Paper/CraftBukkit-Patches/0094-Guard-Entity-List.patch
2014-11-28 15:01:21 -06:00

80 lines
2.8 KiB
Diff

From 37911f5c7eacd81e8c81158a396fe8f6f154ada9 Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Mon, 10 Mar 2014 09:03:28 +1100
Subject: [PATCH] Guard Entity List
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index a35ec3f..703b919 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -33,7 +33,32 @@ import org.bukkit.event.weather.ThunderChangeEvent;
public abstract class World implements IBlockAccess {
protected boolean e;
- public final List entityList = Lists.newArrayList();
+ // Spigot start - guard entity list from removals
+ public List entityList = new java.util.ArrayList()
+ {
+ @Override
+ public Object remove(int index)
+ {
+ guard();
+ return super.remove( index );
+ }
+
+ @Override
+ public boolean remove(Object o)
+ {
+ guard();
+ return super.remove( o );
+ }
+
+ private void guard()
+ {
+ if ( guardEntityList )
+ {
+ throw new java.util.ConcurrentModificationException();
+ }
+ }
+ };
+ // Spigot end
protected final List g = Lists.newArrayList();
public final List h = Lists.newArrayList();
public final List tileEntityList = Lists.newArrayList();
@@ -88,6 +113,7 @@ public abstract class World implements IBlockAccess {
private int tickPosition;
// Spigot start
+ private boolean guardEntityList;
protected final gnu.trove.map.hash.TLongShortHashMap chunkTickList;
protected float growthOdds = 100;
protected float modifiedOdds = 100;
@@ -1280,6 +1306,7 @@ public abstract class World implements IBlockAccess {
org.spigotmc.ActivationRange.activateEntities(this); // Spigot
timings.entityTick.startTiming(); // Spigot
+ guardEntityList = true; // Spigot
// CraftBukkit start - Use field for loop variable
for (this.tickPosition = 0; this.tickPosition < this.entityList.size(); ++this.tickPosition) {
entity = (Entity) this.entityList.get(this.tickPosition);
@@ -1316,12 +1343,15 @@ public abstract class World implements IBlockAccess {
this.getChunkAt(j, k).b(entity);
}
+ guardEntityList = false; // Spigot
this.entityList.remove(this.tickPosition--); // CraftBukkit - Use field for loop variable
+ guardEntityList = true; // Spigot
this.b(entity);
}
this.methodProfiler.b();
}
+ guardEntityList = false; // Spigot
timings.entityTick.stopTiming(); // Spigot
this.methodProfiler.c("blockEntities");
--
2.1.0