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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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/SimpleCriterionTrigger.java b/src/main/java/net/minecraft/advancements/critereon/SimpleCriterionTrigger.java
index 70d4467e8e4dd9be38a7bfe8494efb6e67e18b9a..4b0e967fac5adb54b2d26ee8f7a1ced259ad11db 100644
--- a/src/main/java/net/minecraft/advancements/critereon/SimpleCriterionTrigger.java
+++ b/src/main/java/net/minecraft/advancements/critereon/SimpleCriterionTrigger.java
@@ -14,22 +14,24 @@ import net.minecraft.server.level.ServerPlayer;
import net.minecraft.world.level.storage.loot.LootContext;
public abstract class SimpleCriterionTrigger<T extends AbstractCriterionTriggerInstance> implements CriterionTrigger<T> {
- private final Map<PlayerAdvancements, Set<CriterionTrigger.Listener<T>>> players = Maps.newIdentityHashMap();
+ //private final Map<PlayerAdvancements, Set<CriterionTrigger.Listener<T>>> players = Maps.newIdentityHashMap(); // Paper - moved into AdvancementDataPlayer to fix memory leak
+
+ public SimpleCriterionTrigger() {}
@Override
public final void addPlayerListener(PlayerAdvancements manager, CriterionTrigger.Listener<T> conditions) {
- this.players.computeIfAbsent(manager, (managerx) -> {
+ manager.criterionData.computeIfAbsent(this, (managerx) -> { // Paper - fix AdvancementDataPlayer leak
return Sets.newHashSet();
}).add(conditions);
}
@Override
public final void removePlayerListener(PlayerAdvancements manager, CriterionTrigger.Listener<T> conditions) {
- Set<CriterionTrigger.Listener<T>> set = this.players.get(manager);
+ Set<CriterionTrigger.Listener<T>> set = (Set) manager.criterionData.get(this); // Paper - fix AdvancementDataPlayer leak
if (set != null) {
set.remove(conditions);
if (set.isEmpty()) {
- this.players.remove(manager);
+ manager.criterionData.remove(this); // Paper - fix AdvancementDataPlayer leak
}
}
@@ -37,7 +39,7 @@ public abstract class SimpleCriterionTrigger<T extends AbstractCriterionTriggerI
@Override
public final void removePlayerListeners(PlayerAdvancements tracker) {
- this.players.remove(tracker);
+ tracker.criterionData.remove(this); // Paper - fix AdvancementDataPlayer leak
}
protected abstract T createInstance(JsonObject obj, ContextAwarePredicate playerPredicate, DeserializationContext predicateDeserializer);
@@ -50,7 +52,7 @@ public abstract class SimpleCriterionTrigger<T extends AbstractCriterionTriggerI
protected void trigger(ServerPlayer player, Predicate<T> predicate) {
PlayerAdvancements playerAdvancements = player.getAdvancements();
- Set<CriterionTrigger.Listener<T>> set = this.players.get(playerAdvancements);
+ Set<CriterionTrigger.Listener<T>> set = (Set) playerAdvancements.criterionData.get(this); // Paper - fix AdvancementDataPlayer leak
if (set != null && !set.isEmpty()) {
LootContext lootContext = EntityPredicate.createContext(player, player);
List<CriterionTrigger.Listener<T>> list = null;
diff --git a/src/main/java/net/minecraft/server/PlayerAdvancements.java b/src/main/java/net/minecraft/server/PlayerAdvancements.java
index 100781852965e09c92aca34785673c5de51c7107..9034faaf7b169788abad01d3da9c65ad5ddc4b8b 100644
--- a/src/main/java/net/minecraft/server/PlayerAdvancements.java
+++ b/src/main/java/net/minecraft/server/PlayerAdvancements.java
@@ -62,6 +62,7 @@ public class PlayerAdvancements {
@Nullable
private Advancement lastSelectedTab;
private boolean isFirstPacket = true;
+ public final Map<net.minecraft.advancements.critereon.SimpleCriterionTrigger, Set<CriterionTrigger.Listener>> criterionData = new java.util.IdentityHashMap<>(); // Paper - fix advancement data player leakage
public PlayerAdvancements(DataFixer dataFixer, PlayerList playerManager, ServerAdvancementManager advancementLoader, Path filePath, ServerPlayer owner) {
this.dataFixer = dataFixer;
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