PaperMC/Spigot-Server-Patches/0266-Fix-CraftEntity-hashCode.patch
Shane Freeder f4e3b4e439
Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appears 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:
5b680f0b Note maximum objective score length in documentation

CraftBukkit Changes:
5932f8a7 Load default world spawn areas in consistent order
3a5dc78f Fix confusing migration message appearing on fresh server
516a408f Remove redundant CraftBukkit change for secondary world data
73a2c749 Process conversation input on the main thread.
100c3f07 Cap Objective Score Length
6e842759 Cross World Entity Teleportation
7deba1c6 Check for blank OfflinePlayer Names
f2746a5e Descriptive kick reasons instead of Nope!
b0212308 Cap Channel Registrations
a610dcd8 Identify CraftScheduler threads with useful names

Spigot Changes:
19c3c5a5 Rebuild patches
2019-01-06 17:15:21 +00:00

49 lines
1.9 KiB
Diff

From a8aaa82fc8fca58ee9cab877c23dbb674f02d44b 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 8b0f530ba..633cf7b30 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -542,14 +542,15 @@ 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
}
public void setMetadata(String metadataKey, MetadataValue newMetadataValue) {
--
2.20.1