Paper/patches/server/0204-Fix-CraftEntity-hashCode.patch
Nassim Jahnke f6969b6374
Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
09b1c123 PR-916: Add more lightning API
c085f3de PR-859: Add Entity#getTrackedBy

CraftBukkit Changes:
1bf30a4e9 SPIGOT-7495: Spawning bee entity in asynchronous BlockPopulator causes IllegalStateException - Accessing LegacyRandomSource from multiple threads
476c5bccd PR-1267: Add more lightning API
40d5e6c02 PR-1190: Add Entity#getTrackedBy
40d41acc1 SPIGOT-7491: Downgrade bundled SQLite to be updated next release
44b31da38 PR-1264: Load Bukkit class before creating Registry item
dc45a6738 SPIGOT-7496: Failure to load datapacks with multiple identical predicates
f508657d6 Fix decompile error affecting javac
ef7a4743d PR-1265: Ensure UTF-8 used in new test resource

Spigot Changes:
224dad51 Rebuild patches
2023-10-03 22:00:24 +10:00

47 lines
1.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 10 Jun 2018 20:20:15 -0400
Subject: [PATCH] Fix CraftEntity hashCode
hashCodes are not allowed to change, however bukkit used a value
that does change, the entityId.
When an entity is teleported dimensions, the entity reference is
replaced with a new one with a new entity ID.
For hashCode, we can simply use the UUID's hashCode to keep
the hashCode from changing.
equals() is ok to use getEntityId() because equals() should only
be true if both the left and right are the same reference.
Since entity ids can not duplicate during runtime, this
check is essentially the same as this.getHandle() == other.getHandle()
However, replaced it too to make it clearer of intent.
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
index 714a8fb1715751038c411ea7f2f0cf37ee41abd8..5e9642662716a0e60a700e6359539339f1cf5230 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -840,14 +840,15 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
return false;
}
final CraftEntity other = (CraftEntity) obj;
- return (this.getEntityId() == other.getEntityId());
+ return (this.getHandle() == other.getHandle()); // Paper - while logically the same, this is clearer
}
+ // Paper - Fix hashCode. entity ID's are not static.
+ // A CraftEntity can change reference to a new entity with a new ID, and hash codes should never change
@Override
public int hashCode() {
- int hash = 7;
- hash = 29 * hash + this.getEntityId();
- return hash;
+ return getUniqueId().hashCode();
+ // Paper end
}
@Override