Merge remote-tracking branch 'upstream/main'

paper-api/build.gradle.kts

@@ -11,7 +11,7 @@ java {
 
 val annotationsVersion = "26.0.2"
 // Keep in sync with paper-server adventure-text-serializer-ansi dep
-val adventureVersion = "4.21.0"
+val adventureVersion = "4.23.0"
 val bungeeCordChatVersion = "1.21-R0.2-deprecated+build.21"
 val slf4jVersion = "2.0.16"
 val log4jVersion = "2.24.1"

paper-api/src/main/java/io/papermc/paper/InternalAPIBridge.java

@@ -1,5 +1,6 @@
 package io.papermc.paper;
 
+import io.papermc.paper.command.brigadier.CommandSourceStack;
 import io.papermc.paper.world.damagesource.CombatEntry;
 import io.papermc.paper.world.damagesource.FallLocationType;
 import net.kyori.adventure.util.Services;
@@ -11,6 +12,8 @@ import org.jetbrains.annotations.ApiStatus;
 import org.jspecify.annotations.NullMarked;
 import org.jspecify.annotations.Nullable;
 
+import java.util.function.Predicate;
+
 /**
  * Static bridge to the server internals.
  * <p>
@@ -73,5 +76,15 @@ public interface InternalAPIBridge {
      * @return combat entry
      */
     CombatEntry createCombatEntry(DamageSource damageSource, float damage, @Nullable FallLocationType fallLocationType, float fallDistance);
+
+    /**
+     * Causes this predicate to be considered restricted.
+     * Applying this to a command node prevents this command from being executed from an
+     * unattended context, such as click events.
+     *
+     * @param predicate wrapped predicate
+     * @return wrapped predicate
+     */
+    Predicate<CommandSourceStack> restricted(Predicate<CommandSourceStack> predicate);
 }
 

paper-api/src/main/java/io/papermc/paper/command/brigadier/Commands.java

@@ -5,6 +5,7 @@ import com.mojang.brigadier.arguments.ArgumentType;
 import com.mojang.brigadier.builder.LiteralArgumentBuilder;
 import com.mojang.brigadier.builder.RequiredArgumentBuilder;
 import com.mojang.brigadier.tree.LiteralCommandNode;
+import io.papermc.paper.InternalAPIBridge;
 import io.papermc.paper.plugin.bootstrap.BootstrapContext;
 import io.papermc.paper.plugin.bootstrap.PluginBootstrap;
 import io.papermc.paper.plugin.configuration.PluginMeta;
@@ -13,6 +14,7 @@ import io.papermc.paper.plugin.lifecycle.event.registrar.Registrar;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Set;
+import java.util.function.Predicate;
 import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.Unmodifiable;
 import org.jspecify.annotations.NullMarked;
@@ -85,6 +87,22 @@ public interface Commands extends Registrar {
         return RequiredArgumentBuilder.argument(name, argumentType);
     }
 
+    /**
+     * Creates a restricted {@link Predicate} that wraps the given predicate.
+     * <p>
+     * A restricted predicate prevents execution in unattended contexts, such as from
+     * chat click events. A warning is shown on the client before executing the command.
+     * <p>
+     * This is used by vanilla to prevent invocation of sensitive commands (like op) from
+     * players without their knowledge.
+     *
+     * @param predicate the original predicate to wrap
+     * @return a new predicate with restricted execution behavior
+     */
+    static Predicate<CommandSourceStack> restricted(final Predicate<CommandSourceStack> predicate) {
+        return InternalAPIBridge.get().restricted(predicate);
+    }
+
     /**
      * Gets the underlying {@link CommandDispatcher}.
      *

paper-api/src/main/java/io/papermc/paper/plugin/provider/util/ProviderUtil.java

@@ -4,6 +4,8 @@ import com.destroystokyo.paper.util.SneakyThrow;
 import org.jetbrains.annotations.ApiStatus;
 import org.jspecify.annotations.NullMarked;
 import org.jspecify.annotations.Nullable;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InaccessibleObjectException;
 
 /**
  * An <b>internal</b> utility type that holds logic for loading a provider-like type from a classloaders.
@@ -56,7 +58,14 @@ public final class ProviderUtil {
                     throw new ClassCastException("class '%s' does not extend '%s'".formatted(clazz, classType));
                 }
 
-                clazzInstance = pluginClass.getDeclaredConstructor().newInstance();
+                final Constructor<? extends T> constructor = pluginClass.getDeclaredConstructor();
+                try {
+                    constructor.setAccessible(true); // Allow non-public constructors
+                } catch (final InaccessibleObjectException | SecurityException ex) {
+                    throw new RuntimeException("Inaccessible constructor");
+                }
+
+                clazzInstance = constructor.newInstance();
             } catch (final IllegalAccessException exception) {
                 throw new RuntimeException("No public constructor");
             } catch (final InstantiationException exception) {

paper-api/src/main/java/io/papermc/paper/registry/RegistryKey.java

@@ -76,16 +76,14 @@ public sealed interface RegistryKey<T> extends Keyed permits RegistryKeyImpl {
      */
     RegistryKey<PotionEffectType> MOB_EFFECT = create("mob_effect");
     /**
-     * @apiNote DO NOT USE
+     * Built-in registry for block types.
+     * @see io.papermc.paper.registry.keys.BlockTypeKeys
      */
-    @ApiStatus.Internal
     RegistryKey<BlockType> BLOCK = create("block");
     /**
-     * @apiNote use preferably only in the context of registry entries.
+     * Built-in registry for item types.
-     * @see io.papermc.paper.registry.data
      * @see io.papermc.paper.registry.keys.ItemTypeKeys
      */
-    @ApiStatus.Experimental // Paper - already required for registry builders
     RegistryKey<ItemType> ITEM = create("item");
     /**
      * Built-in registry for villager professions.

paper-api/src/main/java/org/bukkit/SoundCategory.java

@@ -37,7 +37,7 @@ public enum SoundCategory implements Sound.Source.Provider {
             case PLAYERS -> Sound.Source.PLAYER;
             case AMBIENT -> Sound.Source.AMBIENT;
             case VOICE -> Sound.Source.VOICE;
-            case UI -> throw new UnsupportedOperationException("Waiting on adventure release for the UI sound source"); // todo adventure
+            case UI -> Sound.Source.UI;
         };
     }
 }

paper-api/src/main/java/org/bukkit/block/BlockType.java

@@ -2,9 +2,10 @@ package org.bukkit.block;
 
 import java.util.Collection;
 import java.util.function.Consumer;
+import net.kyori.adventure.key.Key;
+import net.kyori.adventure.key.KeyPattern;
 import org.bukkit.Keyed;
 import org.bukkit.Material;
-import org.bukkit.NamespacedKey;
 import org.bukkit.Registry;
 import org.bukkit.Translatable;
 import org.bukkit.World;
@@ -82,7 +83,6 @@ import org.bukkit.block.data.type.MangrovePropagule;
 import org.bukkit.block.data.type.MossyCarpet;
 import org.bukkit.block.data.type.NoteBlock;
 import org.bukkit.block.data.type.Observer;
-import org.bukkit.block.data.type.PinkPetals;
 import org.bukkit.block.data.type.Piston;
 import org.bukkit.block.data.type.PistonHead;
 import org.bukkit.block.data.type.PitcherCrop;
@@ -122,18 +122,14 @@ import org.bukkit.block.data.type.WallHangingSign;
 import org.bukkit.block.data.type.WallSign;
 import org.bukkit.block.data.type.WallSkull;
 import org.bukkit.inventory.ItemType;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
 import org.jetbrains.annotations.Unmodifiable;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
 
 /**
- * While this API is in a public interface, it is not intended for use by
+ * Represents a block type.
- * plugins until further notice. The purpose of these types is to make
- * {@link Material} more maintenance friendly, but will in due time be the
- * official replacement for the aforementioned enum. Entirely incompatible
- * changes may occur. Do not use this API in plugins.
  */
-@org.jetbrains.annotations.ApiStatus.Experimental // Paper - data component API - already required for data component API
+@NullMarked
 public interface BlockType extends Keyed, Translatable, net.kyori.adventure.translation.Translatable, io.papermc.paper.world.flag.FeatureDependant { // Paper - add translatable & feature flag API
 
     /**
@@ -150,7 +146,6 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
          *
          * @return the BlockData class of this BlockType
          */
-        @NotNull
         @Override
         Class<B> getBlockDataClass();
 
@@ -161,7 +156,6 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
          * @param consumer consumer to run on new instance before returning
          * @return new data instance
          */
-        @NotNull
         B createBlockData(@Nullable Consumer<? super B> consumer);
 
         /**
@@ -170,7 +164,6 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
          *
          * @return new data instance
          */
-        @NotNull
         @Override
         B createBlockData();
 
@@ -181,7 +174,7 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
          * @return new block data collection
          */
         @Override
-        @Unmodifiable @NotNull Collection<B> createBlockDataStates();
+        @Unmodifiable Collection<B> createBlockDataStates();
 
         /**
          * Creates a new {@link BlockData} instance for this block type, with all
@@ -192,7 +185,6 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
          * @return new data instance
          * @throws IllegalArgumentException if the specified data is not valid
          */
-        @NotNull
         B createBlockData(@Nullable String data);
     }
 
@@ -2411,10 +2403,10 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
     // End generate - BlockType
     //</editor-fold>
 
-    @NotNull
+    @SuppressWarnings("unchecked")
-    private static <B extends BlockType> B getBlockType(@NotNull String key) {
+    private static <B extends BlockType> B getBlockType(@KeyPattern.Value final String key) {
         // Cast instead of using BlockType#typed, since block type can be a mock during testing and would return null
-        return (B) Registry.BLOCK.getOrThrow(NamespacedKey.minecraft(key));
+        return (B) Registry.BLOCK.getOrThrow(Key.key(Key.MINECRAFT_NAMESPACE, key));
     }
 
     /**
@@ -2422,7 +2414,6 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
      *
      * @return the typed block type.
      */
-    @NotNull
     BlockType.Typed<BlockData> typed();
 
     /**
@@ -2432,8 +2423,7 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
      * @param <B>          the generic type of the block data to type this block type with.
      * @return the typed block type.
      */
-    @NotNull
+    <B extends BlockData> BlockType.Typed<B> typed(Class<B> blockDataType);
-    <B extends BlockData> BlockType.Typed<B> typed(@NotNull Class<B> blockDataType);
 
     /**
      * Returns true if this BlockType has a corresponding {@link ItemType}.
@@ -2447,12 +2437,14 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
      * Returns the corresponding {@link ItemType} for the given BlockType.
      * <p>
      * If there is no corresponding {@link ItemType} an error will be thrown.
+     * <p>This is <b>NOT</b> the same as the {@link ItemType} with the same key,
+     * but instead is the item associated with this block if this block
+     * can be represented with an item.</p>
      *
      * @return the corresponding ItemType
      * @see #hasItemType()
      * @see BlockData#getPlacementMaterial()
      */
-    @NotNull
     ItemType getItemType();
 
     /**
@@ -2460,7 +2452,6 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
      *
      * @return the BlockData class of this BlockType
      */
-    @NotNull
     Class<? extends BlockData> getBlockDataClass();
 
     /**
@@ -2469,7 +2460,6 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
      *
      * @return new data instance
      */
-    @NotNull
     BlockData createBlockData();
 
     /**
@@ -2478,7 +2468,7 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
      *
      * @return new block data collection
      */
-    @Unmodifiable @NotNull Collection<? extends BlockData> createBlockDataStates();
+    @Unmodifiable Collection<? extends BlockData> createBlockDataStates();
 
     /**
      * Creates a new {@link BlockData} instance for this block type, with all
@@ -2489,7 +2479,6 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
      * @return new data instance
      * @throws IllegalArgumentException if the specified data is not valid
      */
-    @NotNull
     BlockData createBlockData(@Nullable String data);
 
     /**
@@ -2607,7 +2596,7 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
      * @deprecated use {@link io.papermc.paper.world.flag.FeatureFlagSetHolder#isEnabled(io.papermc.paper.world.flag.FeatureDependant)}
      */
     @Deprecated(forRemoval = true, since = "1.21.1") // Paper
-    boolean isEnabledByFeature(@NotNull World world);
+    boolean isEnabledByFeature(World world);
 
     /**
      * Tries to convert this BlockType into a Material
@@ -2619,21 +2608,17 @@ public interface BlockType extends Keyed, Translatable, net.kyori.adventure.tran
     @Deprecated(since = "1.20.6")
     Material asMaterial();
 
-    // Paper start - add Translatable
     /**
      * @deprecated use {@link #translationKey()} and {@link net.kyori.adventure.text.Component#translatable(net.kyori.adventure.translation.Translatable)}
      */
     @Deprecated(forRemoval = true)
     @Override
-    @NotNull String getTranslationKey();
+    String getTranslationKey();
-    // Paper end - add Translatable
 
-    // Paper start - hasCollision API
     /**
      * Checks if this block type has collision.
      * <p>
      * @return false if this block never has collision, true if it <b>might</b> have collision
      */
     boolean hasCollision();
-    // Paper end - hasCollision API
 }

paper-api/src/main/java/org/bukkit/inventory/ItemType.java

@@ -1,10 +1,13 @@
 package org.bukkit.inventory;
 
 import com.google.common.collect.Multimap;
+import io.papermc.paper.datacomponent.DataComponentType;
+import java.util.Set;
 import java.util.function.Consumer;
+import net.kyori.adventure.key.Key;
+import net.kyori.adventure.key.KeyPattern;
 import org.bukkit.Keyed;
 import org.bukkit.Material;
-import org.bukkit.NamespacedKey;
 import org.bukkit.Registry;
 import org.bukkit.Translatable;
 import org.bukkit.World;
@@ -36,17 +39,14 @@ import org.bukkit.inventory.meta.SpawnEggMeta;
 import org.bukkit.inventory.meta.SuspiciousStewMeta;
 import org.bukkit.inventory.meta.TropicalFishBucketMeta;
 import org.jetbrains.annotations.ApiStatus;
-import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Unmodifiable;
-import org.jetbrains.annotations.Nullable;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
 
 /**
- * While this API is in a public interface, it is not intended for use by
+ * Represents an item type.
- * plugins until further notice. The purpose of these types is to make
- * {@link Material} more maintenance friendly, but will in due time be the
- * official replacement for the aforementioned enum. Entirely incompatible
- * changes may occur. Do not use this API in plugins.
  */
-@ApiStatus.Experimental // Paper - already required for registry builders
+@NullMarked
 public interface ItemType extends Keyed, Translatable, net.kyori.adventure.translation.Translatable, io.papermc.paper.world.flag.FeatureDependant { // Paper - add Translatable & feature flag API
 
     /**
@@ -54,7 +54,11 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
      * at compile time.
      *
      * @param <M> the generic type of the item meta that represents the item type.
+     * @apiNote Do not use methods exclusive to this interface unless you are
+     * fine with them being possibly removed in the future.
      */
+    @ApiStatus.Experimental
+    @ApiStatus.NonExtendable
     interface Typed<M extends ItemMeta> extends ItemType {
 
         /**
@@ -63,7 +67,7 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
          * @return the ItemMeta class of this ItemType
          */
         @Override
-        @NotNull
+        @ApiStatus.Experimental
         Class<M> getItemMetaClass();
 
         /**
@@ -73,7 +77,7 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
          *                         May be null if no intent exists to mutate the item meta at this point.
          * @return the created and configured item stack.
          */
-        @NotNull
+        @ApiStatus.Experimental
         ItemStack createItemStack(@Nullable Consumer<? super M> metaConfigurator);
 
         /**
@@ -84,7 +88,7 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
          *                         May be null if no intent exists to mutate the item meta at this point.
          * @return the created and configured item stack.
          */
-        @NotNull
+        @ApiStatus.Experimental
         ItemStack createItemStack(int amount, @Nullable Consumer<? super M> metaConfigurator);
     }
 
@@ -2923,18 +2927,19 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
     // End generate - ItemType
     //</editor-fold>
 
-    @NotNull
+    @SuppressWarnings("unchecked")
-    private static <M extends ItemType> M getItemType(@NotNull String key) {
+    private static <M extends ItemType> M getItemType(@KeyPattern.Value final String key) {
         // Cast instead of using ItemType#typed, since item type can be a mock during testing and would return null
-        return (M) Registry.ITEM.getOrThrow(NamespacedKey.minecraft(key));
+        return (M) Registry.ITEM.getOrThrow(Key.key(Key.MINECRAFT_NAMESPACE, key));
     }
 
     /**
      * Yields this item type as a typed version of itself with a plain {@link ItemMeta} representing it.
      *
      * @return the typed item type.
+     * @apiNote The Typed interface is experimental and may be removed in future versions.
      */
-    @NotNull
+    @ApiStatus.Experimental
     Typed<ItemMeta> typed();
 
     /**
@@ -2943,16 +2948,16 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
      * @param itemMetaType the class type of the {@link ItemMeta} to type this {@link ItemType} with.
      * @param <M> the generic type of the item meta to type this item type with.
      * @return the typed item type.
+     * @apiNote The Typed interface is experimental and may be removed in future versions.
      */
-    @NotNull
+    @ApiStatus.Experimental
-    <M extends ItemMeta> Typed<M> typed(@NotNull Class<M> itemMetaType);
+    <M extends ItemMeta> Typed<M> typed(Class<M> itemMetaType);
 
     /**
      * Constructs a new itemstack with this item type that has the amount 1.
      *
      * @return the constructed item stack.
      */
-    @NotNull
     ItemStack createItemStack();
 
     /**
@@ -2961,7 +2966,6 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
      * @param amount the amount of the item stack.
      * @return the constructed item stack.
      */
-    @NotNull
     ItemStack createItemStack(int amount);
 
     /**
@@ -2976,11 +2980,12 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
      * Returns the corresponding {@link BlockType} for the given ItemType.
      * <p>
      * If there is no corresponding {@link BlockType} an error will be thrown.
+     * <p>This is <b>NOT</b> the same as the {@link BlockType} with the same key,
+     * but instead is the block associated with this item if this item represents a block.</p>
      *
      * @return the corresponding BlockType
      * @see #hasBlockType()
      */
-    @NotNull
     BlockType getBlockType();
 
     /**
@@ -2988,7 +2993,6 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
      *
      * @return the ItemMeta class of this ItemType
      */
-    @NotNull
     Class<? extends ItemMeta> getItemMetaClass();
 
     /**
@@ -3064,20 +3068,8 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
      *
      * @return the item left behind when crafting, or null if nothing is.
      */
-    @Nullable
+    @Nullable ItemType getCraftingRemainingItem();
-    ItemType getCraftingRemainingItem();
 
-//    /**
-//     * Get the best suitable slot for this item type.
-//     *
-//     * For most items this will be {@link EquipmentSlot#HAND}.
-//     *
-//     * @return the best EquipmentSlot for this item type
-//     */
-//    @NotNull
-//    EquipmentSlot getEquipmentSlot();
-
-    // Paper start - improve default item attribute API
     /**
      * Return an immutable copy of all default {@link Attribute}s and their
      * {@link AttributeModifier}s.
@@ -3089,8 +3081,7 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
      * @return the immutable {@link Multimap} with the respective default
      * Attributes and modifiers, or an empty map if no attributes are set.
      */
-    @NotNull @org.jetbrains.annotations.Unmodifiable Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers();
+    @Unmodifiable Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers();
-    // Paper end - improve default item attribute API
 
     /**
      * Return an immutable copy of all default {@link Attribute}s and their
@@ -3103,8 +3094,7 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
      * @return the immutable {@link Multimap} with the respective default
      * Attributes and modifiers, or an empty map if no attributes are set.
      */
-    @NotNull
+    @Unmodifiable Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers(EquipmentSlot slot);
-    Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers(@NotNull EquipmentSlot slot);
 
     /**
      * Get the {@link CreativeCategory} to which this item type belongs.
@@ -3112,9 +3102,8 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
      * @return the creative category. null if does not belong to a category
      <!-- * @deprecated use #getCreativeCategories() -->
      */
-    @Nullable
     @Deprecated(since = "1.20.6", forRemoval = true)
-    CreativeCategory getCreativeCategory();
+    @Nullable CreativeCategory getCreativeCategory();
 
     /**
      * Gets if the ItemType is enabled by the features in a world.
@@ -3124,7 +3113,7 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
      * @deprecated use {@link io.papermc.paper.world.flag.FeatureFlagSetHolder#isEnabled(io.papermc.paper.world.flag.FeatureDependant)}
      */
     @Deprecated(forRemoval = true, since = "1.21.1") // Paper
-    boolean isEnabledByFeature(@NotNull World world);
+    boolean isEnabledByFeature(World world);
 
     /**
      * Tries to convert this ItemType into a Material
@@ -3132,38 +3121,33 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
      * @return the converted Material or null
      * @deprecated only for internal use
      */
-    @Nullable
     @Deprecated(since = "1.20.6")
-    Material asMaterial();
+    @Nullable Material asMaterial();
 
-    // Paper start - add Translatable
     /**
      * @deprecated use {@link #translationKey()} and {@link net.kyori.adventure.text.Component#translatable(net.kyori.adventure.translation.Translatable)}
      */
     @Deprecated(forRemoval = true)
     @Override
-    @NotNull String getTranslationKey();
+    String getTranslationKey();
-    // Paper end - add Translatable
 
-    // Paper start - expand ItemRarity API
     /**
      * Returns the item rarity for the item.
      *
      * @return the item rarity (or null if none is set)
      */
     @Nullable ItemRarity getItemRarity();
-    // Paper end - expand ItemRarity API
+
-    // Paper start - data component API
     /**
      * Gets the default value of the data component type for this item type.
      *
      * @param type the data component type
      * @param <T> the value type
      * @return the default value or {@code null} if there is none
-     * @see #hasDefaultData(io.papermc.paper.datacomponent.DataComponentType) for DataComponentType.NonValued
+     * @see #hasDefaultData(DataComponentType) for DataComponentType.NonValued
      */
-    @org.jetbrains.annotations.ApiStatus.Experimental
+    @ApiStatus.Experimental
-    @Nullable <T> T getDefaultData(io.papermc.paper.datacomponent.DataComponentType.@NotNull Valued<T> type);
+    @Nullable <T> T getDefaultData(DataComponentType.Valued<T> type);
 
     /**
      * Checks if the data component type has a default value for this item type.
@@ -3172,14 +3156,13 @@ public interface ItemType extends Keyed, Translatable, net.kyori.adventure.trans
      * @return {@code true} if there is a default value
      */
     @org.jetbrains.annotations.ApiStatus.Experimental
-    boolean hasDefaultData(io.papermc.paper.datacomponent.@NotNull DataComponentType type);
+    boolean hasDefaultData(DataComponentType type);
 
     /**
      * Gets the default data component types for this item type.
      *
      * @return an immutable set of data component types
      */
-    @org.jetbrains.annotations.ApiStatus.Experimental
+    @ApiStatus.Experimental
-    java.util.@org.jetbrains.annotations.Unmodifiable @NotNull Set<io.papermc.paper.datacomponent.DataComponentType> getDefaultDataTypes();
+    @Unmodifiable Set<DataComponentType> getDefaultDataTypes();
-    // Paper end - data component API
 }

paper-api/src/main/java/org/bukkit/plugin/PluginManager.java

@@ -29,7 +29,7 @@ public interface PluginManager extends io.papermc.paper.plugin.PermissionManager
     /**
      * Checks if the given plugin is loaded and returns it when applicable
      * <p>
-     * Please note that the name of the plugin is case-sensitive
+     * Please note that the name of the plugin is case-insensitive
      *
      * @param name Name of the plugin to check
      * @return Plugin if it exists, otherwise null
@@ -48,7 +48,7 @@ public interface PluginManager extends io.papermc.paper.plugin.PermissionManager
     /**
      * Checks if the given plugin is enabled or not
      * <p>
-     * Please note that the name of the plugin is case-sensitive.
+     * Please note that the name of the plugin is case-insensitive.
      *
      * @param name Name of the plugin to check
      * @return true if the plugin is enabled, otherwise false

paper-api/src/main/java/org/bukkit/plugin/SimplePluginManager.java

@@ -464,7 +464,7 @@ public final class SimplePluginManager implements PluginManager {
     /**
      * Checks if the given plugin is loaded and returns it when applicable
      * <p>
-     * Please note that the name of the plugin is case-sensitive
+     * Please note that the name of the plugin is case-insensitive
      *
      * @param name Name of the plugin to check
      * @return Plugin if it exists, otherwise null
@@ -486,7 +486,7 @@ public final class SimplePluginManager implements PluginManager {
     /**
      * Checks if the given plugin is enabled or not
      * <p>
-     * Please note that the name of the plugin is case-sensitive.
+     * Please note that the name of the plugin is case-insensitive.
      *
      * @param name Name of the plugin to check
      * @return true if the plugin is enabled, otherwise false

paper-api/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java

@@ -6,6 +6,7 @@ import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.lang.reflect.Constructor;
+import java.lang.reflect.InaccessibleObjectException;
 import java.lang.reflect.InvocationTargetException;
 import java.net.MalformedURLException;
 import java.net.URL;
@@ -91,13 +92,20 @@ public final class PluginClassLoader extends URLClassLoader implements io.paperm
         try {
             pluginConstructor = pluginClass.getDeclaredConstructor();
         } catch (NoSuchMethodException ex) {
-            throw new InvalidPluginException("main class `" + description.getMain() + "' must have a public no-args constructor", ex);
+            throw new InvalidPluginException("main class `" + description.getMain() + "' must have a no-args constructor", ex);
+        }
+
+        try {
+            // Support non-public constructors
+            pluginConstructor.setAccessible(true);
+        } catch (InaccessibleObjectException | SecurityException ex) {
+            throw new InvalidPluginException("main class `" + description.getMain() + "' constructor inaccessible", ex);
         }
 
         try {
             plugin = pluginConstructor.newInstance();
         } catch (IllegalAccessException ex) {
-            throw new InvalidPluginException("main class `" + description.getMain() + "' constructor must be public", ex);
+            throw new InvalidPluginException("main class `" + description.getMain() + "' constructor inaccessible", ex);
         } catch (InstantiationException ex) {
             throw new InvalidPluginException("main class `" + description.getMain() + "' must not be abstract", ex);
         } catch (IllegalArgumentException ex) {

paper-api/src/main/java/org/bukkit/spawner/BaseSpawner.java

@@ -8,13 +8,14 @@ import org.bukkit.block.spawner.SpawnerEntry;
 import org.bukkit.entity.EntitySnapshot;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.minecart.SpawnerMinecart;
-import org.jetbrains.annotations.NotNull;
+import org.jspecify.annotations.NullMarked;
-import org.jetbrains.annotations.Nullable;
+import org.jspecify.annotations.Nullable;
 
 /**
  * Represents a basic entity spawner. <br>
  * May be a {@link SpawnerMinecart}, {@link CreatureSpawner} or {@link TrialSpawnerConfiguration}.
  */
+@NullMarked
 public interface BaseSpawner {
 
     /**
@@ -23,7 +24,7 @@ public interface BaseSpawner {
      * @return The creature type or null if it not set.
      */
     @Nullable
-    public EntityType getSpawnedType();
+    EntityType getSpawnedType();
 
     /**
      * Set the spawner's creature type. <br>
@@ -31,7 +32,7 @@ public interface BaseSpawner {
      *
      * @param creatureType The creature type or null to clear.
      */
-    public void setSpawnedType(@Nullable EntityType creatureType);
+    void setSpawnedType(@Nullable EntityType creatureType);
 
     /**
      * Get the spawner's delay.
@@ -40,14 +41,14 @@ public interface BaseSpawner {
      *
      * @return The delay.
      */
-    public int getDelay();
+    int getDelay();
 
     /**
      * Set the spawner's delay.
      *
      * @param delay The delay.
      */
-    public void setDelay(int delay);
+    void setDelay(int delay);
 
     /**
      * Get the maximum distance(squared) a player can be in order for this
@@ -61,7 +62,7 @@ public interface BaseSpawner {
      * @return the maximum distance(squared) a player can be in order for this
      * spawner to be active.
      */
-    public int getRequiredPlayerRange();
+    int getRequiredPlayerRange();
 
     /**
      * Set the maximum distance (squared) a player can be in order for this
@@ -73,7 +74,7 @@ public interface BaseSpawner {
      * @param requiredPlayerRange the maximum distance (squared) a player can be
      * in order for this spawner to be active.
      */
-    public void setRequiredPlayerRange(int requiredPlayerRange);
+    void setRequiredPlayerRange(int requiredPlayerRange);
 
     /**
      * Get the radius around which the spawner will attempt to spawn mobs in.
@@ -89,7 +90,7 @@ public interface BaseSpawner {
      *
      * @return the spawn range
      */
-    public int getSpawnRange();
+    int getSpawnRange();
 
     /**
      * Set the new spawn range.
@@ -98,7 +99,7 @@ public interface BaseSpawner {
      * @param spawnRange the new spawn range
      * @see #getSpawnRange()
      */
-    public void setSpawnRange(int spawnRange);
+    void setSpawnRange(int spawnRange);
 
     /**
      * Gets the {@link EntitySnapshot} that will be spawned by this spawner or null
@@ -111,7 +112,7 @@ public interface BaseSpawner {
      *         spawner.
      */
     @Nullable
-    public EntitySnapshot getSpawnedEntity();
+    EntitySnapshot getSpawnedEntity();
 
     /**
      * Sets the entity that will be spawned by this spawner. <br>
@@ -123,7 +124,7 @@ public interface BaseSpawner {
      *
      * @param snapshot the entity snapshot or null to clear
      */
-    public void setSpawnedEntity(@Nullable EntitySnapshot snapshot);
+    void setSpawnedEntity(@Nullable EntitySnapshot snapshot);
 
     /**
      * Sets the {@link SpawnerEntry} that will be spawned by this spawner. <br>
@@ -132,14 +133,14 @@ public interface BaseSpawner {
      *
      * @param spawnerEntry the spawner entry to use
      */
-    public void setSpawnedEntity(@NotNull SpawnerEntry spawnerEntry);
+    void setSpawnedEntity(SpawnerEntry spawnerEntry);
 
     /**
      * Adds a new {@link EntitySnapshot} to the list of entities this spawner can
      * spawn.
      * <p>
      * The weight will determine how often this entry is chosen to spawn, higher
-     * weighted entries will spawn more often than lower weighted ones. <br>
+     * weighted entries will spawn more often than lower-weighted ones. <br>
      * The {@link SpawnRule} will determine under what conditions this entry can
      * spawn, passing null will use the default conditions for the given entity.
      *
@@ -147,7 +148,7 @@ public interface BaseSpawner {
      * @param weight    the weight
      * @param spawnRule the spawn rule for this entity, or null
      */
-    public void addPotentialSpawn(@NotNull EntitySnapshot snapshot, int weight, @Nullable SpawnRule spawnRule);
+    void addPotentialSpawn(EntitySnapshot snapshot, int weight, @Nullable SpawnRule spawnRule);
 
     /**
      * Adds a new {@link SpawnerEntry} to the list of entities this spawner can
@@ -156,7 +157,7 @@ public interface BaseSpawner {
      * @param spawnerEntry the spawner entry to use
      * @see #addPotentialSpawn(EntitySnapshot, int, SpawnRule)
      */
-    public void addPotentialSpawn(@NotNull final SpawnerEntry spawnerEntry);
+    void addPotentialSpawn(final SpawnerEntry spawnerEntry);
 
     /**
      * Sets the list of {@link SpawnerEntry} this spawner can spawn. <br>
@@ -165,7 +166,7 @@ public interface BaseSpawner {
      *
      * @param entries the list of entries
      */
-    public void setPotentialSpawns(@NotNull final Collection<SpawnerEntry> entries);
+    void setPotentialSpawns(final Collection<SpawnerEntry> entries);
 
     /**
      * Gets a list of potential spawns from this spawner or an empty list if no
@@ -177,6 +178,5 @@ public interface BaseSpawner {
      *         entities have been assigned to this spawner
      * @see #getSpawnedType()
      */
-    @NotNull
+    List<SpawnerEntry> getPotentialSpawns();
-    public List<SpawnerEntry> getPotentialSpawns();
 }

paper-api/src/main/java/org/bukkit/spawner/Spawner.java

@@ -3,11 +3,14 @@ package org.bukkit.spawner;
 import org.bukkit.block.CreatureSpawner;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.minecart.SpawnerMinecart;
+import org.bukkit.inventory.ItemStack;
+import org.jspecify.annotations.NullMarked;
 
 /**
  * Represents an entity spawner. <br>
  * May be a {@link SpawnerMinecart} or a {@link CreatureSpawner}.
  */
+@NullMarked
 public interface Spawner extends BaseSpawner {
 
     /**
@@ -19,7 +22,7 @@ public interface Spawner extends BaseSpawner {
      * @param delay The delay.
      */
     @Override
-    public void setDelay(int delay);
+    void setDelay(int delay);
 
     /**
      * The minimum spawn delay amount (in ticks).
@@ -32,7 +35,7 @@ public interface Spawner extends BaseSpawner {
      *
      * @return the minimum spawn delay amount
      */
-    public int getMinSpawnDelay();
+    int getMinSpawnDelay();
 
     /**
      * Set the minimum spawn delay amount (in ticks).
@@ -40,7 +43,7 @@ public interface Spawner extends BaseSpawner {
      * @param delay the minimum spawn delay amount
      * @see #getMinSpawnDelay()
      */
-    public void setMinSpawnDelay(int delay);
+    void setMinSpawnDelay(int delay);
 
     /**
      * The maximum spawn delay amount (in ticks).
@@ -56,7 +59,7 @@ public interface Spawner extends BaseSpawner {
      *
      * @return the maximum spawn delay amount
      */
-    public int getMaxSpawnDelay();
+    int getMaxSpawnDelay();
 
     /**
      * Set the maximum spawn delay amount (in ticks).
@@ -67,7 +70,7 @@ public interface Spawner extends BaseSpawner {
      * @param delay the new maximum spawn delay amount
      * @see #getMaxSpawnDelay()
      */
-    public void setMaxSpawnDelay(int delay);
+    void setMaxSpawnDelay(int delay);
 
     /**
      * Get how many mobs attempt to spawn.
@@ -76,27 +79,27 @@ public interface Spawner extends BaseSpawner {
      *
      * @return the current spawn count
      */
-    public int getSpawnCount();
+    int getSpawnCount();
 
     /**
      * Set how many mobs attempt to spawn.
      *
      * @param spawnCount the new spawn count
      */
-    public void setSpawnCount(int spawnCount);
+    void setSpawnCount(int spawnCount);
 
     /**
-     * Set the new maximum amount of similar entities that are allowed to be
+     * Get the maximum number of similar entities that are allowed to be
-     * within spawning range of this spawner.
+     * within the spawning range of this spawner.
      * <br>
      * If more than the maximum number of entities are within range, the spawner
      * will not spawn and try again with a new {@link #getDelay()}.
      * <br>
-     * Default value is 16.
+     * Default value is 6.
      *
      * @return the maximum number of nearby, similar, entities
      */
-    public int getMaxNearbyEntities();
+    int getMaxNearbyEntities();
 
     /**
      * Set the maximum number of similar entities that are allowed to be within
@@ -106,20 +109,19 @@ public interface Spawner extends BaseSpawner {
      *
      * @param maxNearbyEntities the maximum number of nearby, similar, entities
      */
-    public void setMaxNearbyEntities(int maxNearbyEntities);
+    void setMaxNearbyEntities(int maxNearbyEntities);
 
-    // Paper start
     /**
      * Check if spawner is activated (a player is close enough)
      *
      * @return True if a player is close enough to activate it
      */
-    public boolean isActivated();
+    boolean isActivated();
 
     /**
      * Resets the spawn delay timer within the min/max range
      */
-    public void resetTimer();
+    void resetTimer();
 
     /**
      * Sets the {@link EntityType} to {@link EntityType#ITEM} and sets the data to the given
@@ -128,9 +130,8 @@ public interface Spawner extends BaseSpawner {
      * {@link #setSpawnCount(int)} does not dictate the amount of items in the stack spawned, but rather how many
      * stacks should be spawned.
      *
-     * @param itemStack The item to spawn. Must not {@link org.bukkit.Material#isAir be air}.
+     * @param itemStack The item to spawn. Must not {@link ItemStack#isEmpty() be empty}.
      * @see #setSpawnedType(EntityType)
      */
-    void setSpawnedItem(org.bukkit.inventory.@org.jetbrains.annotations.NotNull ItemStack itemStack);
+    void setSpawnedItem(ItemStack itemStack);
-    // Paper end
 }

paper-server/build.gradle.kts

@@ -1,3 +1,4 @@
+import io.papermc.fill.model.BuildChannel
 import io.papermc.paperweight.attribute.DevBundleOutput
 import io.papermc.paperweight.util.*
 import io.papermc.paperweight.util.data.FileEntry
@@ -10,6 +11,7 @@ plugins {
     `maven-publish`
     idea
     id("io.papermc.paperweight.core")
+    id("io.papermc.fill.gradle") version "1.0.3"
 }
 
 val paperMavenPublicUrl = "https://repo.papermc.io/repository/maven-public/"
@@ -132,7 +134,7 @@ dependencies {
     implementation("org.jline:jline-terminal-ffm:3.27.1") // use ffm on java 22+
     implementation("org.jline:jline-terminal-jni:3.27.1") // fall back to jni on java 21
     implementation("net.minecrell:terminalconsoleappender:1.3.0")
-    implementation("net.kyori:adventure-text-serializer-ansi:4.21.0") // Keep in sync with adventureVersion from Paper-API build file
+    implementation("net.kyori:adventure-text-serializer-ansi:4.23.0") // Keep in sync with adventureVersion from Paper-API build file
     runtimeConfiguration(sourceSets.main.map { it.runtimeClasspath })
 
     /*
@@ -372,3 +374,20 @@ tasks.registerRunTask("runReobfPaperclip") {
     classpath(tasks.createReobfPaperclipJar.flatMap { it.outputZip })
     mainClass.set(null as String?)
 }
+
+fill {
+    project("paper")
+    versionFamily(paperweight.minecraftVersion.map { it.split(".", "-").takeWhile { part -> part.toIntOrNull() != null }.take(2).joinToString(".") })
+    version(paperweight.minecraftVersion)
+
+    build {
+        channel = BuildChannel.STABLE
+
+        downloads {
+            register("server:default") {
+                file = tasks.createMojmapPaperclipJar.flatMap { it.outputZip }
+                nameResolver.set { project, _, version, build -> "$project-$version-$build.jar" }
+            }
+        }
+    }
+}

paper-server/patches/features/0003-Entity-Activation-Range-2.0.patch

@@ -354,7 +354,7 @@ index 0000000000000000000000000000000000000000..ae2bb9a73106febfe5f0d090abd4252b
 +    }
 +}
 diff --git a/net/minecraft/server/level/ChunkMap.java b/net/minecraft/server/level/ChunkMap.java
-index 7b5ed00c9b2f22af5cbc44171192d674936dc7d7..5fe3c9a159908785e08fa874982bc1a82283bb1d 100644
+index d51645b115780dac9ff6010806e8bd62dedc8e9f..3faf1b5556c55f3468182f75b2dbff4aaa3aae3a 100644
 --- a/net/minecraft/server/level/ChunkMap.java
 +++ b/net/minecraft/server/level/ChunkMap.java
 @@ -4,7 +4,6 @@ import com.google.common.collect.ImmutableList;
@@ -484,7 +484,7 @@ index c70a58f5f633fa8e255f74c42f5e87c96b7b013a..ec20a5a6d7c8f65abda528fec36bec7b
      public void tick() {
          super.tick();
 diff --git a/net/minecraft/world/entity/Entity.java b/net/minecraft/world/entity/Entity.java
-index f961540a00bfb5e1c8eb0e739f8ae535e9eee8f3..7453ddb09f349b7836f966573e4933646a75cba6 100644
+index 75f81a6bc156a6455a616b8de0d7701fd2255a2d..b3d951670b3a097d04cfe347d7df496b1d0a0e09 100644
 --- a/net/minecraft/world/entity/Entity.java
 +++ b/net/minecraft/world/entity/Entity.java
 @@ -409,6 +409,15 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
@@ -661,10 +661,10 @@ index 3f780276be6766ef253c50212e06fd93a96b0caa..7e70c7bee633c54497d1cd2854dd60f4
                          }
                      }
 diff --git a/net/minecraft/world/entity/item/ItemEntity.java b/net/minecraft/world/entity/item/ItemEntity.java
-index 548d7c8dc517da6c4db86b11f579ae63e6db56cf..a29860af4c37b2b45df49f9ba18f7e38921dfb02 100644
+index fca31bbab8e7830933ceffcf992ff56ccc84414c..51804b611f469f2ab53e455e8c633b867b00cc88 100644
 --- a/net/minecraft/world/entity/item/ItemEntity.java
 +++ b/net/minecraft/world/entity/item/ItemEntity.java
-@@ -121,6 +121,29 @@ public class ItemEntity extends Entity implements TraceableEntity {
+@@ -129,6 +129,29 @@ public class ItemEntity extends Entity implements TraceableEntity {
          return 0.04;
      }
  
@@ -695,7 +695,7 @@ index 548d7c8dc517da6c4db86b11f579ae63e6db56cf..a29860af4c37b2b45df49f9ba18f7e38
      public void tick() {
          if (this.getItem().isEmpty()) {
 diff --git a/net/minecraft/world/entity/npc/Villager.java b/net/minecraft/world/entity/npc/Villager.java
-index b0607f4a9b35570b319423c7876bb904d5154e8e..98c8653647dc52059d8becfe38a74d4e62edf08f 100644
+index ef8347329b440833b45a54be2b6e4204ac0a425e..43f16df230f87a43e249a58fc10ef2da517f22ee 100644
 --- a/net/minecraft/world/entity/npc/Villager.java
 +++ b/net/minecraft/world/entity/npc/Villager.java
 @@ -269,11 +269,35 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
@@ -838,7 +838,7 @@ index 52acc72841f0c6980f5f3f8ef21d0b29dd472ce3..41a6ec508a10a49a37539d2f10171d15
 +
  }
 diff --git a/net/minecraft/world/level/Level.java b/net/minecraft/world/level/Level.java
-index d26e4d85d8fd8bd4f0c7de30b50a2ce370b37bf5..bab28e7afb7b1249d40631aabff16fc18cf95ea0 100644
+index 06069d3ac598f5f12feab038de4f1199794298f6..980eaba27ce2616c1573a4760cf4acc2dd251190 100644
 --- a/net/minecraft/world/level/Level.java
 +++ b/net/minecraft/world/level/Level.java
 @@ -143,6 +143,12 @@ public abstract class Level implements LevelAccessor, UUIDLookup<Entity>, AutoCl

paper-server/patches/features/0004-Anti-Xray.patch

@@ -5,10 +5,10 @@ Subject: [PATCH] Anti-Xray
 
 
 diff --git a/io/papermc/paper/FeatureHooks.java b/io/papermc/paper/FeatureHooks.java
-index 55cc0dec4a88baea17f160e95d5d8316e0bb7a50..338dc0fb07cdba5f7350cca332fa3e942c622bfb 100644
+index 811a8e5141f2061a185b53b63d951646141c0c7d..33d3eb510c5844e72bbc382bd24641aae080962d 100644
 --- a/io/papermc/paper/FeatureHooks.java
 +++ b/io/papermc/paper/FeatureHooks.java
-@@ -40,20 +40,25 @@ public final class FeatureHooks {
+@@ -45,20 +45,25 @@ public final class FeatureHooks {
      }
  
      public static LevelChunkSection createSection(final Registry<Biome> biomeRegistry, final Level level, final ChunkPos chunkPos, final int chunkSection) {

paper-server/patches/features/0006-Optimize-Collision-to-not-load-chunks.patch

@@ -14,17 +14,17 @@ movement will load only the chunk the player enters anyways and avoids loading
 massive amounts of surrounding chunks due to large AABB lookups.
 
 diff --git a/net/minecraft/world/entity/Entity.java b/net/minecraft/world/entity/Entity.java
-index 7453ddb09f349b7836f966573e4933646a75cba6..58eda0d6426f30cda604f4120f1ddb012316c108 100644
+index 23dfc87db1d5e90099270627197abc0f787a4393..27a01fd28ea565221768f31df02f0a2ddf242fce 100644
 --- a/net/minecraft/world/entity/Entity.java
 +++ b/net/minecraft/world/entity/Entity.java
-@@ -229,6 +229,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+@@ -230,6 +230,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
-     // Paper end - Share random for entities to make them more random
      public @Nullable org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason spawnReason; // Paper - Entity#getEntitySpawnReason
  
+     private volatile @Nullable org.bukkit.craftbukkit.entity.CraftEntity bukkitEntity; // Paper - Folia schedulers - volatile
 +    public boolean collisionLoadChunks = false; // Paper
-     private @Nullable org.bukkit.craftbukkit.entity.CraftEntity bukkitEntity;
  
      public org.bukkit.craftbukkit.entity.CraftEntity getBukkitEntity() {
+         if (this.bukkitEntity == null) {
 diff --git a/net/minecraft/world/level/BlockCollisions.java b/net/minecraft/world/level/BlockCollisions.java
 index ed6e4f9fd0c7ad1219e66bc1cb4038191dd6edd8..45a20dbb935b12d429153463dba5d6fd3385dd7a 100644
 --- a/net/minecraft/world/level/BlockCollisions.java

paper-server/patches/features/0015-Rewrite-dataconverter-system.patch

@@ -32481,7 +32481,7 @@ index 0000000000000000000000000000000000000000..b028017b9c44821a8a313a04e0b10f5d
 +    }
 +}
 diff --git a/ca/spottedleaf/moonrise/paper/PaperHooks.java b/ca/spottedleaf/moonrise/paper/PaperHooks.java
-index 0c611598a6912b692a7639301811ee557e2304f1..6f65564f6a6e99d6549de9a23a031b1f4a8a9798 100644
+index e4f0653c575c33b1ef8160b6c88e29ee9fb44508..b6a34796d33f1593301c3a67a013fa7e812cb329 100644
 --- a/ca/spottedleaf/moonrise/paper/PaperHooks.java
 +++ b/ca/spottedleaf/moonrise/paper/PaperHooks.java
 @@ -211,6 +211,43 @@ public final class PaperHooks extends BaseChunkSystemHooks implements PlatformHo
@@ -32542,7 +32542,7 @@ index 6536dc08c80170f5679acedd65cd2b9f6ad3fb3a..294cd15a796ad25823c8ccf98fbfae46
          return structureTemplate.save(new CompoundTag());
      }
 diff --git a/net/minecraft/server/MinecraftServer.java b/net/minecraft/server/MinecraftServer.java
-index 794a01ee70a2a30d91550f5265f774ba73828cf9..c716521fb1497dc8a22d827ddb50fc1cc21a05f4 100644
+index 2d597e50dcd957bd566c4da384fac5f36b5362f7..75aba65cbe1a943f21c7464ff9465e64f63e8e5b 100644
 --- a/net/minecraft/server/MinecraftServer.java
 +++ b/net/minecraft/server/MinecraftServer.java
 @@ -305,6 +305,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
@@ -32585,10 +32585,10 @@ index 8c1417c659ea0e079e99b9bfa79e1cf6ba9b712b..a8a32edea080f32fd25c9e009d4efa41
                  if (stopBelowZero) {
                      chunkData.putString("Status", net.minecraft.core.registries.BuiltInRegistries.CHUNK_STATUS.getKey(net.minecraft.world.level.chunk.status.ChunkStatus.SPAWN).toString());
 diff --git a/net/minecraft/world/level/chunk/storage/SimpleRegionStorage.java b/net/minecraft/world/level/chunk/storage/SimpleRegionStorage.java
-index 6be673172548c1382c7402ec4e1ec6ef51f702d3..18750f1ea3101b6c0ab0b8e33c304eb7fa1ed04d 100644
+index 6be673172548c1382c7402ec4e1ec6ef51f702d3..49be43ac896d60587511a97445c53c10c587a341 100644
 --- a/net/minecraft/world/level/chunk/storage/SimpleRegionStorage.java
 +++ b/net/minecraft/world/level/chunk/storage/SimpleRegionStorage.java
-@@ -32,13 +32,30 @@ public class SimpleRegionStorage implements AutoCloseable {
+@@ -32,13 +32,32 @@ public class SimpleRegionStorage implements AutoCloseable {
          return this.worker.store(chunkPos, data);
      }
  
@@ -32609,7 +32609,9 @@ index 6be673172548c1382c7402ec4e1ec6ef51f702d3..18750f1ea3101b6c0ab0b8e33c304eb7
 -        return this.dataFixType.updateToCurrentVersion(this.fixerUpper, tag, dataVersion);
 +        // Paper start - rewrite data conversion system
 +        final int dataVer = NbtUtils.getDataVersion(tag, version);
-+        return ca.spottedleaf.dataconverter.minecraft.MCDataConverter.convertTag(this.getDataConverterType(), tag, dataVer, ca.spottedleaf.dataconverter.minecraft.util.Version.getCurrentVersion());
++        final CompoundTag ret =  ca.spottedleaf.dataconverter.minecraft.MCDataConverter.convertTag(this.getDataConverterType(), tag, dataVer, ca.spottedleaf.dataconverter.minecraft.util.Version.getCurrentVersion());
++        NbtUtils.addCurrentDataVersion(ret); // Fix MC-299110
++        return ret;
 +        // Paper end - rewrite data conversion system
      }
  

paper-server/patches/features/0016-Moonrise-optimisation-patches.patch

@@ -23061,7 +23061,7 @@ index 0000000000000000000000000000000000000000..f1f72a051083b61273202cb4e67ecb11
 +    private SaveUtil() {}
 +}
 diff --git a/io/papermc/paper/FeatureHooks.java b/io/papermc/paper/FeatureHooks.java
-index 338dc0fb07cdba5f7350cca332fa3e942c622bfb..e1fe49e4bf014e2405708270efd81bab4e1512da 100644
+index b1a7af2dd3a3e166b1e58125f13ce08b9ec6d9ff..df6fbb35e5023b42de0b97434712e04a6b3e66a3 100644
 --- a/io/papermc/paper/FeatureHooks.java
 +++ b/io/papermc/paper/FeatureHooks.java
 @@ -1,6 +1,9 @@
@@ -23074,8 +23074,13 @@ index 338dc0fb07cdba5f7350cca332fa3e942c622bfb..e1fe49e4bf014e2405708270efd81bab
  import it.unimi.dsi.fastutil.longs.LongOpenHashSet;
  import it.unimi.dsi.fastutil.longs.LongSet;
  import it.unimi.dsi.fastutil.longs.LongSets;
-@@ -31,12 +34,16 @@ import org.bukkit.World;
+@@ -32,16 +35,20 @@ public final class FeatureHooks {
- public final class FeatureHooks {
+ 
+     // this includes non-accessible entities
+     public static Iterable<Entity> getAllEntities(final net.minecraft.server.level.ServerLevel world) {
+-        return ((net.minecraft.world.level.entity.LevelEntityGetterAdapter<Entity>)world.getEntities()).sectionStorage.getAllEntities();
++        return ((ca.spottedleaf.moonrise.patches.chunk_system.level.entity.EntityLookup)world.getEntities()).getAllMapped(); // Paper - rewrite chunk system
+     }
  
      public static void setPlayerChunkUnloadDelay(final long ticks) {
 +        ca.spottedleaf.moonrise.patches.chunk_system.player.RegionizedPlayerChunkLoader.setUnloadDelay(ticks); // Paper - rewrite chunk system
@@ -23091,7 +23096,7 @@ index 338dc0fb07cdba5f7350cca332fa3e942c622bfb..e1fe49e4bf014e2405708270efd81bab
      }
  
      public static LevelChunkSection createSection(final Registry<Biome> biomeRegistry, final Level level, final ChunkPos chunkPos, final int chunkSection) {
-@@ -62,111 +69,58 @@ public final class FeatureHooks {
+@@ -67,111 +74,58 @@ public final class FeatureHooks {
      }
  
      public static Set<Long> getSentChunkKeys(final ServerPlayer player) {
@@ -23224,7 +23229,7 @@ index 338dc0fb07cdba5f7350cca332fa3e942c622bfb..e1fe49e4bf014e2405708270efd81bab
  
              org.bukkit.Chunk chunk = null;
              for (net.minecraft.server.level.Ticket ticket : tickets) {
-@@ -186,15 +140,15 @@ public final class FeatureHooks {
+@@ -191,15 +145,15 @@ public final class FeatureHooks {
      }
  
      public static int getViewDistance(net.minecraft.server.level.ServerLevel world) {
@@ -23243,7 +23248,7 @@ index 338dc0fb07cdba5f7350cca332fa3e942c622bfb..e1fe49e4bf014e2405708270efd81bab
      }
  
      public static void setViewDistance(net.minecraft.server.level.ServerLevel world, int distance) {
-@@ -212,35 +166,31 @@ public final class FeatureHooks {
+@@ -217,35 +171,31 @@ public final class FeatureHooks {
      }
  
      public static void setSendViewDistance(net.minecraft.server.level.ServerLevel world, int distance) {
@@ -23286,6 +23291,7 @@ index 338dc0fb07cdba5f7350cca332fa3e942c622bfb..e1fe49e4bf014e2405708270efd81bab
      }
  
  }
+\ No newline at end of file
 diff --git a/io/papermc/paper/command/subcommands/ChunkDebugCommand.java b/io/papermc/paper/command/subcommands/ChunkDebugCommand.java
 new file mode 100644
 index 0000000000000000000000000000000000000000..2dca7afbd93cfbb8686f336fcd3b45dd01fba0fc
@@ -23861,7 +23867,7 @@ index 46de98a6bbbae48c4837e1e588ba198a363d2dde..fd3553bdc1c3cdbf6aa3dc00e0a4987f
                  thread1 -> {
                      DedicatedServer dedicatedServer1 = new DedicatedServer(
 diff --git a/net/minecraft/server/MinecraftServer.java b/net/minecraft/server/MinecraftServer.java
-index c716521fb1497dc8a22d827ddb50fc1cc21a05f4..80442494db670fec34df310390ea787fb963eef4 100644
+index 75aba65cbe1a943f21c7464ff9465e64f63e8e5b..32475c0958fd7e0f1f9b494b0cc78a4a718d12b8 100644
 --- a/net/minecraft/server/MinecraftServer.java
 +++ b/net/minecraft/server/MinecraftServer.java
 @@ -173,7 +173,7 @@ import net.minecraft.world.phys.Vec2;
@@ -23960,7 +23966,7 @@ index c716521fb1497dc8a22d827ddb50fc1cc21a05f4..80442494db670fec34df310390ea787f
              this.server.getPluginManager().callEvent(new org.bukkit.event.world.WorldLoadEvent(serverLevel.getWorld()));
          }
  
-@@ -844,6 +915,11 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -845,6 +916,11 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
      public abstract boolean shouldRconBroadcast();
  
      public boolean saveAllChunks(boolean suppressLog, boolean flush, boolean forced) {
@@ -23972,7 +23978,7 @@ index c716521fb1497dc8a22d827ddb50fc1cc21a05f4..80442494db670fec34df310390ea787f
          boolean flag = false;
  
          for (ServerLevel serverLevel : this.getAllLevels()) {
-@@ -851,7 +927,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -852,7 +928,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
                  LOGGER.info("Saving chunks for level '{}'/{}", serverLevel, serverLevel.dimension().location());
              }
  
@@ -23981,7 +23987,7 @@ index c716521fb1497dc8a22d827ddb50fc1cc21a05f4..80442494db670fec34df310390ea787f
              flag = true;
          }
  
-@@ -944,7 +1020,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -945,7 +1021,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
              }
          }
  
@@ -23990,7 +23996,7 @@ index c716521fb1497dc8a22d827ddb50fc1cc21a05f4..80442494db670fec34df310390ea787f
              this.nextTickTimeNanos = Util.getNanos() + TimeUtil.NANOSECONDS_PER_MILLISECOND;
  
              for (ServerLevel serverLevelx : this.getAllLevels()) {
-@@ -954,18 +1030,14 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -955,18 +1031,14 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
  
              this.waitUntilNextTick();
          }
@@ -24016,7 +24022,7 @@ index c716521fb1497dc8a22d827ddb50fc1cc21a05f4..80442494db670fec34df310390ea787f
  
          this.isSaving = false;
          this.resources.close();
-@@ -985,6 +1057,14 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -986,6 +1058,14 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
              this.getProfileCache().save(false); // Paper - Perf: Async GameProfileCache saving
          }
          // Spigot end
@@ -24031,7 +24037,7 @@ index c716521fb1497dc8a22d827ddb50fc1cc21a05f4..80442494db670fec34df310390ea787f
          // Paper start - Improved watchdog support - move final shutdown items here
          Util.shutdownExecutors();
          try {
-@@ -1169,6 +1249,13 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -1170,6 +1250,13 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
                      profilerFiller.push("tick");
                      this.tickFrame.start();
                      this.tickServer(flag ? () -> false : this::haveTime);
@@ -24045,7 +24051,7 @@ index c716521fb1497dc8a22d827ddb50fc1cc21a05f4..80442494db670fec34df310390ea787f
                      this.tickFrame.end();
                      profilerFiller.popPush("nextTickWait");
                      this.mayHaveDelayedTasks = true;
-@@ -1339,6 +1426,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -1340,6 +1427,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
  
      private boolean pollTaskInternal() {
          if (super.pollTask()) {
@@ -24053,7 +24059,7 @@ index c716521fb1497dc8a22d827ddb50fc1cc21a05f4..80442494db670fec34df310390ea787f
              return true;
          } else {
              boolean ret = false; // Paper - force execution of all worlds, do not just bias the first
-@@ -2468,6 +2556,12 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -2478,6 +2566,12 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
          }
      }
  
@@ -24067,7 +24073,7 @@ index c716521fb1497dc8a22d827ddb50fc1cc21a05f4..80442494db670fec34df310390ea787f
      // CraftBukkit start
      public boolean isDebugging() {
 diff --git a/net/minecraft/server/dedicated/DedicatedServer.java b/net/minecraft/server/dedicated/DedicatedServer.java
-index 5db176be3bd31eb886a541eeaee922ee30ee9908..5fea5e2e9fc10d348fa3e65cd354ef6a4a717a4d 100644
+index 4488d0a2f05ef07afab0f9a1483f54b21757b29e..98927d4a5fba2a0dcdb147ac10b82c3286ccdc6b 100644
 --- a/net/minecraft/server/dedicated/DedicatedServer.java
 +++ b/net/minecraft/server/dedicated/DedicatedServer.java
 @@ -391,7 +391,33 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
@@ -27685,7 +27691,7 @@ index 49008b4cbaead8a66a93d2b0d4b50b335a6c3eed..f9c96bbdc54e68b9216b7f8662bfae03
      }
  
 diff --git a/net/minecraft/server/level/ServerPlayer.java b/net/minecraft/server/level/ServerPlayer.java
-index 69dbff3f62e3a9ba7090156380f842bb44deebf8..c0b74d408340101bc3aac4cb4b7232c5cc78b08a 100644
+index 6f7f92cc43c56a7453b289f205502d089474ef6d..b390ba657b8b880e431c84e9dd948ac9c84af2fd 100644
 --- a/net/minecraft/server/level/ServerPlayer.java
 +++ b/net/minecraft/server/level/ServerPlayer.java
 @@ -193,7 +193,7 @@ import net.minecraft.world.scores.Team;
@@ -28722,7 +28728,7 @@ index 8cc5c0716392ba06501542ff5cbe71ee43979e5d..09fd99c9cbd23b5f3c899bfb00c9b896
 +    // Paper end - block counting
  }
 diff --git a/net/minecraft/world/entity/Entity.java b/net/minecraft/world/entity/Entity.java
-index fa2ffc44336c3ddfe576b202154f14ef91a301b9..7546ff4c5ffc62d93a3f874519db8fef1e3bfbcb 100644
+index 06d07f93e42edcfdd7d69df0b52efe2a58e7dfc1..da880f52920b1101f23ef94f3fd0dbdea218c373 100644
 --- a/net/minecraft/world/entity/Entity.java
 +++ b/net/minecraft/world/entity/Entity.java
 @@ -147,7 +147,7 @@ import net.minecraft.world.waypoints.WaypointTransmitter;
@@ -29430,7 +29436,7 @@ index fa2ffc44336c3ddfe576b202154f14ef91a301b9..7546ff4c5ffc62d93a3f874519db8fef
          if (!checkPosition(this, x, y, z)) {
              return;
          }
-@@ -4828,6 +5135,12 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+@@ -4818,6 +5125,12 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
  
      @Override
      public final void setRemoved(Entity.RemovalReason removalReason, @Nullable org.bukkit.event.entity.EntityRemoveEvent.Cause cause) { // CraftBukkit - add Bukkit remove cause
@@ -29443,7 +29449,7 @@ index fa2ffc44336c3ddfe576b202154f14ef91a301b9..7546ff4c5ffc62d93a3f874519db8fef
          org.bukkit.craftbukkit.event.CraftEventFactory.callEntityRemoveEvent(this, cause); // CraftBukkit
          final boolean alreadyRemoved = this.removalReason != null; // Paper - Folia schedulers
          if (this.removalReason == null) {
-@@ -4838,7 +5151,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+@@ -4828,7 +5141,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
              this.stopRiding();
          }
  
@@ -29452,7 +29458,7 @@ index fa2ffc44336c3ddfe576b202154f14ef91a301b9..7546ff4c5ffc62d93a3f874519db8fef
          this.levelCallback.onRemove(removalReason);
          this.onRemoval(removalReason);
          // Paper start - Folia schedulers
-@@ -4872,7 +5185,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+@@ -4862,7 +5175,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
      public boolean shouldBeSaved() {
          return (this.removalReason == null || this.removalReason.shouldSave())
              && !this.isPassenger()
@@ -34311,7 +34317,7 @@ index 15417fab103feec3c1f7d5bd5b332e89d3ace3f5..2e6263d8b466e0f61bc72eb818044734
      }
  }
 diff --git a/net/minecraft/world/level/chunk/storage/SimpleRegionStorage.java b/net/minecraft/world/level/chunk/storage/SimpleRegionStorage.java
-index 18750f1ea3101b6c0ab0b8e33c304eb7fa1ed04d..bf708ff89ea1f2c7279e48c41c4f44abc77ceebb 100644
+index 49be43ac896d60587511a97445c53c10c587a341..1b070cf7e3612dbcb170cf5d954eba5f5b3c777c 100644
 --- a/net/minecraft/world/level/chunk/storage/SimpleRegionStorage.java
 +++ b/net/minecraft/world/level/chunk/storage/SimpleRegionStorage.java
 @@ -14,7 +14,7 @@ import net.minecraft.util.datafix.DataFixTypes;
@@ -36675,10 +36681,10 @@ index c634d795644be86ad85395ffa39fbac33bf7418b..66d0a6390febe929ef774b0a78133290
  
              for (SavedTick<T> savedTick : this.pendingTicks) {
 diff --git a/net/minecraft/world/waypoints/WaypointTransmitter.java b/net/minecraft/world/waypoints/WaypointTransmitter.java
-index b579839c03b371d408e3750ec09af7da1d7bc9a0..9b41c62afc861847571ad739d1dd848b8276230c 100644
+index 47382efcd50f29601a6623876be50c4d047336c5..5d1c933dfa862d0733777d305563a89ea7827f07 100644
 --- a/net/minecraft/world/waypoints/WaypointTransmitter.java
 +++ b/net/minecraft/world/waypoints/WaypointTransmitter.java
-@@ -31,7 +31,10 @@ public interface WaypointTransmitter extends Waypoint {
+@@ -32,7 +32,10 @@ public interface WaypointTransmitter extends Waypoint {
      }
  
      static boolean isChunkVisible(ChunkPos pos, ServerPlayer player) {

paper-server/patches/features/0024-Incremental-chunk-and-player-saving.patch

@@ -5,10 +5,10 @@ Subject: [PATCH] Incremental chunk and player saving
 
 
 diff --git a/net/minecraft/server/MinecraftServer.java b/net/minecraft/server/MinecraftServer.java
-index 80442494db670fec34df310390ea787fb963eef4..2dd512565ab901bf853f34b384155902b0fe8120 100644
+index 338ef549efe82c250c74365c1c1071986920c8c9..39581095ccc69d113d954ed835bdfa32d25b5489 100644
 --- a/net/minecraft/server/MinecraftServer.java
 +++ b/net/minecraft/server/MinecraftServer.java
-@@ -954,7 +954,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -955,7 +955,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
          boolean var4;
          try {
              this.isSaving = true;
@@ -17,7 +17,7 @@ index 80442494db670fec34df310390ea787fb963eef4..2dd512565ab901bf853f34b384155902
              var4 = this.saveAllChunks(suppressLog, flush, forced);
          } finally {
              this.isSaving = false;
-@@ -1533,9 +1533,29 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -1534,9 +1534,29 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
          }
  
          this.ticksUntilAutosave--;

paper-server/patches/features/0028-Optimize-Hoppers.patch

@@ -48,10 +48,10 @@ index 0000000000000000000000000000000000000000..24a2090e068ad3c0d08705050944abdf
 +    }
 +}
 diff --git a/net/minecraft/server/MinecraftServer.java b/net/minecraft/server/MinecraftServer.java
-index 2dd512565ab901bf853f34b384155902b0fe8120..d6dcb6d146d89a8fb96e7c669e5deb802223abd6 100644
+index cff9d761dfee8a90b19fb2f3e678f99a39fc000c..0a260fdf6b198a8ab52e60bf6db2fb5eab719c48 100644
 --- a/net/minecraft/server/MinecraftServer.java
 +++ b/net/minecraft/server/MinecraftServer.java
-@@ -1708,6 +1708,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -1718,6 +1718,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
              serverLevel.hasPhysicsEvent = org.bukkit.event.block.BlockPhysicsEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper - BlockPhysicsEvent
              serverLevel.hasEntityMoveEvent = io.papermc.paper.event.entity.EntityMoveEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper - Add EntityMoveEvent
              serverLevel.updateLagCompensationTick(); // Paper - lag compensation

paper-server/patches/features/0032-Improve-keepalive-ping-system.patch

@@ -0,0 +1,204 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Tue, 24 Jun 2025 03:41:38 -0700
+Subject: [PATCH] Improve keepalive ping system
+
+Send more keepalives, record all transactions within the last minute.
+We send more keepalives so that the latency calculation is more
+accurate. Since we send more keepalives, we track all pending
+keepalives in case multiple end up in flight.
+
+Additionally, replace the latency calculation with a true
+average over the last 5 seconds of keepalive transactions.
+
+diff --git a/net/minecraft/server/level/ServerPlayer.java b/net/minecraft/server/level/ServerPlayer.java
+index 53f038e1b5e7a13a08a0c925c8bd3f8a40868195..f3eca351021c37b64315872d075bd0a84aeee267 100644
+--- a/net/minecraft/server/level/ServerPlayer.java
++++ b/net/minecraft/server/level/ServerPlayer.java
+@@ -461,6 +461,70 @@ public class ServerPlayer extends Player implements ca.spottedleaf.moonrise.patc
+         return this.viewDistanceHolder;
+     }
+     // Paper end - rewrite chunk system
++    // Paper start - improve keepalives
++    public long lastKeepAliveTx = System.nanoTime();
++    public static final record KeepAliveResponse(long txTimeNS, long rxTimeNS) {
++        public long latencyNS() {
++            return this.rxTimeNS - this.txTimeNS;
++        }
++    }
++    public static final record PendingKeepAlive(long txTimeNS, long challengeId) {}
++
++    public final ca.spottedleaf.concurrentutil.collection.MultiThreadedQueue<PendingKeepAlive> pendingKeepAlives = new ca.spottedleaf.concurrentutil.collection.MultiThreadedQueue<>();
++
++    public final PingCalculator pingCalculator1m = new PingCalculator(java.util.concurrent.TimeUnit.MINUTES.toNanos(1L));
++    public final PingCalculator pingCalculator5s = new PingCalculator(java.util.concurrent.TimeUnit.SECONDS.toNanos(5L));
++
++    public static final class PingCalculator {
++
++        private final long intervalNS;
++        private final ca.spottedleaf.concurrentutil.collection.MultiThreadedQueue<KeepAliveResponse> responses = new ca.spottedleaf.concurrentutil.collection.MultiThreadedQueue<>();
++
++        private long timeSumNS;
++        private int timeSumCount;
++        private volatile long lastAverageNS;
++
++        public PingCalculator(long intervalNS) {
++            this.intervalNS = intervalNS;
++        }
++
++        public void update(KeepAliveResponse response) {
++            long currTime = response.txTimeNS;
++
++            this.responses.add(response);
++
++            ++this.timeSumCount;
++            this.timeSumNS += response.latencyNS();
++
++            // remove out-of-window times
++            KeepAliveResponse removed;
++            while ((removed = this.responses.pollIf((ka) -> (currTime - ka.txTimeNS) > this.intervalNS)) != null) {
++                --this.timeSumCount;
++                this.timeSumNS -= removed.latencyNS();
++            }
++
++            this.lastAverageNS = this.timeSumNS / (long)this.timeSumCount;
++        }
++
++        public int getAvgLatencyMS() {
++            return (int)java.util.concurrent.TimeUnit.NANOSECONDS.toMillis(this.getAvgLatencyNS());
++        }
++
++        public long getAvgLatencyNS() {
++            return this.lastAverageNS;
++        }
++
++        public it.unimi.dsi.fastutil.longs.LongArrayList getAllNS() {
++            it.unimi.dsi.fastutil.longs.LongArrayList ret = new it.unimi.dsi.fastutil.longs.LongArrayList();
++
++            for (KeepAliveResponse response : this.responses) {
++                ret.add(response.latencyNS());
++            }
++
++            return ret;
++        }
++    }
++    // Paper end - improve keepalives
+ 
+     public ServerPlayer(MinecraftServer server, ServerLevel level, GameProfile gameProfile, ClientInformation clientInformation) {
+         super(level, gameProfile);
+diff --git a/net/minecraft/server/network/ServerCommonPacketListenerImpl.java b/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+index 85e01c3a1536b41a0301a5a6506e058ff9633a4a..43f70a5561d6cc62aaeba6d1e39598ecb382e369 100644
+--- a/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
++++ b/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+@@ -38,12 +38,12 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+     protected final MinecraftServer server;
+     public final Connection connection; // Paper
+     private final boolean transferred;
+-    private long keepAliveTime;
+-    private boolean keepAlivePending;
+-    private long keepAliveChallenge;
++    //private long keepAliveTime; // Paper - improve keepalives
++    //private boolean keepAlivePending; // Paper - improve keepalives
++    //private long keepAliveChallenge; // Paper - improve keepalives
+     private long closedListenerTime;
+     private boolean closed = false;
+-    private int latency;
++    private volatile int latency; // Paper - improve keepalives - make volatile
+     private volatile boolean suspendFlushingOnServerThread = false;
+     // CraftBukkit start
+     protected final net.minecraft.server.level.ServerPlayer player;
+@@ -57,7 +57,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+     public ServerCommonPacketListenerImpl(MinecraftServer server, Connection connection, CommonListenerCookie cookie, net.minecraft.server.level.ServerPlayer player) { // CraftBukkit
+         this.server = server;
+         this.connection = connection;
+-        this.keepAliveTime = Util.getMillis();
++        //this.keepAliveTime = Util.getMillis(); // Paper - improve keepalives
+         this.latency = cookie.latency();
+         this.transferred = cookie.transferred();
+         // CraftBukkit start - add fields and methods
+@@ -120,13 +120,41 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+ 
+     @Override
+     public void handleKeepAlive(ServerboundKeepAlivePacket packet) {
+-        if (this.keepAlivePending && packet.getId() == this.keepAliveChallenge) {
+-            int i = (int)(Util.getMillis() - this.keepAliveTime);
+-            this.latency = (this.latency * 3 + i) / 4;
+-            this.keepAlivePending = false;
+-        } else if (!this.isSingleplayerOwner()) {
+-            this.disconnectAsync(TIMEOUT_DISCONNECTION_MESSAGE, org.bukkit.event.player.PlayerKickEvent.Cause.TIMEOUT); // Paper - add proper async disconnect
++        // Paper start - improve keepalives
++        long now = System.nanoTime();
++        net.minecraft.server.level.ServerPlayer.PendingKeepAlive pending = this.player.pendingKeepAlives.peek();
++        if (pending != null && pending.challengeId() == packet.getId()) {
++            this.player.pendingKeepAlives.remove(pending);
++
++            net.minecraft.server.level.ServerPlayer.KeepAliveResponse response = new net.minecraft.server.level.ServerPlayer.KeepAliveResponse(pending.txTimeNS(), now);
++
++            this.player.pingCalculator1m.update(response);
++            this.player.pingCalculator5s.update(response);
++
++            this.latency = this.player.pingCalculator5s.getAvgLatencyMS();
++            return;
++        }
++
++        for (java.util.Iterator<net.minecraft.server.level.ServerPlayer.PendingKeepAlive> itr = this.player.pendingKeepAlives.iterator(); itr.hasNext();) {
++            net.minecraft.server.level.ServerPlayer.PendingKeepAlive ka = itr.next();
++            if (ka.challengeId() == packet.getId()) {
++                itr.remove();
++
++                if (!this.processedDisconnect) {
++                    LOGGER.info("Disconnecting " + this.player.getScoreboardName() + " for sending keepalive response (" + packet.getId() + ") out-of-order!");
++                    this.disconnectAsync(TIMEOUT_DISCONNECTION_MESSAGE, org.bukkit.event.player.PlayerKickEvent.Cause.TIMEOUT);
++                    return;
++                }
++                break;
++            }
+         }
++
++        if (!this.processedDisconnect) {
++            LOGGER.info("Disconnecting " + this.player.getScoreboardName() + " for sending keepalive response (" + packet.getId() + ") without matching challenge!");
++            this.disconnectAsync(TIMEOUT_DISCONNECTION_MESSAGE, org.bukkit.event.player.PlayerKickEvent.Cause.TIMEOUT);
++            return;
++        }
++        // Paper end - improve keepalives
+     }
+ 
+     @Override
+@@ -247,20 +275,23 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+     protected void keepConnectionAlive() {
+         Profiler.get().push("keepAlive");
+         long millis = Util.getMillis();
+-        // Paper start - give clients a longer time to respond to pings as per pre 1.12.2 timings
+-        // This should effectively place the keepalive handling back to "as it was" before 1.12.2
+-        final long elapsedTime = millis - this.keepAliveTime;
+-        if (!this.isSingleplayerOwner() && elapsedTime >= 15000L) { // use vanilla's 15000L between keep alive packets
+-            if (this.keepAlivePending) {
+-                if (!this.processedDisconnect && elapsedTime >= KEEPALIVE_LIMIT) { // check keepalive limit, don't fire if already disconnected
+-                    this.disconnect(TIMEOUT_DISCONNECTION_MESSAGE, org.bukkit.event.player.PlayerKickEvent.Cause.TIMEOUT); // Paper - kick event cause
+-                }
+-                // Paper end - give clients a longer time to respond to pings as per pre 1.12.2 timings
+-            } else if (this.checkIfClosed(millis)) {
+-                this.keepAlivePending = true;
+-                this.keepAliveTime = millis;
+-                this.keepAliveChallenge = millis;
+-                this.send(new ClientboundKeepAlivePacket(this.keepAliveChallenge));
++        // Paper start - improve keepalives
++        if (this.checkIfClosed(millis) && !this.processedDisconnect) {
++            long currTime = System.nanoTime();
++
++            if ((currTime - this.player.lastKeepAliveTx) >= java.util.concurrent.TimeUnit.SECONDS.toNanos(1L)) {
++                this.player.lastKeepAliveTx = currTime;
++
++                net.minecraft.server.level.ServerPlayer.PendingKeepAlive pka = new net.minecraft.server.level.ServerPlayer.PendingKeepAlive(currTime, millis);
++                this.player.pendingKeepAlives.add(pka);
++                this.send(new ClientboundKeepAlivePacket(pka.challengeId()));
++            }
++
++            net.minecraft.server.level.ServerPlayer.PendingKeepAlive oldest = this.player.pendingKeepAlives.peek();
++            if (oldest != null && (currTime - oldest.txTimeNS()) > java.util.concurrent.TimeUnit.MILLISECONDS.toNanos(KEEPALIVE_LIMIT)) {
++                LOGGER.warn(this.player.getScoreboardName() + " was kicked due to keepalive timeout!");
++                this.disconnect(TIMEOUT_DISCONNECTION_MESSAGE, org.bukkit.event.player.PlayerKickEvent.Cause.TIMEOUT);
++                // Paper end - improve keepalives
+             }
+         }
+ 

paper-server/patches/features/0033-Optimise-EntityScheduler-ticking.patch

@@ -0,0 +1,84 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Tue, 24 Jun 2025 07:05:51 -0700
+Subject: [PATCH] Optimise EntityScheduler ticking
+
+The vast majority of the time, there are no tasks scheduled to
+the EntityScheduler. We can avoid iterating the entire entity list
+by tracking which schedulers have any tasks scheduled.
+
+diff --git a/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/server/ServerEntityLookup.java b/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/server/ServerEntityLookup.java
+index 5f2deeb5cc01d8bbeb7449bd4e59c466b3dfdf57..82824ae7ffbced513a8bcace684af94916135e84 100644
+--- a/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/server/ServerEntityLookup.java
++++ b/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/server/ServerEntityLookup.java
+@@ -96,6 +96,7 @@ public final class ServerEntityLookup extends EntityLookup {
+         if (entity instanceof ThrownEnderpearl enderpearl) {
+             this.addEnderPearl(CoordinateUtils.getChunkKey(enderpearl.chunkPosition()));
+         }
++        entity.registerScheduler(); // Paper - optimise Folia entity scheduler
+     }
+ 
+     @Override
+diff --git a/net/minecraft/server/MinecraftServer.java b/net/minecraft/server/MinecraftServer.java
+index 0a260fdf6b198a8ab52e60bf6db2fb5eab719c48..52fa5112cd90ba766c94512a02401dd3aee82cc9 100644
+--- a/net/minecraft/server/MinecraftServer.java
++++ b/net/minecraft/server/MinecraftServer.java
+@@ -1654,33 +1654,22 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+         }
+     }
+ 
++    public final io.papermc.paper.threadedregions.EntityScheduler.EntitySchedulerTickList entitySchedulerTickList = new io.papermc.paper.threadedregions.EntityScheduler.EntitySchedulerTickList(); // Paper - optimise Folia entity scheduler
++
+     protected void tickChildren(BooleanSupplier hasTimeLeft) {
+         ProfilerFiller profilerFiller = Profiler.get();
+         this.getPlayerList().getPlayers().forEach(serverPlayer1 -> serverPlayer1.connection.suspendFlushing());
+         this.server.getScheduler().mainThreadHeartbeat(); // CraftBukkit
+-        // Paper start - Folia scheduler API
+-        ((io.papermc.paper.threadedregions.scheduler.FoliaGlobalRegionScheduler) org.bukkit.Bukkit.getGlobalRegionScheduler()).tick();
+-        for (ServerPlayer player : this.playerList.players) {
+-            if (!this.playerList.players.contains(player)) {
++        // Paper start - optimise Folia entity scheduler
++        ((io.papermc.paper.threadedregions.scheduler.FoliaGlobalRegionScheduler)org.bukkit.Bukkit.getGlobalRegionScheduler()).tick();
++        for (io.papermc.paper.threadedregions.EntityScheduler scheduler : this.entitySchedulerTickList.getAllSchedulers()) {
++            if (scheduler.isRetired()) {
+                 continue;
+             }
+-            final org.bukkit.craftbukkit.entity.CraftEntity bukkit = player.getBukkitEntityRaw();
+-            if (bukkit != null) {
+-                bukkit.taskScheduler.executeTick();
+-            }
++
++            scheduler.executeTick();
+         }
+-        getAllLevels().forEach(level -> {
+-            for (final net.minecraft.world.entity.Entity entity : io.papermc.paper.FeatureHooks.getAllEntities(level)) {
+-                if (entity.isRemoved() || entity instanceof ServerPlayer) {
+-                    continue;
+-                }
+-                final org.bukkit.craftbukkit.entity.CraftEntity bukkit = entity.getBukkitEntityRaw();
+-                if (bukkit != null) {
+-                    bukkit.taskScheduler.executeTick();
+-                }
+-            }
+-        });
+-        // Paper end - Folia scheduler API
++        // Paper end - optimise Folia entity scheduler
+         io.papermc.paper.adventure.providers.ClickCallbackProviderImpl.CALLBACK_MANAGER.handleQueue(this.tickCount); // Paper
+         profilerFiller.push("commandFunctions");
+         this.getFunctions().tick();
+diff --git a/net/minecraft/world/entity/Entity.java b/net/minecraft/world/entity/Entity.java
+index da880f52920b1101f23ef94f3fd0dbdea218c373..3d2c0a4d3a1f9d3e5cc6cd0cdb988ae1205de821 100644
+--- a/net/minecraft/world/entity/Entity.java
++++ b/net/minecraft/world/entity/Entity.java
+@@ -5165,6 +5165,11 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+         this.getBukkitEntity().taskScheduler.retire();
+     }
+     // Paper end - Folia schedulers
++    // Paper start - optimise Folia entity scheduler
++    public final void registerScheduler() {
++        this.getBukkitEntity().taskScheduler.registerTo(net.minecraft.server.MinecraftServer.getServer().entitySchedulerTickList);
++    }
++    // Paper end - optimise Folia entity scheduler
+ 
+     @Override
+     public void setLevelCallback(EntityInLevelCallback levelCallback) {

paper-server/patches/sources/io/papermc/paper/FeatureHooks.java.patch

@@ -1,6 +1,6 @@
 --- /dev/null
 +++ b/io/papermc/paper/FeatureHooks.java
-@@ -1,0 +_,241 @@
+@@ -1,0 +_,246 @@
 +package io.papermc.paper;
 +
 +import io.papermc.paper.command.PaperSubcommand;
@@ -33,6 +33,11 @@
 +
 +public final class FeatureHooks {
 +
++    // this includes non-accessible entities
++    public static Iterable<Entity> getAllEntities(final net.minecraft.server.level.ServerLevel world) {
++        return ((net.minecraft.world.level.entity.LevelEntityGetterAdapter<Entity>)world.getEntities()).sectionStorage.getAllEntities();
++    }
++
 +    public static void setPlayerChunkUnloadDelay(final long ticks) {
 +    }
 +

paper-server/patches/sources/net/minecraft/commands/Commands.java.patch

@@ -1,6 +1,13 @@
 --- a/net/minecraft/commands/Commands.java
 +++ b/net/minecraft/commands/Commands.java
-@@ -176,6 +_,11 @@
+@@ -170,12 +_,18 @@
+ 
+         @Override
+         public boolean isRestricted(CommandNode<CommandSourceStack> node) {
++            if (node.getRequirement() instanceof PermissionSource.RestrictedMarker) return true; // Paper - restricted api
+             return node.getRequirement() instanceof PermissionCheck<?> permissionCheck && permissionCheck.requiredLevel() > 0;
+         }
+     };
      private final CommandDispatcher<CommandSourceStack> dispatcher = new CommandDispatcher<>();
  
      public Commands(Commands.CommandSelection selection, CommandBuildContext context) {
@@ -55,76 +62,29 @@
          this.dispatcher.setConsumer(ExecutionCommandSource.resultConsumer());
      }
  
-@@ -289,9 +_,41 @@
+@@ -299,6 +_,13 @@
-         return new ParseResults<>(commandContextBuilder, parseResults.getReader(), parseResults.getExceptions());
-     }
- 
-+    // CraftBukkit start
-+    public void dispatchServerCommand(CommandSourceStack sender, String command) {
-+        com.google.common.base.Joiner joiner = com.google.common.base.Joiner.on(" ");
-+        if (command.startsWith("/")) {
-+            command = command.substring(1);
-+        }
-+
-+        org.bukkit.event.server.ServerCommandEvent event = new org.bukkit.event.server.ServerCommandEvent(sender.getBukkitSender(), command);
-+        org.bukkit.Bukkit.getPluginManager().callEvent(event);
-+        if (event.isCancelled()) {
-+            return;
-+        }
-+        command = event.getCommand();
-+
-+        String[] args = command.split(" ");
-+        if (args.length == 0) return; // Paper - empty commands shall not be dispatched
-+
-+        // Paper - Fix permission levels for command blocks
-+
-+        // Handle vanilla commands; // Paper - handled in CommandNode/CommandDispatcher
-+
-+        String newCommand = joiner.join(args);
-+        this.performPrefixedCommand(sender, newCommand, newCommand);
-+    }
-+    // CraftBukkit end
-+
-     public void performPrefixedCommand(CommandSourceStack source, String command) {
-+        // CraftBukkit start
-+        this.performPrefixedCommand(source, command, command);
-+    }
-+
-+    public void performPrefixedCommand(CommandSourceStack source, String command, String label) {
-         command = trimOptionalPrefix(command);
--        this.performCommand(this.dispatcher.parse(command, source), command);
-+        this.performCommand(this.dispatcher.parse(command, source), command, label);
-+        // CraftBukkit end
-     }
- 
-     public static String trimOptionalPrefix(String command) {
-@@ -299,9 +_,20 @@
      }
  
      public void performCommand(ParseResults<CommandSourceStack> parseResults, String command) {
-+        // CraftBukkit start
++        // Paper start
-+        this.performCommand(parseResults, command, command);
++        this.performCommand(parseResults, command, false);
 +    }
 +
-+    public void performCommand(ParseResults<CommandSourceStack> parseResults, String command, String label) {
++    public void performCommand(ParseResults<CommandSourceStack> parseResults, String command, boolean throwCommandError) {
-+        // CraftBukkit end
++        org.spigotmc.AsyncCatcher.catchOp("Cannot perform command async");
-+        // Paper start
-+        this.performCommand(parseResults, command, label, false);
-+    }
-+    public void performCommand(ParseResults<CommandSourceStack> parseResults, String command, String label, boolean throwCommandError) {
 +        // Paper end
          CommandSourceStack commandSourceStack = parseResults.getContext().getSource();
          Profiler.get().push(() -> "/" + command);
--        ContextChain<CommandSourceStack> contextChain = finishParsing(parseResults, command, commandSourceStack);
+         ContextChain<CommandSourceStack> contextChain = finishParsing(parseResults, command, commandSourceStack);
-+        ContextChain contextChain = this.finishParsing(parseResults, command, commandSourceStack, label); // CraftBukkit // Paper - Add UnknownCommandEvent
+@@ -312,10 +_,13 @@
- 
+                     )
-         try {
-             if (contextChain != null) {
-@@ -313,9 +_,10 @@
                  );
              }
-         } catch (Exception var12) {
+-        } catch (Exception var12) {
-+            if (throwCommandError) throw var12; // Paper
++            // Paper start
++        } catch (Throwable var12) { // always gracefully handle it, no matter how bad:tm:
++            if (throwCommandError) throw var12; // rethrow directly if requested
++            // Paper end
              MutableComponent mutableComponent = Component.literal(var12.getMessage() == null ? var12.getClass().getName() : var12.getMessage());
 -            if (LOGGER.isDebugEnabled()) {
 -                LOGGER.error("Command exception: /{}", command, var12);
@@ -133,12 +93,12 @@
                  StackTraceElement[] stackTrace = var12.getStackTrace();
  
                  for (int i = 0; i < Math.min(stackTrace.length, 3); i++) {
-@@ -341,18 +_,22 @@
+@@ -341,13 +_,17 @@
      }
  
      @Nullable
 -    private static ContextChain<CommandSourceStack> finishParsing(ParseResults<CommandSourceStack> parseResults, String command, CommandSourceStack source) {
-+    private ContextChain<CommandSourceStack> finishParsing(ParseResults<CommandSourceStack> parseResults, String command, CommandSourceStack source, String label) { // CraftBukkit // Paper - Add UnknownCommandEvent
++    private ContextChain<CommandSourceStack> finishParsing(ParseResults<CommandSourceStack> parseResults, String command, CommandSourceStack source) {
          try {
              validateParseResults(parseResults);
              return ContextChain.tryFlatten(parseResults.getContext().build(command))
@@ -153,12 +113,6 @@
              if (var7.getInput() != null && var7.getCursor() >= 0) {
                  int min = Math.min(var7.getInput().length(), var7.getCursor());
                  MutableComponent mutableComponent = Component.empty()
-                     .withStyle(ChatFormatting.GRAY)
--                    .withStyle(style -> style.withClickEvent(new ClickEvent.SuggestCommand("/" + command)));
-+                    .withStyle(style -> style.withClickEvent(new ClickEvent.SuggestCommand("/" + label))); // CraftBukkit // Paper
-                 if (min > 10) {
-                     mutableComponent.append(CommonComponents.ELLIPSIS);
-                 }
 @@ -364,7 +_,17 @@
                  }
  

paper-server/patches/sources/net/minecraft/commands/PermissionSource.java.patch

@@ -1,16 +1,18 @@
 --- a/net/minecraft/commands/PermissionSource.java
 +++ b/net/minecraft/commands/PermissionSource.java
-@@ -9,9 +_,20 @@
+@@ -9,9 +_,22 @@
          return this.hasPermission(2);
      }
  
 -    public record Check<T extends PermissionSource>(@Override int requiredLevel) implements PermissionCheck<T> {
-+    public record Check<T extends PermissionSource>(@Override int requiredLevel, java.util.concurrent.atomic.AtomicReference<com.mojang.brigadier.tree.CommandNode<CommandSourceStack>> vanillaNode) implements PermissionCheck<T> { // Paper
++    // Paper start - Vanilla Command permission checking & expose restricted API
-+        // Paper start - Vanilla Command permission checking
++    interface RestrictedMarker { }
++
++    public record Check<T extends PermissionSource>(@Override int requiredLevel, java.util.concurrent.atomic.AtomicReference<com.mojang.brigadier.tree.CommandNode<CommandSourceStack>> vanillaNode) implements PermissionCheck<T> {
 +        public Check(int requiredLevel) {
 +            this(requiredLevel, new java.util.concurrent.atomic.AtomicReference<>());
 +        }
-+        // Paper end - Vanilla Command permission checking
++    // Paper end - Vanilla Command permission checking & expose restricted API
          @Override
          public boolean test(T source) {
 +            // Paper start - Vanilla Command permission checking

paper-server/patches/sources/net/minecraft/network/protocol/game/VecDeltaCodec.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/network/protocol/game/VecDeltaCodec.java
 +++ b/net/minecraft/network/protocol/game/VecDeltaCodec.java
-@@ -5,16 +_,16 @@
+@@ -5,7 +_,7 @@
  
  public class VecDeltaCodec {
      private static final double TRUNCATION_STEPS = 4096.0;
@@ -9,14 +9,3 @@
  
      @VisibleForTesting
      static long encode(double value) {
--        return Math.round(value * 4096.0);
-+        return Math.round(value * 4096.0); // Paper - Fix MC-4; diff on change
-     }
- 
-     @VisibleForTesting
-     static double decode(long value) {
--        return value / 4096.0;
-+        return value / 4096.0; // Paper - Fix MC-4; diff on change
-     }
- 
-     public Vec3 decode(long x, long y, long z) {

paper-server/patches/sources/net/minecraft/server/MinecraftServer.java.patch

@@ -172,7 +172,7 @@
          if (profiledDuration != null) {
              profiledDuration.finish(true);
          }
-@@ -364,25 +_,265 @@
+@@ -364,25 +_,266 @@
      protected void forceDifficulty() {
      }
  
@@ -439,6 +439,7 @@
 +        if (io.papermc.paper.plugin.PluginInitializerManager.instance().pluginRemapper != null) io.papermc.paper.plugin.PluginInitializerManager.instance().pluginRemapper.pluginsEnabled(); // Paper - Remap plugins
 +        io.papermc.paper.command.brigadier.PaperCommands.INSTANCE.setValid(); // Paper - reset invalid state for event fire below
 +        io.papermc.paper.plugin.lifecycle.event.LifecycleEventRunner.INSTANCE.callReloadableRegistrarEvent(io.papermc.paper.plugin.lifecycle.event.types.LifecycleEvents.COMMANDS, io.papermc.paper.command.brigadier.PaperCommands.INSTANCE, org.bukkit.plugin.Plugin.class, io.papermc.paper.plugin.lifecycle.event.registrar.ReloadableRegistrarEvent.Cause.INITIAL); // Paper - call commands event for regular plugins
++        this.server.getCommandMap().registerServerAliases(); // Paper - relocate initial CommandMap#registerServerAliases() call
 +        ((org.bukkit.craftbukkit.help.SimpleHelpMap) this.server.getHelpMap()).initializeCommands();
 +        this.server.getPluginManager().callEvent(new org.bukkit.event.server.ServerLoadEvent(org.bukkit.event.server.ServerLoadEvent.LoadType.STARTUP));
 +        this.connection.acceptConnections();
@@ -983,16 +984,25 @@
              ObjectArrayList<GameProfile> list = new ObjectArrayList<>(min);
              int randomInt = Mth.nextInt(this.random, 0, players.size() - min);
  
-@@ -1040,17 +_,66 @@
+@@ -1040,17 +_,75 @@
      protected void tickChildren(BooleanSupplier hasTimeLeft) {
          ProfilerFiller profilerFiller = Profiler.get();
          this.getPlayerList().getPlayers().forEach(serverPlayer1 -> serverPlayer1.connection.suspendFlushing());
 +        this.server.getScheduler().mainThreadHeartbeat(); // CraftBukkit
 +        // Paper start - Folia scheduler API
 +        ((io.papermc.paper.threadedregions.scheduler.FoliaGlobalRegionScheduler) org.bukkit.Bukkit.getGlobalRegionScheduler()).tick();
++        for (ServerPlayer player : this.playerList.players) {
++            if (!this.playerList.players.contains(player)) {
++                continue;
++            }
++            final org.bukkit.craftbukkit.entity.CraftEntity bukkit = player.getBukkitEntityRaw();
++            if (bukkit != null) {
++                bukkit.taskScheduler.executeTick();
++            }
++        }
 +        getAllLevels().forEach(level -> {
-+            for (final net.minecraft.world.entity.Entity entity : level.getEntities().getAll()) {
++            for (final net.minecraft.world.entity.Entity entity : io.papermc.paper.FeatureHooks.getAllEntities(level)) {
-+                if (entity.isRemoved()) {
++                if (entity.isRemoved() || entity instanceof ServerPlayer) {
 +                    continue;
 +                }
 +                final org.bukkit.craftbukkit.entity.CraftEntity bukkit = entity.getBukkitEntityRaw();

paper-server/patches/sources/net/minecraft/server/dedicated/DedicatedServer.java.patch

@@ -273,7 +273,7 @@
      }
  
      @Override
-@@ -291,13 +_,23 @@
+@@ -291,12 +_,20 @@
      }
  
      public void handleConsoleInput(String msg, CommandSourceStack source) {
@@ -284,23 +284,19 @@
      public void handleConsoleInputs() {
 -        while (!this.consoleInput.isEmpty()) {
 -            ConsoleInput consoleInput = this.consoleInput.remove(0);
--            this.getCommands().performPrefixedCommand(consoleInput.source, consoleInput.msg);
 +        // Paper start - Perf: use proper queue
-+        ConsoleInput servercommand;
++        ConsoleInput consoleInput;
-+        while ((servercommand = this.serverCommandQueue.poll()) != null) {
++        while ((consoleInput = this.serverCommandQueue.poll()) != null) {
 +            // Paper end - Perf: use proper queue
 +            // CraftBukkit start - ServerCommand for preprocessing
-+            org.bukkit.event.server.ServerCommandEvent event = new org.bukkit.event.server.ServerCommandEvent(this.console, servercommand.msg);
++            org.bukkit.event.server.ServerCommandEvent event = new org.bukkit.event.server.ServerCommandEvent(this.console, consoleInput.msg);
 +            this.server.getPluginManager().callEvent(event);
 +            if (event.isCancelled()) continue;
-+            servercommand = new ConsoleInput(event.getCommand(), servercommand.source);
++            consoleInput = new ConsoleInput(event.getCommand(), consoleInput.source);
-+
-+            // this.getCommands().performPrefixedCommand(servercommand.source, servercommand.msg); // Called in dispatchServerCommand
-+            this.server.dispatchServerCommand(this.console, servercommand);
 +            // CraftBukkit end
+             this.getCommands().performPrefixedCommand(consoleInput.source, consoleInput.msg);
          }
      }
- 
 @@ -430,7 +_,11 @@
      @Override
      public boolean enforceSecureProfile() {
@@ -314,7 +310,7 @@
      }
  
      @Override
-@@ -515,14 +_,54 @@
+@@ -515,14 +_,53 @@
  
      @Override
      public String getPluginNames() {
@@ -365,8 +361,7 @@
 +            if (event.isCancelled()) {
 +                return;
 +            }
-+            ConsoleInput serverCommand = new ConsoleInput(event.getCommand(), wrapper);
++            this.getCommands().performPrefixedCommand(wrapper, event.getCommand());
-+            this.server.dispatchServerCommand(event.getSender(), serverCommand);
 +        });
 +        return rconConsoleSource.getCommandResponse();
 +        // CraftBukkit end

paper-server/patches/sources/net/minecraft/server/level/ServerPlayer.java.patch

@@ -1334,7 +1334,8 @@
          if (traceItem) {
 -            ItemStack itemStack = itemEntity != null ? itemEntity.getItem() : ItemStack.EMPTY;
              if (!itemStack.isEmpty()) {
-                 this.awardStat(Stats.ITEM_DROPPED.get(itemStack.getItem()), droppedItem.getCount());
+-                this.awardStat(Stats.ITEM_DROPPED.get(itemStack.getItem()), droppedItem.getCount());
++                this.awardStat(Stats.ITEM_DROPPED.get(itemStack.getItem()), itemStack.getCount()); // Paper - use size from dropped item
                  this.awardStat(Stats.DROP);
              }
          }

paper-server/patches/sources/net/minecraft/server/network/ServerCommonPacketListenerImpl.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
 +++ b/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
-@@ -29,30 +_,67 @@
+@@ -29,14 +_,14 @@
  import net.minecraft.util.profiling.Profiler;
  import org.slf4j.Logger;
  
@@ -15,11 +15,9 @@
 -    protected final Connection connection;
 +    public final Connection connection; // Paper
      private final boolean transferred;
--    private long keepAliveTime;
+     private long keepAliveTime;
-+    private long keepAliveTime = Util.getMillis(); // Paper
      private boolean keepAlivePending;
-     private long keepAliveChallenge;
+@@ -45,14 +_,51 @@
-     private long closedListenerTime;
      private boolean closed = false;
      private int latency;
      private volatile boolean suspendFlushingOnServerThread = false;

paper-server/patches/sources/net/minecraft/server/network/ServerGamePacketListenerImpl.java.patch

@@ -295,7 +295,7 @@
  
                  rootVehicle.absSnapTo(d, d1, d2, f, f1);
 +                // CraftBukkit start - fire PlayerMoveEvent TODO: this should be removed.
-+                this.player.absSnapTo(x, y, z, this.player.getYRot(), this.player.getXRot()); // Paper - TODO: This breaks alot of stuff
++                this.player.absSnapTo(d, d1, d2, this.player.getYRot(), this.player.getXRot()); // Paper - TODO: This breaks alot of stuff
 +                org.bukkit.entity.Player player = this.getCraftPlayer();
 +                if (!this.hasMoved) {
 +                    this.lastPosX = prevX;
@@ -1146,8 +1146,7 @@
  
                      return;
                  case RELEASE_USE_ITEM:
--                    this.player.releaseUsingItem();
+                     this.player.releaseUsingItem();
-+                    if (this.player.getUseItem() == this.player.getItemInHand(this.player.getUsedItemHand())) this.player.releaseUsingItem(); // Paper - validate use item before processing release
 +                    if (io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.updateEquipmentOnPlayerActions) this.player.detectEquipmentUpdates(); // Paper - Force update attributes.
                      return;
                  case START_DESTROY_BLOCK:
@@ -2610,7 +2609,7 @@
          if (!this.receivedMovementThisTick) {
              this.player.setKnownMovement(Vec3.ZERO);
          }
-@@ -2078,4 +_,17 @@
+@@ -2078,4 +_,29 @@
      interface EntityInteraction {
          InteractionResult run(ServerPlayer player, Entity entity, InteractionHand hand);
      }
@@ -2627,4 +2626,16 @@
 +        return event;
 +    }
 +    // Paper end - Add fail move event
++
++    // Paper start - Implement click callbacks with custom click action
++    @Override
++    public void handleCustomClickAction(final net.minecraft.network.protocol.common.ServerboundCustomClickActionPacket packet) {
++        super.handleCustomClickAction(packet);
++        if (packet.id().equals(io.papermc.paper.adventure.providers.ClickCallbackProviderImpl.CLICK_CALLBACK_RESOURCE_LOCATION)) {
++            packet.payload().ifPresent(tag ->
++                io.papermc.paper.adventure.providers.ClickCallbackProviderImpl.CALLBACK_MANAGER.tryRunCallback(this.player.getBukkitEntity(), tag)
++            );
++        }
++    }
++    // Paper end - Implement click callbacks with custom click action
  }

paper-server/patches/sources/net/minecraft/world/entity/Entity.java.patch

@@ -85,7 +85,7 @@
 +    // Paper end - Share random for entities to make them more random
 +    public @Nullable org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason spawnReason; // Paper - Entity#getEntitySpawnReason
 +
-+    private @Nullable org.bukkit.craftbukkit.entity.CraftEntity bukkitEntity;
++    private volatile @Nullable org.bukkit.craftbukkit.entity.CraftEntity bukkitEntity; // Paper - Folia schedulers - volatile
 +
 +    public org.bukkit.craftbukkit.entity.CraftEntity getBukkitEntity() {
 +        if (this.bukkitEntity == null) {
@@ -1786,7 +1786,7 @@
      }
  
      public void addDeltaMovement(Vec3 addend) {
-@@ -3661,9 +_,45 @@
+@@ -3661,9 +_,35 @@
          return this.getZ((2.0 * this.random.nextDouble() - 1.0) * scale);
      }
  
@@ -1815,16 +1815,6 @@
 +            return;
 +        }
 +        // Paper end - Block invalid positions and bounding box
-+        // Paper start - Fix MC-4
-+        if (this instanceof ItemEntity) {
-+            if (io.papermc.paper.configuration.GlobalConfiguration.get().misc.fixEntityPositionDesync) {
-+                // encode/decode from VecDeltaCodec todo computation changed?
-+                x = Mth.lfloor(x * 4096.0) * (1 / 4096.0);
-+                y = Mth.lfloor(y * 4096.0) * (1 / 4096.0);
-+                z = Mth.lfloor(z * 4096.0) * (1 / 4096.0);
-+            }
-+        }
-+        // Paper end - Fix MC-4
          if (this.position.x != x || this.position.y != y || this.position.z != z) {
 +            synchronized (this.posLock) { // Paper - detailed watchdog information
              this.position = new Vec3(x, y, z);

paper-server/patches/sources/net/minecraft/world/entity/decoration/LeashFenceKnotEntity.java.patch

@@ -27,3 +27,25 @@
          }
      }
  
+@@ -120,7 +_,12 @@
+         return this.level().getBlockState(this.pos).is(BlockTags.FENCES);
+     }
+ 
++    // Paper start - Track if a knot was created
+     public static LeashFenceKnotEntity getOrCreateKnot(Level level, BlockPos pos) {
++        return getOrCreateKnot(level, pos, null);
++    }
++    public static LeashFenceKnotEntity getOrCreateKnot(Level level, BlockPos pos, @Nullable org.apache.commons.lang3.mutable.MutableBoolean created) {
++        // Paper end - Track if a knot was created
+         int x = pos.getX();
+         int y = pos.getY();
+         int z = pos.getZ();
+@@ -134,7 +_,7 @@
+         }
+ 
+         LeashFenceKnotEntity leashFenceKnotEntity1 = new LeashFenceKnotEntity(level, pos);
+-        level.addFreshEntity(leashFenceKnotEntity1);
++        if (level.addFreshEntity(leashFenceKnotEntity1) && created != null) { created.setTrue(); } // Paper - Track if a knot was created
+         return leashFenceKnotEntity1;
+     }
+ 

paper-server/patches/sources/net/minecraft/world/entity/item/ItemEntity.java.patch

@@ -24,6 +24,21 @@
      }
  
      public ItemEntity(Level level, double posX, double posY, double posZ, ItemStack itemStack, double deltaX, double deltaY, double deltaZ) {
+@@ -79,6 +_,14 @@
+         this.bobOffs = other.bobOffs;
+     }
+ 
++    // Paper start - Require item entities to send their location precisely (Fixes MC-4)
++    {
++        if (io.papermc.paper.configuration.GlobalConfiguration.get().misc.sendFullPosForItemEntities) {
++            this.setRequiresPrecisePosition(true);
++        }
++    }
++    // Paper end - Require item entities to send their location precisely (Fixes MC-4)
++
+     @Override
+     public boolean dampensVibrations() {
+         return this.getItem().is(ItemTags.DAMPENS_VIBRATIONS);
 @@ -116,7 +_,7 @@
      @Override
      public void tick() {

paper-server/patches/sources/net/minecraft/world/entity/monster/AbstractSkeleton.java.patch

@@ -43,23 +43,36 @@
          if (this.getItemBySlot(EquipmentSlot.HEAD).isEmpty()) {
              LocalDate localDate = LocalDate.now();
              int i = localDate.get(ChronoField.DAY_OF_MONTH);
-@@ -196,9 +_,19 @@
+@@ -188,7 +_,8 @@
+ 
+     @Override
+     public void performRangedAttack(LivingEntity target, float distanceFactor) {
+-        ItemStack itemInHand = this.getItemInHand(ProjectileUtil.getWeaponHoldingHand(this, Items.BOW));
++        net.minecraft.world.InteractionHand hand = ProjectileUtil.getWeaponHoldingHand(this, Items.BOW); // Paper - call EntityShootBowEvent
++        ItemStack itemInHand = this.getItemInHand(hand); // Paper - call EntityShootBowEvent
+         ItemStack projectile = this.getProjectile(itemInHand);
+         AbstractArrow arrow = this.getArrow(projectile, distanceFactor, itemInHand);
+         double d = target.getX() - this.getX();
+@@ -196,9 +_,21 @@
          double d2 = target.getZ() - this.getZ();
          double squareRoot = Math.sqrt(d * d + d2 * d2);
          if (this.level() instanceof ServerLevel serverLevel) {
-+            // CraftBukkit start
+-            Projectile.spawnProjectileUsingShoot(
-+            org.bukkit.event.entity.EntityShootBowEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callEntityShootBowEvent(this, this.getMainHandItem(), arrow.getPickupItem(), arrow, net.minecraft.world.InteractionHand.MAIN_HAND, distanceFactor, true); // Paper - improve entity shoot bow event, add arrow stack to event
++            Projectile.Delayed<AbstractArrow> delayedEntity = Projectile.spawnProjectileUsingShootDelayed( // Paper - delayed
+                 arrow, serverLevel, projectile, d, d1 + squareRoot * 0.2F, d2, 1.6F, 14 - serverLevel.getDifficulty().getId() * 4
+             );
++
++            // Paper start - call EntityShootBowEvent
++            org.bukkit.event.entity.EntityShootBowEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callEntityShootBowEvent(this, itemInHand, arrow.getPickupItem(), arrow, hand, distanceFactor, true);
 +            if (event.isCancelled()) {
 +                event.getProjectile().remove();
 +                return;
 +            }
 +
 +            if (event.getProjectile() == arrow.getBukkitEntity()) {
-+            // CraftBukkit end
++                delayedEntity.spawn();
-             Projectile.spawnProjectileUsingShoot(
++            }
-                 arrow, serverLevel, projectile, d, d1 + squareRoot * 0.2F, d2, 1.6F, 14 - serverLevel.getDifficulty().getId() * 4
++            // Paper end - call EntityShootBowEvent
-             );
-+            } // CraftBukkit
          }
  
          this.playSound(SoundEvents.SKELETON_SHOOT, 1.0F, 1.0F / (this.getRandom().nextFloat() * 0.4F + 0.8F));

paper-server/patches/sources/net/minecraft/world/entity/monster/Illusioner.java.patch

@@ -1,22 +1,35 @@
 --- a/net/minecraft/world/entity/monster/Illusioner.java
 +++ b/net/minecraft/world/entity/monster/Illusioner.java
-@@ -180,9 +_,19 @@
+@@ -172,7 +_,8 @@
+ 
+     @Override
+     public void performRangedAttack(LivingEntity target, float distanceFactor) {
+-        ItemStack itemInHand = this.getItemInHand(ProjectileUtil.getWeaponHoldingHand(this, Items.BOW));
++        net.minecraft.world.InteractionHand hand = ProjectileUtil.getWeaponHoldingHand(this, Items.BOW); // Paper - call EntityShootBowEvent
++        ItemStack itemInHand = this.getItemInHand(hand); // Paper - call EntityShootBowEvent
+         ItemStack projectile = this.getProjectile(itemInHand);
+         AbstractArrow mobArrow = ProjectileUtil.getMobArrow(this, projectile, distanceFactor, itemInHand);
+         double d = target.getX() - this.getX();
+@@ -180,9 +_,21 @@
          double d2 = target.getZ() - this.getZ();
          double squareRoot = Math.sqrt(d * d + d2 * d2);
          if (this.level() instanceof ServerLevel serverLevel) {
-+            // Paper start - EntityShootBowEvent
+-            Projectile.spawnProjectileUsingShoot(
-+            org.bukkit.event.entity.EntityShootBowEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callEntityShootBowEvent(this, this.getMainHandItem(), mobArrow.getPickupItem(), mobArrow, target.getUsedItemHand(), distanceFactor, true);
++            Projectile.Delayed<AbstractArrow> delayedEntity = Projectile.spawnProjectileUsingShootDelayed( // Paper - delayed
+                 mobArrow, serverLevel, projectile, d, d1 + squareRoot * 0.2F, d2, 1.6F, 14 - serverLevel.getDifficulty().getId() * 4
+             );
++
++            // Paper start - call EntityShootBowEvent
++            org.bukkit.event.entity.EntityShootBowEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callEntityShootBowEvent(this, itemInHand, mobArrow.getPickupItem(), mobArrow, hand, distanceFactor, true);
 +            if (event.isCancelled()) {
 +                event.getProjectile().remove();
 +                return;
 +            }
 +
 +            if (event.getProjectile() == mobArrow.getBukkitEntity()) {
-             Projectile.spawnProjectileUsingShoot(
++                delayedEntity.spawn();
-                 mobArrow, serverLevel, projectile, d, d1 + squareRoot * 0.2F, d2, 1.6F, 14 - serverLevel.getDifficulty().getId() * 4
-             );
 +            }
-+            // Paper end - EntityShootBowEvent
++            // Paper end - call EntityShootBowEvent
          }
  
          this.playSound(SoundEvents.SKELETON_SHOOT, 1.0F, 1.0F / (this.getRandom().nextFloat() * 0.4F + 0.8F));

paper-server/patches/sources/net/minecraft/world/item/LeadItem.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/item/LeadItem.java
 +++ b/net/minecraft/world/item/LeadItem.java
-@@ -26,24 +_,43 @@
+@@ -26,24 +_,46 @@
          if (blockState.is(BlockTags.FENCES)) {
              Player player = context.getPlayer();
              if (!level.isClientSide && player != null) {
@@ -22,8 +22,11 @@
 +        for (java.util.Iterator<Leashable> iterator = list.iterator(); iterator.hasNext();) { // Paper - use iterator to remove
 +            Leashable leashable = iterator.next(); // Paper - use iterator to remove
              if (leashFenceKnotEntity == null) {
-                 leashFenceKnotEntity = LeashFenceKnotEntity.getOrCreateKnot(level, pos);
+-                leashFenceKnotEntity = LeashFenceKnotEntity.getOrCreateKnot(level, pos);
 +                // CraftBukkit start - fire HangingPlaceEvent
++                org.apache.commons.lang3.mutable.MutableBoolean created = new org.apache.commons.lang3.mutable.MutableBoolean(false);
++                leashFenceKnotEntity = LeashFenceKnotEntity.getOrCreateKnot(level, pos, created);
++                if (created.booleanValue()) {
 +                    org.bukkit.inventory.EquipmentSlot hand = org.bukkit.craftbukkit.CraftEquipmentSlot.getHand(interactionHand);
 +                    org.bukkit.event.hanging.HangingPlaceEvent event = new org.bukkit.event.hanging.HangingPlaceEvent((org.bukkit.entity.Hanging) leashFenceKnotEntity.getBukkitEntity(), player != null ? (org.bukkit.entity.Player) player.getBukkitEntity() : null, org.bukkit.craftbukkit.block.CraftBlock.at(level, pos), org.bukkit.block.BlockFace.SELF, hand);
 +                    level.getCraftServer().getPluginManager().callEvent(event);
@@ -32,6 +35,7 @@
 +                        leashFenceKnotEntity.discard(null); // CraftBukkit - add Bukkit remove cause
 +                        return InteractionResult.PASS;
 +                    }
++                }
 +                // CraftBukkit end
                  leashFenceKnotEntity.playPlacementSound();
              }

paper-server/patches/sources/net/minecraft/world/level/BaseCommandBlock.java.patch

@@ -12,12 +12,18 @@
  
      public int getSuccessCount() {
          return this.successCount;
-@@ -108,7 +_,7 @@
+@@ -108,7 +_,13 @@
                              this.successCount++;
                          }
                      });
 -                    server.getCommands().performPrefixedCommand(commandSourceStack, this.command);
-+                    server.getCommands().dispatchServerCommand(commandSourceStack, this.command); // CraftBukkit
++                    // Paper start - ServerCommandEvent
++                    org.bukkit.event.server.ServerCommandEvent event = new org.bukkit.event.server.ServerCommandEvent(commandSourceStack.getBukkitSender(), net.minecraft.commands.Commands.trimOptionalPrefix(this.command));
++                    if (!event.callEvent()) {
++                        return true;
++                    }
++                    server.getCommands().performPrefixedCommand(commandSourceStack, event.getCommand());
++                    // Paper end - ServerCommandEvent
                  } catch (Throwable var6) {
                      CrashReport crashReport = CrashReport.forThrowable(var6, "Executing command block");
                      CrashReportCategory crashReportCategory = crashReport.addCategory("Command to be executed");

paper-server/patches/sources/net/minecraft/world/level/block/state/BlockBehaviour.java.patch

@@ -30,7 +30,7 @@
 -                    builder.withParameter(LootContextParams.EXPLOSION_RADIUS, explosion.radius());
 +                // CraftBukkit start - add yield
 +                if (explosion instanceof net.minecraft.world.level.ServerExplosion serverExplosion && serverExplosion.yield < 1.0F) {
-+                    builder.withParameter(LootContextParams.EXPLOSION_RADIUS, serverExplosion.yield == 0 ? 0 : 1.0F / serverExplosion.yield);
++                    builder.withParameter(LootContextParams.EXPLOSION_RADIUS, 1.0F / serverExplosion.yield);
 +                    // CraftBukkit end
                  }
  

paper-server/patches/sources/net/minecraft/world/level/entity/EntitySection.java.patch

@@ -0,0 +1,15 @@
+--- a/net/minecraft/world/level/entity/EntitySection.java
++++ b/net/minecraft/world/level/entity/EntitySection.java
+@@ -19,6 +_,12 @@
+         this.storage = new ClassInstanceMultiMap<>(entityClazz);
+     }
+ 
++    // Paper start - support retrieving all entities, regardless of whether they are accessible
++    public void getEntities(java.util.List<T> into) {
++        into.addAll(this.storage);
++    }
++    // Paper end - support retrieving all entities, regardless of whether they are accessible
++
+     public void add(T entity) {
+         this.storage.add(entity);
+     }

paper-server/patches/sources/net/minecraft/world/level/entity/EntitySectionStorage.java.patch

@@ -0,0 +1,19 @@
+--- a/net/minecraft/world/level/entity/EntitySectionStorage.java
++++ b/net/minecraft/world/level/entity/EntitySectionStorage.java
+@@ -34,6 +_,16 @@
+         this.intialSectionVisibility = initialSectionVisibility;
+     }
+ 
++    // Paper start - support retrieving all entities, regardless of whether they are accessible
++    public Iterable<T> getAllEntities() {
++        java.util.List<T> ret = new java.util.ArrayList<>();
++        for (EntitySection<T> section : this.sections.values()) {
++            section.getEntities(ret);
++        }
++        return ret;
++    }
++    // Paper end - support retrieving all entities, regardless of whether they are accessible
++
+     public void forEachAccessibleNonEmptySection(AABB boundingBox, AbortableIterationConsumer<EntitySection<T>> consumer) {
+         int sectionPosCoord = SectionPos.posToSectionCoord(boundingBox.minX - 2.0);
+         int sectionPosCoord1 = SectionPos.posToSectionCoord(boundingBox.minY - 4.0);

paper-server/patches/sources/net/minecraft/world/level/entity/LevelEntityGetterAdapter.java.patch

@@ -0,0 +1,11 @@
+--- a/net/minecraft/world/level/entity/LevelEntityGetterAdapter.java
++++ b/net/minecraft/world/level/entity/LevelEntityGetterAdapter.java
+@@ -8,7 +_,7 @@
+ 
+ public class LevelEntityGetterAdapter<T extends EntityAccess> implements LevelEntityGetter<T> {
+     private final EntityLookup<T> visibleEntities;
+-    private final EntitySectionStorage<T> sectionStorage;
++    public final EntitySectionStorage<T> sectionStorage; // Paper - public
+ 
+     public LevelEntityGetterAdapter(EntityLookup<T> visibleEntities, EntitySectionStorage<T> sectionStorage) {
+         this.visibleEntities = visibleEntities;

paper-server/patches/sources/net/minecraft/world/waypoints/WaypointTransmitter.java.patch

@@ -0,0 +1,10 @@
+--- a/net/minecraft/world/waypoints/WaypointTransmitter.java
++++ b/net/minecraft/world/waypoints/WaypointTransmitter.java
+@@ -20,6 +_,7 @@
+     Waypoint.Icon waypointIcon();
+ 
+     static boolean doesSourceIgnoreReceiver(LivingEntity entity, ServerPlayer player) {
++        if (!player.getBukkitEntity().canSee(entity.getBukkitEntity())) return true; // Paper - ignore if entity is hidden from player
+         if (player.isSpectator()) {
+             return false;
+         } else if (!entity.isSpectator() && !entity.hasIndirectPassenger(player)) {

paper-server/src/main/java/io/papermc/paper/PaperServerInternalAPIBridge.java

@@ -1,10 +1,12 @@
 package io.papermc.paper;
 
+import io.papermc.paper.command.brigadier.CommandSourceStack;
 import io.papermc.paper.world.damagesource.CombatEntry;
 import io.papermc.paper.world.damagesource.FallLocationType;
 import io.papermc.paper.world.damagesource.PaperCombatEntryWrapper;
 import io.papermc.paper.world.damagesource.PaperCombatTrackerWrapper;
 import net.minecraft.Optionull;
+import net.minecraft.commands.PermissionSource;
 import net.minecraft.world.damagesource.FallLocation;
 import org.bukkit.block.Biome;
 import org.bukkit.craftbukkit.block.CraftBiome;
@@ -16,6 +18,7 @@ import org.bukkit.damage.DamageSource;
 import org.bukkit.entity.LivingEntity;
 import org.jspecify.annotations.NullMarked;
 import org.jspecify.annotations.Nullable;
+import java.util.function.Predicate;
 
 @NullMarked
 public class PaperServerInternalAPIBridge implements InternalAPIBridge {
@@ -71,4 +74,16 @@ public class PaperServerInternalAPIBridge implements InternalAPIBridge {
             damageSource, damage, fallLocation, fallDistance
         ));
     }
+
+    @Override
+    public Predicate<CommandSourceStack> restricted(final Predicate<CommandSourceStack> predicate) {
+        record RestrictedPredicate(Predicate<CommandSourceStack> predicate) implements Predicate<CommandSourceStack>, PermissionSource.RestrictedMarker {
+            @Override
+            public boolean test(final CommandSourceStack commandSourceStack) {
+                return this.predicate.test(commandSourceStack);
+            }
+        }
+
+        return new RestrictedPredicate(predicate);
+    }
 }

paper-server/src/main/java/io/papermc/paper/adventure/AdventureCodecs.java

@@ -1,5 +1,6 @@
 package io.papermc.paper.adventure;
 
+import com.mojang.brigadier.exceptions.CommandSyntaxException;
 import com.mojang.datafixers.util.Either;
 import com.mojang.serialization.Codec;
 import com.mojang.serialization.DataResult;
@@ -14,6 +15,7 @@ import java.util.function.Function;
 import java.util.function.Predicate;
 import com.mojang.serialization.codecs.RecordCodecBuilder;
 import net.kyori.adventure.key.Key;
+import net.kyori.adventure.nbt.api.BinaryTagHolder;
 import net.kyori.adventure.text.BlockNBTComponent;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.EntityNBTComponent;
@@ -37,6 +39,9 @@ import net.kyori.adventure.text.format.TextDecoration;
 import net.minecraft.commands.arguments.selector.SelectorPattern;
 import net.minecraft.core.UUIDUtil;
 import net.minecraft.core.registries.BuiltInRegistries;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.Tag;
+import net.minecraft.nbt.TagParser;
 import net.minecraft.network.RegistryFriendlyByteBuf;
 import net.minecraft.network.chat.ComponentSerialization;
 import net.minecraft.network.chat.contents.KeybindContents;
@@ -44,6 +49,7 @@ import net.minecraft.network.chat.contents.ScoreContents;
 import net.minecraft.network.chat.contents.TranslatableContents;
 import net.minecraft.network.codec.ByteBufCodecs;
 import net.minecraft.network.codec.StreamCodec;
+import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.ExtraCodecs;
 import net.minecraft.util.StringRepresentable;
 import net.minecraft.world.item.Item;
@@ -63,7 +69,14 @@ import static net.kyori.adventure.text.TranslationArgument.numeric;
 
 @DefaultQualifier(NonNull.class)
 public final class AdventureCodecs {
-
+    public static final Codec<BinaryTagHolder> BINARY_TAG_HOLDER_CODEC = ExtraCodecs.NBT.flatComapMap(tag -> BinaryTagHolder.encode(tag, PaperAdventure.NBT_CODEC), api -> {
+        try {
+            final Tag tag = api.get(PaperAdventure.NBT_CODEC);
+            return DataResult.success(tag);
+        } catch (CommandSyntaxException e) {
+            return DataResult.error(e::getMessage);
+        }
+    });
     public static final Codec<Component> COMPONENT_CODEC = recursive("adventure Component", AdventureCodecs::createCodec);
     public static final StreamCodec<RegistryFriendlyByteBuf, Component> STREAM_COMPONENT_CODEC = ByteBufCodecs.fromCodecWithRegistriesTrusted(COMPONENT_CODEC);
 
@@ -89,27 +102,37 @@ public final class AdventureCodecs {
         return Key.parseable(s) ? DataResult.success(Key.key(s)) : DataResult.error(() -> "Cannot convert " + s + " to adventure Key");
     }, Key::asString);
 
+    static final Function<ClickEvent, String> TEXT_PAYLOAD_EXTRACTOR = a -> ((ClickEvent.Payload.Text) a.payload()).value();
+
     /*
      * Click
      */
     static final MapCodec<ClickEvent> OPEN_URL_CODEC = mapCodec((instance) -> instance.group(
-        ExtraCodecs.UNTRUSTED_URI.fieldOf("url").forGetter(a -> URI.create(!a.value().contains("://") ? "https://" + a.value() : a.value()))
+        ExtraCodecs.UNTRUSTED_URI.fieldOf("url").forGetter(a -> {
+                final String url = ((ClickEvent.Payload.Text) a.payload()).value();
+                return URI.create(!url.contains("://") ? "https://" + url : url);
+            }
+        )
     ).apply(instance, (url) -> ClickEvent.openUrl(url.toString())));
     static final MapCodec<ClickEvent> OPEN_FILE_CODEC = mapCodec((instance) -> instance.group(
-        Codec.STRING.fieldOf("path").forGetter(ClickEvent::value)
+        Codec.STRING.fieldOf("path").forGetter(TEXT_PAYLOAD_EXTRACTOR)
     ).apply(instance, ClickEvent::openFile));
     static final MapCodec<ClickEvent> RUN_COMMAND_CODEC = mapCodec((instance) -> instance.group(
-        ExtraCodecs.CHAT_STRING.fieldOf("command").forGetter(ClickEvent::value)
+        ExtraCodecs.CHAT_STRING.fieldOf("command").forGetter(TEXT_PAYLOAD_EXTRACTOR)
     ).apply(instance, ClickEvent::runCommand));
     static final MapCodec<ClickEvent> SUGGEST_COMMAND_CODEC = mapCodec((instance) -> instance.group(
-        ExtraCodecs.CHAT_STRING.fieldOf("command").forGetter(ClickEvent::value)
+        ExtraCodecs.CHAT_STRING.fieldOf("command").forGetter(TEXT_PAYLOAD_EXTRACTOR)
     ).apply(instance, ClickEvent::suggestCommand));
     static final MapCodec<ClickEvent> CHANGE_PAGE_CODEC = mapCodec((instance) -> instance.group(
-        ExtraCodecs.POSITIVE_INT.fieldOf("page").forGetter(a -> Integer.parseInt(a.value()))
+        ExtraCodecs.POSITIVE_INT.fieldOf("page").forGetter(a -> ((ClickEvent.Payload.Int) a.payload()).integer())
     ).apply(instance, ClickEvent::changePage));
     static final MapCodec<ClickEvent> COPY_TO_CLIPBOARD_CODEC = mapCodec((instance) -> instance.group(
-        Codec.STRING.fieldOf("value").forGetter(ClickEvent::value)
+        Codec.STRING.fieldOf("value").forGetter(TEXT_PAYLOAD_EXTRACTOR)
     ).apply(instance, ClickEvent::copyToClipboard));
+    static final MapCodec<ClickEvent> CUSTOM_CODEC = mapCodec((instance) -> instance.group(
+        KEY_CODEC.fieldOf("id").forGetter(a -> ((ClickEvent.Payload.Custom) a.payload()).key()),
+        BINARY_TAG_HOLDER_CODEC.fieldOf("payload").forGetter(a -> ((ClickEvent.Payload.Custom) a.payload()).nbt())
+    ).apply(instance, ClickEvent::custom));
 
     static final ClickEventType OPEN_URL_CLICK_EVENT_TYPE = new ClickEventType(OPEN_URL_CODEC, "open_url");
     static final ClickEventType OPEN_FILE_CLICK_EVENT_TYPE = new ClickEventType(OPEN_FILE_CODEC, "open_file");
@@ -117,7 +140,8 @@ public final class AdventureCodecs {
     static final ClickEventType SUGGEST_COMMAND_CLICK_EVENT_TYPE = new ClickEventType(SUGGEST_COMMAND_CODEC, "suggest_command");
     static final ClickEventType CHANGE_PAGE_CLICK_EVENT_TYPE = new ClickEventType(CHANGE_PAGE_CODEC, "change_page");
     static final ClickEventType COPY_TO_CLIPBOARD_CLICK_EVENT_TYPE = new ClickEventType(COPY_TO_CLIPBOARD_CODEC, "copy_to_clipboard");
-    static final Codec<ClickEventType> CLICK_EVENT_TYPE_CODEC = StringRepresentable.fromValues(() -> new ClickEventType[]{OPEN_URL_CLICK_EVENT_TYPE, OPEN_FILE_CLICK_EVENT_TYPE, RUN_COMMAND_CLICK_EVENT_TYPE, SUGGEST_COMMAND_CLICK_EVENT_TYPE, CHANGE_PAGE_CLICK_EVENT_TYPE, COPY_TO_CLIPBOARD_CLICK_EVENT_TYPE});
+    static final ClickEventType CUSTOM_CLICK_EVENT_TYPE = new ClickEventType(CUSTOM_CODEC, "custom");
+    static final Codec<ClickEventType> CLICK_EVENT_TYPE_CODEC = StringRepresentable.fromValues(() -> new ClickEventType[]{OPEN_URL_CLICK_EVENT_TYPE, OPEN_FILE_CLICK_EVENT_TYPE, RUN_COMMAND_CLICK_EVENT_TYPE, SUGGEST_COMMAND_CLICK_EVENT_TYPE, CHANGE_PAGE_CLICK_EVENT_TYPE, COPY_TO_CLIPBOARD_CLICK_EVENT_TYPE, CUSTOM_CLICK_EVENT_TYPE});
 
     record ClickEventType(MapCodec<ClickEvent> codec, String id) implements StringRepresentable {
         @Override
@@ -126,22 +150,16 @@ public final class AdventureCodecs {
         }
     }
 
-    private static final Function<ClickEvent, ClickEventType> GET_CLICK_EVENT_TYPE = he -> {
+    private static final Function<ClickEvent, ClickEventType> GET_CLICK_EVENT_TYPE =
-        if (he.action() == ClickEvent.Action.OPEN_URL) {
+        he -> switch (he.action()) {
-            return OPEN_URL_CLICK_EVENT_TYPE;
+            case OPEN_URL -> OPEN_URL_CLICK_EVENT_TYPE;
-        } else if (he.action() == ClickEvent.Action.OPEN_FILE) {
+            case OPEN_FILE -> OPEN_FILE_CLICK_EVENT_TYPE;
-            return OPEN_FILE_CLICK_EVENT_TYPE;
+            case RUN_COMMAND -> RUN_COMMAND_CLICK_EVENT_TYPE;
-        } else if (he.action() == ClickEvent.Action.RUN_COMMAND) {
+            case SUGGEST_COMMAND -> SUGGEST_COMMAND_CLICK_EVENT_TYPE;
-            return RUN_COMMAND_CLICK_EVENT_TYPE;
+            case CHANGE_PAGE -> CHANGE_PAGE_CLICK_EVENT_TYPE;
-        } else if (he.action() == ClickEvent.Action.SUGGEST_COMMAND) {
+            case COPY_TO_CLIPBOARD -> COPY_TO_CLIPBOARD_CLICK_EVENT_TYPE;
-            return SUGGEST_COMMAND_CLICK_EVENT_TYPE;
+            case SHOW_DIALOG -> throw new UnsupportedOperationException(); // todo: dialog codec with dialog "api"
-        } else if (he.action() == ClickEvent.Action.CHANGE_PAGE) {
+            case CUSTOM -> CUSTOM_CLICK_EVENT_TYPE;
-            return CHANGE_PAGE_CLICK_EVENT_TYPE;
-        } else if (he.action() == ClickEvent.Action.COPY_TO_CLIPBOARD) {
-            return COPY_TO_CLIPBOARD_CLICK_EVENT_TYPE;
-        } else {
-            throw new IllegalStateException();
-        }
         };
 
     static final Codec<ClickEvent> CLICK_EVENT_CODEC = CLICK_EVENT_TYPE_CODEC.dispatch("action", GET_CLICK_EVENT_TYPE, ClickEventType::codec);

paper-server/src/main/java/io/papermc/paper/adventure/PaperAdventure.java

@@ -35,8 +35,6 @@ import net.kyori.adventure.text.serializer.gson.GsonComponentSerializer;
 import net.kyori.adventure.text.serializer.plain.PlainComponentSerializer;
 import net.kyori.adventure.text.serializer.plain.PlainTextComponentSerializer;
 import net.kyori.adventure.translation.GlobalTranslator;
-import net.kyori.adventure.translation.TranslationRegistry;
-import net.kyori.adventure.translation.Translator;
 import net.kyori.adventure.util.Codec;
 import net.minecraft.ChatFormatting;
 import net.minecraft.commands.CommandSourceStack;
@@ -78,16 +76,16 @@ import static java.util.Objects.requireNonNull;
 public final class PaperAdventure {
     private static final Pattern LOCALIZATION_PATTERN = Pattern.compile("%(?:(\\d+)\\$)?s");
     public static final ComponentFlattener FLATTENER = ComponentFlattener.basic().toBuilder()
+        .nestingLimit(30) // todo: should this be configurable? a system property or config value?
         .complexMapper(TranslatableComponent.class, (translatable, consumer) -> {
-            if (!Language.getInstance().has(translatable.key())) {
+            final Language language = Language.getInstance();
-                for (final Translator source : GlobalTranslator.translator().sources()) {
+            final @Nullable String fallback = translatable.fallback();
-                    if (source instanceof TranslationRegistry registry && registry.contains(translatable.key())) {
+            if (!language.has(translatable.key()) && (fallback == null || !language.has(fallback))) {
+                if (GlobalTranslator.translator().canTranslate(translatable.key(), Locale.US)) {
                     consumer.accept(GlobalTranslator.render(translatable, Locale.US));
                     return;
                 }
             }
-            }
-            final @Nullable String fallback = translatable.fallback();
             final @NotNull String translated = Language.getInstance().getOrDefault(translatable.key(), fallback != null ? fallback : translatable.key());
 
             final Matcher matcher = LOCALIZATION_PATTERN.matcher(translated);
@@ -379,6 +377,7 @@ public final class PaperAdventure {
             case PLAYER -> SoundSource.PLAYERS;
             case AMBIENT -> SoundSource.AMBIENT;
             case VOICE -> SoundSource.VOICE;
+            case UI -> SoundSource.UI;
         };
     }
 

paper-server/src/main/java/io/papermc/paper/adventure/providers/ClickCallbackProviderImpl.java

@@ -1,24 +1,33 @@
 package io.papermc.paper.adventure.providers;
 
+import io.papermc.paper.adventure.PaperAdventure;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Queue;
 import java.util.UUID;
+import java.util.concurrent.ConcurrentLinkedQueue;
 import net.kyori.adventure.audience.Audience;
+import net.kyori.adventure.key.Key;
 import net.kyori.adventure.text.event.ClickCallback;
 import net.kyori.adventure.text.event.ClickEvent;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.Tag;
+import net.minecraft.resources.ResourceLocation;
 import org.jetbrains.annotations.NotNull;
 
-import java.util.Queue;
-import java.util.concurrent.ConcurrentLinkedQueue;
-
 @SuppressWarnings("UnstableApiUsage") // permitted provider
 public class ClickCallbackProviderImpl implements ClickCallback.Provider {
+    private static final Key CLICK_CALLBACK_KEY = Key.key("paper", "click_callback");
+    private static final String ID_KEY = "id";
 
+    public static final ResourceLocation CLICK_CALLBACK_RESOURCE_LOCATION = PaperAdventure.asVanilla(CLICK_CALLBACK_KEY);
     public static final CallbackManager CALLBACK_MANAGER = new CallbackManager();
 
     @Override
     public @NotNull ClickEvent create(final @NotNull ClickCallback<Audience> callback, final ClickCallback.@NotNull Options options) {
-        return ClickEvent.runCommand("/paper:callback " + CALLBACK_MANAGER.addCallback(callback, options));
+        final CompoundTag tag = new CompoundTag();
+        tag.putString(ID_KEY, CALLBACK_MANAGER.addCallback(callback, options).toString());
+        return ClickEvent.custom(CLICK_CALLBACK_KEY, PaperAdventure.asBinaryTagHolder(tag));
     }
 
     public static final class CallbackManager {
@@ -48,12 +57,21 @@ public class ClickCallbackProviderImpl implements ClickCallback.Provider {
             }
         }
 
-        public void runCallback(final @NotNull Audience audience, final UUID id) {
+        public void tryRunCallback(final @NotNull Audience audience, final Tag tag) {
+            tag.asCompound().flatMap(t -> t.getString(ID_KEY)).ifPresent(s -> {
+                final UUID id;
+                try {
+                    id = UUID.fromString(s);
+                } catch (final IllegalArgumentException ignored) {
+                    return;
+                }
+
                 final StoredCallback callback = this.callbacks.get(id);
-            if (callback != null && callback.valid()) { //TODO Message if expired/invalid?
+                if (callback != null && callback.valid()) {
                     callback.takeUse();
                     callback.callback.accept(audience);
                 }
+            });
         }
     }
 

paper-server/src/main/java/io/papermc/paper/command/CallbackCommand.java

@@ -1,35 +0,0 @@
-package io.papermc.paper.command;
-
-import io.papermc.paper.adventure.providers.ClickCallbackProviderImpl;
-import org.bukkit.command.Command;
-import org.bukkit.command.CommandSender;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.framework.qual.DefaultQualifier;
-import java.util.UUID;
-
-@DefaultQualifier(NonNull.class)
-public class CallbackCommand extends Command {
-
-    protected CallbackCommand(final String name) {
-        super(name);
-        this.description = "ClickEvent callback";
-        this.usageMessage = "/callback <uuid>";
-    }
-
-    @Override
-    public boolean execute(final CommandSender sender, final String commandLabel, final String[] args) {
-        if (args.length != 1) {
-            return false;
-        }
-
-        final UUID id;
-        try {
-            id = UUID.fromString(args[0]);
-        } catch (final IllegalArgumentException ignored) {
-            return false;
-        }
-
-        ClickCallbackProviderImpl.CALLBACK_MANAGER.runCallback(sender, id);
-        return true;
-    }
-}

paper-server/src/main/java/io/papermc/paper/command/PaperCommands.java

@@ -23,7 +23,6 @@ public final class PaperCommands {
 
     public static void registerCommands(final MinecraftServer server) {
         COMMANDS.put("paper", new PaperCommand("paper"));
-        COMMANDS.put("callback", new CallbackCommand("callback"));
         COMMANDS.put("mspt", new MSPTCommand("mspt"));
 
         COMMANDS.forEach((s, command) -> {

paper-server/src/main/java/io/papermc/paper/command/brigadier/bukkit/BukkitBrigForwardingMap.java

@@ -20,6 +20,7 @@ import java.util.Spliterator;
 import java.util.function.Consumer;
 import java.util.stream.Stream;
 import org.bukkit.command.Command;
+import org.bukkit.craftbukkit.command.VanillaCommandWrapper;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -96,7 +97,7 @@ public class BukkitBrigForwardingMap extends HashMap<String, Command> {
     public Command put(String key, Command value) {
         Command old = this.get(key);
         this.getDispatcher().getRoot().removeCommand(key); // Override previous command
-        if (value instanceof PluginVanillaCommandWrapper wrapper && wrapper.getName().equals(key)) {
+        if (value instanceof VanillaCommandWrapper wrapper && wrapper.getName().equals(key)) {
             // Don't break when some plugin tries to remove and add back a plugin command registered with modern API...
             this.getDispatcher().getRoot().addChild((CommandNode) wrapper.vanillaCommand);
         } else {

paper-server/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java

@@ -1,6 +1,7 @@
 package io.papermc.paper.command.subcommands;
 
 import com.google.common.collect.Maps;
+import io.papermc.paper.FeatureHooks;
 import io.papermc.paper.command.CommandUtil;
 import io.papermc.paper.command.PaperSubcommand;
 import java.util.Collections;
@@ -9,7 +10,6 @@ import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
 import java.util.stream.Collectors;
-
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.event.ClickEvent;
 import net.kyori.adventure.text.event.HoverEvent;
@@ -102,7 +102,7 @@ public final class EntityCommand implements PaperSubcommand {
             ServerLevel world = ((CraftWorld) bukkitWorld).getHandle();
             Map<ResourceLocation, Integer> nonEntityTicking = Maps.newHashMap();
             ServerChunkCache chunkProviderServer = world.getChunkSource();
-            world.getAllEntities().forEach(e -> {
+            FeatureHooks.getAllEntities(world).forEach(e -> {
                 ResourceLocation key = EntityType.getKey(e.getType());
 
                 MutablePair<Integer, Map<ChunkPos, Integer>> info = list.computeIfAbsent(key, k -> MutablePair.of(0, Maps.newHashMap()));

paper-server/src/main/java/io/papermc/paper/configuration/GlobalConfiguration.java

@@ -343,7 +343,7 @@ public class GlobalConfiguration extends ConfigurationPart {
             }
         }
         public int maxJoinsPerTick = 5;
-        public boolean fixEntityPositionDesync = true;
+        public boolean sendFullPosForItemEntities = false;
         public boolean loadPermissionsYmlBeforePlugins = true;
         @Constraints.Min(4)
         public int regionFileCacheSize = 256;

paper-server/src/main/java/io/papermc/paper/configuration/RemovedConfigurations.java

@@ -82,6 +82,7 @@ interface RemovedConfigurations {
         path("unsupported-settings", "allow-grindstone-overstacking"),
         path("unsupported-settings", "allow-tripwire-disarming-exploits"),
         path("commands", "fix-target-selector-tag-completion"),
+        path("misc", "fix-entity-position-desync")
     };
 
 }

paper-server/src/main/java/io/papermc/paper/threadedregions/EntityScheduler.java

@@ -1,6 +1,7 @@
 package io.papermc.paper.threadedregions;
 
 import ca.spottedleaf.concurrentutil.util.Validate;
+import ca.spottedleaf.moonrise.common.list.ReferenceList;
 import ca.spottedleaf.moonrise.common.util.TickThread;
 import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
 import net.minecraft.world.entity.Entity;
@@ -9,6 +10,8 @@ import org.bukkit.craftbukkit.entity.CraftEntity;
 import java.util.ArrayDeque;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.atomic.AtomicLong;
+import java.util.concurrent.locks.StampedLock;
 import java.util.function.Consumer;
 
 /**
@@ -43,6 +46,8 @@ public final class EntityScheduler {
     private static final long RETIRED_TICK_COUNT = -1L;
     private final Object stateLock = new Object();
     private final Long2ObjectOpenHashMap<List<ScheduledTask>> oneTimeDelayed = new Long2ObjectOpenHashMap<>();
+    private EntitySchedulerTickList scheduledList;
+    private boolean insideScheduledList;
 
     private final ArrayDeque<ScheduledTask> currentlyExecuting = new ArrayDeque<>();
 
@@ -50,6 +55,51 @@ public final class EntityScheduler {
         this.entity = Validate.notNull(entity);
     }
 
+    // must own state lock
+    private boolean hasTasks() {
+        return !this.currentlyExecuting.isEmpty() || !this.oneTimeDelayed.isEmpty();
+    }
+
+    public void registerTo(final EntitySchedulerTickList newTickList) {
+        synchronized (this.stateLock) {
+            final EntitySchedulerTickList prevList = this.scheduledList;
+            if (prevList == newTickList) {
+                return;
+            }
+            this.scheduledList = newTickList;
+
+            // make sure tasks scheduled before registration can be ticked
+            if (prevList == null && this.hasTasks()) {
+                this.insideScheduledList = true;
+            }
+
+            // transfer to new list
+            if (this.insideScheduledList) {
+                if (prevList != null) {
+                    prevList.remove(this);
+                }
+                if (newTickList != null) {
+                    newTickList.add(this);
+                } else {
+                    // retired
+                    this.insideScheduledList = false;
+                }
+            }
+        }
+    }
+
+    /**
+     * Returns whether this scheduler is retired.
+     *
+     * <p>
+     * Note: This should only be invoked on the owning thread for the entity.
+     * </p>
+     * @return whether this scheduler is retired.
+     */
+    public boolean isRetired() {
+        return this.tickCount == RETIRED_TICK_COUNT;
+    }
+
     /**
      * Retires the scheduler, preventing new tasks from being scheduled and invoking the retired callback
      * on all currently scheduled tasks.
@@ -66,6 +116,7 @@ public final class EntityScheduler {
                 throw new IllegalStateException("Already retired");
             }
             this.tickCount = RETIRED_TICK_COUNT;
+            this.registerTo(null);
         }
 
         final Entity thisEntity = this.entity.getHandleRaw();
@@ -127,6 +178,11 @@ public final class EntityScheduler {
             this.oneTimeDelayed.computeIfAbsent(this.tickCount + Math.max(1L, delay), (final long keyInMap) -> {
                 return new ArrayList<>();
             }).add(task);
+
+            if (!this.insideScheduledList && this.scheduledList != null) {
+                this.scheduledList.add(this);
+                this.insideScheduledList = true;
+            }
         }
 
         return true;
@@ -147,6 +203,12 @@ public final class EntityScheduler {
                 throw new IllegalStateException("Ticking retired scheduler");
             }
             ++this.tickCount;
+
+            if (this.scheduledList != null && !this.hasTasks()) {
+                this.scheduledList.remove(this);
+                this.insideScheduledList = false;
+            }
+
             if (this.oneTimeDelayed.isEmpty()) {
                 toRun = null;
             } else {
@@ -178,4 +240,34 @@ public final class EntityScheduler {
             }
         }
     }
+
+    public static final class EntitySchedulerTickList {
+
+        private static final EntityScheduler[] ENTITY_SCHEDULER_ARRAY = new EntityScheduler[0];
+
+        private final ReferenceList<EntityScheduler> entitySchedulers = new ReferenceList<>(ENTITY_SCHEDULER_ARRAY);
+
+        public boolean add(final EntityScheduler scheduler) {
+            synchronized (this) {
+                return this.entitySchedulers.add(scheduler);
+            }
+        }
+
+        public void remove(final EntityScheduler scheduler) {
+            synchronized (this) {
+                this.entitySchedulers.remove(scheduler);
+            }
+        }
+
+        public EntityScheduler[] getAllSchedulers() {
+            EntityScheduler[] ret = new EntityScheduler[this.entitySchedulers.size()];
+            synchronized (this) {
+                if (ret.length != this.entitySchedulers.size()) {
+                    ret = new EntityScheduler[this.entitySchedulers.size()];
+                }
+                System.arraycopy(this.entitySchedulers.getRawDataUnchecked(), 0, ret, 0, this.entitySchedulers.size());
+                return ret;
+            }
+        }
+    }
 }

paper-server/src/main/java/org/bukkit/craftbukkit/CraftServer.java

@@ -302,7 +302,6 @@ public final class CraftServer implements Server {
     public CraftDataPackManager dataPackManager;
     private final CraftServerTickManager serverTickManager;
     private final CraftServerLinks serverLinks;
-    public boolean playerCommandState;
     private boolean printSaveWarning;
     private CraftIconCache icon;
     private boolean overrideAllCommandBlockCommands = false;
@@ -613,7 +612,6 @@ public final class CraftServer implements Server {
             // Spigot start - Allow vanilla commands to be forced to be the main command
             this.commandMap.setFallbackCommands();
             // Spigot end
-            this.commandMap.registerServerAliases();
             DefaultPermissions.registerCorePermissions();
             CraftDefaultPermissions.registerCorePermissions();
             if (!io.papermc.paper.configuration.GlobalConfiguration.get().misc.loadPermissionsYmlBeforePlugins) this.loadCustomPermissions(); // Paper
@@ -974,41 +972,13 @@ public final class CraftServer implements Server {
         return this.playerList;
     }
 
-    // NOTE: Should only be called from DedicatedServer.ah()
-    public boolean dispatchServerCommand(CommandSender sender, ConsoleInput serverCommand) {
-        if (sender instanceof Conversable) {
-            Conversable conversable = (Conversable) sender;
-
-            if (conversable.isConversing()) {
-                conversable.acceptConversationInput(serverCommand.msg);
-                return true;
-            }
-        }
-        try {
-            this.playerCommandState = true;
-            return this.dispatchCommand(sender, serverCommand.msg);
-        } catch (Exception ex) {
-            this.getLogger().log(Level.WARNING, "Unexpected exception while parsing console command \"" + serverCommand.msg + '"', ex);
-            return false;
-        } finally {
-            this.playerCommandState = false;
-        }
-    }
-
     @Override
-    public boolean dispatchCommand(CommandSender sender, String commandLine) {
+    public boolean dispatchCommand(CommandSender rawSender, String commandLine) {
-        Preconditions.checkArgument(sender != null, "sender cannot be null");
+        Preconditions.checkArgument(rawSender != null, "sender cannot be null");
         Preconditions.checkArgument(commandLine != null, "commandLine cannot be null");
         org.spigotmc.AsyncCatcher.catchOp("Command Dispatched Async: " + commandLine); // Spigot // Paper - Include command in error message
+        CommandSourceStack sourceStack = VanillaCommandWrapper.getListener(rawSender);
 
-        if (this.commandMap.dispatch(sender, commandLine)) {
-            return true;
-        }
-
-        return this.dispatchCommand(VanillaCommandWrapper.getListener(sender), commandLine);
-    }
-
-    public boolean dispatchCommand(CommandSourceStack sourceStack, String commandLine) {
         net.minecraft.commands.Commands commands = this.getHandle().getServer().getCommands();
         com.mojang.brigadier.CommandDispatcher<CommandSourceStack> dispatcher = commands.getDispatcher();
         com.mojang.brigadier.ParseResults<CommandSourceStack> results = dispatcher.parse(commandLine, sourceStack);
@@ -1018,7 +988,12 @@ public final class CraftServer implements Server {
         Command target = this.commandMap.getCommand(args[0].toLowerCase(java.util.Locale.ENGLISH));
 
         try {
-            commands.performCommand(results, commandLine, commandLine, true);
+            if (results.getContext().getNodes().isEmpty()) {
+                return false;
+            }
+            Commands.validateParseResults(results);
+            commands.performCommand(results, commandLine, true);
+            return true;
         } catch (CommandException ex) {
             new com.destroystokyo.paper.event.server.ServerExceptionEvent(new com.destroystokyo.paper.exception.ServerCommandException(ex, target, sender, args)).callEvent(); // Paper
             throw ex;
@@ -1027,9 +1002,6 @@ public final class CraftServer implements Server {
             new com.destroystokyo.paper.event.server.ServerExceptionEvent(new com.destroystokyo.paper.exception.ServerCommandException(ex, target, sender, args)).callEvent(); // Paper
             throw new CommandException(msg, ex);
         }
-        // Paper end
-
-        return false;
     }
 
     @Override
@@ -2609,7 +2581,7 @@ public final class CraftServer implements Server {
     }
 
     public void checkSaveState() {
-        if (this.playerCommandState || this.printSaveWarning || this.console.autosavePeriod <= 0) {
+        if (this.printSaveWarning || this.console.autosavePeriod <= 0) {
             return;
         }
         this.printSaveWarning = true;

paper-server/src/main/java/org/bukkit/craftbukkit/CraftWorld.java

@@ -29,6 +29,7 @@ import java.util.UUID;
 import java.util.function.Consumer;
 import java.util.function.Predicate;
 import java.util.stream.Collectors;
+import net.kyori.adventure.pointer.PointersSupplier;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Holder;
 import net.minecraft.core.HolderSet;
@@ -157,6 +158,10 @@ import org.jetbrains.annotations.Nullable;
 public class CraftWorld extends CraftRegionAccessor implements World {
     public static final int CUSTOM_DIMENSION_OFFSET = 10;
     private static final CraftPersistentDataTypeRegistry DATA_TYPE_REGISTRY = new CraftPersistentDataTypeRegistry();
+    private static final PointersSupplier<World> POINTERS_SUPPLIER = PointersSupplier.<World>builder()
+        .resolving(net.kyori.adventure.identity.Identity.NAME, World::getName)
+        .resolving(net.kyori.adventure.identity.Identity.UUID, World::getUID)
+        .build();
 
     private final ServerLevel world;
     private WorldBorder worldBorder;
@@ -168,7 +173,6 @@ public class CraftWorld extends CraftRegionAccessor implements World {
     private final BlockMetadataStore blockMetadata = new BlockMetadataStore(this);
     private final Object2IntOpenHashMap<SpawnCategory> spawnCategoryLimit = new Object2IntOpenHashMap<>();
     private final CraftPersistentDataContainer persistentDataContainer = new CraftPersistentDataContainer(CraftWorld.DATA_TYPE_REGISTRY);
-    private net.kyori.adventure.pointer.Pointers adventure$pointers; // Paper - implement pointers
     // Paper start - void damage configuration
     private boolean voidDamageEnabled;
     private float voidDamageAmount;
@@ -2481,14 +2485,7 @@ public class CraftWorld extends CraftRegionAccessor implements World {
     // Paper start - implement pointers
     @Override
     public net.kyori.adventure.pointer.Pointers pointers() {
-        if (this.adventure$pointers == null) {
+        return POINTERS_SUPPLIER.view(this);
-            this.adventure$pointers = net.kyori.adventure.pointer.Pointers.builder()
-                .withDynamic(net.kyori.adventure.identity.Identity.NAME, this::getName)
-                .withDynamic(net.kyori.adventure.identity.Identity.UUID, this::getUID)
-                .build();
-        }
-
-        return this.adventure$pointers;
     }
     // Paper end
 }

paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java

@@ -74,7 +74,7 @@ public abstract class CraftBlockEntityState<T extends BlockEntity> extends Craft
         this.loadData(state.getSnapshotNBT());
     }
 
-    private RegistryAccess getRegistryAccess() {
+    public RegistryAccess getRegistryAccess() {
         LevelAccessor worldHandle = this.getWorldHandle();
         return (worldHandle != null) ? worldHandle.registryAccess() : CraftRegistry.getMinecraftRegistry();
     }

paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftCreatureSpawner.java

@@ -8,7 +8,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 import java.util.stream.Collectors;
-import net.minecraft.core.RegistryAccess;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.util.InclusiveRange;
 import net.minecraft.util.ProblemReporter;
@@ -51,7 +50,7 @@ public class CraftCreatureSpawner extends CraftBlockEntityState<SpawnerBlockEnti
         }
 
         try (ProblemReporter.ScopedCollector scopedCollector = new ProblemReporter.ScopedCollector(() -> "spawner@" + getLocation(), LOGGER)) {
-            ValueInput valueInput = TagValueInput.create(scopedCollector, this.getInternalWorld().registryAccess(), spawnData.entityToSpawn());
+            ValueInput valueInput = TagValueInput.create(scopedCollector, this.getRegistryAccess(), spawnData.entityToSpawn());
             Optional<net.minecraft.world.entity.EntityType<?>> type = net.minecraft.world.entity.EntityType.by(valueInput);
             return type.map(CraftEntityType::minecraftToBukkit).orElse(null);
         }
@@ -183,7 +182,7 @@ public class CraftCreatureSpawner extends CraftBlockEntityState<SpawnerBlockEnti
             return null;
         }
         try (ProblemReporter.ScopedCollector scopedCollector = new ProblemReporter.ScopedCollector(() -> "spawner@" + getLocation(), LOGGER)) {
-            ValueInput valueInput = TagValueInput.create(scopedCollector, this.getInternalWorld().registryAccess(), spawnData.getEntityToSpawn());
+            ValueInput valueInput = TagValueInput.create(scopedCollector, this.getRegistryAccess(), spawnData.getEntityToSpawn());
             Optional<net.minecraft.world.entity.EntityType<?>> type = net.minecraft.world.entity.EntityType.by(valueInput);
 
             return type.map(CraftEntityType::minecraftToBukkit).map(CraftEntityType::bukkitToString).orElse(null);

paper-server/src/main/java/org/bukkit/craftbukkit/command/ServerCommandSender.java

@@ -2,6 +2,7 @@ package org.bukkit.craftbukkit.command;
 
 import java.util.Set;
 import java.util.UUID;
+import net.kyori.adventure.pointer.PointersSupplier;
 import org.bukkit.Bukkit;
 import org.bukkit.Server;
 import org.bukkit.command.CommandSender;
@@ -12,8 +13,12 @@ import org.bukkit.permissions.PermissionAttachmentInfo;
 import org.bukkit.plugin.Plugin;
 
 public abstract class ServerCommandSender implements CommandSender {
+    private static final PointersSupplier<ServerCommandSender> POINTERS_SUPPLIER = PointersSupplier.<ServerCommandSender>builder()
+        .resolving(net.kyori.adventure.identity.Identity.DISPLAY_NAME, ServerCommandSender::name)
+        .resolving(net.kyori.adventure.permission.PermissionChecker.POINTER, serverCommandSender -> serverCommandSender::permissionValue)
+        .build();
+
     public final PermissibleBase perm;
-    private net.kyori.adventure.pointer.Pointers adventure$pointers;
 
     protected ServerCommandSender() {
         this.perm = new PermissibleBase(this);
@@ -126,13 +131,6 @@ public abstract class ServerCommandSender implements CommandSender {
 
     @Override
     public net.kyori.adventure.pointer.Pointers pointers() {
-        if (this.adventure$pointers == null) {
+        return POINTERS_SUPPLIER.view(this);
-            this.adventure$pointers = net.kyori.adventure.pointer.Pointers.builder()
-                .withDynamic(net.kyori.adventure.identity.Identity.DISPLAY_NAME, this::name)
-                .withStatic(net.kyori.adventure.permission.PermissionChecker.POINTER, this::permissionValue)
-                .build();
-        }
-
-        return this.adventure$pointers;
     }
 }

paper-server/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java

@@ -50,7 +50,7 @@ public class VanillaCommandWrapper extends BukkitCommand { // Paper
         if (!this.testPermission(sender)) return true;
 
         CommandSourceStack source = VanillaCommandWrapper.getListener(sender);
-        this.commands().performPrefixedCommand(source, this.toDispatcher(args, this.getName()), this.toDispatcher(args, commandLabel)); // Paper
+        this.commands().performPrefixedCommand(source, this.toDispatcher(args, this.getName()));
         return true;
     }
 

paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java

@@ -14,6 +14,7 @@ import java.util.Set;
 import java.util.UUID;
 import io.papermc.paper.entity.LookAnchor;
 import java.util.concurrent.CompletableFuture;
+import net.kyori.adventure.pointer.PointersSupplier;
 import net.kyori.adventure.util.TriState;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.network.chat.Component;
@@ -85,13 +86,17 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
 
     private static PermissibleBase perm;
     private static final CraftPersistentDataTypeRegistry DATA_TYPE_REGISTRY = new CraftPersistentDataTypeRegistry();
+    static final PointersSupplier<org.bukkit.entity.Entity> POINTERS_SUPPLIER = PointersSupplier.<org.bukkit.entity.Entity>builder()
+        .resolving(net.kyori.adventure.identity.Identity.DISPLAY_NAME, org.bukkit.entity.Entity::name)
+        .resolving(net.kyori.adventure.identity.Identity.UUID, org.bukkit.entity.Entity::getUniqueId)
+        .resolving(net.kyori.adventure.permission.PermissionChecker.POINTER, entity1 -> entity1::permissionValue)
+        .build();
 
     protected final CraftServer server;
     protected Entity entity;
     private final EntityType entityType;
     private EntityDamageEvent lastDamageEvent;
     private final CraftPersistentDataContainer persistentDataContainer = new CraftPersistentDataContainer(CraftEntity.DATA_TYPE_REGISTRY);
-    protected net.kyori.adventure.pointer.Pointers adventure$pointers; // Paper - implement pointers
     // Paper start - Folia shedulers
     public final io.papermc.paper.threadedregions.EntityScheduler taskScheduler = new io.papermc.paper.threadedregions.EntityScheduler(this);
     private final io.papermc.paper.threadedregions.scheduler.FoliaEntityScheduler apiScheduler = new io.papermc.paper.threadedregions.scheduler.FoliaEntityScheduler(this);
@@ -670,15 +675,7 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
 
     @Override
     public net.kyori.adventure.pointer.Pointers pointers() {
-        if (this.adventure$pointers == null) {
+        return POINTERS_SUPPLIER.view(this);
-            this.adventure$pointers = net.kyori.adventure.pointer.Pointers.builder()
-                .withDynamic(net.kyori.adventure.identity.Identity.DISPLAY_NAME, this::name)
-                .withDynamic(net.kyori.adventure.identity.Identity.UUID, this::getUniqueId)
-                .withStatic(net.kyori.adventure.permission.PermissionChecker.POINTER, this::permissionValue)
-                .build();
-        }
-
-        return this.adventure$pointers;
     }
 
     @Override

paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartMobSpawner.java

@@ -4,6 +4,7 @@ import com.google.common.base.Preconditions;
 import java.util.Collection;
 import java.util.List;
 import java.util.Optional;
+import net.minecraft.core.RegistryAccess;
 import net.minecraft.util.ProblemReporter;
 import net.minecraft.util.RandomSource;
 import net.minecraft.util.random.WeightedList;
@@ -186,6 +187,11 @@ public class CraftMinecartMobSpawner extends CraftMinecart implements SpawnerMin
         return this.getHandle().level();
     }
 
+    @Override
+    public RegistryAccess getRegistryAccess() {
+        return this.getHandle().registryAccess();
+    }
+
     @Override
     public net.minecraft.core.BlockPos getInternalPosition() {
         return this.getHandle().blockPosition();

paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java

@@ -44,6 +44,8 @@ import java.util.concurrent.CompletableFuture;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import java.util.stream.Collectors;
+import net.kyori.adventure.identity.Identity;
+import net.kyori.adventure.pointer.PointersSupplier;
 import net.kyori.adventure.util.TriState;
 import net.md_5.bungee.api.chat.BaseComponent;
 import net.minecraft.advancements.AdvancementProgress;
@@ -213,6 +215,12 @@ import org.jspecify.annotations.Nullable;
 
 @DelegateDeserialization(CraftOfflinePlayer.class)
 public class CraftPlayer extends CraftHumanEntity implements Player {
+    private static final PointersSupplier<Player> POINTERS_SUPPLIER = PointersSupplier.<Player>builder()
+        .parent(CraftEntity.POINTERS_SUPPLIER)
+        .resolving(Identity.NAME, Player::getName)
+        .resolving(Identity.DISPLAY_NAME, Player::displayName)
+        .resolving(Identity.LOCALE, Player::locale)
+        .build();
 
     private long firstPlayed = 0;
     private long lastPlayed = 0;
@@ -3283,17 +3291,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
 
     @Override
     public net.kyori.adventure.pointer.Pointers pointers() {
-        if (this.adventure$pointers == null) {
+        return POINTERS_SUPPLIER.view(this);
-            this.adventure$pointers = net.kyori.adventure.pointer.Pointers.builder()
-                .withDynamic(net.kyori.adventure.identity.Identity.DISPLAY_NAME, this::displayName)
-                .withDynamic(net.kyori.adventure.identity.Identity.NAME, this::getName)
-                .withDynamic(net.kyori.adventure.identity.Identity.UUID, this::getUniqueId)
-                .withStatic(net.kyori.adventure.permission.PermissionChecker.POINTER, this::permissionValue)
-                .withDynamic(net.kyori.adventure.identity.Identity.LOCALE, this::locale)
-                .build();
-        }
-
-        return this.adventure$pointers;
     }
 
     @Override

paper-server/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemType.java

@@ -185,11 +185,6 @@ public class CraftItemType<M extends ItemMeta> extends HolderableBase<Item> impl
         return expectedItem.isEmpty() ? null : CraftItemType.minecraftToBukkitNew(expectedItem.getItem());
     }
 
-//    @Override
-//    public EquipmentSlot getEquipmentSlot() {
-//        return CraftEquipmentSlot.getSlot(EntityInsentient.getEquipmentSlotForItem(CraftItemStack.asNMSCopy(ItemStack.of(this))));
-//    }
-
     @Override
     public Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers() {
         return this.getDefaultAttributeModifiers(sg -> true);

paper-server/src/main/java/org/bukkit/craftbukkit/spawner/PaperSharedSpawnerLogic.java

@@ -34,6 +34,8 @@ public interface PaperSharedSpawnerLogic extends Spawner {
 
     Level getInternalWorld();
 
+    RegistryAccess getRegistryAccess();
+
     BlockPos getInternalPosition();
     default boolean isActivated() {
         return this.getSpawner().isNearPlayer(this.getInternalWorld(), this.getInternalPosition());

paper-server/src/test/java/io/papermc/paper/adventure/AdventureCodecsTest.java

@@ -11,11 +11,14 @@ import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
+import java.net.URI;
 import java.util.List;
+import java.util.Optional;
 import java.util.UUID;
 import java.util.function.Function;
 import java.util.stream.Stream;
 import net.kyori.adventure.key.Key;
+import net.kyori.adventure.nbt.api.BinaryTagHolder;
 import net.kyori.adventure.text.BlockNBTComponent;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.event.ClickEvent;
@@ -106,23 +109,35 @@ class AdventureCodecsTest {
     }
 
     @ParameterizedTest(name = PARAMETERIZED_NAME)
-    @EnumSource(value = ClickEvent.Action.class, mode = EnumSource.Mode.EXCLUDE, names = {"OPEN_FILE"})
+    @EnumSource(value = ClickEvent.Action.class, mode = EnumSource.Mode.EXCLUDE, names = {"OPEN_FILE", "SHOW_DIALOG", "CUSTOM"})
     void testClickEvent(final ClickEvent.Action action) {
-        final ClickEvent event = ClickEvent.clickEvent(action, action.name().equals("OPEN_URL") ? "https://google.com" : "1337");
+        final ClickEvent event = switch (action) {
-        final Tag result = CLICK_EVENT_CODEC.encodeStart(NbtOps.INSTANCE, event).result().orElseThrow();
+            case OPEN_URL -> openUrl("https://google.com");
+            case RUN_COMMAND -> ClickEvent.runCommand("/say hello");
+            case SUGGEST_COMMAND -> suggestCommand("/suggest hello");
+            case CHANGE_PAGE -> ClickEvent.changePage(2);
+            case COPY_TO_CLIPBOARD -> ClickEvent.copyToClipboard("clipboard content");
+            case CUSTOM -> ClickEvent.custom(key("test"), BinaryTagHolder.binaryTagHolder("3"));
+            case SHOW_DIALOG, OPEN_FILE -> throw new IllegalArgumentException();
+        };
+        final Tag result = CLICK_EVENT_CODEC.encodeStart(NbtOps.INSTANCE, event).result().orElseThrow(() -> new RuntimeException("Failed to encode ClickEvent: " + event));
         final net.minecraft.network.chat.ClickEvent nms = net.minecraft.network.chat.ClickEvent.CODEC.decode(NbtOps.INSTANCE, result).result().orElseThrow().getFirst();
         assertEquals(event.action().toString(), nms.action().getSerializedName());
         switch (nms) {
-            case net.minecraft.network.chat.ClickEvent.OpenUrl(java.net.URI uri) ->
+            case net.minecraft.network.chat.ClickEvent.OpenUrl(URI uri) ->
-                assertEquals(event.value(), uri.toString());
+                assertEquals(((ClickEvent.Payload.Text) event.payload()).value(), uri.toString());
             case net.minecraft.network.chat.ClickEvent.SuggestCommand(String command) ->
-                assertEquals(event.value(), command);
+                assertEquals(((ClickEvent.Payload.Text) event.payload()).value(), command);
             case net.minecraft.network.chat.ClickEvent.RunCommand(String command) ->
-                assertEquals(event.value(), command);
+                assertEquals(((ClickEvent.Payload.Text) event.payload()).value(), command);
             case net.minecraft.network.chat.ClickEvent.CopyToClipboard(String value) ->
-                assertEquals(event.value(), value);
+                assertEquals(((ClickEvent.Payload.Text) event.payload()).value(), value);
             case net.minecraft.network.chat.ClickEvent.ChangePage(int page) ->
-                assertEquals(event.value(), String.valueOf(page));
+                assertEquals(((ClickEvent.Payload.Int) event.payload()).integer(), page);
+            case net.minecraft.network.chat.ClickEvent.Custom(ResourceLocation id, Optional<Tag> payload) -> {
+                assertEquals(((ClickEvent.Payload.Custom) event.payload()).key().toString(), id.toString());
+                assertEquals(((ClickEvent.Payload.Custom) event.payload()).nbt(), payload.orElseThrow().asString());
+            }
             default -> throw new AssertionError("Unexpected ClickEvent type: " + nms.getClass());
         }
     }
@@ -294,10 +309,10 @@ class AdventureCodecsTest {
                 .clickEvent(openUrl("https://github.com"))
                 .build(),
             style()
-                .hoverEvent(HoverEvent.showEntity(HoverEvent.ShowEntity.showEntity(
+                .hoverEvent(showEntity(HoverEvent.ShowEntity.showEntity(
-                    Key.key(Key.MINECRAFT_NAMESPACE, "pig"),
+                    key(Key.MINECRAFT_NAMESPACE, "pig"),
                     UUID.randomUUID(),
-                    Component.text("Dolores", TextColor.color(0x0a1ab9))
+                    text("Dolores", color(0x0a1ab9))
                 )))
                 .build()
         );