papermc/Spigot-Server-Patches/0246-Add-Debug-Entities-option-to-debug-dupe-uuid-issues.patch
Prof-Bloodstone 42433c2626
Updated Upstream (Bukkit/CraftBukkit) (#3980)
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:
09f10fd9 SPIGOT-5950: Add PrepareSmithingEvent event

CraftBukkit Changes:
7c03d257 SPIGOT-6011: End Gateways do not work on Non-Main End Worlds
d492e363 SPIGOT-6015: Small Armor Stand doesn't drop items
5db13eea SPIGOT-5950: Add PrepareSmithingEvent event
2020-07-22 19:35:44 -04:00

123 lines
6.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 21 Jul 2018 08:25:40 -0400
Subject: [PATCH] Add Debug Entities option to debug dupe uuid issues
Add -Ddebug.entities=true to your JVM flags to gain more information
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 50f9d217494ab2823596523839d5992fc480912d..8e128fa303b345a10535630fd58442435ef1e439 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -76,6 +76,8 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
public com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData; // Paper
private CraftEntity bukkitEntity;
+ PlayerChunkMap.EntityTracker tracker; // Paper
+ Throwable addedToWorldStack; // Paper - entity debug
public CraftEntity getBukkitEntity() {
if (bukkitEntity == null) {
bukkitEntity = CraftEntity.getEntity(world.getServer(), this);
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index 4ae3e91677ecf9c2104a229b4e8b229d18b87aa4..458802dc4b1f923b159168efff0546bb731da07b 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -1093,6 +1093,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
} else {
PlayerChunkMap.EntityTracker playerchunkmap_entitytracker = new PlayerChunkMap.EntityTracker(entity, i, j, entitytypes.isDeltaTracking());
+ entity.tracker = playerchunkmap_entitytracker; // Paper - Fast access to tracker
this.trackedEntities.put(entity.getId(), playerchunkmap_entitytracker);
playerchunkmap_entitytracker.track(this.world.getPlayers());
if (entity instanceof EntityPlayer) {
@@ -1134,7 +1135,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
if (playerchunkmap_entitytracker1 != null) {
playerchunkmap_entitytracker1.a();
}
-
+ entity.tracker = null; // Paper - We're no longer tracked
}
protected void g() {
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 9c3c0a6ff57a8d1788cf6d7cd91571f4212eb701..530f204b9bcacdac127a44554e06aabac3897766 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -68,6 +68,7 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
public boolean pvpMode;
public boolean keepSpawnInMemory = true;
public org.bukkit.generator.ChunkGenerator generator;
+ public static final boolean DEBUG_ENTITIES = Boolean.getBoolean("debug.entities"); // Paper
public boolean captureBlockStates = false;
public boolean captureTreeGeneration = false;
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index 161d489604faa34245bb5c831b1ee9e6d2a83dd4..4907bfc3110dbf17a7d4ff255c04bf39697342f6 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -83,6 +83,9 @@ public class WorldServer extends World implements GeneratorAccessSeed {
public final Convertable.ConversionSession convertable;
public final UUID uuid;
boolean hasPhysicsEvent = true; // Paper
+ private static Throwable getAddToWorldStackTrace(Entity entity) {
+ return new Throwable(entity + " Added to world at " + new java.util.Date());
+ }
@Override public Chunk getChunkIfLoaded(int x, int z) { // Paper - this was added in world too but keeping here for NMS ABI
return this.chunkProvider.getChunkAt(x, z, false);
@@ -918,8 +921,28 @@ public class WorldServer extends World implements GeneratorAccessSeed {
// CraftBukkit start
private boolean addEntity0(Entity entity, CreatureSpawnEvent.SpawnReason spawnReason) {
org.spigotmc.AsyncCatcher.catchOp("entity add"); // Spigot
- if (entity.valid) { MinecraftServer.LOGGER.error("Attempted Double World add on " + entity, new Throwable()); return true; } // Paper
+ // Paper start
+ if (entity.valid) {
+ MinecraftServer.LOGGER.error("Attempted Double World add on " + entity, new Throwable());
+
+ if (DEBUG_ENTITIES) {
+ Throwable thr = entity.addedToWorldStack;
+ if (thr == null) {
+ MinecraftServer.LOGGER.error("Double add entity has no add stacktrace");
+ } else {
+ MinecraftServer.LOGGER.error("Double add stacktrace: ", thr);
+ }
+ }
+ return true;
+ }
+ // Paper end
if (entity.dead) {
+ // Paper start
+ if (DEBUG_ENTITIES) {
+ new Throwable("Tried to add entity " + entity + " but it was marked as removed already").printStackTrace(); // CraftBukkit
+ getAddToWorldStackTrace(entity).printStackTrace();
+ }
+ // Paper end
// WorldServer.LOGGER.warn("Tried to add entity {} but it was marked as removed already", EntityTypes.getName(entity.getEntityType())); // CraftBukkit
return false;
} else if (this.isUUIDTaken(entity)) {
@@ -1079,7 +1102,24 @@ public class WorldServer extends World implements GeneratorAccessSeed {
}
}
- this.entitiesByUUID.put(entity.getUniqueID(), entity);
+ if (DEBUG_ENTITIES) {
+ entity.addedToWorldStack = getAddToWorldStackTrace(entity);
+ }
+
+ Entity old = this.entitiesByUUID.put(entity.getUniqueID(), entity);
+ if (old != null && old.getId() != entity.getId() && old.valid) {
+ Logger logger = LogManager.getLogger();
+ logger.error("Overwrote an existing entity " + old + " with " + entity);
+ if (DEBUG_ENTITIES) {
+ if (old.addedToWorldStack != null) {
+ old.addedToWorldStack.printStackTrace();
+ } else {
+ logger.error("Oddly, the old entity was not added to the world in the normal way. Plugins?");
+ }
+ entity.addedToWorldStack.printStackTrace();
+ }
+ }
+
this.getChunkProvider().addEntity(entity);
// CraftBukkit start - SPIGOT-5278
if (entity instanceof EntityDrowned) {