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2f34301581
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: 7361a62e SPIGOT-5641: Add Block.getDrops(ItemStack, Entity) 1dc91b15 Add specific notes about what is not API 2b05ef88 #484: Allow statistics to be accessed for offline players CraftBukkit Changes:f7d6ad53SPIGOT-5603: Use LootContext#lootingModifier in CraftLootTable5838285dSPIGOT-5657: BlockPlaceEvent not cancelling for tripwire hooksf325b9beSPIGOT-5641: Add Block.getDrops(ItemStack, Entity)e25a2272Fix some formatting in CraftHumanEntity498540e0Add Merchant slot delegateb2de47d5SPIGOT-5621: Add missing container types for opening InventoryViewaa3a2f27#645: Allow statistics to be accessed for offline players2122c0b1#649: CraftBell should implement Bell
83 lines
3.6 KiB
Diff
83 lines
3.6 KiB
Diff
From 76dfeec0aa423c46709031d9cf9b2985d4fe5cd8 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 3d1d93a8b4..862a64b6fd 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 5ba46fca55..23527809ce 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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@@ -520,6 +520,7 @@ public class WorldServer extends World {
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try (co.aikar.timings.Timing ignored = this.timings.newEntities.startTiming()) { // Paper - timings
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while ((entity = (Entity) this.entitiesToAdd.poll()) != null) {
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+ if (!entity.isQueuedForRegister) continue; // Paper - ignore cancelled registers
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this.registerEntity(entity);
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}
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} // Paper - timings
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@@ -1329,6 +1330,19 @@ public class WorldServer extends World {
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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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@@ -1390,9 +1404,21 @@ public class WorldServer extends World {
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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).eo();
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--
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2.25.1
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