Paper/Spigot-Server-Patches/0535-Fix-AdvancementDataPlayer-leak-due-from-quitting-ear.patch
Aikar 976c6d425b
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2021-05-02 15:37:24 -04:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <spottedleaf@spottedleaf.dev>
Date: Mon, 13 Jul 2020 06:22:54 -0700
Subject: [PATCH] Fix AdvancementDataPlayer leak due from quitting early in
login
Move the criterion storage to the AdvancementDataPlayer object
itself, so the criterion object stores no references - and thus
needs no cleanup.
diff --git a/src/main/java/net/minecraft/advancements/critereon/CriterionTriggerAbstract.java b/src/main/java/net/minecraft/advancements/critereon/CriterionTriggerAbstract.java
index c2ee816af000f0c94782d704e6372cd93fd34bb3..c6388223daa26b200dc16cd562bcef19a5a59c8f 100644
--- a/src/main/java/net/minecraft/advancements/critereon/CriterionTriggerAbstract.java
+++ b/src/main/java/net/minecraft/advancements/critereon/CriterionTriggerAbstract.java
@@ -16,25 +16,25 @@ import net.minecraft.world.level.storage.loot.LootTableInfo;
public abstract class CriterionTriggerAbstract<T extends CriterionInstanceAbstract> implements CriterionTrigger<T> {
- private final Map<AdvancementDataPlayer, Set<CriterionTrigger.a<T>>> a = Maps.newIdentityHashMap();
+ //private final Map<AdvancementDataPlayer, Set<CriterionTrigger.a<T>>> a = Maps.newIdentityHashMap(); // Paper - moved into AdvancementDataPlayer to fix memory leak
public CriterionTriggerAbstract() {}
@Override
public final void a(AdvancementDataPlayer advancementdataplayer, CriterionTrigger.a<T> criteriontrigger_a) {
- ((Set) this.a.computeIfAbsent(advancementdataplayer, (advancementdataplayer1) -> {
+ (advancementdataplayer.criterionData.computeIfAbsent(this, (advancementdataplayer1) -> { // Paper - fix AdvancementDataPlayer leak
return Sets.newHashSet();
})).add(criteriontrigger_a);
}
@Override
public final void b(AdvancementDataPlayer advancementdataplayer, CriterionTrigger.a<T> criteriontrigger_a) {
- Set<CriterionTrigger.a<T>> set = (Set) this.a.get(advancementdataplayer);
+ Set<CriterionTrigger.a<T>> set = (Set) advancementdataplayer.criterionData.get(this); // Paper - fix AdvancementDataPlayer leak
if (set != null) {
set.remove(criteriontrigger_a);
if (set.isEmpty()) {
- this.a.remove(advancementdataplayer);
+ advancementdataplayer.criterionData.remove(this); // Paper - fix AdvancementDataPlayer leak
}
}
@@ -42,7 +42,7 @@ public abstract class CriterionTriggerAbstract<T extends CriterionInstanceAbstra
@Override
public final void a(AdvancementDataPlayer advancementdataplayer) {
- this.a.remove(advancementdataplayer);
+ advancementdataplayer.criterionData.remove(this); // Paper - fix AdvancementDataPlayer leak
}
protected abstract T b(JsonObject jsonobject, CriterionConditionEntity.b criterionconditionentity_b, LootDeserializationContext lootdeserializationcontext);
@@ -56,7 +56,7 @@ public abstract class CriterionTriggerAbstract<T extends CriterionInstanceAbstra
protected void a(EntityPlayer entityplayer, Predicate<T> predicate) {
AdvancementDataPlayer advancementdataplayer = entityplayer.getAdvancementData();
- Set<CriterionTrigger.a<T>> set = (Set) this.a.get(advancementdataplayer);
+ Set<CriterionTrigger.a<T>> set = (Set) advancementdataplayer.criterionData.get(this); // Paper - fix AdvancementDataPlayer leak
if (set != null && !set.isEmpty()) {
LootTableInfo loottableinfo = CriterionConditionEntity.b(entityplayer, entityplayer);
@@ -67,7 +67,7 @@ public abstract class CriterionTriggerAbstract<T extends CriterionInstanceAbstra
while (iterator.hasNext()) {
criteriontrigger_a = (CriterionTrigger.a) iterator.next();
- T t0 = (CriterionInstanceAbstract) criteriontrigger_a.a();
+ T t0 = (T) criteriontrigger_a.a(); // Paper - decompile fix
if (t0.b().a(loottableinfo) && predicate.test(t0)) {
if (list == null) {
diff --git a/src/main/java/net/minecraft/server/AdvancementDataPlayer.java b/src/main/java/net/minecraft/server/AdvancementDataPlayer.java
index e1d3f7e63c731f9376900a86abe17282e9b55ded..8e760445885f6ab92f60db0ee2a02d098b5e5f03 100644
--- a/src/main/java/net/minecraft/server/AdvancementDataPlayer.java
+++ b/src/main/java/net/minecraft/server/AdvancementDataPlayer.java
@@ -39,6 +39,7 @@ import net.minecraft.advancements.CriterionInstance;
import net.minecraft.advancements.CriterionProgress;
import net.minecraft.advancements.CriterionTrigger;
import net.minecraft.advancements.CriterionTriggers;
+import net.minecraft.advancements.critereon.CriterionTriggerAbstract;
import net.minecraft.network.chat.ChatMessage;
import net.minecraft.network.chat.ChatMessageType;
import net.minecraft.network.protocol.game.PacketPlayOutAdvancements;
@@ -69,6 +70,10 @@ public class AdvancementDataPlayer {
private Advancement l;
private boolean m = true;
+ // Paper start - fix advancement data player leakage
+ public final Map<CriterionTriggerAbstract, Set<CriterionTrigger.a>> criterionData = Maps.newIdentityHashMap();
+ // Paper end - fix advancement data player leakage
+
public AdvancementDataPlayer(DataFixer datafixer, PlayerList playerlist, AdvancementDataWorld advancementdataworld, File file, EntityPlayer entityplayer) {
this.d = datafixer;
this.e = playerlist;