papermc/Spigot-Server-Patches/0254-Add-Debug-Entities-option-to-debug-dupe-uuid-issues.patch

126 lines
6.5 KiB
Diff

From 25dd8434749412dffeb0e19d91868e66355c0f78 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 6ada923797..9241874139 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -75,6 +75,8 @@ 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 e6c55d87b4..6379d2d84f 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -1014,6 +1014,7 @@ 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) {
@@ -1056,7 +1057,7 @@ 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 e780f7af40..627fec10a8 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 IIBlockAccess, GeneratorAccess, AutoClose
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 d8c49d95e1..97049aba9d 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -72,6 +72,9 @@ public class WorldServer extends World {
// CraftBukkit start
private int tickPosition;
boolean hasPhysicsEvent = true; // Paper
+ private static Throwable getAddToWorldStackTrace(Entity entity) {
+ return new Throwable(entity + " Added to world at " + new java.util.Date());
+ }
// Add env and gen to constructor
public WorldServer(MinecraftServer minecraftserver, Executor executor, WorldNBTStorage worldnbtstorage, WorldData worlddata, DimensionManager dimensionmanager, GameProfilerFiller gameprofilerfiller, WorldLoadListener worldloadlistener, org.bukkit.World.Environment env, org.bukkit.generator.ChunkGenerator gen) {
@@ -940,8 +943,28 @@ public class WorldServer extends World {
// 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)) {
@@ -1107,7 +1130,24 @@ public class WorldServer extends World {
}
}
- 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);
if (entity instanceof EntityInsentient) {
this.H.add(((EntityInsentient) entity).getNavigation());
--
2.22.0