.getScheduler().scheduleSyncDelayedTask(al, new Runnable() {

                public void run() {
                    al.battleStatus.put(player, Boolean.FALSE);
                    al.taskID.put(player, -1);
                }
            }, 200L); //Approx 10 seconds
            al.taskID.put(player, taskId);
        }
    }
}