From 39ee708b553595bfa92409a62c6e4ef8654295c2 Mon Sep 17 00:00:00 2001
From: Daniel Saukel <sa.da@unitybox.de>
Date: Sat, 11 Apr 2020 02:17:01 +0200
Subject: [PATCH] Add missing player instance check; resolves #754

---
 .../java/de/erethon/dungeonsxl/api/player/PlayerCache.java     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/api/src/main/java/de/erethon/dungeonsxl/api/player/PlayerCache.java b/api/src/main/java/de/erethon/dungeonsxl/api/player/PlayerCache.java
index 38d60f34..c9049db2 100644
--- a/api/src/main/java/de/erethon/dungeonsxl/api/player/PlayerCache.java
+++ b/api/src/main/java/de/erethon/dungeonsxl/api/player/PlayerCache.java
@@ -148,6 +148,9 @@ public class PlayerCache extends Registry<Player, GlobalPlayer> {
     public Collection<GamePlayer> getAllGamePlayersIf(Predicate<GamePlayer> predicate) {
         Collection<GamePlayer> checked = new ArrayList<>();
         for (GlobalPlayer element : elements.values()) {
+            if (!(element instanceof GamePlayer)) {
+                continue;
+            }
             GamePlayer gamePlayer = (GamePlayer) element;
             if (predicate.test(gamePlayer)) {
                 checked.add(gamePlayer);