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119ae29b37
See https://github.com/PaperMC/Paper/issues/1223 Should fix Vanilla bugs Minecraft is saving invalid entities to the chunk files. Avoid saving bad data, and also make improvements to handle loading these chunks. Any invalid entity will be instant killed, so lets avoid adding it to the world... This lets us be safer about the dupe UUID resolver too, as now we can ignore instant killed entities and avoid risk of duplicating an invalid entity. This should reduce log occurrences of dupe uuid messages. Also reduce the logging spam overall.
93 lines
No EOL
4.5 KiB
Diff
93 lines
No EOL
4.5 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 99dac412f0..0d3af8cb77 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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@@ -0,0 +0,0 @@ public abstract class Entity implements ICommandListener, KeyedObject { // Paper
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}
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return bukkitEntity;
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}
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+ Throwable addedToWorldStack; // Paper - entity debug
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// CraftBukikt end
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private static final Logger a = LogManager.getLogger();
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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 b16324e1a2..994d4bbb84 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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@@ -0,0 +0,0 @@ import com.google.common.util.concurrent.ListenableFuture;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.Collection;
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+import java.util.Date;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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@@ -0,0 +0,0 @@ public class WorldServer extends World implements IAsyncTaskHandler {
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private final List<NextTickListEntry> W = Lists.newArrayList();
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// CraftBukkit start
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+ private static final boolean DEBUG_ENTITIES = Boolean.getBoolean("debug.entities"); // Paper
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+ private static Throwable getAddToWorldStackTrace(Entity entity) {
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+ return new Throwable(entity + " Added to world at " + new Date());
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+ }
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public final int dimension;
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// Add env and gen to constructor
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@@ -0,0 +0,0 @@ public class WorldServer extends World implements IAsyncTaskHandler {
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private boolean j(Entity entity) {
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if (entity.dead) {
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WorldServer.a.warn("Tried to add entity {} but it was marked as removed already", EntityTypes.a(entity)); // CraftBukkit // Paper
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+ if (DEBUG_ENTITIES) getAddToWorldStackTrace(entity).printStackTrace();
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return false;
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} else {
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UUID uuid = entity.getUniqueID();
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@@ -0,0 +0,0 @@ public class WorldServer extends World implements IAsyncTaskHandler {
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this.f.remove(entity1);
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} else {
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if (!(entity instanceof EntityHuman)) {
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- WorldServer.a.error("Keeping entity {} that already exists with UUID {} - " + entity1, EntityTypes.a(entity1), uuid.toString()); // CraftBukkit // Paper
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+ WorldServer.a.error("Keeping entity {} that already exists with UUID {}", entity1, uuid.toString()); // CraftBukkit // Paper
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WorldServer.a.error("Deleting duplicate entity {}", entity); // Paper
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+ if (DEBUG_ENTITIES) {
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+ if (entity1.addedToWorldStack != null) {
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+ entity1.addedToWorldStack.printStackTrace();
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+ }
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+ getAddToWorldStackTrace(entity).printStackTrace();
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+ }
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return false;
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}
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@@ -0,0 +0,0 @@ public class WorldServer extends World implements IAsyncTaskHandler {
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protected void b(Entity entity) {
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super.b(entity);
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this.entitiesById.a(entity.getId(), entity);
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- this.entitiesByUUID.put(entity.getUniqueID(), entity);
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+ // Paper start
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+ if (DEBUG_ENTITIES) {
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+ entity.addedToWorldStack = getAddToWorldStackTrace(entity);
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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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+ // Paper end
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Entity[] aentity = entity.bb();
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if (aentity != null) {
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--
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