From efced89eb1b6910ec24ca297ef3d71aae7234573 Mon Sep 17 00:00:00 2001
From: Eric <biederteric.eb@gmail.com>
Date: Sun, 30 Jul 2017 17:58:56 +0200
Subject: [PATCH] Fixed ConcurrentModificationException (again)

---
 src/main/java/de/epiceric/shopchest/ShopChest.java       | 3 +--
 src/main/java/de/epiceric/shopchest/utils/ShopUtils.java | 4 ++--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/main/java/de/epiceric/shopchest/ShopChest.java b/src/main/java/de/epiceric/shopchest/ShopChest.java
index d17d8cc..2a1b9fa 100644
--- a/src/main/java/de/epiceric/shopchest/ShopChest.java
+++ b/src/main/java/de/epiceric/shopchest/ShopChest.java
@@ -205,8 +205,7 @@ public class ShopChest extends JavaPlugin {
 
         if (database != null) {
             for (Shop shop : shopUtils.getShops()) {
-                shop.removeHologram();
-                shop.removeItem();
+                shopUtils.removeShop(shop, false);
                 debug("Removed shop (#" + shop.getID() + ")");
             }
 
diff --git a/src/main/java/de/epiceric/shopchest/utils/ShopUtils.java b/src/main/java/de/epiceric/shopchest/utils/ShopUtils.java
index 40c4cb4..9b78364 100644
--- a/src/main/java/de/epiceric/shopchest/utils/ShopUtils.java
+++ b/src/main/java/de/epiceric/shopchest/utils/ShopUtils.java
@@ -13,6 +13,7 @@ import org.bukkit.inventory.InventoryHolder;
 import org.bukkit.permissions.PermissionAttachmentInfo;
 import org.bukkit.util.Vector;
 
+import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
@@ -23,7 +24,6 @@ import java.util.UUID;
 public class ShopUtils {
 
     private final HashMap<Location, Shop> shopLocation = new HashMap<>();
-    private final Collection<Shop> shopLocationValues = Collections.unmodifiableCollection(shopLocation.values());
     private final HashMap<UUID, Location> playerLocation = new HashMap<>();
     private final ShopChest plugin;
 
@@ -58,7 +58,7 @@ public class ShopUtils {
      * @return Read-only collection of all shops, may contain duplicates
      */
     public Collection<Shop> getShops() {
-        return shopLocationValues;
+        return Collections.unmodifiableCollection(new ArrayList<>(shopLocation.values()));
     }
 
     /**