Move drop and clear logic into the backpack class

src/at/pcgamingfreaks/Minepacks/Bukkit/API/Backpack.java

@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2016 GeorgH93
+ *   Copyright (C) 2016, 2017 GeorgH93
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -17,6 +17,7 @@
 
 package at.pcgamingfreaks.Minepacks.Bukkit.API;
 
+import org.bukkit.Location;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.InventoryHolder;
@@ -77,4 +78,16 @@ public interface Backpack extends InventoryHolder
 	 * Forces the backpack to be saved
 	 */
 	void save();
+
+	/**
+	 * Removes all items from the backpack.
+	 */
+	void clear();
+
+	/**
+	 * Drops the content of the backpack to the ground on a given location.
+	 *
+	 * @param location The location the content of the backpack should be dropped to.
+	 */
+	void drop(Location location);
 }

src/at/pcgamingfreaks/Minepacks/Bukkit/Backpack.java

@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2016 GeorgH93
+ *   Copyright (C) 2016, 2017 GeorgH93
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -21,6 +21,7 @@
 import at.pcgamingfreaks.StringUtils;
 
 import org.bukkit.Bukkit;
+import org.bukkit.Location;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
@@ -225,4 +226,25 @@ public void save()
 			hasChanged = false;
 		}
 	}
+
+	@Override
+	public void clear()
+	{
+		bp.clear();
+		setChanged();
+		save();
+	}
+
+	@Override
+	public void drop(Location location)
+	{
+		for(ItemStack i : bp.getContents())
+		{
+			if(i != null)
+			{
+				location.getWorld().dropItemNaturally(location, i);
+			}
+		}
+		clear();
+	}
 }

src/at/pcgamingfreaks/Minepacks/Bukkit/Commands/OnCommand.java

@@ -155,8 +155,7 @@ public void onResult(Backpack backpack)
 							{
 								if(backpack != null)
 								{
-									backpack.getInventory().clear();
+									backpack.clear();
-									backpack.save();
 									messageBackpackCleaned.send(player);
 								}
 								else

src/at/pcgamingfreaks/Minepacks/Bukkit/Listener/DropOnDeath.java

@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2016 GeorgH93
+ *   Copyright (C) 2016, 2017 GeorgH93
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -22,12 +22,9 @@
 import at.pcgamingfreaks.Minepacks.Bukkit.Minepacks;
 
 import org.bukkit.Location;
-import org.bukkit.World;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.entity.PlayerDeathEvent;
-import org.bukkit.inventory.Inventory;
-import org.bukkit.inventory.ItemStack;
 
 public class DropOnDeath extends MinepacksListener
 {
@@ -42,24 +39,13 @@ public void onDeath(PlayerDeathEvent event)
 		final Player player = event.getEntity();
 		if (!player.hasPermission("backpack.keepOnDeath"))
 		{
-			final World world = player.getWorld();
 			final Location location = player.getLocation();
 			plugin.getBackpack(player, new Callback<Backpack>()
 			{
 				@Override
 				public void onResult(Backpack backpack)
 				{
-					Inventory backpackInventory = backpack.getInventory();
+					backpack.drop(location);
-					for(ItemStack i : backpackInventory.getContents())
-					{
-						if(i != null)
-						{
-							world.dropItemNaturally(location, i);
-							backpackInventory.remove(i);
-							backpack.setChanged();
-						}
-					}
-					backpack.save();
 				}
 
 				@Override