mirror of
https://github.com/PaperMC/Paper.git
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a0b8b886c8
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
CraftBukkit Changes:
d5a72960 SPIGOT-6063: ConsoleSender sending extra lines in Java 13+
Spigot Changes:
2740d5ae Rebuild patches
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 28c3a8e5c09c3998e7e0d7ac9244dc8abcc6d69d..3467603fe784aad56acfb2879783aeb89cef1abc 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 85b1187cf71760f433ea0f8b972bcc9e43dbde2a..bd7c3c32809b79218d857f9ae6b4c23220d29ea5 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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@@ -1286,6 +1287,19 @@ 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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@@ -1352,9 +1366,21 @@ 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).eJ();
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