Solved Weird gui menu glitch

So I've made my gui menu, BUT the weirdest thing is happening. If I open up my gui and click AROUND the actual inventory I get tons of null pointer exceptions. Here's my code, what's happening wrong?

Code:

@EventHandler
public void OnInventoryClick(InventoryClickEvent e) {
 
if (!e.getInventory().equals(inv)) {
return;
}
 
if (e.getWhoClicked() instanceof Player) {
Player p = (Player) e.getWhoClicked();
 
switch (e.getCurrentItem().getType()) {
case APPLE:
p.setGameMode(GameMode.CREATIVE);
p.closeInventory();
break;
case CARROT
p.setGameMode(GameMode.SURVIVAL);
p.closeInventory();
break;
default:
p.closeInventory();
break;
}
}
}

 

1. Calibor...Malte? ;D
2. e.getCurrentItem() > Check if it is null first, othwise return. That's the once I can find for a Null-Pointer.

 

PreFiXAUT already figured it out but thanks anyways

 

Then please add a solution for Codes which might have the same problem and searched for this error and came up on this thread and/or please mark the Thread as Solved (Thread-Options > Edit Thread > Prefix (lol) > Solved)