My InventoryClickEvent is called twice per click?

When i press a button in my gui, the message that is supposed to say "Test" is run twice when i press the button only once.

Code:

            ArrayList<UUID> testArray = new ArrayList<>();
public void openFirstPage(InventoryClickEvent e) {
    Player player = (Player) e.getWhoClicked();
    if (!e.getInventory().getName().equalsIgnoreCase("§8§lTest")) {
        return;
    }

if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Test")) {
                event.setCancelled(true);
                player.closeInventory();
                if (player.hasPermission("test.test")) {
                    test.add(player.getUniqueId());
                }
                else {
                    player.sendMessage("Test");
                }
            }
}

 

@EssentialsPissesMeOff
Do you register the event twice?

Use a delay to make sure it doesn't fire twice.

 

Technically speaking, i have my InventoryClickEvent, and in this event method i have 2 other methods for 2 different pages of my gui, but i cant really see how this would conflict with each other.

Code:

    @EventHandler
    public void onInvClick(InventoryClickEvent e) {
        openFirstPage(e);
        openSecondPage(e);
    }

as for the reason i did that, not really sure, i guess just so its more organized.

 

@EssentialsPissesMeOff
How can you open two pages at the same time?

 

nothing is triggering the onInvClick method to run, or even the openFirstPage/openSecondPage, it's only the contents within it that is being used separately from the whole method its a part of, so when i open one of the gui's, i dont think anything could cause it so both guis open at the same time.