ab347c4c96
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: 42d5a714 SPIGOT-5899: Hoglins API similar to Piglins 2c1ee10e SPIGOT-5887: ClickType doesn't include off hand swaps 5ff7c7ce SPIGOT-5886: Missing BlockData CraftBukkit Changes: 7560f5f5 SPIGOT-5905: Fix hex colours not being allowed in MOTD d47c47ee SPIGOT-5889: Villager using composter should call EntityChangeBlockEvent 2fe6b4a3 SPIGOT-5899: Hoglins API similar to Piglins e09dbeca SPIGOT-5887: ClickType doesn't include off hand swaps 23aac2a5 SPIGOT-5903: EntityDismountEvent cannot be triggered asynchronously 92cbf656 SPIGOT-5884: Tab completions lost on reloadData / minecraft:reload fb4e54ad SPIGOT-5902: PlayerRespawnEvent places player at spawn before event is called aa8f3d5a SPIGOT-5901: Structures are generated in all worlds based on the setting for the main world a0c35937 SPIGOT-5895: PlayerChangedWorldEvent#getFrom is incorrect 89c0a5c3 SPIGOT-5886: Missing BlockData Spigot Changes: 0287a20d SPIGOT-5903: EntityDismountEvent cannot be triggered asynchronously
80 lines
3.7 KiB
Diff
80 lines
3.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sun, 29 Mar 2020 18:26:14 -0400
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Subject: [PATCH] Ensure Entity is never double registered
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If something calls register twice, and the world is ticking, it could be
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enqueued to add twice.
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Vs behavior of non ticking of just overwriting state.
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We will now simply log a warning when this happens instead of crashing the server.
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diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
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index c49d157b8ca25f9811bf64396c207b1c1d6e085d..e895bf811ce5d441541725ade48e3f07ca86fc2b 100644
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--- a/src/main/java/net/minecraft/server/Entity.java
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+++ b/src/main/java/net/minecraft/server/Entity.java
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@@ -59,6 +59,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
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}
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// Paper start
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+ boolean isQueuedForRegister = false;
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public static Random SHARED_RANDOM = new Random() {
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private boolean locked = false;
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@Override
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diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
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index 7426c800002560bc5534aa3f683068fb2dcb7898..ceeefe7ac6b0dcdb96a8939e0d1ba543161aba57 100644
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--- a/src/main/java/net/minecraft/server/WorldServer.java
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+++ b/src/main/java/net/minecraft/server/WorldServer.java
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@@ -531,6 +531,7 @@ public class WorldServer extends World implements GeneratorAccessSeed {
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Entity entity2;
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while ((entity2 = (Entity) this.entitiesToAdd.poll()) != null) {
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+ if (!entity2.isQueuedForRegister) continue; // Paper - ignore cancelled registers
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this.registerEntity(entity2);
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}
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@@ -1227,6 +1228,19 @@ public class WorldServer extends World implements GeneratorAccessSeed {
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public void unregisterEntity(Entity entity) {
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org.spigotmc.AsyncCatcher.catchOp("entity unregister"); // Spigot
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+ // Paper start - fix entity registration issues
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+ if (entity instanceof EntityComplexPart) {
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+ // Usually this is a no-op for complex parts, and ID's should be removed, but go ahead and remove it anyways
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+ // Dragon parts are handled special in register. they don't receive a valid = true or register by UUID etc.
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+ this.entitiesById.remove(entity.getId(), entity);
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+ return;
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+ }
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+ if (!entity.valid) {
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+ // Someone called remove before we ever got added, cancel the add.
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+ entity.isQueuedForRegister = false;
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+ return;
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+ }
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+ // Paper end
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// Spigot start
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if ( entity instanceof EntityHuman )
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{
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@@ -1293,9 +1307,21 @@ public class WorldServer extends World implements GeneratorAccessSeed {
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private void registerEntity(Entity entity) {
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org.spigotmc.AsyncCatcher.catchOp("entity register"); // Spigot
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+ // Paper start - don't double enqueue entity registration
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+ //noinspection ObjectEquality
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+ if (this.entitiesById.get(entity.getId()) == entity) {
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+ LOGGER.error(entity + " was already registered!");
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+ new Throwable().printStackTrace();
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+ return;
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+ }
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+ // Paper end
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if (this.tickingEntities) {
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- this.entitiesToAdd.add(entity);
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+ if (!entity.isQueuedForRegister) { // Paper
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+ this.entitiesToAdd.add(entity);
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+ entity.isQueuedForRegister = true; // Paper
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+ }
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} else {
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+ entity.isQueuedForRegister = false; // Paper
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this.entitiesById.put(entity.getId(), entity);
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if (entity instanceof EntityEnderDragon) {
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EntityComplexPart[] aentitycomplexpart = ((EntityEnderDragon) entity).eK();
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