PaperMC/Spigot-Server-Patches/0244-Replace-HashSet-with-fastutil-s-ObjectOpenHashSet-in.patch
Aikar 094bb03a37
Optimize Hoppers
- Lots of itemstack cloning removed. Only clone if the item is actually moved
- Return true when a plugin cancels inventory move item event instead of false, as false causes pulls to cycle through all items.
  However, pushes do not exhibit the same behavior, so this is not something plugins could of been relying on.
- Add option (Default on) to cooldown hoppers when they fail to move an item due to full inventory
- Skip subsequent InventoryMoveItemEvents if a plugin does not use the item after first event fire for an iteration
2018-02-12 23:26:02 -05:00

30 lines
1.4 KiB
Diff

From bddc88554209cb2f0a14e9539f07da19fa11ad18 Mon Sep 17 00:00:00 2001
From: Brokkonaut <hannos17@gmx.de>
Date: Fri, 20 Oct 2017 04:33:45 +0200
Subject: [PATCH] Replace HashSet with fastutil's ObjectOpenHashSet in
HashTreeSet
HashSet sometimes uses compareTo() instead of equals() and this breaks the comparison of net.minecraft.server.NextTickListEntry (the only place where HashTreeSet is used).
In this cases duplicate entries could be added to the HashSet of HashTreeSet, because NextTickListEntry.compareTo() does not return 0, even if NextTickListEntry.equals() returns true.
ObjectOpenHashSet never uses compareTo(), so the inconsistencies of NextTickListEntry cause no problems.
Fixes https://github.com/PaperMC/Paper/issues/588
diff --git a/src/main/java/org/bukkit/craftbukkit/util/HashTreeSet.java b/src/main/java/org/bukkit/craftbukkit/util/HashTreeSet.java
index 80a5c29f3..cd864c404 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/HashTreeSet.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/HashTreeSet.java
@@ -8,7 +8,7 @@ import java.util.TreeSet;
public class HashTreeSet<V> implements Set<V> {
- private HashSet<V> hash = new HashSet<V>();
+ private Set<V> hash = new it.unimi.dsi.fastutil.objects.ObjectOpenHashSet<V>(); //Paper - Replace java.util.HashSet with ObjectOpenHashSet
private TreeSet<V> tree = new TreeSet<V>();
public HashTreeSet() {
--
2.16.1