124 lines
6.6 KiB
Diff
124 lines
6.6 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: Sat, 21 Jul 2018 08:25:40 -0400
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Subject: [PATCH] Add Debug Entities option to debug dupe uuid issues
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Add -Ddebug.entities=true to your JVM flags to gain more information
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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 07941c987a0c644e896f49ce217c1c625dc25014..c863fd94ee77b81aec84223588e20eed974515d6 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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@@ -76,6 +76,8 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
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public com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData; // Paper
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private CraftEntity bukkitEntity;
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+ PlayerChunkMap.EntityTracker tracker; // Paper
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+ Throwable addedToWorldStack; // Paper - entity debug
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public CraftEntity getBukkitEntity() {
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if (bukkitEntity == null) {
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bukkitEntity = CraftEntity.getEntity(world.getServer(), this);
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diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
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index 8862bbd73b627e37709d46e6aeeee70c89cbd821..4bbcd00950405a4bf3ce391b557049a3b1d4aee8 100644
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--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
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+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
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@@ -1093,6 +1093,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
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} else {
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PlayerChunkMap.EntityTracker playerchunkmap_entitytracker = new PlayerChunkMap.EntityTracker(entity, i, j, entitytypes.isDeltaTracking());
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+ entity.tracker = playerchunkmap_entitytracker; // Paper - Fast access to tracker
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this.trackedEntities.put(entity.getId(), playerchunkmap_entitytracker);
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playerchunkmap_entitytracker.track(this.world.getPlayers());
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if (entity instanceof EntityPlayer) {
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@@ -1134,7 +1135,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
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if (playerchunkmap_entitytracker1 != null) {
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playerchunkmap_entitytracker1.a();
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}
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-
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+ entity.tracker = null; // Paper - We're no longer tracked
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}
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protected void g() {
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index 54d7d0da6ee998319db2454372ca283a9d571cdb..fa095bb55c09a3b5f8ab70bcce5a03c7eb93dcfa 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -68,6 +68,7 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
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public boolean pvpMode;
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public boolean keepSpawnInMemory = true;
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public org.bukkit.generator.ChunkGenerator generator;
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+ public static final boolean DEBUG_ENTITIES = Boolean.getBoolean("debug.entities"); // Paper
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public boolean captureBlockStates = false;
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public boolean captureTreeGeneration = false;
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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 6fc0ccc029fc9d1f11f4325792977a67fa89a6c9..47c49389d5f025003a0a9876cab5eb67cabec145 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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@@ -88,6 +88,9 @@ public class WorldServer extends World implements GeneratorAccessSeed {
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public final Convertable.ConversionSession convertable;
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public final UUID uuid;
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boolean hasPhysicsEvent = true; // Paper
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+ private static Throwable getAddToWorldStackTrace(Entity entity) {
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+ return new Throwable(entity + " Added to world at " + new java.util.Date());
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+ }
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@Override public Chunk getChunkIfLoaded(int x, int z) { // Paper - this was added in world too but keeping here for NMS ABI
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return this.chunkProvider.getChunkAt(x, z, false);
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@@ -927,8 +930,28 @@ public class WorldServer extends World implements GeneratorAccessSeed {
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// CraftBukkit start
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private boolean addEntity0(Entity entity, CreatureSpawnEvent.SpawnReason spawnReason) {
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org.spigotmc.AsyncCatcher.catchOp("entity add"); // Spigot
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- if (entity.valid) { MinecraftServer.LOGGER.error("Attempted Double World add on " + entity, new Throwable()); return true; } // Paper
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+ // Paper start
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+ if (entity.valid) {
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+ MinecraftServer.LOGGER.error("Attempted Double World add on " + entity, new Throwable());
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+
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+ if (DEBUG_ENTITIES) {
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+ Throwable thr = entity.addedToWorldStack;
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+ if (thr == null) {
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+ MinecraftServer.LOGGER.error("Double add entity has no add stacktrace");
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+ } else {
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+ MinecraftServer.LOGGER.error("Double add stacktrace: ", thr);
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+ }
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+ }
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+ return true;
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+ }
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+ // Paper end
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if (entity.dead) {
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+ // Paper start
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+ if (DEBUG_ENTITIES) {
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+ new Throwable("Tried to add entity " + entity + " but it was marked as removed already").printStackTrace(); // CraftBukkit
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+ getAddToWorldStackTrace(entity).printStackTrace();
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+ }
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+ // Paper end
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// WorldServer.LOGGER.warn("Tried to add entity {} but it was marked as removed already", EntityTypes.getName(entity.getEntityType())); // CraftBukkit
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return false;
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} else if (this.isUUIDTaken(entity)) {
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@@ -1126,7 +1149,24 @@ public class WorldServer extends World implements GeneratorAccessSeed {
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}
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}
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- this.entitiesByUUID.put(entity.getUniqueID(), entity);
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+ if (DEBUG_ENTITIES) {
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+ entity.addedToWorldStack = getAddToWorldStackTrace(entity);
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+ }
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+
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+ Entity old = this.entitiesByUUID.put(entity.getUniqueID(), entity);
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+ if (old != null && old.getId() != entity.getId() && old.valid) {
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+ Logger logger = LogManager.getLogger();
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+ logger.error("Overwrote an existing entity " + old + " with " + entity);
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+ if (DEBUG_ENTITIES) {
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+ if (old.addedToWorldStack != null) {
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+ old.addedToWorldStack.printStackTrace();
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+ } else {
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+ logger.error("Oddly, the old entity was not added to the world in the normal way. Plugins?");
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+ }
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+ entity.addedToWorldStack.printStackTrace();
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+ }
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+ }
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+
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this.getChunkProvider().addEntity(entity);
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// CraftBukkit start - SPIGOT-5278
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if (entity instanceof EntityDrowned) {
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