Support for 1.20.5/6 (#2721)

* 1.20.6

Signed-off-by: Alexander Brandes <mc.cache@web.de>

* work

Signed-off-by: Alexander Brandes <mc.cache@web.de>

* More work

Signed-off-by: Alexander Brandes <mc.cache@web.de>

* chore: address more removed fields and methods, make it run

* chore: don't allocate unnecessary arrays (by maps)

* chore: the comment might still be noteworthy

* chore: no need to synchronize twice

* fix obfuscation changes

* remove unneeded deprecation

* make regen work without throwing exceptions - but slow

* fix: error when adapting BaseItemStacks without nbt

* fix annoying paper api breakage

---------

Signed-off-by: Alexander Brandes <mc.cache@web.de>
Co-authored-by: Alexander Brandes <mc.cache@web.de>
Co-authored-by: Pierre Maurice Schwang <mail@pschwang.eu>

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -27,10 +27,9 @@ body:
       description: Which server version version you using? If your server version is not listed, it is not supported. Update to a supported version first.
       multiple: false
       options:
-        - '1.20.4'
+        - '1.20.5/6'
         - '1.20'
         - '1.19.4'
-        - '1.18.2'
     validations:
       required: true
 

.github/workflows/build-pr.yml

@@ -17,7 +17,7 @@ jobs:
         with:
           distribution: temurin
           cache: gradle
-          java-version: 17
+          java-version: 21
       - name: Build on ${{ matrix.os }}
         run: ./gradlew build -s
       - name: Archive artifacts

.github/workflows/build.yml

@@ -17,7 +17,7 @@ jobs:
         with:
           distribution: temurin
           cache: gradle
-          java-version: 17
+          java-version: 21
       - name: Clean Build
         run: ./gradlew clean build --no-daemon
       - name: Determine release status

.github/workflows/codeql.yml

@@ -25,7 +25,7 @@ jobs:
         with:
           distribution: temurin
           cache: gradle
-          java-version: 17
+          java-version: 21
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3
         with:

.github/workflows/upload-release-assets.yml

@@ -15,7 +15,7 @@ jobs:
         with:
           distribution: temurin
           cache: gradle
-          java-version: 17
+          java-version: 21
       - name: Clean Build
         run: ./gradlew clean build --no-daemon
       - name: Upload Release Assets

COMPILING.adoc

@@ -3,12 +3,12 @@
 
 = Compiling
 
-You can compile FastAsyncWorldEdit as long as you have some version of Java greater than or equal to 17 installed. Gradle will download JDK 17 specifically if needed,
+You can compile FastAsyncWorldEdit as long as you have some version of Java greater than or equal to 21 installed. Gradle will download JDK 21 specifically if needed,
 but it needs some version of Java to bootstrap from.
 
-Note that if you have JRE 8 installed, Gradle will currently attempt to use that to compile, which will not work. It is easiest to uninstall JRE 8 and replace it with JDK 17.
+Note that if you have JRE 8 installed, Gradle will currently attempt to use that to compile, which will not work. It is easiest to uninstall JRE 8 and replace it with JDK 21.
 
-You can get the JDK 17 link:https://adoptium.net/[here] from Adoptium.
+You can get the JDK 21 link:https://adoptium.net/[here] from Adoptium.
 
 The build process uses Gradle, which you do *not* need to download. FastAsyncWorldEdit is a multi-module project with three active modules:
 

Jenkinsfile

@@ -7,7 +7,7 @@ pipeline {
         stage('Build') {
             steps {
                 withEnv([
-                        "PATH+JAVA=${tool 'Temurin-17.0.7_7'}/bin"
+                        "PATH+JAVA=${tool 'Temurin-21.0.3_9'}/bin"
                 ]) {
                     sh './gradlew clean build'
                 }

build.gradle.kts

@@ -83,7 +83,7 @@ allprojects {
 }
 
 applyCommonConfiguration()
-val supportedVersions = listOf("1.18.2", "1.19.4", "1.20", "1.20.4")
+val supportedVersions = listOf("1.19.4", "1.20", "1.20.4", "1.20.5", "1.20.6")
 
 tasks {
     supportedVersions.forEach {

buildSrc/build.gradle.kts

@@ -25,10 +25,22 @@ dependencies {
     implementation("org.ajoberstar.grgit:grgit-gradle:5.2.2")
     implementation("com.github.johnrengelman:shadow:8.1.1")
     implementation("io.papermc.paperweight.userdev:io.papermc.paperweight.userdev.gradle.plugin:1.7.1")
+    constraints {
+        val asmVersion = "[9.7,)"
+        implementation("org.ow2.asm:asm:$asmVersion") {
+            because("Need Java 21 support in shadow")
+        }
+        implementation("org.ow2.asm:asm-commons:$asmVersion") {
+            because("Need Java 21 support in shadow")
+        }
+        implementation("org.vafer:jdependency:[2.10,)") {
+            because("Need Java 21 support in shadow")
+        }
+    }
 }
 
 kotlin {
     jvmToolchain {
-        (this as JavaToolchainSpec).languageVersion.set(JavaLanguageVersion.of(17))
+        (this as JavaToolchainSpec).languageVersion.set(JavaLanguageVersion.of(21))
     }
 }

buildSrc/src/main/kotlin/CommonConfig.kt

@@ -33,7 +33,7 @@ fun Project.applyCommonConfiguration() {
 
     plugins.withId("java") {
         the<JavaPluginExtension>().toolchain {
-            languageVersion.set(JavaLanguageVersion.of(17))
+            languageVersion.set(JavaLanguageVersion.of(21))
         }
     }
 

buildSrc/src/main/kotlin/CommonJavaConfig.kt

@@ -21,7 +21,7 @@ fun Project.applyCommonJavaConfiguration(sourcesJar: Boolean, banSlf4j: Boolean
             .matching { it.name == "compileJava" || it.name == "compileTestJava" }
             .configureEach {
                 val disabledLint = listOf(
-                        "processing", "path", "fallthrough", "serial"
+                        "processing", "path", "fallthrough", "serial", "overloads", "this-escape",
                 )
                 options.release.set(17)
                 options.compilerArgs.addAll(listOf("-Xlint:all") + disabledLint.map { "-Xlint:-$it" })
@@ -31,7 +31,7 @@ fun Project.applyCommonJavaConfiguration(sourcesJar: Boolean, banSlf4j: Boolean
             }
 
     configurations.all {
-        attributes.attribute(TargetJvmVersion.TARGET_JVM_VERSION_ATTRIBUTE, 17)
+        attributes.attribute(TargetJvmVersion.TARGET_JVM_VERSION_ATTRIBUTE, 21)
     }
 
     tasks.withType<Test>().configureEach {

buildSrc/src/main/kotlin/LibsConfig.kt

@@ -122,7 +122,7 @@ fun Project.applyLibrariesConfiguration() {
             attribute(Category.CATEGORY_ATTRIBUTE, project.objects.named(Category.LIBRARY))
             attribute(Bundling.BUNDLING_ATTRIBUTE, project.objects.named(Bundling.SHADOWED))
             attribute(LibraryElements.LIBRARY_ELEMENTS_ATTRIBUTE, project.objects.named(LibraryElements.JAR))
-            attribute(TargetJvmVersion.TARGET_JVM_VERSION_ATTRIBUTE, 17)
+            attribute(TargetJvmVersion.TARGET_JVM_VERSION_ATTRIBUTE, 21)
         }
         outgoing.artifact(tasks.named("jar"))
     }
@@ -137,7 +137,7 @@ fun Project.applyLibrariesConfiguration() {
             attribute(Category.CATEGORY_ATTRIBUTE, project.objects.named(Category.LIBRARY))
             attribute(Bundling.BUNDLING_ATTRIBUTE, project.objects.named(Bundling.SHADOWED))
             attribute(LibraryElements.LIBRARY_ELEMENTS_ATTRIBUTE, project.objects.named(LibraryElements.JAR))
-            attribute(TargetJvmVersion.TARGET_JVM_VERSION_ATTRIBUTE, 17)
+            attribute(TargetJvmVersion.TARGET_JVM_VERSION_ATTRIBUTE, 21)
         }
         outgoing.artifact(tasks.named("jar"))
     }

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 # Minecraft expectations
-paper = "1.20.4-R0.1-SNAPSHOT"
+paper = "1.20.6-R0.1-SNAPSHOT"
 fastutil = "8.5.9"
 guava = "31.1-jre"
 log4j = "2.19.0"

settings.gradle.kts

@@ -2,7 +2,7 @@ rootProject.name = "FastAsyncWorldEdit"
 
 include("worldedit-libs")
 
-listOf("1_18_2", "1_19_4", "1_20", "1_20_2", "1_20_4").forEach {
+listOf("1_19_4", "1_20", "1_20_2", "1_20_4", "1_20_5").forEach {
     include("worldedit-bukkit:adapters:adapter-$it")
 }
 

worldedit-bukkit/adapters/adapter-1_20_4/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R3/PaperweightPlatformAdapter.java

@@ -58,7 +58,6 @@ import net.minecraft.world.level.entity.PersistentEntitySectionManager;
 import org.apache.logging.log4j.Logger;
 import org.bukkit.Bukkit;
 import org.bukkit.craftbukkit.v1_20_R3.CraftChunk;
-import sun.misc.Unsafe;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;

worldedit-bukkit/adapters/adapter-1_20_5/build.gradle.kts

@@ -11,7 +11,7 @@ repositories {
 }
 
 dependencies {
-    // url=https://repo.papermc.io/service/rest/repository/browse/maven-public/io/papermc/paper/dev-bundle/1.18.2-R0.1-SNAPSHOT
+    // url=https://repo.papermc.io/service/rest/repository/browse/maven-public/io/papermc/paper/dev-bundle/1.20.6-R0.1-SNAPSHOT/
-    the<PaperweightUserDependenciesExtension>().paperDevBundle("1.18.2-R0.1-20220920.010157-167")
+    the<PaperweightUserDependenciesExtension>().paperDevBundle("1.20.6-R0.1-20240516.001739-55")
     compileOnly(libs.paperlib)
 }

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/ext.fawe/v1_20_R4/PaperweightAdapter.java

@@ -17,24 +17,23 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package com.sk89q.worldedit.bukkit.adapter.ext.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.ext.fawe.v1_20_R4;
 
 import com.google.common.cache.CacheBuilder;
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
 import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
 import com.google.common.util.concurrent.Futures;
-import com.mojang.datafixers.util.Either;
+import com.mojang.serialization.Codec;
 import com.mojang.serialization.Lifecycle;
+import com.sk89q.jnbt.NBTConstants;
 import com.sk89q.worldedit.WorldEditException;
 import com.sk89q.worldedit.blocks.BaseItem;
 import com.sk89q.worldedit.blocks.BaseItemStack;
 import com.sk89q.worldedit.bukkit.BukkitAdapter;
 import com.sk89q.worldedit.bukkit.adapter.BukkitImplAdapter;
 import com.sk89q.worldedit.bukkit.adapter.Refraction;
-import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2.PaperweightPlatformAdapter;
 import com.sk89q.worldedit.entity.BaseEntity;
 import com.sk89q.worldedit.extension.platform.Watchdog;
 import com.sk89q.worldedit.extent.Extent;
@@ -81,14 +80,20 @@ import com.sk89q.worldedit.world.block.BlockTypes;
 import com.sk89q.worldedit.world.item.ItemType;
 import net.minecraft.Util;
 import net.minecraft.core.BlockPos;
-import net.minecraft.core.Registry;
+import net.minecraft.core.Holder;
+import net.minecraft.core.RegistryAccess;
+import net.minecraft.core.component.DataComponentPatch;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtOps;
+import net.minecraft.nbt.Tag;
 import net.minecraft.network.protocol.game.ClientboundBlockEntityDataPacket;
 import net.minecraft.network.protocol.game.ClientboundEntityEventPacket;
 import net.minecraft.resources.ResourceKey;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.dedicated.DedicatedServer;
-import net.minecraft.server.level.ChunkHolder;
+import net.minecraft.server.level.ChunkResult;
 import net.minecraft.server.level.ServerChunkCache;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.server.level.progress.ChunkProgressListener;
@@ -112,10 +117,10 @@ import net.minecraft.world.level.block.entity.StructureBlockEntity;
 import net.minecraft.world.level.block.state.StateDefinition;
 import net.minecraft.world.level.block.state.properties.DirectionProperty;
 import net.minecraft.world.level.chunk.ChunkAccess;
-import net.minecraft.world.level.chunk.ChunkStatus;
 import net.minecraft.world.level.chunk.LevelChunk;
+import net.minecraft.world.level.chunk.status.ChunkStatus;
 import net.minecraft.world.level.dimension.LevelStem;
-import net.minecraft.world.level.levelgen.WorldGenSettings;
+import net.minecraft.world.level.levelgen.WorldOptions;
 import net.minecraft.world.level.storage.LevelStorageSource;
 import net.minecraft.world.level.storage.PrimaryLevelData;
 import net.minecraft.world.phys.BlockHitResult;
@@ -124,13 +129,13 @@ import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.World.Environment;
 import org.bukkit.block.data.BlockData;
-import org.bukkit.craftbukkit.v1_18_R2.CraftServer;
+import org.bukkit.craftbukkit.CraftServer;
-import org.bukkit.craftbukkit.v1_18_R2.CraftWorld;
+import org.bukkit.craftbukkit.CraftWorld;
-import org.bukkit.craftbukkit.v1_18_R2.block.data.CraftBlockData;
+import org.bukkit.craftbukkit.block.data.CraftBlockData;
-import org.bukkit.craftbukkit.v1_18_R2.entity.CraftEntity;
+import org.bukkit.craftbukkit.entity.CraftEntity;
-import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
-import org.bukkit.craftbukkit.v1_18_R2.util.CraftMagicNumbers;
+import org.bukkit.craftbukkit.util.CraftMagicNumbers;
 import org.bukkit.entity.Player;
 import org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason;
 import org.bukkit.generator.ChunkGenerator;
@@ -155,7 +160,6 @@ import java.util.Set;
 import java.util.TreeMap;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
-import java.util.concurrent.ForkJoinPool;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import java.util.stream.Collectors;
@@ -166,33 +170,28 @@ import static com.google.common.base.Preconditions.checkState;
 
 public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft.nbt.Tag> {
 
-    private static final Set<SideEffect> SUPPORTED_SIDE_EFFECTS = Sets.immutableEnumSet(
+    private static final Codec<DataComponentPatch> COMPONENTS_CODEC = DataComponentPatch.CODEC.optionalFieldOf(
-            SideEffect.NEIGHBORS,
+            "components", DataComponentPatch.EMPTY
-            SideEffect.LIGHTING,
+    ).codec();
-            SideEffect.VALIDATION,
+
-            SideEffect.ENTITY_AI,
+    private final Logger logger = Logger.getLogger(getClass().getCanonicalName());
-            SideEffect.EVENTS,
+
-            SideEffect.UPDATE
-    );
     private final Field serverWorldsField;
     private final Method getChunkFutureMethod;
     private final Field chunkProviderExecutorField;
-    private final Logger LOGGER = Logger.getLogger(getClass().getCanonicalName());
+    private final Watchdog watchdog;
 
     // ------------------------------------------------------------------------
     // Code that may break between versions of Minecraft
     // ------------------------------------------------------------------------
-    private final Watchdog watchdog;
-    private final LoadingCache<ServerLevel, PaperweightFakePlayer> fakePlayers
-            = CacheBuilder.newBuilder().weakKeys().softValues().build(CacheLoader.from(PaperweightFakePlayer::new));
 
     public PaperweightAdapter() throws NoSuchFieldException, NoSuchMethodException {
         // A simple test
         CraftServer.class.cast(Bukkit.getServer());
 
         int dataVersion = CraftMagicNumbers.INSTANCE.getDataVersion();
-        if (dataVersion != 2975) {
+        if (dataVersion != 3837 && dataVersion != 3839) {
-            throw new UnsupportedClassVersionError("Not 1.18.2!");
+            throw new UnsupportedClassVersionError("Not 1.20.(5/6)!");
         }
 
         serverWorldsField = CraftServer.class.getDeclaredField("worlds");
@@ -209,7 +208,7 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
         );
         chunkProviderExecutorField.setAccessible(true);
 
-        new PaperweightDataConverters(CraftMagicNumbers.INSTANCE.getDataVersion(), this).build(ForkJoinPool.commonPool());
+        new PaperweightDataConverters(CraftMagicNumbers.INSTANCE.getDataVersion(), this).buildUnoptimized();
 
         Watchdog watchdog;
         try {
@@ -231,6 +230,11 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
         }
     }
 
+    @Override
+    public DataFixer getDataFixer() {
+        return PaperweightDataConverters.INSTANCE;
+    }
+
     /**
      * Read the given NBT data into the given tile entity.
      *
@@ -238,7 +242,7 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
      * @param tag        the tag
      */
     static void readTagIntoTileEntity(net.minecraft.nbt.CompoundTag tag, BlockEntity tileEntity) {
-        tileEntity.load(tag);
+        tileEntity.loadWithComponents(tag, MinecraftServer.getServer().registryAccess());
         tileEntity.setChanged();
     }
 
@@ -271,9 +275,7 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
      * @param tag    the tag
      */
     private static void readTagIntoEntity(net.minecraft.nbt.CompoundTag tag, Entity entity) {
-        //FAWE start - avoid villager async catcher
+        entity.load(tag);
-        PaperweightPlatformAdapter.readEntityIntoTag(entity, tag);
-        //FAWE end
     }
 
     /**
@@ -287,34 +289,14 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
     }
 
     private static Block getBlockFromType(BlockType blockType) {
-        return Registry.BLOCK.get(ResourceLocation.tryParse(blockType.getId()));
+
+        return DedicatedServer.getServer().registryAccess().registryOrThrow(Registries.BLOCK).get(ResourceLocation.tryParse(
+                blockType.getId()));
     }
 
     private static Item getItemFromType(ItemType itemType) {
-        return Registry.ITEM.get(ResourceLocation.tryParse(itemType.getId()));
+        return DedicatedServer.getServer().registryAccess().registryOrThrow(Registries.ITEM).get(ResourceLocation.tryParse(
-    }
+                itemType.getId()));
-
-    private static net.minecraft.core.Direction adapt(Direction face) {
-        switch (face) {
-            case NORTH:
-                return net.minecraft.core.Direction.NORTH;
-            case SOUTH:
-                return net.minecraft.core.Direction.SOUTH;
-            case WEST:
-                return net.minecraft.core.Direction.WEST;
-            case EAST:
-                return net.minecraft.core.Direction.EAST;
-            case DOWN:
-                return net.minecraft.core.Direction.DOWN;
-            case UP:
-            default:
-                return net.minecraft.core.Direction.UP;
-        }
-    }
-
-    @Override
-    public DataFixer getDataFixer() {
-        return PaperweightDataConverters.INSTANCE;
     }
 
     @Override
@@ -334,6 +316,25 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
         return combinedId == 0 && state.getBlockType() != BlockTypes.AIR ? OptionalInt.empty() : OptionalInt.of(combinedId);
     }
 
+    public BlockState adapt(net.minecraft.world.level.block.state.BlockState blockState) {
+        int internalId = Block.getId(blockState);
+        BlockState state = BlockStateIdAccess.getBlockStateById(internalId);
+        if (state == null) {
+            state = BukkitAdapter.adapt(CraftBlockData.createData(blockState));
+        }
+
+        return state;
+    }
+
+    public BiomeType adapt(Biome biome) {
+        var mcBiome = ((CraftServer) Bukkit.getServer()).getServer().registryAccess().registryOrThrow(Registries.BIOME).getKey(
+                biome);
+        if (mcBiome == null) {
+            return null;
+        }
+        return BiomeType.REGISTRY.get(mcBiome.toString());
+    }
+
     @Override
     public BlockState getBlock(Location location) {
         checkNotNull(location);
@@ -373,21 +374,37 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
         // Read the NBT data
         BlockEntity te = chunk.getBlockEntity(blockPos);
         if (te != null) {
-            net.minecraft.nbt.CompoundTag tag = te.saveWithId();
+            net.minecraft.nbt.CompoundTag tag = te.saveWithId(MinecraftServer.getServer().registryAccess());
-            //FAWE start - BinaryTag
             return state.toBaseBlock((CompoundBinaryTag) toNativeBinary(tag));
-            //FAWE end
         }
 
         return state.toBaseBlock();
     }
 
+    private static final HashMap<BiomeType, Holder<Biome>> biomeTypeToNMSCache = new HashMap<>();
+    private static final HashMap<Holder<Biome>, BiomeType> biomeTypeFromNMSCache = new HashMap<>();
+
     @Override
     public WorldNativeAccess<?, ?, ?> createWorldNativeAccess(org.bukkit.World world) {
-        return new PaperweightWorldNativeAccess(
+        return new PaperweightWorldNativeAccess(this, new WeakReference<>(((CraftWorld) world).getHandle()));
-                this,
+    }
-                new WeakReference<>(((CraftWorld) world).getHandle())
+
-        );
+    private static net.minecraft.core.Direction adapt(Direction face) {
+        switch (face) {
+            case NORTH:
+                return net.minecraft.core.Direction.NORTH;
+            case SOUTH:
+                return net.minecraft.core.Direction.SOUTH;
+            case WEST:
+                return net.minecraft.core.Direction.WEST;
+            case EAST:
+                return net.minecraft.core.Direction.EAST;
+            case DOWN:
+                return net.minecraft.core.Direction.DOWN;
+            case UP:
+            default:
+                return net.minecraft.core.Direction.UP;
+        }
     }
 
     @SuppressWarnings({"rawtypes", "unchecked"})
@@ -429,16 +446,19 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
         CraftEntity craftEntity = ((CraftEntity) entity);
         Entity mcEntity = craftEntity.getHandle();
 
+        // Do not allow creating of passenger entity snapshots, passengers are included in the vehicle entity
+        if (mcEntity.isPassenger()) {
+            return null;
+        }
+
         String id = getEntityId(mcEntity);
 
         net.minecraft.nbt.CompoundTag tag = new net.minecraft.nbt.CompoundTag();
         readEntityIntoTag(mcEntity, tag);
-        //FAWE start - CompoundBinaryTag
         return new BaseEntity(
                 com.sk89q.worldedit.world.entity.EntityTypes.get(id),
                 LazyReference.from(() -> (CompoundBinaryTag) toNativeBinary(tag))
         );
-        //FAWE end
     }
 
     @Nullable
@@ -471,6 +491,22 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
         }
     }
 
+    // This removes all unwanted tags from the main entity and all its passengers
+    private void removeUnwantedEntityTagsRecursively(net.minecraft.nbt.CompoundTag tag) {
+        for (String name : Constants.NO_COPY_ENTITY_NBT_FIELDS) {
+            tag.remove(name);
+        }
+
+        // Adapted from net.minecraft.world.entity.EntityType#loadEntityRecursive
+        if (tag.contains("Passengers", NBTConstants.TYPE_LIST)) {
+            net.minecraft.nbt.ListTag nbttaglist = tag.getList("Passengers", NBTConstants.TYPE_COMPOUND);
+
+            for (int i = 0; i < nbttaglist.size(); ++i) {
+                removeUnwantedEntityTagsRecursively(nbttaglist.getCompound(i));
+            }
+        }
+    }
+
     @Override
     public Component getRichBlockName(BlockType blockType) {
         return TranslatableComponent.of(getBlockFromType(blockType).getDescriptionId());
@@ -487,26 +523,44 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
     }
 
     @SuppressWarnings({"unchecked", "rawtypes"})
-    private static final LoadingCache<net.minecraft.world.level.block.state.properties.Property, Property<?>> PROPERTY_CACHE = CacheBuilder.newBuilder().build(new CacheLoader<net.minecraft.world.level.block.state.properties.Property, Property<?>>() {
+    private static final LoadingCache<net.minecraft.world.level.block.state.properties.Property, Property<?>> PROPERTY_CACHE = CacheBuilder
-        @Override
+            .newBuilder()
-        public Property<?> load(net.minecraft.world.level.block.state.properties.Property state) throws Exception {
+            .build(new CacheLoader<net.minecraft.world.level.block.state.properties.Property, Property<?>>() {
-            if (state instanceof net.minecraft.world.level.block.state.properties.BooleanProperty) {
+                @Override
-                return new BooleanProperty(state.getName(), ImmutableList.copyOf(state.getPossibleValues()));
+                public Property<?> load(net.minecraft.world.level.block.state.properties.Property state) throws Exception {
-            } else if (state instanceof DirectionProperty) {
+                    if (state instanceof net.minecraft.world.level.block.state.properties.BooleanProperty) {
-                return new DirectionalProperty(state.getName(),
+                        return new BooleanProperty(state.getName(), ImmutableList.copyOf(state.getPossibleValues()));
-                        (List<Direction>) state.getPossibleValues().stream().map(e -> Direction.valueOf(((StringRepresentable) e).getSerializedName().toUpperCase(Locale.ROOT))).collect(Collectors.toList()));
+                    } else if (state instanceof DirectionProperty) {
-            } else if (state instanceof net.minecraft.world.level.block.state.properties.EnumProperty) {
+                        return new DirectionalProperty(
-                return new EnumProperty(state.getName(),
+                                state.getName(),
-                        (List<String>) state.getPossibleValues().stream().map(e -> ((StringRepresentable) e).getSerializedName()).collect(Collectors.toList()));
+                                (List<Direction>) state
-            } else if (state instanceof net.minecraft.world.level.block.state.properties.IntegerProperty) {
+                                        .getPossibleValues()
-                return new IntegerProperty(state.getName(), ImmutableList.copyOf(state.getPossibleValues()));
+                                        .stream()
-            } else {
+                                        .map(e -> Direction.valueOf(((StringRepresentable) e)
-                throw new IllegalArgumentException("FastAsyncWorldEdit needs an update to support " + state.getClass().getSimpleName());
+                                                .getSerializedName()
-            }
+                                                .toUpperCase(Locale.ROOT)))
-        }
+                                        .collect(Collectors.toList())
-    });
+                        );
+                    } else if (state instanceof net.minecraft.world.level.block.state.properties.EnumProperty) {
+                        return new EnumProperty(
+                                state.getName(),
+                                (List<String>) state
+                                        .getPossibleValues()
+                                        .stream()
+                                        .map(e -> ((StringRepresentable) e).getSerializedName())
+                                        .collect(Collectors.toList())
+                        );
+                    } else if (state instanceof net.minecraft.world.level.block.state.properties.IntegerProperty) {
+                        return new IntegerProperty(state.getName(), ImmutableList.copyOf(state.getPossibleValues()));
+                    } else {
+                        throw new IllegalArgumentException("WorldEdit needs an update to support " + state
+                                .getClass()
+                                .getSimpleName());
+                    }
+                }
+            });
 
-    @SuppressWarnings({ "rawtypes" })
+    @SuppressWarnings({"rawtypes"})
     @Override
     public Map<String, ? extends Property<?>> getProperties(BlockType blockType) {
         Map<String, Property<?>> properties = new TreeMap<>();
@@ -520,50 +574,68 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
         return properties;
     }
 
-    //FAWE start - CompoundBinaryTag > CompoundTag
     @Override
     public void sendFakeNBT(Player player, BlockVector3 pos, CompoundBinaryTag nbtData) {
-        ((CraftPlayer) player).getHandle().networkManager.send(ClientboundBlockEntityDataPacket.create(
+        var structureBlock = new StructureBlockEntity(
-                new StructureBlockEntity(
+                new BlockPos(pos.getX(), pos.getY(), pos.getZ()),
-                        new BlockPos(pos.getBlockX(), pos.getBlockY(), pos.getBlockZ()),
+                Blocks.STRUCTURE_BLOCK.defaultBlockState()
-                        Blocks.STRUCTURE_BLOCK.defaultBlockState()
+        );
-                ),
+        structureBlock.setLevel(((CraftPlayer) player).getHandle().level());
-                __ -> (net.minecraft.nbt.CompoundTag) fromNativeBinary(nbtData)
+        ((CraftPlayer) player).getHandle().connection.send(ClientboundBlockEntityDataPacket.create(
+                structureBlock,
+                (blockEntity, registryAccess) -> (net.minecraft.nbt.CompoundTag) fromNativeBinary(nbtData)
         ));
     }
-    //FAWE end
 
     @Override
     public void sendFakeOP(Player player) {
-        ((CraftPlayer) player).getHandle().networkManager.send(new ClientboundEntityEventPacket(
+        ((CraftPlayer) player).getHandle().connection.send(new ClientboundEntityEventPacket(
                 ((CraftPlayer) player).getHandle(), (byte) 28
         ));
     }
 
     @Override
     public org.bukkit.inventory.ItemStack adapt(BaseItemStack item) {
-        ItemStack stack = new ItemStack(Registry.ITEM.get(ResourceLocation.tryParse(item.getType().getId())), item.getAmount());
+        final RegistryAccess.Frozen registryAccess = DedicatedServer.getServer().registryAccess();
-        stack.setTag(((net.minecraft.nbt.CompoundTag) fromNative(item.getNbtData())));
+        ItemStack stack = new ItemStack(
+                registryAccess.registryOrThrow(Registries.ITEM).get(ResourceLocation.tryParse(item.getType().getId())),
+                item.getAmount()
+        );
+        final CompoundTag nbt = (net.minecraft.nbt.CompoundTag) fromNative(item.getNbtData());
+        final DataComponentPatch patch = COMPONENTS_CODEC
+                .parse(registryAccess.createSerializationContext(NbtOps.INSTANCE), nbt)
+                .getOrThrow();
+        stack.applyComponents(patch);
         return CraftItemStack.asCraftMirror(stack);
     }
 
     @Override
     public BaseItemStack adapt(org.bukkit.inventory.ItemStack itemStack) {
+        final RegistryAccess.Frozen registryAccess = DedicatedServer.getServer().registryAccess();
         final ItemStack nmsStack = CraftItemStack.asNMSCopy(itemStack);
-        final BaseItemStack weStack = new BaseItemStack(BukkitAdapter.asItemType(itemStack.getType()), itemStack.getAmount());
+        final Tag tag = COMPONENTS_CODEC.encodeStart(
-        //FAWE start - CBT > CT
+                registryAccess.createSerializationContext(NbtOps.INSTANCE),
-        weStack.setNbt(((CompoundBinaryTag) toNativeBinary(nmsStack.getTag())));
+                nmsStack.getComponentsPatch()
-        //FAWE end
+        ).getOrThrow();
-        return weStack;
+        return new BaseItemStack(
+                BukkitAdapter.asItemType(itemStack.getType()),
+                LazyReference.from(() -> (CompoundBinaryTag) toNativeBinary(tag)),
+                itemStack.getAmount()
+        );
     }
 
+    private final LoadingCache<ServerLevel, PaperweightFakePlayer> fakePlayers
+            = CacheBuilder.newBuilder().weakKeys().softValues().build(CacheLoader.from(PaperweightFakePlayer::new));
+
     @Override
     public boolean simulateItemUse(org.bukkit.World world, BlockVector3 position, BaseItem item, Direction face) {
         CraftWorld craftWorld = (CraftWorld) world;
         ServerLevel worldServer = craftWorld.getHandle();
-        ItemStack stack = CraftItemStack.asNMSCopy(BukkitAdapter.adapt(item instanceof BaseItemStack
+        ItemStack stack = CraftItemStack.asNMSCopy(adapt(
-                ? ((BaseItemStack) item) : new BaseItemStack(item.getType(), item.getNbtData(), 1)));
+                item instanceof BaseItemStack
-        stack.setTag((net.minecraft.nbt.CompoundTag) fromNative(item.getNbtData()));
+                        ? ((BaseItemStack) item)
+                        : new BaseItemStack(item.getType(), item.getNbtReference(), 1)
+        ));
 
         PaperweightFakePlayer fakePlayer;
         try {
@@ -572,20 +644,20 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
             return false;
         }
         fakePlayer.setItemInHand(InteractionHand.MAIN_HAND, stack);
-        fakePlayer.absMoveTo(position.getBlockX(), position.getBlockY(), position.getBlockZ(),
+        fakePlayer.absMoveTo(position.getX(), position.getY(), position.getZ(),
                 (float) face.toVector().toYaw(), (float) face.toVector().toPitch()
         );
 
-        final BlockPos blockPos = new BlockPos(position.getBlockX(), position.getBlockY(), position.getBlockZ());
+        final BlockPos blockPos = new BlockPos(position.getX(), position.getY(), position.getZ());
         final Vec3 blockVec = Vec3.atLowerCornerOf(blockPos);
         final net.minecraft.core.Direction enumFacing = adapt(face);
         BlockHitResult rayTrace = new BlockHitResult(blockVec, enumFacing, blockPos, false);
         UseOnContext context = new UseOnContext(fakePlayer, InteractionHand.MAIN_HAND, rayTrace);
-        InteractionResult result = stack.useOn(context, InteractionHand.MAIN_HAND);
+        InteractionResult result = stack.useOn(context);
         if (result != InteractionResult.SUCCESS) {
             if (worldServer
                     .getBlockState(blockPos)
-                    .use(worldServer, fakePlayer, InteractionHand.MAIN_HAND, rayTrace)
+                    .useItemOn(stack, worldServer, fakePlayer, InteractionHand.MAIN_HAND, rayTrace)
                     .consumesAction()) {
                 result = InteractionResult.SUCCESS;
             } else {
@@ -621,18 +693,18 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
         Environment env = bukkitWorld.getEnvironment();
         ChunkGenerator gen = bukkitWorld.getGenerator();
 
-        Path tempDir = Files.createTempDirectory("FastAsyncWorldEditWorldGen");
+        Path tempDir = Files.createTempDirectory("WorldEditWorldGen");
         LevelStorageSource levelStorage = LevelStorageSource.createDefault(tempDir);
         ResourceKey<LevelStem> worldDimKey = getWorldDimKey(env);
         try (LevelStorageSource.LevelStorageAccess session = levelStorage.createAccess("faweregentempworld", worldDimKey)) {
             ServerLevel originalWorld = ((CraftWorld) bukkitWorld).getHandle();
             PrimaryLevelData levelProperties = (PrimaryLevelData) originalWorld.getServer()
                     .getWorldData().overworldData();
-            WorldGenSettings originalOpts = levelProperties.worldGenSettings();
+            WorldOptions originalOpts = levelProperties.worldGenOptions();
 
             long seed = options.getSeed().orElse(originalWorld.getSeed());
-            WorldGenSettings newOpts = options.getSeed().isPresent()
+            WorldOptions newOpts = options.getSeed().isPresent()
-                    ? originalOpts.withSeed(levelProperties.isHardcore(), OptionalLong.of(seed))
+                    ? originalOpts.withSeed(OptionalLong.of(seed))
                     : originalOpts;
 
             LevelSettings newWorldSettings = new LevelSettings(
@@ -642,23 +714,40 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
                     levelProperties.settings.difficulty(),
                     levelProperties.settings.allowCommands(),
                     levelProperties.settings.gameRules(),
-                    levelProperties.settings.getDataPackConfig()
+                    levelProperties.settings.getDataConfiguration()
+            );
+
+            PrimaryLevelData.SpecialWorldProperty specialWorldProperty =
+                    levelProperties.isFlatWorld()
+                            ? PrimaryLevelData.SpecialWorldProperty.FLAT
+                            : levelProperties.isDebugWorld()
+                                    ? PrimaryLevelData.SpecialWorldProperty.DEBUG
+                                    : PrimaryLevelData.SpecialWorldProperty.NONE;
+
+            PrimaryLevelData newWorldData = new PrimaryLevelData(
+                    newWorldSettings,
+                    newOpts,
+                    specialWorldProperty,
+                    Lifecycle.stable()
             );
-            PrimaryLevelData newWorldData = new PrimaryLevelData(newWorldSettings, newOpts, Lifecycle.stable());
 
             ServerLevel freshWorld = new ServerLevel(
                     originalWorld.getServer(),
                     originalWorld.getServer().executor,
                     session, newWorldData,
                     originalWorld.dimension(),
-                    originalWorld.dimensionTypeRegistration(),
+                    new LevelStem(
+                            originalWorld.dimensionTypeRegistration(),
+                            originalWorld.getChunkSource().getGenerator()
+                    ),
                     new NoOpWorldLoadListener(),
-                    newOpts.dimensions().get(worldDimKey).generator(),
                     originalWorld.isDebug(),
                     seed,
                     ImmutableList.of(),
                     false,
-                    env, gen,
+                    originalWorld.getRandomSequences(),
+                    env,
+                    gen,
                     bukkitWorld.getBiomeProvider()
             );
             try {
@@ -678,7 +767,7 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
     }
 
     private BiomeType adapt(ServerLevel serverWorld, Biome origBiome) {
-        ResourceLocation key = serverWorld.registryAccess().registryOrThrow(Registry.BIOME_REGISTRY).getKey(origBiome);
+        ResourceLocation key = serverWorld.registryAccess().registryOrThrow(Registries.BIOME).getKey(origBiome);
         if (key == null) {
             return null;
         }
@@ -721,10 +810,8 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
             Objects.requireNonNull(state);
             BlockEntity blockEntity = chunk.getBlockEntity(pos);
             if (blockEntity != null) {
-                net.minecraft.nbt.CompoundTag tag = blockEntity.saveWithId();
+                net.minecraft.nbt.CompoundTag tag = blockEntity.saveWithId(serverWorld.registryAccess());
-                //FAWE start - BinaryTag
                 state = state.toBaseBlock(((CompoundBinaryTag) toNativeBinary(tag)));
-                //FAWE end
             }
             extent.setBlock(vec, state.toBaseBlock());
             if (options.shouldRegenBiomes()) {
@@ -746,9 +833,9 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
             try {
                 //noinspection unchecked
                 chunkLoadings.add(
-                        ((CompletableFuture<Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure>>)
+                        ((CompletableFuture<ChunkResult<ChunkAccess>>)
                                 getChunkFutureMethod.invoke(chunkManager, chunk.getX(), chunk.getZ(), ChunkStatus.FEATURES, true))
-                                .thenApply(either -> either.left().orElse(null))
+                                .thenApply(either -> either.orElse(null))
                 );
             } catch (IllegalAccessException | InvocationTargetException e) {
                 throw new IllegalStateException("Couldn't load chunk for regen.", e);
@@ -769,6 +856,15 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
         }
     }
 
+    private static final Set<SideEffect> SUPPORTED_SIDE_EFFECTS = Sets.immutableEnumSet(
+            SideEffect.NEIGHBORS,
+            SideEffect.LIGHTING,
+            SideEffect.VALIDATION,
+            SideEffect.ENTITY_AI,
+            SideEffect.EVENTS,
+            SideEffect.UPDATE
+    );
+
     @Override
     public Set<SideEffect> getSupportedSideEffects() {
         return SUPPORTED_SIDE_EFFECTS;
@@ -797,7 +893,6 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
      * @param foreign non-native NMS NBT structure
      * @return native WorldEdit NBT structure
      */
-    //FAWE start - BinaryTag
     @Override
     public BinaryTag toNativeBinary(net.minecraft.nbt.Tag foreign) {
         if (foreign == null) {
@@ -830,7 +925,7 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
             try {
                 return toNativeList((net.minecraft.nbt.ListTag) foreign);
             } catch (Throwable e) {
-                LOGGER.log(Level.WARNING, "Failed to convert net.minecraft.nbt.ListTag", e);
+                logger.log(Level.WARNING, "Failed to convert net.minecraft.nbt.ListTag", e);
                 return ListBinaryTag.empty();
             }
         } else if (foreign instanceof net.minecraft.nbt.LongTag) {
@@ -855,7 +950,7 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
      * @throws IllegalArgumentException on error
      */
     private ListBinaryTag toNativeList(net.minecraft.nbt.ListTag foreign) throws SecurityException, IllegalArgumentException {
-        ListBinaryTag.Builder<BinaryTag> values = ListBinaryTag.builder();
+        ListBinaryTag.Builder values = ListBinaryTag.builder();
 
         for (net.minecraft.nbt.Tag tag : foreign) {
             values.add(toNativeBinary(tag));
@@ -895,8 +990,9 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
             return new net.minecraft.nbt.IntArrayTag(((IntArrayBinaryTag) foreign).value());
         } else if (foreign instanceof LongArrayBinaryTag) {
             return new net.minecraft.nbt.LongArrayTag(((LongArrayBinaryTag) foreign).value());
-        } else if (foreign instanceof ListBinaryTag foreignList) {
+        } else if (foreign instanceof ListBinaryTag) {
             net.minecraft.nbt.ListTag tag = new net.minecraft.nbt.ListTag();
+            ListBinaryTag foreignList = (ListBinaryTag) foreign;
             for (BinaryTag t : foreignList) {
                 tag.add(fromNativeBinary(t));
             }
@@ -913,7 +1009,6 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
             throw new IllegalArgumentException("Don't know how to make NMS " + foreign.getClass().getCanonicalName());
         }
     }
-    //FAWE end
 
     @Override
     public boolean supportsWatchdog() {
@@ -925,54 +1020,6 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
         watchdog.tick();
     }
 
-    private static class MojangWatchdog implements Watchdog {
-
-        private final DedicatedServer server;
-        private final Field tickField;
-
-        MojangWatchdog(DedicatedServer server) throws NoSuchFieldException {
-            this.server = server;
-            Field tickField = MinecraftServer.class.getDeclaredField(
-                    Refraction.pickName("nextTickTime", "ao")
-            );
-            tickField.setAccessible(true);
-            this.tickField = tickField;
-        }
-
-        @Override
-        public void tick() {
-            try {
-                tickField.set(server, Util.getMillis());
-            } catch (IllegalAccessException ignored) {
-            }
-        }
-
-    }
-
-    private static class NoOpWorldLoadListener implements ChunkProgressListener {
-
-        @Override
-        public void updateSpawnPos(ChunkPos spawnPos) {
-        }
-
-        @Override
-        public void onStatusChange(ChunkPos pos, @Nullable ChunkStatus status) {
-        }
-
-        @Override
-        public void start() {
-        }
-
-        @Override
-        public void stop() {
-        }
-
-        @Override
-        public void setChunkRadius(int radius) {
-        }
-
-    }
-
     private class SpigotWatchdog implements Watchdog {
 
         private final Field instanceField;
@@ -996,10 +1043,61 @@ public final class PaperweightAdapter implements BukkitImplAdapter<net.minecraft
                     WatchdogThread.tick();
                 }
             } catch (IllegalAccessException e) {
-                LOGGER.log(Level.WARNING, "Failed to tick watchdog", e);
+                logger.log(Level.WARNING, "Failed to tick watchdog", e);
             }
         }
 
     }
 
+    private static class MojangWatchdog implements Watchdog {
+
+        private final DedicatedServer server;
+        private final Field tickField;
+
+        MojangWatchdog(DedicatedServer server) throws NoSuchFieldException {
+            this.server = server;
+            Field tickField = MinecraftServer.class.getDeclaredField(
+                    Refraction.pickName("nextTickTime", "ah")
+            );
+            if (tickField.getType() != long.class) {
+                throw new IllegalStateException("nextTickTime is not a long field, mapping is likely incorrect");
+            }
+            tickField.setAccessible(true);
+            this.tickField = tickField;
+        }
+
+        @Override
+        public void tick() {
+            try {
+                tickField.set(server, Util.getMillis());
+            } catch (IllegalAccessException ignored) {
+            }
+        }
+
+    }
+
+    private static class NoOpWorldLoadListener implements ChunkProgressListener {
+
+        @Override
+        public void updateSpawnPos(ChunkPos spawnPos) {
+        }
+
+        @Override
+        public void onStatusChange(
+                final ChunkPos pos,
+                @org.jetbrains.annotations.Nullable final net.minecraft.world.level.chunk.status.ChunkStatus status
+        ) {
+
+        }
+
+        @Override
+        public void start() {
+        }
+
+        @Override
+        public void stop() {
+        }
+
+    }
+
 }

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/ext.fawe/v1_20_R4/PaperweightFakePlayer.java

@@ -17,18 +17,19 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package com.sk89q.worldedit.bukkit.adapter.ext.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.ext.fawe.v1_20_R4;
 
 import com.mojang.authlib.GameProfile;
-import net.minecraft.network.chat.ChatType;
 import net.minecraft.network.chat.Component;
-import net.minecraft.network.protocol.game.ServerboundClientInformationPacket;
+import net.minecraft.server.level.ClientInformation;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.stats.Stat;
 import net.minecraft.world.MenuProvider;
 import net.minecraft.world.damagesource.DamageSource;
 import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.HumanoidArm;
+import net.minecraft.world.entity.player.ChatVisiblity;
 import net.minecraft.world.level.block.entity.SignBlockEntity;
 import net.minecraft.world.phys.Vec3;
 import org.bukkit.event.player.PlayerTeleportEvent.TeleportCause;
@@ -37,15 +38,14 @@ import java.util.OptionalInt;
 import java.util.UUID;
 
 class PaperweightFakePlayer extends ServerPlayer {
-
+    private static final GameProfile FAKE_WORLDEDIT_PROFILE = new GameProfile(UUID.nameUUIDFromBytes("worldedit".getBytes()), "[WorldEdit]");
-    private static final GameProfile FAKE_WORLDEDIT_PROFILE = new GameProfile(
-            UUID.nameUUIDFromBytes("worldedit".getBytes()),
-            "[WorldEdit]"
-    );
     private static final Vec3 ORIGIN = new Vec3(0.0D, 0.0D, 0.0D);
+    private static final ClientInformation FAKE_CLIENT_INFO = new ClientInformation(
+            "en_US", 16, ChatVisiblity.FULL, true, 0, HumanoidArm.LEFT, false, false
+    );
 
     PaperweightFakePlayer(ServerLevel world) {
-        super(world.getServer(), world, FAKE_WORLDEDIT_PROFILE);
+        super(world.getServer(), world, FAKE_WORLDEDIT_PROFILE, FAKE_CLIENT_INFO);
     }
 
     @Override
@@ -72,17 +72,13 @@ class PaperweightFakePlayer extends ServerPlayer {
     }
 
     @Override
-    public void updateOptions(ServerboundClientInformationPacket packet) {
+    public void updateOptions(ClientInformation clientOptions) {
     }
 
     @Override
     public void displayClientMessage(Component message, boolean actionBar) {
     }
 
-    @Override
-    public void sendMessage(Component message, ChatType type, UUID sender) {
-    }
-
     @Override
     public void awardStat(Stat<?> stat, int amount) {
     }
@@ -97,7 +93,6 @@ class PaperweightFakePlayer extends ServerPlayer {
     }
 
     @Override
-    public void openTextEdit(SignBlockEntity sign) {
+    public void openTextEdit(SignBlockEntity sign, boolean front) {
     }
-
 }

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/ext.fawe/v1_20_R4/PaperweightWorldNativeAccess.java

@@ -17,7 +17,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package com.sk89q.worldedit.bukkit.adapter.ext.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.ext.fawe.v1_20_R4;
 
 import com.sk89q.worldedit.bukkit.BukkitAdapter;
 import com.sk89q.worldedit.internal.block.BlockStateIdAccess;
@@ -27,21 +27,19 @@ import com.sk89q.worldedit.util.SideEffectSet;
 import com.sk89q.worldedit.util.nbt.CompoundBinaryTag;
 import com.sk89q.worldedit.world.block.BlockState;
 import net.minecraft.core.BlockPos;
-import net.minecraft.server.level.ChunkHolder;
+import net.minecraft.server.level.FullChunkStatus;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.chunk.LevelChunk;
-import org.bukkit.craftbukkit.v1_18_R2.CraftWorld;
+import org.bukkit.craftbukkit.CraftWorld;
-import org.bukkit.craftbukkit.v1_18_R2.block.data.CraftBlockData;
+import org.bukkit.craftbukkit.block.data.CraftBlockData;
 import org.bukkit.event.block.BlockPhysicsEvent;
 
 import java.lang.ref.WeakReference;
 import java.util.Objects;
 import javax.annotation.Nullable;
 
-public class PaperweightWorldNativeAccess implements
+public class PaperweightWorldNativeAccess implements WorldNativeAccess<LevelChunk, net.minecraft.world.level.block.state.BlockState, BlockPos> {
-        WorldNativeAccess<LevelChunk, net.minecraft.world.level.block.state.BlockState, BlockPos> {
-
     private static final int UPDATE = 1;
     private static final int NOTIFY = 2;
 
@@ -83,19 +81,12 @@ public class PaperweightWorldNativeAccess implements
 
     @Nullable
     @Override
-    public net.minecraft.world.level.block.state.BlockState setBlockState(
+    public net.minecraft.world.level.block.state.BlockState setBlockState(LevelChunk chunk, BlockPos position, net.minecraft.world.level.block.state.BlockState state) {
-            LevelChunk chunk,
-            BlockPos position,
-            net.minecraft.world.level.block.state.BlockState state
-    ) {
         return chunk.setBlockState(position, state, false, this.sideEffectSet.shouldApply(SideEffect.UPDATE));
     }
 
     @Override
-    public net.minecraft.world.level.block.state.BlockState getValidBlockForPosition(
+    public net.minecraft.world.level.block.state.BlockState getValidBlockForPosition(net.minecraft.world.level.block.state.BlockState block, BlockPos position) {
-            net.minecraft.world.level.block.state.BlockState block,
-            BlockPos position
-    ) {
         return Block.updateFromNeighbourShapes(block, getWorld(), position);
     }
 
@@ -115,12 +106,7 @@ public class PaperweightWorldNativeAccess implements
     }
 
     @Override
-    public void notifyBlockUpdate(
+    public void notifyBlockUpdate(LevelChunk chunk, BlockPos position, net.minecraft.world.level.block.state.BlockState oldState, net.minecraft.world.level.block.state.BlockState newState) {
-            LevelChunk chunk,
-            BlockPos position,
-            net.minecraft.world.level.block.state.BlockState oldState,
-            net.minecraft.world.level.block.state.BlockState newState
-    ) {
         if (chunk.getSections()[getWorld().getSectionIndex(position.getY())] != null) {
             getWorld().sendBlockUpdated(position, oldState, newState, UPDATE | NOTIFY);
         }
@@ -128,7 +114,7 @@ public class PaperweightWorldNativeAccess implements
 
     @Override
     public boolean isChunkTicking(LevelChunk chunk) {
-        return chunk.getFullStatus().isOrAfter(ChunkHolder.FullChunkStatus.TICKING);
+        return chunk.getFullStatus().isOrAfter(FullChunkStatus.BLOCK_TICKING);
     }
 
     @Override
@@ -139,11 +125,7 @@ public class PaperweightWorldNativeAccess implements
     }
 
     @Override
-    public void notifyNeighbors(
+    public void notifyNeighbors(BlockPos pos, net.minecraft.world.level.block.state.BlockState oldState, net.minecraft.world.level.block.state.BlockState newState) {
-            BlockPos pos,
-            net.minecraft.world.level.block.state.BlockState oldState,
-            net.minecraft.world.level.block.state.BlockState newState
-    ) {
         ServerLevel world = getWorld();
         if (sideEffectSet.shouldApply(SideEffect.EVENTS)) {
             world.updateNeighborsAt(pos, oldState.getBlock());
@@ -162,27 +144,20 @@ public class PaperweightWorldNativeAccess implements
         }
     }
 
+    // Not sure why neighborChanged is deprecated
     private void fireNeighborChanged(BlockPos pos, ServerLevel world, Block block, BlockPos neighborPos) {
-        world.getBlockState(neighborPos).neighborChanged(world, neighborPos, block, pos, false);
+        world.getBlockState(neighborPos).handleNeighborChanged(world, neighborPos, block, pos, false);
     }
 
     @Override
-    public void updateNeighbors(
+    public void updateNeighbors(BlockPos pos, net.minecraft.world.level.block.state.BlockState oldState, net.minecraft.world.level.block.state.BlockState newState, int recursionLimit) {
-            BlockPos pos,
-            net.minecraft.world.level.block.state.BlockState oldState,
-            net.minecraft.world.level.block.state.BlockState newState,
-            int recursionLimit
-    ) {
         ServerLevel world = getWorld();
         // a == updateNeighbors
         // b == updateDiagonalNeighbors
         oldState.updateIndirectNeighbourShapes(world, pos, NOTIFY, recursionLimit);
         if (sideEffectSet.shouldApply(SideEffect.EVENTS)) {
             CraftWorld craftWorld = world.getWorld();
-            BlockPhysicsEvent event = new BlockPhysicsEvent(
+            BlockPhysicsEvent event = new BlockPhysicsEvent(craftWorld.getBlockAt(pos.getX(), pos.getY(), pos.getZ()), CraftBlockData.fromData(newState));
-                    craftWorld.getBlockAt(pos.getX(), pos.getY(), pos.getZ()),
-                    CraftBlockData.fromData(newState)
-            );
             world.getCraftServer().getPluginManager().callEvent(event);
             if (event.isCancelled()) {
                 return;
@@ -193,19 +168,13 @@ public class PaperweightWorldNativeAccess implements
     }
 
     @Override
-    public void onBlockStateChange(
+    public void onBlockStateChange(BlockPos pos, net.minecraft.world.level.block.state.BlockState oldState, net.minecraft.world.level.block.state.BlockState newState) {
-            BlockPos pos,
-            net.minecraft.world.level.block.state.BlockState oldState,
-            net.minecraft.world.level.block.state.BlockState newState
-    ) {
         getWorld().onBlockStateChange(pos, oldState, newState);
     }
 
-    //FAWE start
     @Override
     public void flush() {
 
     }
-    //FAWE end
 
 }

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R4/PaperweightBlockMaterial.java

@@ -1,28 +1,24 @@
-package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4;
 
 import com.google.common.base.Suppliers;
 import com.sk89q.jnbt.CompoundTag;
-import com.sk89q.util.ReflectionUtil;
+import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4.nbt.PaperweightLazyCompoundTag;
-import com.sk89q.worldedit.bukkit.adapter.Refraction;
-import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2.nbt.PaperweightLazyCompoundTag;
 import com.sk89q.worldedit.world.registry.BlockMaterial;
 import net.minecraft.core.BlockPos;
+import net.minecraft.server.dedicated.DedicatedServer;
 import net.minecraft.world.level.EmptyBlockGetter;
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.EntityBlock;
 import net.minecraft.world.level.block.entity.BlockEntity;
-import net.minecraft.world.level.block.state.BlockBehaviour;
 import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.world.level.material.Material;
+import net.minecraft.world.level.material.Fluids;
 import net.minecraft.world.level.material.PushReaction;
-import org.bukkit.craftbukkit.v1_18_R2.block.data.CraftBlockData;
+import org.bukkit.craftbukkit.block.data.CraftBlockData;
 
 public class PaperweightBlockMaterial implements BlockMaterial {
 
     private final Block block;
     private final BlockState blockState;
-    private final Material material;
-    private final boolean isTranslucent;
     private final CraftBlockData craftBlockData;
     private final org.bukkit.Material craftMaterial;
     private final int opacity;
@@ -35,22 +31,16 @@ public class PaperweightBlockMaterial implements BlockMaterial {
     public PaperweightBlockMaterial(Block block, BlockState blockState) {
         this.block = block;
         this.blockState = blockState;
-        this.material = blockState.getMaterial();
         this.craftBlockData = CraftBlockData.fromData(blockState);
         this.craftMaterial = craftBlockData.getMaterial();
-        BlockBehaviour.Properties blockInfo = ReflectionUtil.getField(BlockBehaviour.class, block, Refraction.pickName(
-                "properties", "aO"));
-        this.isTranslucent = !(boolean) ReflectionUtil.getField(BlockBehaviour.Properties.class, blockInfo,
-                Refraction.pickName("canOcclude", "n")
-        );
         opacity = blockState.getLightBlock(EmptyBlockGetter.INSTANCE, BlockPos.ZERO);
         BlockEntity tileEntity = !(block instanceof EntityBlock) ? null : ((EntityBlock) block).newBlockEntity(
                 BlockPos.ZERO,
                 blockState
         );
-        tile = tileEntity == null
+        tile = tileEntity == null ? null : new PaperweightLazyCompoundTag(
-                ? null
+                Suppliers.memoize(() -> tileEntity.saveWithId(DedicatedServer.getServer().registryAccess()))
-                : new PaperweightLazyCompoundTag(Suppliers.memoize(tileEntity::saveWithId));
+        );
     }
 
     public Block getBlock() {
@@ -65,10 +55,6 @@ public class PaperweightBlockMaterial implements BlockMaterial {
         return craftBlockData;
     }
 
-    public Material getMaterial() {
-        return material;
-    }
-
     @Override
     public boolean isAir() {
         return blockState.isAir();
@@ -81,7 +67,7 @@ public class PaperweightBlockMaterial implements BlockMaterial {
 
     @Override
     public boolean isOpaque() {
-        return material.isSolidBlocking();
+        return blockState.canOcclude();
     }
 
     @Override
@@ -91,12 +77,13 @@ public class PaperweightBlockMaterial implements BlockMaterial {
 
     @Override
     public boolean isLiquid() {
-        return material.isLiquid();
+        return !blockState.getFluidState().is(Fluids.EMPTY);
     }
 
     @Override
     public boolean isSolid() {
-        return material.isSolid();
+        // No access to world -> EmptyBlockGetter
+        return blockState.isSolidRender(EmptyBlockGetter.INSTANCE, BlockPos.ZERO);
     }
 
     @Override
@@ -126,27 +113,27 @@ public class PaperweightBlockMaterial implements BlockMaterial {
 
     @Override
     public boolean isFragileWhenPushed() {
-        return material.getPushReaction() == PushReaction.DESTROY;
+        return blockState.getPistonPushReaction() == PushReaction.DESTROY;
     }
 
     @Override
     public boolean isUnpushable() {
-        return material.getPushReaction() == PushReaction.BLOCK;
+        return blockState.getPistonPushReaction() == PushReaction.BLOCK;
     }
 
     @Override
     public boolean isTicksRandomly() {
-        return block.isRandomlyTicking(blockState);
+        return blockState.isRandomlyTicking();
     }
 
     @Override
     public boolean isMovementBlocker() {
-        return material.isSolid();
+        return craftMaterial.isSolid();
     }
 
     @Override
     public boolean isBurnable() {
-        return material.isFlammable();
+        return craftMaterial.isBurnable();
     }
 
     @Override
@@ -157,12 +144,12 @@ public class PaperweightBlockMaterial implements BlockMaterial {
 
     @Override
     public boolean isReplacedDuringPlacement() {
-        return material.isReplaceable();
+        return blockState.canBeReplaced();
     }
 
     @Override
     public boolean isTranslucent() {
-        return isTranslucent;
+        return !blockState.canOcclude();
     }
 
     @Override
@@ -183,7 +170,7 @@ public class PaperweightBlockMaterial implements BlockMaterial {
     @Override
     public int getMapColor() {
         // rgb field
-        return material.getColor().col;
+        return block.defaultMapColor().col;
     }
 
 }

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R4/PaperweightFaweAdapter.java

@@ -1,4 +1,4 @@
-package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4;
 
 import com.fastasyncworldedit.bukkit.adapter.FaweAdapter;
 import com.fastasyncworldedit.bukkit.adapter.NMSRelighterFactory;
@@ -12,14 +12,13 @@ import com.fastasyncworldedit.core.util.NbtUtils;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
+import com.mojang.serialization.Codec;
 import com.sk89q.jnbt.Tag;
 import com.sk89q.worldedit.blocks.BaseItemStack;
-import com.sk89q.worldedit.blocks.TileEntityBlock;
 import com.sk89q.worldedit.bukkit.BukkitAdapter;
 import com.sk89q.worldedit.bukkit.adapter.BukkitImplAdapter;
-import com.sk89q.worldedit.bukkit.adapter.ext.fawe.v1_18_R2.PaperweightAdapter;
+import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4.nbt.PaperweightLazyCompoundTag;
-import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2.nbt.PaperweightLazyCompoundTag;
+import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4.regen.PaperweightRegen;
-import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2.regen.PaperweightRegen;
 import com.sk89q.worldedit.entity.BaseEntity;
 import com.sk89q.worldedit.extent.Extent;
 import com.sk89q.worldedit.internal.block.BlockStateIdAccess;
@@ -35,6 +34,7 @@ import com.sk89q.worldedit.registry.state.Property;
 import com.sk89q.worldedit.util.Direction;
 import com.sk89q.worldedit.util.SideEffect;
 import com.sk89q.worldedit.util.SideEffectSet;
+import com.sk89q.worldedit.util.concurrency.LazyReference;
 import com.sk89q.worldedit.util.formatting.text.Component;
 import com.sk89q.worldedit.util.nbt.BinaryTag;
 import com.sk89q.worldedit.util.nbt.CompoundBinaryTag;
@@ -45,7 +45,6 @@ import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
 import com.sk89q.worldedit.world.block.BlockType;
-import com.sk89q.worldedit.world.block.BlockTypes;
 import com.sk89q.worldedit.world.block.BlockTypesCache;
 import com.sk89q.worldedit.world.entity.EntityType;
 import com.sk89q.worldedit.world.item.ItemType;
@@ -53,44 +52,48 @@ import com.sk89q.worldedit.world.registry.BlockMaterial;
 import io.papermc.lib.PaperLib;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Registry;
+import net.minecraft.core.RegistryAccess;
 import net.minecraft.core.WritableRegistry;
-import net.minecraft.nbt.IntTag;
+import net.minecraft.core.component.DataComponentPatch;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtOps;
 import net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.dedicated.DedicatedServer;
 import net.minecraft.server.level.ChunkHolder;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.util.StringRepresentable;
 import net.minecraft.world.entity.Entity;
 import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.level.Level;
 import net.minecraft.world.level.biome.Biome;
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.block.state.properties.BlockStateProperties;
 import net.minecraft.world.level.block.state.properties.DirectionProperty;
 import net.minecraft.world.level.chunk.LevelChunk;
-import net.minecraft.world.level.chunk.LevelChunkSection;
 import org.apache.logging.log4j.Logger;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.NamespacedKey;
 import org.bukkit.World;
 import org.bukkit.block.data.BlockData;
-import org.bukkit.craftbukkit.v1_18_R2.CraftChunk;
+import org.bukkit.craftbukkit.CraftServer;
-import org.bukkit.craftbukkit.v1_18_R2.CraftServer;
+import org.bukkit.craftbukkit.CraftWorld;
-import org.bukkit.craftbukkit.v1_18_R2.CraftWorld;
+import org.bukkit.craftbukkit.block.data.CraftBlockData;
-import org.bukkit.craftbukkit.v1_18_R2.block.data.CraftBlockData;
+import org.bukkit.craftbukkit.entity.CraftEntity;
-import org.bukkit.craftbukkit.v1_18_R2.entity.CraftEntity;
+import org.bukkit.craftbukkit.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
-import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.util.CraftNamespacedKey;
-import org.bukkit.craftbukkit.v1_18_R2.util.CraftNamespacedKey;
 import org.bukkit.entity.Player;
 
 import javax.annotation.Nullable;
 import java.lang.ref.WeakReference;
 import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
@@ -104,11 +107,24 @@ import java.util.function.Supplier;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import static net.minecraft.core.registries.Registries.BIOME;
+
 public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.Tag, ServerLevel> {
 
     private static final Logger LOGGER = LogManagerCompat.getLogger();
+    private static Method CHUNK_HOLDER_WAS_ACCESSIBLE_SINCE_LAST_SAVE;
+    private static final Codec<DataComponentPatch> COMPONENTS_CODEC = DataComponentPatch.CODEC.optionalFieldOf(
+            "components", DataComponentPatch.EMPTY
+    ).codec();
 
-    private final PaperweightAdapter parent;
+    static {
+        try {
+            CHUNK_HOLDER_WAS_ACCESSIBLE_SINCE_LAST_SAVE = ChunkHolder.class.getDeclaredMethod("wasAccessibleSinceLastSave");
+        } catch (NoSuchMethodException ignored) { // may not be present in newer paper versions
+        }
+    }
+
+    private final com.sk89q.worldedit.bukkit.adapter.ext.fawe.v1_20_R4.PaperweightAdapter parent;
     // ------------------------------------------------------------------------
     // Code that may break between versions of Minecraft
     // ------------------------------------------------------------------------
@@ -119,7 +135,7 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
     private Map<String, List<Property<?>>> allBlockProperties = null;
 
     public PaperweightFaweAdapter() throws NoSuchFieldException, NoSuchMethodException {
-        this.parent = new PaperweightAdapter();
+        this.parent = new com.sk89q.worldedit.bukkit.adapter.ext.fawe.v1_20_R4.PaperweightAdapter();
     }
 
     @Nullable
@@ -128,6 +144,10 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
         return resourceLocation == null ? null : resourceLocation.toString();
     }
 
+    private static void readEntityIntoTag(Entity entity, net.minecraft.nbt.CompoundTag compoundTag) {
+        entity.save(compoundTag);
+    }
+
     @Override
     public BukkitImplAdapter<net.minecraft.nbt.Tag> getParent() {
         return parent;
@@ -219,7 +239,8 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
     }
 
     public Block getBlock(BlockType blockType) {
-        return Registry.BLOCK.get(new ResourceLocation(blockType.getNamespace(), blockType.getResource()));
+        return DedicatedServer.getServer().registryAccess().registryOrThrow(Registries.BLOCK)
+                .get(new ResourceLocation(blockType.getNamespace(), blockType.getResource()));
     }
 
     @Deprecated
@@ -264,7 +285,7 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
             // Read the NBT data
             BlockEntity blockEntity = chunk.getBlockEntity(blockPos, LevelChunk.EntityCreationType.CHECK);
             if (blockEntity != null) {
-                net.minecraft.nbt.CompoundTag tag = blockEntity.saveWithId();
+                net.minecraft.nbt.CompoundTag tag = blockEntity.saveWithId(DedicatedServer.getServer().registryAccess());
                 return state.toBaseBlock((CompoundBinaryTag) toNativeBinary(tag));
             }
         }
@@ -277,54 +298,6 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
         return SideEffectSet.defaults().getSideEffectsToApply();
     }
 
-    public boolean setBlock(org.bukkit.Chunk chunk, int x, int y, int z, BlockStateHolder state, boolean update) {
-        CraftChunk craftChunk = (CraftChunk) chunk;
-        LevelChunk levelChunk = craftChunk.getHandle();
-        Level level = levelChunk.getLevel();
-
-        BlockPos blockPos = new BlockPos(x, y, z);
-        net.minecraft.world.level.block.state.BlockState blockState = ((PaperweightBlockMaterial) state.getMaterial()).getState();
-        LevelChunkSection[] levelChunkSections = levelChunk.getSections();
-        int y4 = y >> 4;
-        LevelChunkSection section = levelChunkSections[y4];
-
-        net.minecraft.world.level.block.state.BlockState existing;
-        if (section == null) {
-            existing = ((PaperweightBlockMaterial) BlockTypes.AIR.getDefaultState().getMaterial()).getState();
-        } else {
-            existing = section.getBlockState(x & 15, y & 15, z & 15);
-        }
-
-        levelChunk.removeBlockEntity(blockPos); // Force delete the old tile entity
-
-        CompoundBinaryTag compoundTag = state instanceof BaseBlock ? state.getNbt() : null;
-        if (compoundTag != null || existing instanceof TileEntityBlock) {
-            level.setBlock(blockPos, blockState, 0);
-            // remove tile
-            if (compoundTag != null) {
-                // We will assume that the tile entity was created for us,
-                // though we do not do this on the Forge version
-                BlockEntity blockEntity = level.getBlockEntity(blockPos);
-                if (blockEntity != null) {
-                    net.minecraft.nbt.CompoundTag tag = (net.minecraft.nbt.CompoundTag) fromNativeBinary(compoundTag);
-                    tag.put("x", IntTag.valueOf(x));
-                    tag.put("y", IntTag.valueOf(y));
-                    tag.put("z", IntTag.valueOf(z));
-                    blockEntity.load(tag); // readTagIntoTileEntity - load data
-                }
-            }
-        } else {
-            if (existing == blockState) {
-                return true;
-            }
-            levelChunk.setBlockState(blockPos, blockState, false);
-        }
-        if (update) {
-            level.getMinecraftWorld().sendBlockUpdated(blockPos, existing, blockState, 0);
-        }
-        return true;
-    }
-
     @Override
     public WorldNativeAccess<?, ?, ?> createWorldNativeAccess(org.bukkit.World world) {
         return new PaperweightFaweWorldNativeAccess(this, new WeakReference<>(getServerLevel(world)));
@@ -343,7 +316,7 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
             EntityType type = com.sk89q.worldedit.world.entity.EntityTypes.get(id);
             Supplier<CompoundBinaryTag> saveTag = () -> {
                 final net.minecraft.nbt.CompoundTag minecraftTag = new net.minecraft.nbt.CompoundTag();
-                PaperweightPlatformAdapter.readEntityIntoTag(mcEntity, minecraftTag);
+                readEntityIntoTag(mcEntity, minecraftTag);
                 //add Id for AbstractChangeSet to work
                 final CompoundBinaryTag tag = (CompoundBinaryTag) toNativeBinary(minecraftTag);
                 final Map<String, BinaryTag> tags = NbtUtils.getCompoundBinaryTagValues(tag);
@@ -474,7 +447,8 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
     public void sendFakeChunk(org.bukkit.World world, Player player, ChunkPacket chunkPacket) {
         ServerLevel nmsWorld = getServerLevel(world);
         ChunkHolder map = PaperweightPlatformAdapter.getPlayerChunk(nmsWorld, chunkPacket.getChunkX(), chunkPacket.getChunkZ());
-        if (map != null && map.wasAccessibleSinceLastSave()) {
+        if (map != null && wasAccessibleSinceLastSave(map)) {
+            boolean flag = false;
             // PlayerChunk.d players = map.players;
             Stream<ServerPlayer> stream = /*players.a(new ChunkCoordIntPair(packet.getChunkX(), packet.getChunkZ()), flag)
              */ Stream.empty();
@@ -516,11 +490,18 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
 
     @Override
     public org.bukkit.inventory.ItemStack adapt(BaseItemStack baseItemStack) {
+        final RegistryAccess.Frozen registryAccess = DedicatedServer.getServer().registryAccess();
         ItemStack stack = new ItemStack(
-                Registry.ITEM.get(ResourceLocation.tryParse(baseItemStack.getType().getId())),
+                registryAccess.registryOrThrow(Registries.ITEM).get(ResourceLocation.tryParse(baseItemStack.getType().getId())),
                 baseItemStack.getAmount()
         );
-        stack.setTag(((net.minecraft.nbt.CompoundTag) fromNative(baseItemStack.getNbtData())));
+        final CompoundTag nbt = (net.minecraft.nbt.CompoundTag) fromNative(baseItemStack.getNbtData());
+        if (nbt != null) {
+            final DataComponentPatch patch = COMPONENTS_CODEC
+                    .parse(registryAccess.createSerializationContext(NbtOps.INSTANCE), nbt)
+                    .getOrThrow();
+            stack.applyComponents(patch);
+        }
         return CraftItemStack.asCraftMirror(stack);
     }
 
@@ -547,29 +528,19 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
         return ((CraftWorld) world).getHandle();
     }
 
-    @Override
-    public List<org.bukkit.entity.Entity> getEntities(org.bukkit.World world) {
-        // Quickly add each entity to a list copy.
-        List<Entity> mcEntities = new ArrayList<>();
-        getServerLevel(world).entityManager.getEntityGetter().getAll().forEach(mcEntities::add);
-
-        List<org.bukkit.entity.Entity> list = new ArrayList<>();
-        mcEntities.forEach((mcEnt) -> {
-            org.bukkit.entity.Entity bukkitEntity = mcEnt.getBukkitEntity();
-            if (bukkitEntity.isValid()) {
-                list.add(bukkitEntity);
-            }
-
-        });
-        return list;
-    }
-
     @Override
     public BaseItemStack adapt(org.bukkit.inventory.ItemStack itemStack) {
+        final RegistryAccess.Frozen registryAccess = DedicatedServer.getServer().registryAccess();
         final ItemStack nmsStack = CraftItemStack.asNMSCopy(itemStack);
-        final BaseItemStack weStack = new BaseItemStack(BukkitAdapter.asItemType(itemStack.getType()), itemStack.getAmount());
+        final net.minecraft.nbt.Tag tag = COMPONENTS_CODEC.encodeStart(
-        weStack.setNbt(((CompoundBinaryTag) toNativeBinary(nmsStack.getTag())));
+                registryAccess.createSerializationContext(NbtOps.INSTANCE),
-        return weStack;
+                nmsStack.getComponentsPatch()
+        ).getOrThrow();
+        return new BaseItemStack(
+                BukkitAdapter.asItemType(itemStack.getType()),
+                LazyReference.from(() -> (CompoundBinaryTag) toNativeBinary(tag)),
+                itemStack.getAmount()
+        );
     }
 
     @Override
@@ -577,17 +548,12 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
         return parent.toNative(foreign);
     }
 
-    @Override
-    public BinaryTag toNativeBinary(final net.minecraft.nbt.Tag foreign) {
-        return parent.toNativeBinary(foreign);
-    }
-
     @Override
     public net.minecraft.nbt.Tag fromNative(Tag foreign) {
         if (foreign instanceof PaperweightLazyCompoundTag) {
             return ((PaperweightLazyCompoundTag) foreign).get();
         }
-        return (net.minecraft.nbt.Tag) parent.fromNative(foreign);
+        return parent.fromNative(foreign);
     }
 
     @Override
@@ -605,7 +571,7 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
         final Registry<Biome> registry = MinecraftServer
                 .getServer()
                 .registryAccess()
-                .ownedRegistryOrThrow(Registry.BIOME_REGISTRY);
+                .registryOrThrow(BIOME);
         ResourceLocation resourceLocation = ResourceLocation.tryParse(biomeType.getId());
         Biome biome = registry.get(resourceLocation);
         return registry.getId(biome);
@@ -616,8 +582,7 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
         WritableRegistry<Biome> biomeRegistry = (WritableRegistry<Biome>) ((CraftServer) Bukkit.getServer())
                 .getServer()
                 .registryAccess()
-                .ownedRegistryOrThrow(
+                .registryOrThrow(BIOME);
-                        Registry.BIOME_REGISTRY);
         List<ResourceLocation> keys = biomeRegistry.stream()
                 .map(biomeRegistry::getKey).filter(Objects::nonNull).toList();
         List<NamespacedKey> namespacedKeys = new ArrayList<>();
@@ -659,4 +624,16 @@ public final class PaperweightFaweAdapter extends FaweAdapter<net.minecraft.nbt.
         return new PaperweightPostProcessor();
     }
 
+    private boolean wasAccessibleSinceLastSave(ChunkHolder holder) {
+        if (!PaperLib.isPaper() || !PaperweightPlatformAdapter.POST_CHUNK_REWRITE) {
+            try {
+                return (boolean) CHUNK_HOLDER_WAS_ACCESSIBLE_SINCE_LAST_SAVE.invoke(holder);
+            } catch (IllegalAccessException | InvocationTargetException ignored) {
+                // fall-through
+            }
+        }
+        // Papers new chunk system has no related replacement - therefor we assume true.
+        return true;
+    }
+
 }

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R4/PaperweightFaweWorldNativeAccess.java

@@ -1,4 +1,4 @@
-package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4;
 
 import com.fastasyncworldedit.core.Fawe;
 import com.fastasyncworldedit.core.math.IntPair;
@@ -15,14 +15,15 @@ import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.server.MinecraftServer;
-import net.minecraft.server.level.ChunkHolder;
+import net.minecraft.server.dedicated.DedicatedServer;
 import net.minecraft.server.level.ServerChunkCache;
+import net.minecraft.server.level.FullChunkStatus;
 import net.minecraft.world.level.Level;
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.chunk.LevelChunk;
-import org.bukkit.craftbukkit.v1_18_R2.CraftWorld;
+import org.bukkit.craftbukkit.CraftWorld;
-import org.bukkit.craftbukkit.v1_18_R2.block.data.CraftBlockData;
+import org.bukkit.craftbukkit.block.data.CraftBlockData;
 import org.bukkit.event.block.BlockPhysicsEvent;
 
 import javax.annotation.Nullable;
@@ -102,7 +103,7 @@ public class PaperweightFaweWorldNativeAccess implements WorldNativeAccess<Level
         }
         // Since FAWE is.. Async we need to do it on the main thread (wooooo.. :( )
         cachedChanges.add(new CachedChange(levelChunk, blockPos, blockState));
-        cachedChunksToSend.add(new IntPair(levelChunk.bukkitChunk.getX(), levelChunk.bukkitChunk.getZ()));
+        cachedChunksToSend.add(new IntPair(levelChunk.locX, levelChunk.locZ));
         boolean nextTick = lastTick.get() > currentTick;
         if (nextTick || cachedChanges.size() >= 1024) {
             if (nextTick) {
@@ -140,7 +141,7 @@ public class PaperweightFaweWorldNativeAccess implements WorldNativeAccess<Level
             return false;
         }
         net.minecraft.nbt.Tag nativeTag = paperweightFaweAdapter.fromNativeBinary(tag);
-        blockEntity.load((CompoundTag) nativeTag);
+        blockEntity.loadWithComponents((CompoundTag) nativeTag, DedicatedServer.getServer().registryAccess());
         return true;
     }
 
@@ -157,7 +158,7 @@ public class PaperweightFaweWorldNativeAccess implements WorldNativeAccess<Level
 
     @Override
     public boolean isChunkTicking(LevelChunk levelChunk) {
-        return levelChunk.getFullStatus().isOrAfter(ChunkHolder.FullChunkStatus.TICKING);
+        return levelChunk.getFullStatus().isOrAfter(FullChunkStatus.BLOCK_TICKING);
     }
 
     @Override
@@ -181,7 +182,7 @@ public class PaperweightFaweWorldNativeAccess implements WorldNativeAccess<Level
             // Un-nest neighbour updating
             for (Direction direction : NEIGHBOUR_ORDER) {
                 BlockPos shifted = blockPos.relative(direction);
-                level.getBlockState(shifted).neighborChanged(level, shifted, oldState.getBlock(), blockPos, false);
+                level.getBlockState(shifted).handleNeighborChanged(level, shifted, oldState.getBlock(), blockPos, false);
             }
         }
         if (newState.hasAnalogOutputSignal()) {

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R4/PaperweightGetBlocks.java

@@ -1,4 +1,4 @@
-package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4;
 
 import com.fastasyncworldedit.bukkit.adapter.BukkitGetBlocks;
 import com.fastasyncworldedit.bukkit.adapter.DelegateSemaphore;
@@ -20,7 +20,7 @@ import com.sk89q.jnbt.StringTag;
 import com.sk89q.jnbt.Tag;
 import com.sk89q.worldedit.bukkit.BukkitAdapter;
 import com.sk89q.worldedit.bukkit.WorldEditPlugin;
-import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2.nbt.PaperweightLazyCompoundTag;
+import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4.nbt.PaperweightLazyCompoundTag;
 import com.sk89q.worldedit.internal.Constants;
 import com.sk89q.worldedit.internal.util.LogManagerCompat;
 import com.sk89q.worldedit.math.BlockVector3;
@@ -29,12 +29,9 @@ import com.sk89q.worldedit.world.biome.BiomeTypes;
 import com.sk89q.worldedit.world.block.BlockTypesCache;
 import io.papermc.lib.PaperLib;
 import io.papermc.paper.event.block.BeaconDeactivatedEvent;
-import net.minecraft.core.BlockPos;
+import net.minecraft.core.*;
-import net.minecraft.core.Holder;
-import net.minecraft.core.IdMap;
-import net.minecraft.core.Registry;
-import net.minecraft.core.SectionPos;
 import net.minecraft.nbt.IntTag;
+import net.minecraft.server.dedicated.DedicatedServer;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.sounds.SoundEvents;
 import net.minecraft.util.BitStorage;
@@ -46,33 +43,17 @@ import net.minecraft.world.level.biome.Biome;
 import net.minecraft.world.level.block.entity.BeaconBlockEntity;
 import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.world.level.chunk.DataLayer;
+import net.minecraft.world.level.chunk.*;
-import net.minecraft.world.level.chunk.HashMapPalette;
-import net.minecraft.world.level.chunk.LevelChunk;
-import net.minecraft.world.level.chunk.LevelChunkSection;
-import net.minecraft.world.level.chunk.LinearPalette;
-import net.minecraft.world.level.chunk.Palette;
-import net.minecraft.world.level.chunk.PalettedContainer;
 import net.minecraft.world.level.levelgen.Heightmap;
 import net.minecraft.world.level.lighting.LevelLightEngine;
 import org.apache.logging.log4j.Logger;
 import org.bukkit.World;
-import org.bukkit.craftbukkit.v1_18_R2.CraftWorld;
+import org.bukkit.craftbukkit.CraftWorld;
-import org.bukkit.craftbukkit.v1_18_R2.block.CraftBlock;
+import org.bukkit.craftbukkit.block.CraftBlock;
 import org.bukkit.event.entity.CreatureSpawnEvent;
 
 import javax.annotation.Nonnull;
-import java.util.AbstractSet;
+import java.util.*;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.UUID;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.Future;
@@ -83,13 +64,16 @@ import java.util.concurrent.locks.ReentrantReadWriteLock;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 
+import static net.minecraft.core.registries.Registries.BIOME;
+
 public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBlocks {
 
     private static final Logger LOGGER = LogManagerCompat.getLogger();
 
     private static final Function<BlockPos, BlockVector3> posNms2We = v -> BlockVector3.at(v.getX(), v.getY(), v.getZ());
-    private static final Function<BlockEntity, CompoundTag> nmsTile2We =
+    private static final Function<BlockEntity, CompoundTag> nmsTile2We = tileEntity -> new PaperweightLazyCompoundTag(
-            tileEntity -> new PaperweightLazyCompoundTag(Suppliers.memoize(tileEntity::saveWithId));
+            Suppliers.memoize(() -> tileEntity.saveWithId(DedicatedServer.getServer().registryAccess()))
+    );
     private final PaperweightFaweAdapter adapter = ((PaperweightFaweAdapter) WorldEditPlugin
             .getInstance()
             .getBukkitImplAdapter());
@@ -130,7 +114,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
         this.maxSectionPosition = maxHeight >> 4;
         this.skyLight = new DataLayer[getSectionCount()];
         this.blockLight = new DataLayer[getSectionCount()];
-        this.biomeRegistry = serverLevel.registryAccess().registryOrThrow(Registry.BIOME_REGISTRY);
+        this.biomeRegistry = serverLevel.registryAccess().registryOrThrow(BIOME);
         this.biomeHolderIdMap = biomeRegistry.asHolderIdMap();
     }
 
@@ -260,7 +244,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
         if (blockEntity == null) {
             return null;
         }
-        return new PaperweightLazyCompoundTag(Suppliers.memoize(blockEntity::saveWithId));
+        return new PaperweightLazyCompoundTag(Suppliers.memoize(() -> blockEntity.saveWithId(DedicatedServer.getServer().registryAccess())));
     }
 
     @Override
@@ -289,8 +273,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
                 ((LevelLightEngine) serverLevel.getChunkSource().getLightEngine()).queueSectionData(
                         LightLayer.BLOCK,
                         sectionPos,
-                        dataLayer,
+                        dataLayer
-                        true
                 );
             }
             skyLight[alayer] = dataLayer;
@@ -317,7 +300,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
                 Arrays.fill(LAYER_COUNT, (byte) 15);
                 dataLayer = new DataLayer(LAYER_COUNT);
                 ((LevelLightEngine) serverLevel.getChunkSource().getLightEngine()).queueSectionData(LightLayer.BLOCK, sectionPos,
-                        dataLayer, true
+                        dataLayer
                 );
             }
             blockLight[alayer] = dataLayer;
@@ -334,7 +317,15 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
 
     @Override
     public CompoundTag getEntity(UUID uuid) {
-        Entity entity = serverLevel.getEntity(uuid);
+        ensureLoaded(serverLevel, chunkX, chunkZ);
+        List<Entity> entities = PaperweightPlatformAdapter.getEntities(getChunk());
+        Entity entity = null;
+        for (Entity e : entities) {
+            if (e.getUUID().equals(uuid)) {
+                entity = e;
+                break;
+            }
+        }
         if (entity != null) {
             org.bukkit.entity.Entity bukkitEnt = entity.getBukkitEntity();
             return BukkitAdapter.adapt(bukkitEnt).getState().getNbtData();
@@ -349,6 +340,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
 
     @Override
     public Set<CompoundTag> getEntities() {
+        ensureLoaded(serverLevel, chunkX, chunkZ);
         List<Entity> entities = PaperweightPlatformAdapter.getEntities(getChunk());
         if (entities.isEmpty()) {
             return Collections.emptySet();
@@ -385,7 +377,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
             public Iterator<CompoundTag> iterator() {
                 Iterable<CompoundTag> result = entities.stream().map(input -> {
                     net.minecraft.nbt.CompoundTag tag = new net.minecraft.nbt.CompoundTag();
-                    PaperweightPlatformAdapter.readEntityIntoTag(input, tag);
+                    input.save(tag);
                     return (CompoundTag) adapter.toNative(tag);
                 }).collect(Collectors.toList());
                 return result.iterator();
@@ -474,7 +466,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
                             synchronized (super.sectionLocks[getSectionIndex]) {
                                 LevelChunkSection existingSection = levelChunkSections[getSectionIndex];
                                 if (createCopy && existingSection != null) {
-                                    copy.storeBiomes(getSectionIndex, existingSection.getBiomes().copy());
+                                    copy.storeBiomes(getSectionIndex, existingSection.getBiomes());
                                 }
 
                                 if (existingSection == null) {
@@ -507,8 +499,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
                                         }
                                     }
                                 } else {
-                                    PalettedContainer<Holder<Biome>> biomeData = existingSection.getBiomes();
+                                    setBiomesToPalettedContainer(biomes, setSectionIndex, existingSection.getBiomes());
-                                    setBiomesToPalettedContainer(biomes[setSectionIndex], biomeData);
                                 }
                             }
                         }
@@ -543,7 +534,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
                             System.arraycopy(tmpLoad, 0, copyArr, 0, 4096);
                             copy.storeSection(getSectionIndex, copyArr);
                             if (biomes != null && existingSection != null) {
-                                copy.storeBiomes(getSectionIndex, existingSection.getBiomes().copy());
+                                copy.storeBiomes(getSectionIndex, existingSection.getBiomes());
                             }
                         }
 
@@ -555,8 +546,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
                                             .getBukkitImplAdapter()
                                             .getInternalBiomeId(
                                                     BiomeTypes.PLAINS)),
-                                    PalettedContainer.Strategy.SECTION_BIOMES,
+                                    PalettedContainer.Strategy.SECTION_BIOMES
-                                    null
                             ) : PaperweightPlatformAdapter.getBiomePalettedContainer(biomes[setSectionIndex], biomeHolderIdMap);
                             newSection = PaperweightPlatformAdapter.newChunkSection(
                                     layerNo,
@@ -616,11 +606,11 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
                                 sectionLock.writeLock().unlock();
                             }
 
-                            PalettedContainer<Holder<Biome>> biomeData = existingSection.getBiomes();
+                            PalettedContainer<Holder<Biome>> biomeData = setBiomesToPalettedContainer(
-
+                                    biomes,
-                            if (biomes != null && biomes[setSectionIndex] != null) {
+                                    setSectionIndex,
-                                setBiomesToPalettedContainer(biomes[setSectionIndex], biomeData);
+                                    existingSection.getBiomes()
-                            }
+                            );
 
                             newSection =
                                     PaperweightPlatformAdapter.newChunkSection(
@@ -705,7 +695,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
                         }
                         if (Settings.settings().EXPERIMENTAL.REMOVE_ENTITY_FROM_WORLD_ON_CHUNK_FAIL) {
                             for (UUID uuid : entityRemoves) {
-                                Entity entity = nmsWorld.entityManager.getEntityGetter().get(uuid);
+                                Entity entity = nmsWorld.getEntities().get(uuid);
                                 if (entity != null) {
                                     removeEntity(entity);
                                 }
@@ -800,7 +790,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
                                     tag.put("x", IntTag.valueOf(x));
                                     tag.put("y", IntTag.valueOf(y));
                                     tag.put("z", IntTag.valueOf(z));
-                                    tileEntity.load(tag);
+                                    tileEntity.loadWithComponents(tag, DedicatedServer.getServer().registryAccess());
                                 }
                             }
                         }
@@ -1076,8 +1066,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
                 ((LevelLightEngine) serverLevel.getChunkSource().getLightEngine()).queueSectionData(
                         lightLayer,
                         sectionPos,
-                        dataLayer,
+                        dataLayer
-                        true
                 );
             }
             synchronized (dataLayer) {
@@ -1095,22 +1084,35 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
         }
     }
 
-    private void setBiomesToPalettedContainer(
+    private PalettedContainer<Holder<Biome>> setBiomesToPalettedContainer(
-            final BiomeType[] biomes,
+            final BiomeType[][] biomes,
-            PalettedContainer<Holder<Biome>> data
+            final int sectionIndex,
+            final PalettedContainerRO<Holder<Biome>> data
     ) {
-        int index = 0;
+        PalettedContainer<Holder<Biome>> biomeData;
-        if (biomes == null) {
+        if (data instanceof PalettedContainer<Holder<Biome>> palettedContainer) {
-            return;
+            biomeData = palettedContainer;
+        } else {
+            LOGGER.warn(
+                    "Cannot correctly set biomes to world, existing biomes may be lost. Expected class " +
+                            "type {} but got {}",
+                    PalettedContainer.class.getSimpleName(),
+                    data.getClass().getSimpleName()
+            );
+            biomeData = data.recreate();
         }
-        for (int y = 0; y < 4; y++) {
+        BiomeType[] sectionBiomes;
+        if (biomes == null || (sectionBiomes = biomes[sectionIndex]) == null) {
+            return biomeData;
+        }
+        for (int y = 0, index = 0; y < 4; y++) {
             for (int z = 0; z < 4; z++) {
                 for (int x = 0; x < 4; x++, index++) {
-                    BiomeType biomeType = biomes[index];
+                    BiomeType biomeType = sectionBiomes[index];
                     if (biomeType == null) {
                         continue;
                     }
-                    data.set(
+                    biomeData.set(
                             x,
                             y,
                             z,
@@ -1122,6 +1124,7 @@ public class PaperweightGetBlocks extends CharGetBlocks implements BukkitGetBloc
                 }
             }
         }
+        return biomeData;
     }
 
     @Override

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R4/PaperweightGetBlocks_Copy.java

@@ -1,4 +1,4 @@
-package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4;
 
 import com.fastasyncworldedit.core.extent.processor.heightmap.HeightMapType;
 import com.fastasyncworldedit.core.queue.IBlocks;
@@ -8,19 +8,23 @@ import com.google.common.base.Suppliers;
 import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.worldedit.bukkit.WorldEditPlugin;
 import com.sk89q.worldedit.bukkit.adapter.BukkitImplAdapter;
-import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2.nbt.PaperweightLazyCompoundTag;
+import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4.nbt.PaperweightLazyCompoundTag;
+import com.sk89q.worldedit.internal.util.LogManagerCompat;
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockTypesCache;
 import net.minecraft.core.Holder;
+import net.minecraft.server.dedicated.DedicatedServer;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.entity.Entity;
 import net.minecraft.world.level.biome.Biome;
 import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.chunk.LevelChunk;
 import net.minecraft.world.level.chunk.PalettedContainer;
+import net.minecraft.world.level.chunk.PalettedContainerRO;
+import org.apache.logging.log4j.Logger;
 
 import javax.annotation.Nullable;
 import java.util.Arrays;
@@ -33,6 +37,8 @@ import java.util.concurrent.Future;
 
 public class PaperweightGetBlocks_Copy implements IChunkGet {
 
+    private static final Logger LOGGER = LogManagerCompat.getLogger();
+
     private final Map<BlockVector3, CompoundTag> tiles = new HashMap<>();
     private final Set<CompoundTag> entities = new HashSet<>();
     private final char[][] blocks;
@@ -57,7 +63,7 @@ public class PaperweightGetBlocks_Copy implements IChunkGet {
                         blockEntity.getBlockPos().getY(),
                         blockEntity.getBlockPos().getZ()
                 ),
-                new PaperweightLazyCompoundTag(Suppliers.memoize(blockEntity::saveWithId))
+                new PaperweightLazyCompoundTag(Suppliers.memoize(() -> blockEntity.saveWithId(DedicatedServer.getServer().registryAccess())))
         );
     }
 
@@ -76,7 +82,7 @@ public class PaperweightGetBlocks_Copy implements IChunkGet {
     protected void storeEntity(Entity entity) {
         BukkitImplAdapter adapter = WorldEditPlugin.getInstance().getBukkitImplAdapter();
         net.minecraft.nbt.CompoundTag compoundTag = new net.minecraft.nbt.CompoundTag();
-        PaperweightPlatformAdapter.readEntityIntoTag(entity, compoundTag);
+        entity.save(compoundTag);
         entities.add((CompoundTag) adapter.toNative(compoundTag));
     }
 
@@ -166,11 +172,19 @@ public class PaperweightGetBlocks_Copy implements IChunkGet {
         blocks[layer] = data;
     }
 
-    protected void storeBiomes(int layer, PalettedContainer<Holder<Biome>> biomeData) {
+    protected void storeBiomes(int layer, PalettedContainerRO<Holder<Biome>> biomeData) {
         if (biomes == null) {
             biomes = new PalettedContainer[getSectionCount()];
         }
-        biomes[layer] = biomeData;
+        if (biomeData instanceof PalettedContainer<Holder<Biome>> palettedContainer) {
+            biomes[layer] = palettedContainer.copy();
+        } else {
+            LOGGER.error(
+                    "Cannot correctly save biomes to history. Expected class type {} but got {}",
+                    PalettedContainer.class.getSimpleName(),
+                    biomeData.getClass().getSimpleName()
+            );
+        }
     }
 
     @Override

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R4/PaperweightMapChunkUtil.java

@@ -1,4 +1,4 @@
-package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4;
 
 import com.fastasyncworldedit.bukkit.adapter.MapChunkUtil;
 import com.sk89q.worldedit.bukkit.adapter.Refraction;
@@ -10,10 +10,10 @@ public class PaperweightMapChunkUtil extends MapChunkUtil<ClientboundLevelChunkW
 
     public PaperweightMapChunkUtil() throws NoSuchFieldException {
         fieldX = ClientboundLevelChunkPacketData.class.getDeclaredField(Refraction.pickName("TWO_MEGABYTES", "a"));
-        fieldZ = ClientboundLevelChunkWithLightPacket.class.getDeclaredField(Refraction.pickName("x", "a"));
+        fieldZ = ClientboundLevelChunkWithLightPacket.class.getDeclaredField(Refraction.pickName("x", "b"));
-        fieldBitMask = ClientboundLevelChunkWithLightPacket.class.getDeclaredField(Refraction.pickName("z", "b"));
+        fieldBitMask = ClientboundLevelChunkWithLightPacket.class.getDeclaredField(Refraction.pickName("z", "c"));
         fieldHeightMap = ClientboundLevelChunkPacketData.class.getDeclaredField(Refraction.pickName("heightmaps", "b"));
-        fieldChunkData = ClientboundLevelChunkWithLightPacket.class.getDeclaredField(Refraction.pickName("chunkData", "c"));
+        fieldChunkData = ClientboundLevelChunkWithLightPacket.class.getDeclaredField(Refraction.pickName("chunkData", "d"));
         fieldBlockEntities = ClientboundLevelChunkPacketData.class.getDeclaredField(Refraction.pickName("buffer", "c"));
         fieldFull = ClientboundLevelChunkPacketData.class.getDeclaredField(Refraction.pickName("blockEntitiesData", "d"));
         fieldX.setAccessible(true);

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R4/PaperweightPlatformAdapter.java

@@ -1,5 +1,6 @@
-package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4;
 
+import com.destroystokyo.paper.util.maplist.EntityList;
 import com.fastasyncworldedit.bukkit.adapter.CachedBukkitAdapter;
 import com.fastasyncworldedit.bukkit.adapter.DelegateSemaphore;
 import com.fastasyncworldedit.bukkit.adapter.NMSAdapter;
@@ -19,6 +20,7 @@ import com.sk89q.worldedit.world.biome.BiomeTypes;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockTypesCache;
 import io.papermc.lib.PaperLib;
+import io.papermc.paper.world.ChunkEntitySlices;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Holder;
 import net.minecraft.core.IdMap;
@@ -30,19 +32,19 @@ import net.minecraft.server.level.ServerLevel;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.server.level.TicketType;
 import net.minecraft.util.BitStorage;
+import net.minecraft.util.ExceptionCollector;
 import net.minecraft.util.SimpleBitStorage;
 import net.minecraft.util.ThreadingDetector;
 import net.minecraft.util.Unit;
 import net.minecraft.util.ZeroBitStorage;
 import net.minecraft.world.entity.Entity;
-import net.minecraft.world.entity.npc.AbstractVillager;
-import net.minecraft.world.item.trading.MerchantOffers;
 import net.minecraft.world.level.ChunkPos;
 import net.minecraft.world.level.LevelAccessor;
 import net.minecraft.world.level.biome.Biome;
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.Blocks;
 import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.level.chunk.ChunkAccess;
 import net.minecraft.world.level.chunk.GlobalPalette;
 import net.minecraft.world.level.chunk.HashMapPalette;
 import net.minecraft.world.level.chunk.LevelChunk;
@@ -51,15 +53,17 @@ import net.minecraft.world.level.chunk.LinearPalette;
 import net.minecraft.world.level.chunk.Palette;
 import net.minecraft.world.level.chunk.PalettedContainer;
 import net.minecraft.world.level.chunk.SingleValuePalette;
+import net.minecraft.world.level.chunk.status.ChunkStatus;
+import net.minecraft.world.level.entity.PersistentEntitySectionManager;
 import org.apache.logging.log4j.Logger;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_18_R2.CraftChunk;
+import org.bukkit.craftbukkit.CraftChunk;
-import sun.misc.Unsafe;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import java.lang.invoke.MethodHandle;
 import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
@@ -79,6 +83,9 @@ import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 import java.util.function.Function;
 
+import static java.lang.invoke.MethodType.methodType;
+import static net.minecraft.core.registries.Registries.BIOME;
+
 public final class PaperweightPlatformAdapter extends NMSAdapter {
 
     public static final Field fieldData;
@@ -100,14 +107,23 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
     private static final MethodHandle methodRemoveGameEventListener;
     private static final MethodHandle methodremoveTickingBlockEntity;
 
-    private static final Field fieldOffers;
+    /*
-    private static final MerchantOffers OFFERS = new MerchantOffers();
+     * This is a workaround for the changes from https://hub.spigotmc.org/stash/projects/SPIGOT/repos/craftbukkit/commits/1fddefce1cdce44010927b888432bf70c0e88cde#src/main/java/org/bukkit/craftbukkit/CraftChunk.java
+     * and is only needed to support 1.19.4 versions before *and* after this change.
+     */
+    private static final MethodHandle CRAFT_CHUNK_GET_HANDLE;
 
     private static final Field fieldRemove;
 
     private static final Logger LOGGER = LogManagerCompat.getLogger();
 
+    static final boolean POST_CHUNK_REWRITE;
+    private static Method PAPER_CHUNK_GEN_ALL_ENTITIES;
+    private static Field LEVEL_CHUNK_ENTITIES;
+    private static Field SERVER_LEVEL_ENTITY_MANAGER;
+
     static {
+        final MethodHandles.Lookup lookup = MethodHandles.lookup();
         try {
             fieldData = PalettedContainer.class.getDeclaredField(Refraction.pickName("data", "d"));
             fieldData.setAccessible(true);
@@ -121,11 +137,11 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
             fieldPalette = dataClazz.getDeclaredField(Refraction.pickName("palette", "c"));
             fieldPalette.setAccessible(true);
 
-            fieldTickingFluidCount = LevelChunkSection.class.getDeclaredField(Refraction.pickName("tickingFluidCount", "h"));
+            fieldTickingFluidCount = LevelChunkSection.class.getDeclaredField(Refraction.pickName("tickingFluidCount", "g"));
             fieldTickingFluidCount.setAccessible(true);
-            fieldTickingBlockCount = LevelChunkSection.class.getDeclaredField(Refraction.pickName("tickingBlockCount", "g"));
+            fieldTickingBlockCount = LevelChunkSection.class.getDeclaredField(Refraction.pickName("tickingBlockCount", "f"));
             fieldTickingBlockCount.setAccessible(true);
-            fieldNonEmptyBlockCount = LevelChunkSection.class.getDeclaredField(Refraction.pickName("nonEmptyBlockCount", "f"));
+            fieldNonEmptyBlockCount = LevelChunkSection.class.getDeclaredField(Refraction.pickName("nonEmptyBlockCount", "e"));
             fieldNonEmptyBlockCount.setAccessible(true);
 
             Method getVisibleChunkIfPresent = ChunkMap.class.getDeclaredMethod(Refraction.pickName(
@@ -133,7 +149,7 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
                     "b"
             ), long.class);
             getVisibleChunkIfPresent.setAccessible(true);
-            methodGetVisibleChunk = MethodHandles.lookup().unreflect(getVisibleChunkIfPresent);
+            methodGetVisibleChunk = lookup.unreflect(getVisibleChunkIfPresent);
 
             if (!PaperLib.isPaper()) {
                 fieldThreadingDetector = PalettedContainer.class.getDeclaredField(Refraction.pickName("threadingDetector", "f"));
@@ -147,31 +163,66 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
             }
 
             Method removeGameEventListener = LevelChunk.class.getDeclaredMethod(
-                    Refraction.pickName("removeGameEventListener", "d"),
+                    Refraction.pickName("removeGameEventListener", "a"),
-                    BlockEntity.class
+                    BlockEntity.class,
+                    ServerLevel.class
             );
             removeGameEventListener.setAccessible(true);
-            methodRemoveGameEventListener = MethodHandles.lookup().unreflect(removeGameEventListener);
+            methodRemoveGameEventListener = lookup.unreflect(removeGameEventListener);
+
             Method removeBlockEntityTicker = LevelChunk.class.getDeclaredMethod(
                     Refraction.pickName(
                             "removeBlockEntityTicker",
-                            "l"
+                            "k"
                     ), BlockPos.class
             );
             removeBlockEntityTicker.setAccessible(true);
-            methodremoveTickingBlockEntity = MethodHandles.lookup().unreflect(removeBlockEntityTicker);
+            methodremoveTickingBlockEntity = lookup.unreflect(removeBlockEntityTicker);
 
             fieldRemove = BlockEntity.class.getDeclaredField(Refraction.pickName("remove", "p"));
             fieldRemove.setAccessible(true);
 
-            fieldOffers = AbstractVillager.class.getDeclaredField(Refraction.pickName("offers", "bW"));
+            boolean chunkRewrite;
-            fieldOffers.setAccessible(true);
+            try {
-        } catch (RuntimeException e) {
+                ServerLevel.class.getDeclaredMethod("getEntityLookup");
+                chunkRewrite = true;
+                PAPER_CHUNK_GEN_ALL_ENTITIES = ChunkEntitySlices.class.getDeclaredMethod("getAllEntities");
+                PAPER_CHUNK_GEN_ALL_ENTITIES.setAccessible(true);
+            } catch (NoSuchMethodException ignored) {
+                chunkRewrite = false;
+            }
+            try {
+                // Paper - Pre-Chunk-Update
+                LEVEL_CHUNK_ENTITIES = LevelChunk.class.getDeclaredField("entities");
+                LEVEL_CHUNK_ENTITIES.setAccessible(true);
+            } catch (NoSuchFieldException ignored) {
+            }
+            try {
+                // Non-Paper
+                SERVER_LEVEL_ENTITY_MANAGER = ServerLevel.class.getDeclaredField(Refraction.pickName("entityManager", "N"));
+                SERVER_LEVEL_ENTITY_MANAGER.setAccessible(true);
+            } catch (NoSuchFieldException ignored) {
+            }
+            POST_CHUNK_REWRITE = chunkRewrite;
+        } catch (RuntimeException | Error e) {
             throw e;
-        } catch (Throwable rethrow) {
+        } catch (Exception e) {
-            rethrow.printStackTrace();
+            throw new RuntimeException(e);
-            throw new RuntimeException(rethrow);
         }
+        MethodHandle craftChunkGetHandle;
+        final MethodType type = methodType(LevelChunk.class);
+        try {
+            craftChunkGetHandle = lookup.findVirtual(CraftChunk.class, "getHandle", type);
+        } catch (NoSuchMethodException | IllegalAccessException e) {
+            try {
+                final MethodType newType = methodType(ChunkAccess.class, ChunkStatus.class);
+                craftChunkGetHandle = lookup.findVirtual(CraftChunk.class, "getHandle", newType);
+                craftChunkGetHandle = MethodHandles.insertArguments(craftChunkGetHandle, 1, ChunkStatus.FULL);
+            } catch (NoSuchMethodException | IllegalAccessException ex) {
+                throw new RuntimeException(ex);
+            }
+        }
+        CRAFT_CHUNK_GET_HANDLE = craftChunkGetHandle;
     }
 
     static boolean setSectionAtomic(
@@ -255,7 +306,8 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
                         throw new UnsupportedOperationException("Cannot load chunk from unloaded world " + world + "!");
                     }
                 }
-                return chunk.getHandle();
+                addTicket(serverLevel, chunkX, chunkZ);
+                return (LevelChunk) CRAFT_CHUNK_GET_HANDLE.invoke(chunk);
             } catch (Throwable e) {
                 e.printStackTrace();
             }
@@ -265,9 +317,9 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
 
     private static void addTicket(ServerLevel serverLevel, int chunkX, int chunkZ) {
         // Ensure chunk is definitely loaded before applying a ticket
-        net.minecraft.server.MCUtil.MAIN_EXECUTOR.execute(() -> serverLevel
+        io.papermc.paper.util.MCUtil.MAIN_EXECUTOR.execute(() -> serverLevel
                 .getChunkSource()
-                .addRegionTicket(TicketType.PLUGIN, new ChunkPos(chunkX, chunkZ), 0, Unit.INSTANCE));
+                .addRegionTicket(TicketType.UNLOAD_COOLDOWN, new ChunkPos(chunkX, chunkZ), 0, Unit.INSTANCE));
     }
 
     public static ChunkHolder getPlayerChunk(ServerLevel nmsWorld, final int chunkX, final int chunkZ) {
@@ -286,20 +338,21 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
             return;
         }
         ChunkPos coordIntPair = new ChunkPos(chunkX, chunkZ);
-        // UNLOADED_CHUNK
+        LevelChunk levelChunk;
-        Optional<LevelChunk> optional = ((Either) chunkHolder
-                .getTickingChunkFuture()
-                .getNow(ChunkHolder.UNLOADED_LEVEL_CHUNK)).left();
         if (PaperLib.isPaper()) {
             // getChunkAtIfLoadedImmediately is paper only
-            optional = optional.or(() -> Optional.ofNullable(nmsWorld
+            levelChunk = nmsWorld
                     .getChunkSource()
-                    .getChunkAtIfLoadedImmediately(chunkX, chunkZ)));
+                    .getChunkAtIfLoadedImmediately(chunkX, chunkZ);
+        } else {
+            levelChunk = ((Optional<LevelChunk>) ((Either) chunkHolder
+                    .getTickingChunkFuture() // method is not present with new paper chunk system
+                    .getNow(ChunkHolder.UNLOADED_LEVEL_CHUNK)).left())
+                    .orElse(null);
         }
-        if (optional.isEmpty()) {
+        if (levelChunk == null) {
             return;
         }
-        LevelChunk levelChunk = optional.get();
         TaskManager.taskManager().task(() -> {
             ClientboundLevelChunkWithLightPacket packet;
             if (PaperLib.isPaper()) {
@@ -307,9 +360,8 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
                         levelChunk,
                         nmsWorld.getChunkSource().getLightEngine(),
                         null,
-                        null,
+                        null
-                        true,
+                        // last false is to not bother with x-ray
-                        false // last false is to not bother with x-ray
                 );
             } else {
                 // deprecated on paper - deprecation suppressed
@@ -317,8 +369,7 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
                         levelChunk,
                         nmsWorld.getChunkSource().getLightEngine(),
                         null,
-                        null,
+                        null
-                        true
                 );
             }
             nearbyPlayers(nmsWorld, coordIntPair).forEach(p -> p.connection.send(packet));
@@ -424,12 +475,11 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
                                 .getBukkitImplAdapter()
                                 .getInternalBiomeId(
                                         BiomeTypes.PLAINS)),
-                        PalettedContainer.Strategy.SECTION_BIOMES,
+                        PalettedContainer.Strategy.SECTION_BIOMES
-                        null
                 );
             }
 
-            return new LevelChunkSection(layer, blockStatePalettedContainer, biomes);
+            return new LevelChunkSection(blockStatePalettedContainer, biomes);
         } catch (final Throwable e) {
             throw e;
         } finally {
@@ -447,15 +497,14 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
             @Nullable PalettedContainer<Holder<Biome>> biomes
     ) {
         if (biomes == null) {
-            return new LevelChunkSection(layer, biomeRegistry);
+            return new LevelChunkSection(biomeRegistry);
         }
         PalettedContainer<net.minecraft.world.level.block.state.BlockState> dataPaletteBlocks = new PalettedContainer<>(
                 Block.BLOCK_STATE_REGISTRY,
                 Blocks.AIR.defaultBlockState(),
-                PalettedContainer.Strategy.SECTION_STATES,
+                PalettedContainer.Strategy.SECTION_STATES
-                null
         );
-        return new LevelChunkSection(layer, dataPaletteBlocks, biomes);
+        return new LevelChunkSection(dataPaletteBlocks, biomes);
     }
 
     /**
@@ -492,8 +541,7 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
         PalettedContainer<Holder<Biome>> biomePalettedContainer = new PalettedContainer<>(
                 biomeRegistry,
                 biomeRegistry.byIdOrThrow(adapter.getInternalBiomeId(BiomeTypes.PLAINS)),
-                PalettedContainer.Strategy.SECTION_BIOMES,
+                PalettedContainer.Strategy.SECTION_BIOMES
-                null
         );
 
         final Palette<Holder<Biome>> biomePalette;
@@ -571,7 +619,7 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
     }
 
     public static BiomeType adapt(Holder<Biome> biome, LevelAccessor levelAccessor) {
-        final Registry<Biome> biomeRegistry = levelAccessor.registryAccess().ownedRegistryOrThrow(Registry.BIOME_REGISTRY);
+        final Registry<Biome> biomeRegistry = levelAccessor.registryAccess().registryOrThrow(BIOME);
         if (biomeRegistry.getKey(biome.value()) == null) {
             return biomeRegistry.asHolderIdMap().getId(biome) == -1 ? BiomeTypes.OCEAN
                     : null;
@@ -581,13 +629,11 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
 
     static void removeBeacon(BlockEntity beacon, LevelChunk levelChunk) {
         try {
-            // Do the method ourselves to avoid trying to reflect generic method parameters
-            // similar to removeGameEventListener
             if (levelChunk.loaded || levelChunk.level.isClientSide()) {
                 BlockEntity blockEntity = levelChunk.blockEntities.remove(beacon.getBlockPos());
                 if (blockEntity != null) {
                     if (!levelChunk.level.isClientSide) {
-                        methodRemoveGameEventListener.invoke(levelChunk, beacon);
+                        methodRemoveGameEventListener.invoke(levelChunk, beacon, levelChunk.level);
                     }
                     fieldRemove.set(beacon, true);
                 }
@@ -599,30 +645,32 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
     }
 
     static List<Entity> getEntities(LevelChunk chunk) {
-        return chunk.level.entityManager.getEntities(chunk.getPos());
+        ExceptionCollector<RuntimeException> collector = new ExceptionCollector<>();
-    }
+        if (PaperLib.isPaper()) {
-
+            if (POST_CHUNK_REWRITE) {
-    public static void readEntityIntoTag(Entity entity, net.minecraft.nbt.CompoundTag compoundTag) {
+                try {
-        boolean isVillager = entity instanceof AbstractVillager && !Fawe.isMainThread();
+                    //noinspection unchecked
-        boolean unset = false;
+                    return (List<Entity>) PAPER_CHUNK_GEN_ALL_ENTITIES.invoke(chunk.level.getEntityLookup().getChunk(chunk.locX, chunk.locZ));
-        if (isVillager) {
+                } catch (IllegalAccessException | InvocationTargetException e) {
-            try {
+                    throw new RuntimeException("Failed to lookup entities [POST_CHUNK_REWRITE=true]", e);
-                if (fieldOffers.get(entity) != null) {
-                    fieldOffers.set(entity, OFFERS);
-                    unset = true;
                 }
-            } catch (IllegalAccessException e) {
-                throw new RuntimeException("Failed to set offers field to villager to avoid async catcher.", e);
             }
-        }
-        entity.save(compoundTag);
-        if (unset) {
             try {
-                fieldOffers.set(entity, null);
+                EntityList entityList = (EntityList) LEVEL_CHUNK_ENTITIES.get(chunk);
+                return List.of(entityList.getRawData());
             } catch (IllegalAccessException e) {
-                throw new RuntimeException("Failed to set offers field to null again on villager.", e);
+                collector.add(new RuntimeException("Failed to lookup entities [POST_CHUNK_REWRITE=false]", e));
+                // fall through
             }
         }
+        try {
+            //noinspection unchecked
+            return ((PersistentEntitySectionManager<Entity>) (SERVER_LEVEL_ENTITY_MANAGER.get(chunk.level))).getEntities(chunk.getPos());
+        } catch (IllegalAccessException e) {
+            collector.add(new RuntimeException("Failed to lookup entities [PAPER=false]", e));
+        }
+        collector.throwIfPresent();
+        return List.of();
     }
 
     record FakeIdMapBlock(int size) implements IdMap<net.minecraft.world.level.block.state.BlockState> {

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R4/PaperweightPostProcessor.java

@@ -1,4 +1,4 @@
-package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4;
 
 import com.fastasyncworldedit.core.configuration.Settings;
 import com.fastasyncworldedit.core.extent.processor.ProcessorScope;

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R4/PaperweightStarlightRelighter.java

@@ -1,14 +1,14 @@
-package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4;
 
 import com.fastasyncworldedit.bukkit.adapter.StarlightRelighter;
 import com.fastasyncworldedit.core.configuration.Settings;
 import com.fastasyncworldedit.core.queue.IQueueExtent;
-import net.minecraft.server.MCUtil;
+import net.minecraft.server.level.ChunkMap;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.server.level.TicketType;
 import net.minecraft.util.Unit;
 import net.minecraft.world.level.ChunkPos;
-import net.minecraft.world.level.chunk.ChunkStatus;
+import net.minecraft.world.level.chunk.status.ChunkStatus;
 
 import java.util.Set;
 import java.util.concurrent.CompletableFuture;
@@ -18,7 +18,7 @@ import java.util.function.IntConsumer;
 public class PaperweightStarlightRelighter extends StarlightRelighter<ServerLevel, ChunkPos> {
 
     private static final TicketType<Unit> FAWE_TICKET = TicketType.create("fawe_ticket", (a, b) -> 0);
-    private static final int LIGHT_LEVEL = MCUtil.getTicketLevelFor(ChunkStatus.LIGHT);
+    private static final int LIGHT_LEVEL = ChunkMap.MAX_VIEW_DISTANCE + ChunkStatus.getDistance(ChunkStatus.LIGHT);
 
     public PaperweightStarlightRelighter(ServerLevel serverLevel, IQueueExtent<?> queue) {
         super(serverLevel, queue);

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R4/PaperweightStarlightRelighterFactory.java

@@ -1,4 +1,4 @@
-package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2;
+package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4;
 
 import com.fastasyncworldedit.core.extent.processor.lighting.NullRelighter;
 import com.fastasyncworldedit.core.extent.processor.lighting.RelightMode;
@@ -7,7 +7,7 @@ import com.fastasyncworldedit.core.extent.processor.lighting.RelighterFactory;
 import com.fastasyncworldedit.core.queue.IQueueExtent;
 import com.sk89q.worldedit.world.World;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_18_R2.CraftWorld;
+import org.bukkit.craftbukkit.CraftWorld;
 
 import javax.annotation.Nonnull;
 

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R4/nbt/PaperweightLazyCompoundTag.java

@@ -1,4 +1,4 @@
-package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2.nbt;
+package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4.nbt;
 
 import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.jnbt.LazyCompoundTag;

worldedit-bukkit/adapters/adapter-1_20_5/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_20_R4/regen/PaperweightRegen.java

@@ -1,17 +1,15 @@
-package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2.regen;
+package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4.regen;
 
 import com.fastasyncworldedit.bukkit.adapter.Regenerator;
 import com.fastasyncworldedit.core.Fawe;
 import com.fastasyncworldedit.core.queue.IChunkCache;
 import com.fastasyncworldedit.core.queue.IChunkGet;
-import com.fastasyncworldedit.core.util.ReflectionUtils;
 import com.fastasyncworldedit.core.util.TaskManager;
 import com.google.common.collect.ImmutableList;
-import com.mojang.datafixers.util.Either;
 import com.mojang.serialization.Lifecycle;
 import com.sk89q.worldedit.bukkit.WorldEditPlugin;
 import com.sk89q.worldedit.bukkit.adapter.Refraction;
-import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_18_R2.PaperweightGetBlocks;
+import com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_20_R4.PaperweightGetBlocks;
 import com.sk89q.worldedit.extent.Extent;
 import com.sk89q.worldedit.internal.util.LogManagerCompat;
 import com.sk89q.worldedit.regions.Region;
@@ -20,14 +18,19 @@ import com.sk89q.worldedit.world.RegenOptions;
 import it.unimi.dsi.fastutil.objects.Object2ObjectArrayMap;
 import net.minecraft.core.Holder;
 import net.minecraft.core.Registry;
-import net.minecraft.data.BuiltinRegistries;
+import net.minecraft.core.registries.Registries;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.resources.ResourceKey;
 import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.dedicated.DedicatedServer;
+import net.minecraft.server.level.ChunkMap;
+import net.minecraft.server.level.ChunkTaskPriorityQueueSorter.Message;
 import net.minecraft.server.level.ServerChunkCache;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.server.level.ThreadedLevelLightEngine;
 import net.minecraft.server.level.progress.ChunkProgressListener;
+import net.minecraft.util.thread.ProcessorHandle;
+import net.minecraft.util.thread.ProcessorMailbox;
 import net.minecraft.world.level.ChunkPos;
 import net.minecraft.world.level.Level;
 import net.minecraft.world.level.LevelHeightAccessor;
@@ -37,31 +40,34 @@ import net.minecraft.world.level.biome.BiomeSource;
 import net.minecraft.world.level.biome.FixedBiomeSource;
 import net.minecraft.world.level.chunk.ChunkAccess;
 import net.minecraft.world.level.chunk.ChunkGenerator;
-import net.minecraft.world.level.chunk.ChunkStatus;
+import net.minecraft.world.level.chunk.ChunkGeneratorStructureState;
 import net.minecraft.world.level.chunk.LevelChunk;
 import net.minecraft.world.level.chunk.ProtoChunk;
 import net.minecraft.world.level.chunk.UpgradeData;
+import net.minecraft.world.level.chunk.status.ChunkStatus;
+import net.minecraft.world.level.chunk.status.WorldGenContext;
 import net.minecraft.world.level.dimension.LevelStem;
 import net.minecraft.world.level.levelgen.FlatLevelSource;
 import net.minecraft.world.level.levelgen.NoiseBasedChunkGenerator;
 import net.minecraft.world.level.levelgen.NoiseGeneratorSettings;
-import net.minecraft.world.level.levelgen.WorldGenSettings;
+import net.minecraft.world.level.levelgen.WorldOptions;
 import net.minecraft.world.level.levelgen.blending.BlendingData;
 import net.minecraft.world.level.levelgen.flat.FlatLevelGeneratorSettings;
 import net.minecraft.world.level.levelgen.structure.placement.ConcentricRingsStructurePlacement;
-import net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager;
+import net.minecraft.world.level.levelgen.structure.templatesystem.StructureTemplateManager;
 import net.minecraft.world.level.storage.LevelStorageSource;
 import net.minecraft.world.level.storage.PrimaryLevelData;
 import org.apache.logging.log4j.Logger;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.v1_18_R2.CraftServer;
+import org.bukkit.Chunk;
-import org.bukkit.craftbukkit.v1_18_R2.CraftWorld;
+import org.bukkit.craftbukkit.CraftServer;
-import org.bukkit.craftbukkit.v1_18_R2.generator.CustomChunkGenerator;
+import org.bukkit.craftbukkit.CraftWorld;
+import org.bukkit.craftbukkit.generator.CustomChunkGenerator;
 import org.bukkit.generator.BiomeProvider;
 import org.bukkit.generator.BlockPopulator;
+import org.jetbrains.annotations.NotNull;
 
 import javax.annotation.Nullable;
-import java.io.IOException;
 import java.lang.reflect.Field;
 import java.nio.file.Path;
 import java.util.Collections;
@@ -74,6 +80,8 @@ import java.util.concurrent.CompletableFuture;
 import java.util.function.BooleanSupplier;
 import java.util.function.Supplier;
 
+import static net.minecraft.core.registries.Registries.BIOME;
+
 public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, LevelChunk, PaperweightRegen.ChunkStatusWrap> {
 
     private static final Logger LOGGER = LogManagerCompat.getLogger();
@@ -85,6 +93,7 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
     private static final Field generatorSettingBaseSupplierField;
     private static final Field delegateField;
     private static final Field chunkSourceField;
+    private static final Field generatorStructureStateField;
     private static final Field ringPositionsField;
     private static final Field hasGeneratedPositionsField;
 
@@ -96,23 +105,22 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
         chunkStati.put(ChunkStatus.STRUCTURE_STARTS, Concurrency.NONE);   // structure starts: uses unsynchronized maps
         chunkStati.put(
                 ChunkStatus.STRUCTURE_REFERENCES,
-                Concurrency.FULL
+                Concurrency.NONE
         );   // structure refs: radius 8, but only writes to current chunk
-        chunkStati.put(ChunkStatus.BIOMES, Concurrency.FULL);   // biomes: radius 0
+        chunkStati.put(ChunkStatus.BIOMES, Concurrency.NONE);   // biomes: radius 0
         chunkStati.put(ChunkStatus.NOISE, Concurrency.RADIUS); // noise: radius 8
         chunkStati.put(ChunkStatus.SURFACE, Concurrency.NONE);   // surface: radius 0, requires NONE
         chunkStati.put(ChunkStatus.CARVERS, Concurrency.NONE);   // carvers: radius 0, but RADIUS and FULL change results
-        chunkStati.put(
-                ChunkStatus.LIQUID_CARVERS,
-                Concurrency.NONE
-        );   // liquid carvers: radius 0, but RADIUS and FULL change results
         chunkStati.put(ChunkStatus.FEATURES, Concurrency.NONE);   // features: uses unsynchronized maps
+        chunkStati.put(
+                ChunkStatus.INITIALIZE_LIGHT,
+                Concurrency.FULL
+        ); // initialize_light: radius 0
         chunkStati.put(
                 ChunkStatus.LIGHT,
                 Concurrency.FULL
         );   // light: radius 1, but no writes to other chunks, only current chunk
-        chunkStati.put(ChunkStatus.SPAWN, Concurrency.FULL);   // spawn: radius 0
+        chunkStati.put(ChunkStatus.SPAWN, Concurrency.NONE);   // spawn: radius 0
-        chunkStati.put(ChunkStatus.HEIGHTMAPS, Concurrency.FULL);   // heightmaps: radius 0
 
         try {
             serverWorldsField = CraftServer.class.getDeclaredField("worlds");
@@ -134,22 +142,27 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
             flatBedrockField = tmpFlatBedrockField;
 
             generatorSettingBaseSupplierField = NoiseBasedChunkGenerator.class.getDeclaredField(Refraction.pickName(
-                    "settings", "h"));
+                    "settings", "e"));
             generatorSettingBaseSupplierField.setAccessible(true);
 
-            generatorSettingFlatField = FlatLevelSource.class.getDeclaredField(Refraction.pickName("settings", "g"));
+            generatorSettingFlatField = FlatLevelSource.class.getDeclaredField(Refraction.pickName("settings", "d"));
             generatorSettingFlatField.setAccessible(true);
 
             delegateField = CustomChunkGenerator.class.getDeclaredField("delegate");
             delegateField.setAccessible(true);
 
-            chunkSourceField = ServerLevel.class.getDeclaredField(Refraction.pickName("chunkSource", "K"));
+            chunkSourceField = ServerLevel.class.getDeclaredField(Refraction.pickName("chunkSource", "I"));
             chunkSourceField.setAccessible(true);
 
-            ringPositionsField = ChunkGenerator.class.getDeclaredField(Refraction.pickName("ringPositions", "h"));
+            generatorStructureStateField = ChunkMap.class.getDeclaredField(Refraction.pickName("chunkGeneratorState", "v"));
+            generatorStructureStateField.setAccessible(true);
+
+            ringPositionsField = ChunkGeneratorStructureState.class.getDeclaredField(Refraction.pickName("ringPositions", "g"));
             ringPositionsField.setAccessible(true);
 
-            hasGeneratedPositionsField = ChunkGenerator.class.getDeclaredField(Refraction.pickName("hasGeneratedPositions", "i"));
+            hasGeneratedPositionsField = ChunkGeneratorStructureState.class.getDeclaredField(
+                    Refraction.pickName("hasGeneratedPositions", "h")
+            );
             hasGeneratedPositionsField.setAccessible(true);
         } catch (Exception e) {
             throw new RuntimeException(e);
@@ -162,9 +175,10 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
     private ServerLevel freshWorld;
     private ServerChunkCache freshChunkProvider;
     private LevelStorageSource.LevelStorageAccess session;
-    private StructureManager structureManager;
+    private StructureTemplateManager structureTemplateManager;
     private ThreadedLevelLightEngine threadedLevelLightEngine;
     private ChunkGenerator chunkGenerator;
+    private WorldGenContext worldGenContext;
 
     private Path tempDir;
 
@@ -207,12 +221,10 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
         session = levelStorageSource.createAccess("faweregentempworld", levelStemResourceKey);
         PrimaryLevelData originalWorldData = originalServerWorld.serverLevelData;
 
-        BiomeProvider biomeProvider = getBiomeProvider();
-
         MinecraftServer server = originalServerWorld.getCraftServer().getServer();
-        WorldGenSettings originalOpts = originalWorldData.worldGenSettings();
+        WorldOptions originalOpts = originalWorldData.worldGenOptions();
-        WorldGenSettings newOpts = options.getSeed().isPresent()
+        WorldOptions newOpts = options.getSeed().isPresent()
-                ? originalOpts.withSeed(originalWorldData.isHardcore(), OptionalLong.of(seed))
+                ? originalOpts.withSeed(OptionalLong.of(seed))
                 : originalOpts;
         LevelSettings newWorldSettings = new LevelSettings(
                 "faweregentempworld",
@@ -221,9 +233,19 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
                 originalWorldData.settings.difficulty(),
                 originalWorldData.settings.allowCommands(),
                 originalWorldData.settings.gameRules(),
-                originalWorldData.settings.getDataPackConfig()
+                originalWorldData.settings.getDataConfiguration()
         );
-        PrimaryLevelData newWorldData = new PrimaryLevelData(newWorldSettings, newOpts, Lifecycle.stable());
+
+        PrimaryLevelData.SpecialWorldProperty specialWorldProperty =
+                originalWorldData.isFlatWorld()
+                        ? PrimaryLevelData.SpecialWorldProperty.FLAT
+                        : originalWorldData.isDebugWorld()
+                                ? PrimaryLevelData.SpecialWorldProperty.DEBUG
+                                : PrimaryLevelData.SpecialWorldProperty.NONE;
+        PrimaryLevelData newWorldData = new PrimaryLevelData(newWorldSettings, newOpts, specialWorldProperty, Lifecycle.stable());
+
+        BiomeProvider biomeProvider = getBiomeProvider();
+
 
         //init world
         freshWorld = Fawe.instance().getQueueHandler().sync((Supplier<ServerLevel>) () -> new ServerLevel(
@@ -232,66 +254,70 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
                 session,
                 newWorldData,
                 originalServerWorld.dimension(),
-                originalServerWorld.dimensionTypeRegistration(),
+                DedicatedServer.getServer().registryAccess().registry(Registries.LEVEL_STEM).orElseThrow()
+                        .getOrThrow(levelStemResourceKey),
                 new RegenNoOpWorldLoadListener(),
-                // placeholder. Required for new ChunkProviderServer, but we create and then set it later
-                newOpts.dimensions().getOrThrow(levelStemResourceKey).generator(),
                 originalServerWorld.isDebug(),
                 seed,
                 ImmutableList.of(),
                 false,
+                originalServerWorld.getRandomSequences(),
                 environment,
                 generator,
                 biomeProvider
         ) {
-            private final Holder<Biome> singleBiome = options.hasBiomeType() ? BuiltinRegistries.BIOME.asHolderIdMap().byId(
+
-                    WorldEditPlugin.getInstance().getBukkitImplAdapter().getInternalBiomeId(options.getBiomeType())
+            private final Holder<Biome> singleBiome = options.hasBiomeType() ? DedicatedServer.getServer().registryAccess()
-            ) : null;
+                    .registryOrThrow(BIOME).asHolderIdMap().byIdOrThrow(
+                            WorldEditPlugin.getInstance().getBukkitImplAdapter().getInternalBiomeId(options.getBiomeType())
+                    ) : null;
 
             @Override
-            public void tick(BooleanSupplier shouldKeepTicking) { //no ticking
+            public void tick(@NotNull BooleanSupplier shouldKeepTicking) { //no ticking
             }
 
             @Override
-            public Holder<Biome> getUncachedNoiseBiome(int biomeX, int biomeY, int biomeZ) {
+            public @NotNull Holder<Biome> getUncachedNoiseBiome(int biomeX, int biomeY, int biomeZ) {
                 if (options.hasBiomeType()) {
                     return singleBiome;
                 }
-                return PaperweightRegen.this.chunkGenerator.getBiomeSource().getNoiseBiome(biomeX, biomeY, biomeZ,
+                return PaperweightRegen.this.chunkGenerator.getBiomeSource().getNoiseBiome(
-                        PaperweightRegen.this.chunkGenerator.climateSampler()
+                        biomeX, biomeY, biomeZ, getChunkSource().randomState().sampler()
                 );
             }
+
         }).get();
         freshWorld.noSave = true;
         removeWorldFromWorldsMap();
         newWorldData.checkName(originalServerWorld.serverLevelData.getLevelName()); //rename to original world name
         if (paperConfigField != null) {
-            paperConfigField.set(freshWorld, originalServerWorld.paperConfig);
+            paperConfigField.set(freshWorld, originalServerWorld.paperConfig());
         }
 
-        //generator
         ChunkGenerator originalGenerator = originalChunkProvider.getGenerator();
         if (originalGenerator instanceof FlatLevelSource flatLevelSource) {
             FlatLevelGeneratorSettings generatorSettingFlat = flatLevelSource.settings();
-            chunkGenerator = new FlatLevelSource(originalGenerator.structureSets, generatorSettingFlat);
+            chunkGenerator = new FlatLevelSource(generatorSettingFlat);
         } else if (originalGenerator instanceof NoiseBasedChunkGenerator noiseBasedChunkGenerator) {
-            Holder<NoiseGeneratorSettings> generatorSettingBaseSupplier =
+            Holder<NoiseGeneratorSettings> generatorSettingBaseSupplier = (Holder<NoiseGeneratorSettings>)
-                    (Holder<NoiseGeneratorSettings>) generatorSettingBaseSupplierField
+                    generatorSettingBaseSupplierField.get(noiseBasedChunkGenerator);
-                            .get(originalGenerator);
             BiomeSource biomeSource;
             if (options.hasBiomeType()) {
-                biomeSource = new FixedBiomeSource(BuiltinRegistries.BIOME
+                biomeSource = new FixedBiomeSource(
-                        .asHolderIdMap()
+                        DedicatedServer.getServer().registryAccess()
-                        .byId(WorldEditPlugin.getInstance().getBukkitImplAdapter().getInternalBiomeId(options.getBiomeType())));
+                                .registryOrThrow(BIOME).asHolderIdMap().byIdOrThrow(
+                                        WorldEditPlugin.getInstance().getBukkitImplAdapter().getInternalBiomeId(options.getBiomeType())
+                                )
+                );
             } else {
                 biomeSource = originalGenerator.getBiomeSource();
             }
-            chunkGenerator = new NoiseBasedChunkGenerator(originalGenerator.structureSets, noiseBasedChunkGenerator.noises,
+            chunkGenerator = new NoiseBasedChunkGenerator(
-                    biomeSource, seed,
+                    biomeSource,
                     generatorSettingBaseSupplier
             );
         } else if (originalGenerator instanceof CustomChunkGenerator customChunkGenerator) {
-            chunkGenerator = customChunkGenerator.delegate;
+            chunkGenerator = customChunkGenerator.getDelegate();
         } else {
             LOGGER.error("Unsupported generator type {}", originalGenerator.getClass().getName());
             return false;
@@ -300,22 +326,8 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
             chunkGenerator = new CustomChunkGenerator(freshWorld, chunkGenerator, generator);
             generateConcurrent = generator.isParallelCapable();
         }
+//        chunkGenerator.conf = freshWorld.spigotConfig; - Does not exist anymore, may need to be re-addressed
 
-        if (seed == originalOpts.seed() && !options.hasBiomeType()) {
-            // Optimisation for needless ring position calculation when the seed and biome is the same.
-            boolean hasGeneratedPositions = hasGeneratedPositionsField.getBoolean(originalGenerator);
-            if (hasGeneratedPositions) {
-                Map<ConcentricRingsStructurePlacement, CompletableFuture<List<ChunkPos>>> ringPositions =
-                        (Map<ConcentricRingsStructurePlacement, CompletableFuture<List<ChunkPos>>>) ringPositionsField.get(
-                                originalGenerator);
-                Map<ConcentricRingsStructurePlacement, CompletableFuture<List<ChunkPos>>> copy = new Object2ObjectArrayMap<>(ringPositions);
-                ringPositionsField.set(chunkGenerator, copy);
-                hasGeneratedPositionsField.setBoolean(chunkGenerator, true);
-            }
-        }
-
-
-        chunkGenerator.conf = originalServerWorld.spigotConfig;
         freshChunkProvider = new ServerChunkCache(
                 freshWorld,
                 session,
@@ -333,7 +345,7 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
         ) {
             // redirect to LevelChunks created in #createChunks
             @Override
-            public ChunkAccess getChunk(int x, int z, ChunkStatus chunkstatus, boolean create) {
+            public ChunkAccess getChunk(int x, int z, @NotNull ChunkStatus chunkstatus, boolean create) {
                 ChunkAccess chunkAccess = getChunkAt(x, z);
                 if (chunkAccess == null && create) {
                     chunkAccess = createChunk(getProtoChunkAt(x, z));
@@ -342,11 +354,32 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
             }
         };
 
+        if (seed == originalOpts.seed() && !options.hasBiomeType()) {
+            // Optimisation for needless ring position calculation when the seed and biome is the same.
+            ChunkGeneratorStructureState state = (ChunkGeneratorStructureState) generatorStructureStateField.get(
+                    originalChunkProvider.chunkMap);
+            boolean hasGeneratedPositions = hasGeneratedPositionsField.getBoolean(state);
+            if (hasGeneratedPositions) {
+                Map<ConcentricRingsStructurePlacement, CompletableFuture<List<ChunkPos>>> origPositions =
+                        (Map<ConcentricRingsStructurePlacement, CompletableFuture<List<ChunkPos>>>) ringPositionsField.get(state);
+                Map<ConcentricRingsStructurePlacement, CompletableFuture<List<ChunkPos>>> copy = new Object2ObjectArrayMap<>(
+                        origPositions);
+                ChunkGeneratorStructureState newState = (ChunkGeneratorStructureState) generatorStructureStateField.get(
+                        freshChunkProvider.chunkMap);
+                ringPositionsField.set(newState, copy);
+                hasGeneratedPositionsField.setBoolean(newState, true);
+            }
+        }
+
+
         chunkSourceField.set(freshWorld, freshChunkProvider);
         //let's start then
-        structureManager = server.getStructureManager();
+        structureTemplateManager = server.getStructureManager();
-        threadedLevelLightEngine = freshChunkProvider.getLightEngine();
+        threadedLevelLightEngine = new NoOpLightEngine(freshChunkProvider);
 
+        this.worldGenContext = new WorldGenContext(freshWorld, chunkGenerator, structureTemplateManager,
+                threadedLevelLightEngine
+        );
         return true;
     }
 
@@ -362,7 +395,7 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
             Fawe.instance().getQueueHandler().sync(() -> {
                 try {
                     freshChunkProvider.close(false);
-                } catch (IOException e) {
+                } catch (Exception e) {
                     throw new RuntimeException(e);
                 }
             });
@@ -385,7 +418,7 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
     @Override
     protected ProtoChunk createProtoChunk(int x, int z) {
         return new FastProtoChunk(new ChunkPos(x, z), UpgradeData.EMPTY, freshWorld,
-                this.freshWorld.registryAccess().registryOrThrow(Registry.BIOME_REGISTRY), null
+                this.freshWorld.registryAccess().registryOrThrow(BIOME), null
         );
     }
 
@@ -411,7 +444,11 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
     @Override
     protected void populate(LevelChunk levelChunk, Random random, BlockPopulator blockPopulator) {
         // BlockPopulator#populate has to be called synchronously for TileEntity access
-        TaskManager.taskManager().task(() -> blockPopulator.populate(freshWorld.getWorld(), random, levelChunk.getBukkitChunk()));
+        TaskManager.taskManager().task(() -> {
+            final CraftWorld world = freshWorld.getWorld();
+            final Chunk chunk = world.getChunkAt(levelChunk.locX, levelChunk.locZ);
+            blockPopulator.populate(world, random, chunk);
+        });
     }
 
     @Override
@@ -427,14 +464,12 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
     //util
     @SuppressWarnings("unchecked")
     private void removeWorldFromWorldsMap() {
-        Fawe.instance().getQueueHandler().sync(() -> {
+        try {
-            try {
+            Map<String, org.bukkit.World> map = (Map<String, org.bukkit.World>) serverWorldsField.get(Bukkit.getServer());
-                Map<String, org.bukkit.World> map = (Map<String, org.bukkit.World>) serverWorldsField.get(Bukkit.getServer());
+            map.remove("faweregentempworld");
-                map.remove("faweregentempworld");
+        } catch (IllegalAccessException e) {
-            } catch (IllegalAccessException e) {
+            throw new RuntimeException(e);
-                throw new RuntimeException(e);
+        }
-            }
-        });
     }
 
     private ResourceKey<LevelStem> getWorldDimKey(org.bukkit.World.Environment env) {
@@ -451,11 +486,15 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
         }
 
         @Override
-        public void updateSpawnPos(ChunkPos spawnPos) {
+        public void updateSpawnPos(@NotNull ChunkPos spawnPos) {
         }
 
         @Override
-        public void onStatusChange(ChunkPos pos, @Nullable ChunkStatus status) {
+        public void onStatusChange(
+                final @NotNull ChunkPos pos,
+                @org.jetbrains.annotations.Nullable final net.minecraft.world.level.chunk.status.ChunkStatus status
+        ) {
+
         }
 
         @Override
@@ -487,15 +526,14 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
 
         // avoid warning on paper
 
-        // compatibility with spigot
+        @SuppressWarnings("unused") // compatibility with spigot
-
         public boolean generateFlatBedrock() {
             return generateFlatBedrock;
         }
 
         // no one will ever see the entities!
         @Override
-        public List<CompoundTag> getEntities() {
+        public @NotNull List<CompoundTag> getEntities() {
             return Collections.emptyList();
         }
 
@@ -516,23 +554,41 @@ public class PaperweightRegen extends Regenerator<ChunkAccess, ProtoChunk, Level
 
         @Override
         public String name() {
-            return chunkStatus.getName();
+            return chunkStatus.toString();
         }
 
         @Override
         public CompletableFuture<?> processChunk(List<ChunkAccess> accessibleChunks) {
             return chunkStatus.generate(
-                    Runnable::run, // TODO revisit, we might profit from this somehow?
+                    worldGenContext,
-                    freshWorld,
+                    Runnable::run,
-                    chunkGenerator,
+                    CompletableFuture::completedFuture,
-                    structureManager,
+                    accessibleChunks
-                    threadedLevelLightEngine,
-                    c -> CompletableFuture.completedFuture(Either.left(c)),
-                    accessibleChunks,
-                    true
             );
         }
 
     }
 
+    /**
+     * A light engine that does nothing. As light is calculated after pasting anyway, we can avoid
+     * work this way.
+     */
+    static class NoOpLightEngine extends ThreadedLevelLightEngine {
+
+        private static final ProcessorMailbox<Runnable> MAILBOX = ProcessorMailbox.create(task -> {
+        }, "fawe-no-op");
+        private static final ProcessorHandle<Message<Runnable>> HANDLE = ProcessorHandle.of("fawe-no-op", m -> {
+        });
+
+        public NoOpLightEngine(final ServerChunkCache chunkProvider) {
+            super(chunkProvider, chunkProvider.chunkMap, false, MAILBOX, HANDLE);
+        }
+
+        @Override
+        public @NotNull CompletableFuture<ChunkAccess> lightChunk(final @NotNull ChunkAccess chunk, final boolean excludeBlocks) {
+            return CompletableFuture.completedFuture(chunk);
+        }
+
+    }
+
 }

worldedit-bukkit/build.gradle.kts

@@ -36,6 +36,7 @@ repositories {
         name = "Glaremasters"
         url = uri("https://repo.glaremasters.me/repository/towny/")
     }
+    maven("https://s01.oss.sonatype.org/content/repositories/snapshots/") // TODO Remove when 4.17.0 is released
     flatDir { dir(File("src/main/resources")) }
 }
 
@@ -210,7 +211,7 @@ tasks {
         versionNumber.set("${project.version}")
         versionType.set("release")
         uploadFile.set(file("build/libs/${rootProject.name}-Bukkit-${project.version}.jar"))
-        gameVersions.addAll(listOf("1.20.4", "1.20.3", "1.20.2", "1.20.1", "1.20", "1.19.4", "1.18.2"))
+        gameVersions.addAll(listOf("1.20.6", "1.20.5", "1.20.3", "1.20.2", "1.20.1", "1.20", "1.19.4"))
         loaders.addAll(listOf("paper", "spigot"))
         changelog.set("The changelog is available on GitHub: https://github.com/IntellectualSites/" +
                 "FastAsyncWorldEdit/releases/tag/${project.version}")

worldedit-bukkit/src/main/java/com/fastasyncworldedit/bukkit/adapter/Regenerator.java

@@ -5,6 +5,7 @@ import com.fastasyncworldedit.core.queue.IChunkCache;
 import com.fastasyncworldedit.core.queue.IChunkGet;
 import com.fastasyncworldedit.core.queue.implementation.SingleThreadQueueExtent;
 import com.fastasyncworldedit.core.util.MathMan;
+import com.google.common.collect.Lists;
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
 import com.sk89q.worldedit.WorldEditException;
 import com.sk89q.worldedit.bukkit.BukkitAdapter;
@@ -24,11 +25,16 @@ import it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap;
 import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
 import it.unimi.dsi.fastutil.longs.LongArrayList;
 import it.unimi.dsi.fastutil.longs.LongList;
+import jdk.jfr.Category;
+import jdk.jfr.Event;
+import jdk.jfr.Label;
+import jdk.jfr.Name;
 import org.apache.logging.log4j.Logger;
 import org.bukkit.generator.BiomeProvider;
 import org.bukkit.generator.BlockPopulator;
 import org.bukkit.generator.WorldInfo;
 
+import java.util.AbstractList;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
@@ -36,6 +42,7 @@ import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Random;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutorService;
@@ -62,7 +69,7 @@ public abstract class Regenerator<IChunkAccess, ProtoChunk extends IChunkAccess,
     protected final RegenOptions options;
 
     //runtime
-    protected final Map<ChunkStatus, Concurrency> chunkStatuses = new LinkedHashMap<>();
+    protected final LinkedHashMap<ChunkStatus, Concurrency> chunkStatuses = new LinkedHashMap<>(); // TODO (j21): use SequencedMap
     private final Long2ObjectLinkedOpenHashMap<ProtoChunk> protoChunks = new Long2ObjectLinkedOpenHashMap<>();
     private final Long2ObjectOpenHashMap<Chunk> chunks = new Long2ObjectOpenHashMap<>();
     protected boolean generateConcurrent = true;
@@ -172,51 +179,70 @@ public abstract class Regenerator<IChunkAccess, ProtoChunk extends IChunkAccess,
         //TODO: can we get that required radius down without affecting chunk generation (e.g. strucures, features, ...)?
         //for now it is working well and fast, if we are bored in the future we could do the research (a lot of it) to reduce the border radius
 
-        //generate chunk coords lists with a certain radius
+        // to get the chunks we need to generate in the nth chunk status, we need to know how many chunks
-        Int2ObjectOpenHashMap<long[]> chunkCoordsForRadius = new Int2ObjectOpenHashMap<>();
+        // we need to generate in the n + 1 th chunk status. Summing up the margin solves that
-        chunkStatuses.keySet().stream().mapToInt(ChunkStatusWrapper::requiredNeighborChunkRadius0).distinct().forEach(radius -> {
+        LinkedHashMap<ChunkStatus, long[]> chunkCoordsForChunkStatus = new LinkedHashMap<>();
-            if (radius == -1) { //ignore ChunkStatus.EMPTY
+        int borderSum = 1;
-                return;
+        // TODO (j21): use SequencedMap#sequencedKeySet().reversed()
-            }
+        final List<ChunkStatus> reversedKeys = Lists.reverse(new ArrayList<>(chunkStatuses.keySet()));
-            int border = 10 - radius; //9 = 8 + 1, 8: max border radius used in chunk stages, 1: need 1 extra chunk for chunk
+        for (final ChunkStatus status : reversedKeys) {
-            // features to generate at the border of the region
+            chunkCoordsForChunkStatus.put(status, getChunkCoordsRegen(region, borderSum));
-            chunkCoordsForRadius.put(radius, getChunkCoordsRegen(region, border));
+            borderSum += status.requiredNeighborChunkRadius();
-        });
+        }
 
         //create chunks
-        for (long xz : chunkCoordsForRadius.get(0)) {
+        // TODO (j21): use SequencedMap#firstEntry().getKey()
+        for (long xz : chunkCoordsForChunkStatus.get(chunkStatuses.keySet().iterator().next())) {
             ProtoChunk chunk = createProtoChunk(MathMan.unpairIntX(xz), MathMan.unpairIntY(xz));
             protoChunks.put(xz, chunk);
         }
 
-        //generate lists for RegionLimitedWorldAccess, need to be square with odd length (e.g. 17x17), 17 = 1 middle chunk + 8 border chunks * 2
+        // a memory-efficient, lightweight "list" that calculates index -> ChunkAccess
-        Int2ObjectOpenHashMap<Long2ObjectOpenHashMap<List<IChunkAccess>>> worldLimits = new Int2ObjectOpenHashMap<>();
+        // as needed when accessed
-        chunkStatuses.keySet().stream().mapToInt(ChunkStatusWrapper::requiredNeighborChunkRadius0).distinct().forEach(radius -> {
+        class LazyChunkList extends AbstractList<IChunkAccess> {
-            if (radius == -1) { //ignore ChunkStatus.EMPTY
+            private final int size;
-                return;
+            private final int minX;
+            private final int minZ;
+            private final int sizeSqrt;
+
+            LazyChunkList(int radius, int centerX, int centerZ) {
+                this.sizeSqrt = radius + 1 + radius; // length of one side
+                this.size = this.sizeSqrt * this.sizeSqrt;
+                this.minX = centerX - radius;
+                this.minZ = centerZ - radius;
             }
-            Long2ObjectOpenHashMap<List<IChunkAccess>> map = new Long2ObjectOpenHashMap<>();
+            @Override
-            for (long xz : chunkCoordsForRadius.get(radius)) {
+            public IChunkAccess get(final int index) {
-                int x = MathMan.unpairIntX(xz);
+                Objects.checkIndex(index, size);
-                int z = MathMan.unpairIntY(xz);
+                int absX = (index % sizeSqrt) + minX;
-                List<IChunkAccess> l = new ArrayList<>((radius + 1 + radius) * (radius + 1 + radius));
+                int absZ = (index / sizeSqrt) + minZ;
-                for (int zz = z - radius; zz <= z + radius; zz++) { //order is important, first z then x
+                return protoChunks.get(MathMan.pairInt(absX, absZ));
-                    for (int xx = x - radius; xx <= x + radius; xx++) {
-                        l.add(protoChunks.get(MathMan.pairInt(xx, zz)));
-                    }
-                }
-                map.put(xz, l);
             }
-            worldLimits.put(radius, map);
+
-        });
+            @Override
+            public int size() {
+                return size;
+            }
+
+        }
+        @Label("Regeneration")
+        @Category("FAWE")
+        @Name("fawe.regen")
+        class RegenerationEvent extends Event {
+            private String chunkStatus;
+            private int chunksToProcess;
+        }
 
         //run generation tasks excluding FULL chunk status
         for (Map.Entry<ChunkStatus, Concurrency> entry : chunkStatuses.entrySet()) {
             ChunkStatus chunkStatus = entry.getKey();
-            int radius = chunkStatus.requiredNeighborChunkRadius0();
+            final RegenerationEvent event = new RegenerationEvent();
+            event.begin();
+            event.chunkStatus = chunkStatus.name();
+            int radius = Math.max(1, chunkStatus.requiredNeighborChunkRadius0());
 
-            long[] coords = chunkCoordsForRadius.get(radius);
+            long[] coords = chunkCoordsForChunkStatus.get(chunkStatus);
-            Long2ObjectOpenHashMap<List<IChunkAccess>> limitsForRadius = worldLimits.get(radius);
+            event.chunksToProcess = coords.length;
             if (this.generateConcurrent && entry.getValue() == Concurrency.RADIUS) {
                 SequentialTasks<ConcurrentTasks<LongList>> tasks = getChunkStatusTaskRows(coords, radius);
                 for (ConcurrentTasks<LongList> para : tasks) {
@@ -224,7 +250,8 @@ public abstract class Regenerator<IChunkAccess, ProtoChunk extends IChunkAccess,
                     for (LongList row : para) {
                         scheduled.add(() -> {
                             for (long xz : row) {
-                                chunkStatus.processChunkSave(xz, limitsForRadius.get(xz));
+                                chunkStatus.processChunkSave(xz, new LazyChunkList(radius, MathMan.unpairIntX(xz),
+                                        MathMan.unpairIntY(xz)));
                             }
                         });
                     }
@@ -234,7 +261,8 @@ public abstract class Regenerator<IChunkAccess, ProtoChunk extends IChunkAccess,
                 // every chunk can be processed individually
                 List<Runnable> scheduled = new ArrayList<>(coords.length);
                 for (long xz : coords) {
-                    scheduled.add(() -> chunkStatus.processChunkSave(xz, limitsForRadius.get(xz)));
+                    scheduled.add(() -> chunkStatus.processChunkSave(xz, new LazyChunkList(radius, MathMan.unpairIntX(xz),
+                            MathMan.unpairIntY(xz))));
                 }
                 runAndWait(scheduled);
             } else { // Concurrency.NONE or generateConcurrent == false
@@ -242,28 +270,33 @@ public abstract class Regenerator<IChunkAccess, ProtoChunk extends IChunkAccess,
                 // running regen on the main thread otherwise triggers async-only events on the main thread
                 executor.submit(() -> {
                     for (long xz : coords) {
-                        chunkStatus.processChunkSave(xz, limitsForRadius.get(xz));
+                        chunkStatus.processChunkSave(xz, new LazyChunkList(radius, MathMan.unpairIntX(xz),
+                                MathMan.unpairIntY(xz)));
                     }
                 }).get(); // wait until finished this step
             }
+            event.commit();
         }
 
         //convert to proper chunks
-        for (long xz : chunkCoordsForRadius.get(0)) {
+        // TODO (j21): use SequencedMap#firstEntry().getValue()
+        for (long xz : chunkCoordsForChunkStatus.values().iterator().next()) {
             ProtoChunk proto = protoChunks.get(xz);
             chunks.put(xz, createChunk(proto));
         }
 
         //final chunkstatus
         ChunkStatus FULL = getFullChunkStatus();
-        for (long xz : chunkCoordsForRadius.get(0)) { //FULL.requiredNeighbourChunkRadius() == 0!
+        // TODO (j21): use SequencedMap#firstEntry().getValue()
+        for (long xz : chunkCoordsForChunkStatus.values().iterator().next()) { //FULL.requiredNeighbourChunkRadius() == 0!
             Chunk chunk = chunks.get(xz);
             FULL.processChunkSave(xz, List.of(chunk));
         }
 
         //populate
         List<BlockPopulator> populators = getBlockPopulators();
-        for (long xz : chunkCoordsForRadius.get(0)) {
+        // TODO (j21): use SequencedMap#firstEntry().getValue()
+        for (long xz : chunkCoordsForChunkStatus.values().iterator().next()) {
             int x = MathMan.unpairIntX(xz);
             int z = MathMan.unpairIntY(xz);
 
@@ -277,8 +310,10 @@ public abstract class Regenerator<IChunkAccess, ProtoChunk extends IChunkAccess,
             });
         }
 
-        source = new SingleThreadQueueExtent(BukkitWorld.HAS_MIN_Y ? originalBukkitWorld.getMinHeight() : 0,
+        source = new SingleThreadQueueExtent(
-                BukkitWorld.HAS_MIN_Y ? originalBukkitWorld.getMaxHeight() : 256);
+                BukkitWorld.HAS_MIN_Y ? originalBukkitWorld.getMinHeight() : 0,
+                BukkitWorld.HAS_MIN_Y ? originalBukkitWorld.getMaxHeight() : 256
+        );
         source.init(target, initSourceQueueCache(), null);
         return true;
     }
@@ -503,7 +538,7 @@ public abstract class Regenerator<IChunkAccess, ProtoChunk extends IChunkAccess,
             int numlists = Math.min(requiredNeighbors * 2 + 1, maxZ - minZ + 1);
 
             Int2ObjectOpenHashMap<LongList> byZ = new Int2ObjectOpenHashMap<>();
-            int expectedListLength = (coordsCount + 1) / (maxZ - minZ);
+            int expectedListLength = (coordsCount + 1) / (maxZ - minZ + 2);
 
             //init lists
             for (int i = minZ; i <= maxZ; i++) {
@@ -581,13 +616,16 @@ public abstract class Regenerator<IChunkAccess, ProtoChunk extends IChunkAccess,
             try {
                 processChunk(accessibleChunks).get();
             } catch (Exception e) {
-                LOGGER.error(
+                LOGGER.error("Error while running {} on chunk {}/{}",
-                        "Error while running " + name() + " on chunk " + MathMan.unpairIntX(xz) + "/" + MathMan.unpairIntY(xz),
+                        name(), MathMan.unpairIntX(xz), MathMan.unpairIntY(xz), e);
-                        e
-                );
             }
         }
 
+        @Override
+        public String toString() {
+            return name();
+        }
+
     }
 
     public static class SequentialTasks<T> extends Tasks<T> {

worldedit-bukkit/src/main/java/com/fastasyncworldedit/bukkit/listener/ChunkListener.java

@@ -135,7 +135,7 @@ public abstract class ChunkListener implements Listener {
     @Deprecated(since = "2.0.0")
     public void cleanup(Chunk chunk) {
         for (Entity entity : chunk.getEntities()) {
-            if (entity.getType() == EntityType.DROPPED_ITEM) {
+            if (entity.getType() == EntityType.ITEM) {
                 entity.remove();
             }
         }

worldedit-bukkit/src/main/java/com/sk89q/bukkit/util/CommandRegistration.java

@@ -20,6 +20,7 @@
 package com.sk89q.bukkit.util;
 
 import com.sk89q.util.ReflectionUtil;
+import io.papermc.lib.PaperLib;
 import org.bukkit.Bukkit;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
@@ -96,12 +97,11 @@ public class CommandRegistration {
             return fallbackCommands;
         }
 
-        CommandMap commandMap = ReflectionUtil.getField(plugin.getServer().getPluginManager(), "commandMap");
+        CommandMap commandMap = PaperLib.isPaper() ? Bukkit.getCommandMap() : ReflectionUtil.getField(plugin.getServer().getPluginManager(), "commandMap");
         if (commandMap == null) {
             Bukkit.getServer().getLogger().severe(plugin.getDescription().getName()
-                    + ": Could not retrieve server CommandMap, using fallback instead!");
+                    + ": Could not retrieve server CommandMap");
-            fallbackCommands = commandMap = new SimpleCommandMap(Bukkit.getServer());
+            throw new IllegalStateException("Failed to retrieve command map, make sure you are running supported server software");
-            Bukkit.getServer().getPluginManager().registerEvents(new FallbackRegistrationListener(fallbackCommands), plugin);
         } else {
             serverCommandMap = commandMap;
         }

worldedit-core/doctools/build.gradle.kts

@@ -1,16 +1,12 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-    kotlin("jvm") version "1.8.20"
+    kotlin("jvm") version "1.9.23"
     application
 }
 
 applyCommonConfiguration()
 
-tasks.withType<KotlinCompile> {
-    kotlinOptions.jvmTarget = "17"
-}
-
 application.mainClass.set("com.sk89q.worldedit.internal.util.DocumentationPrinter")
 tasks.named<JavaExec>("run") {
     workingDir = rootProject.projectDir

worldedit-core/src/main/java/com/sk89q/worldedit/WorldEditManifest.java

@@ -23,7 +23,7 @@ import javax.annotation.Nullable;
 import java.io.IOException;
 import java.io.UncheckedIOException;
 import java.net.JarURLConnection;
-import java.net.URL;
+import java.net.URI;
 import java.util.function.Supplier;
 import java.util.jar.Attributes;
 import java.util.jar.Manifest;
@@ -73,8 +73,7 @@ public class WorldEditManifest {
         }
 
         try {
-            URL url = new URL(classPath);
+            JarURLConnection jarConnection = (JarURLConnection) URI.create(classPath).toURL().openConnection();
-            JarURLConnection jarConnection = (JarURLConnection) url.openConnection();
             Manifest manifest = jarConnection.getManifest();
             return manifest.getMainAttributes();
         } catch (IOException e) {

worldedit-core/src/main/java/com/sk89q/worldedit/entity/BaseEntity.java

@@ -56,6 +56,7 @@ public class BaseEntity implements NbtValued {
      * @param nbtData NBT data
      * @deprecated Use {@link BaseEntity#BaseEntity(EntityType, LazyReference)}
      */
+    @SuppressWarnings("this-escape")
     @Deprecated
     public BaseEntity(EntityType type, CompoundTag nbtData) {
         this(type);
@@ -87,6 +88,7 @@ public class BaseEntity implements NbtValued {
      *
      * @param other the object to clone
      */
+    @SuppressWarnings("this-escape")
     public BaseEntity(BaseEntity other) {
         checkNotNull(other);
         this.type = other.getType();

worldedit-core/src/main/java/com/sk89q/worldedit/extent/validation/BlockChangeLimiter.java

@@ -62,6 +62,7 @@ public class BlockChangeLimiter extends AbstractDelegateExtent {
      *
      * @param limit the limit (>= 0) or -1 for no limit
      */
+    @SuppressWarnings("this-escape") // Unlikely anyone is extending this in practice
     public void setLimit(int limit) {
         checkArgument(limit >= -1, "limit >= -1 required");
         this.limit = limit;

worldedit-core/src/main/java/com/sk89q/worldedit/util/io/ForwardSeekableInputStream.java

@@ -19,11 +19,16 @@
 
 package com.sk89q.worldedit.util.io;
 
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
 import java.io.IOException;
 import java.io.InputStream;
 
 public class ForwardSeekableInputStream extends InputStream {
 
+    private static final Logger LOGGER = LogManager.getLogger();
+
     protected InputStream parent;
     protected long position = 0;
 
@@ -60,7 +65,7 @@ public class ForwardSeekableInputStream extends InputStream {
 
     @Override
     public int read(byte[] b, int off, int len) throws IOException {
-        int read = super.read(b, off, len);
+        int read = parent.read(b, off, len);
         position += read;
         return read;
     }
@@ -86,6 +91,7 @@ public class ForwardSeekableInputStream extends InputStream {
 
     public void seek(long n) throws IOException {
         long diff = n - position;
+        LOGGER.error("Seek to {} from {} using {}", n, position, diff);
 
         if (diff < 0) {
             throw new IOException("Can't seek backwards");

worldedit-core/src/main/java/com/sk89q/worldedit/util/net/HttpRequest.java

@@ -357,7 +357,7 @@ public class HttpRequest implements Closeable {
      */
     public static URL url(String url) {
         try {
-            return new URL(url);
+            return URI.create(url).toURL();
         } catch (MalformedURLException e) {
             throw new RuntimeException(e);
         }
@@ -371,13 +371,7 @@ public class HttpRequest implements Closeable {
      */
     private static URL reformat(URL existing) {
         try {
-            URL url = new URL(existing.toString());
+            return existing.toURI().toURL();
-            URI uri = new URI(
-                    url.getProtocol(), url.getUserInfo(), url.getHost(), url.getPort(),
-                    url.getPath(), url.getQuery(), url.getRef()
-            );
-            url = uri.toURL();
-            return url;
         } catch (MalformedURLException | URISyntaxException e) {
             return existing;
         }

worldedit-core/src/main/java/com/sk89q/worldedit/util/paste/EngineHubPaste.java

@@ -24,6 +24,7 @@ import com.google.gson.reflect.TypeToken;
 import com.sk89q.worldedit.util.net.HttpRequest;
 
 import java.io.IOException;
+import java.net.URI;
 import java.net.URL;
 import java.util.Map;
 import java.util.concurrent.Callable;
@@ -83,7 +84,7 @@ public class EngineHubPaste implements Paster {
                     .execute()
                     .expectResponseCode(200, 204);
 
-            return new URL(response.viewUrl);
+            return URI.create(response.viewUrl).toURL();
         }
 
     }

worldedit-core/src/main/java/com/sk89q/worldedit/util/task/FutureForwardingTask.java

@@ -82,21 +82,22 @@ public class FutureForwardingTask<V> extends AbstractTask<V> {
         return future.get(timeout, unit);
     }
 
+    // TODO: consider deprecating in favor of Future.State?
     @Override
-    public State getState() {
+    public Task.State getState() {
         if (isCancelled()) {
-            return State.CANCELLED;
+            return Task.State.CANCELLED;
         } else if (isDone()) {
             try {
                 get();
-                return State.SUCCEEDED;
+                return Task.State.SUCCEEDED;
             } catch (InterruptedException e) {
-                return State.CANCELLED;
+                return Task.State.CANCELLED;
             } catch (ExecutionException e) {
-                return State.FAILED;
+                return Task.State.FAILED;
             }
         } else {
-            return State.RUNNING;
+            return Task.State.RUNNING;
         }
     }
 

worldedit-core/src/main/java/com/sk89q/worldedit/world/block/BlockCategories.java

@@ -33,8 +33,10 @@ public final class BlockCategories {
     public static final BlockCategory ANCIENT_CITY_REPLACEABLE = get("minecraft:ancient_city_replaceable");
     public static final BlockCategory ANIMALS_SPAWNABLE_ON = get("minecraft:animals_spawnable_on");
     public static final BlockCategory ANVIL = get("minecraft:anvil");
+    public static final BlockCategory ARMADILLO_SPAWNABLE_ON = get("minecraft:armadillo_spawnable_on");
     public static final BlockCategory AXOLOTLS_SPAWNABLE_ON = get("minecraft:axolotls_spawnable_on");
     public static final BlockCategory AZALEA_GROWS_ON = get("minecraft:azalea_grows_on");
+    public static final BlockCategory BADLANDS_TERRACOTTA = get("minecraft:badlands_terracotta");
     public static final BlockCategory AZALEA_ROOT_REPLACEABLE = get("minecraft:azalea_root_replaceable");
     public static final BlockCategory BAMBOO_BLOCKS = get("minecraft:bamboo_blocks");
     public static final BlockCategory BAMBOO_PLANTABLE_ON = get("minecraft:bamboo_plantable_on");
@@ -78,6 +80,7 @@ public final class BlockCategories {
     public static final BlockCategory DIRT = get("minecraft:dirt");
     @Deprecated
     public static final BlockCategory DIRT_LIKE = get("minecraft:dirt_like");
+    public static final BlockCategory DOES_NOT_BLOCK_HOPPERS = get("minecraft:does_not_block_hoppers");
     public static final BlockCategory DOORS = get("minecraft:doors");
     public static final BlockCategory DRAGON_IMMUNE = get("minecraft:dragon_immune");
     public static final BlockCategory DRAGON_TRANSPARENT = get("minecraft:dragon_transparent");
@@ -103,6 +106,12 @@ public final class BlockCategories {
     public static final BlockCategory HOGLIN_REPELLENTS = get("minecraft:hoglin_repellents");
     public static final BlockCategory ICE = get("minecraft:ice");
     public static final BlockCategory IMPERMEABLE = get("minecraft:impermeable");
+    public static final BlockCategory INCORRECT_FOR_DIAMOND_TOOL = get("minecraft:incorrect_for_diamond_tool");
+    public static final BlockCategory INCORRECT_FOR_GOLD_TOOL = get("minecraft:incorrect_for_gold_tool");
+    public static final BlockCategory INCORRECT_FOR_IRON_TOOL = get("minecraft:incorrect_for_iron_tool");
+    public static final BlockCategory INCORRECT_FOR_NETHERITE_TOOL = get("minecraft:incorrect_for_netherite_tool");
+    public static final BlockCategory INCORRECT_FOR_STONE_TOOL = get("minecraft:incorrect_for_stone_tool");
+    public static final BlockCategory INCORRECT_FOR_WOODEN_TOOL = get("minecraft:incorrect_for_wooden_tool");
     public static final BlockCategory INFINIBURN_END = get("minecraft:infiniburn_end");
     public static final BlockCategory INFINIBURN_NETHER = get("minecraft:infiniburn_nether");
     public static final BlockCategory INFINIBURN_OVERWORLD = get("minecraft:infiniburn_overworld");

worldedit-core/src/main/java/com/sk89q/worldedit/world/block/BlockType.java

@@ -60,6 +60,7 @@ public class BlockType implements Keyed, Pattern {
     private static final Logger LOGGER = LogManagerCompat.getLogger();
 
     private final String id;
+    @SuppressWarnings("this-escape")
     private final LazyReference<FuzzyBlockState> emptyFuzzy
             = LazyReference.from(() -> new FuzzyBlockState(this));
     //FAWE start

worldedit-core/src/main/java/com/sk89q/worldedit/world/block/BlockTypes.java

@@ -908,6 +908,8 @@ public final class BlockTypes {
     @Nullable
     public static final BlockType HAY_BLOCK = init();
     @Nullable
+    public static final BlockType HEAVY_CORE = init();
+    @Nullable
     public static final BlockType HEAVY_WEIGHTED_PRESSURE_PLATE = init();
     @Nullable
     public static final BlockType HONEYCOMB_BLOCK = init();

worldedit-core/src/main/java/com/sk89q/worldedit/world/chunk/AnvilChunk13.java

@@ -163,7 +163,7 @@ public class AnvilChunk13 implements Chunk {
                     throw new InvalidFormatException("Too short block state table");
                 }
                 currentSerializedValue = blockStatesSerialized[nextSerializedItem++];
-                localBlockId |= (currentSerializedValue & ((1 << bitsNextLong) - 1)) << remainingBits;
+                localBlockId |= (int) ((currentSerializedValue & ((1 << bitsNextLong) - 1)) << remainingBits);
                 currentSerializedValue >>>= bitsNextLong;
                 remainingBits = 64 - bitsNextLong;
             } else {

worldedit-core/src/main/java/com/sk89q/worldedit/world/entity/EntityTypes.java

@@ -35,6 +35,8 @@ public final class EntityTypes {
     @Nullable
     public static final EntityType AREA_EFFECT_CLOUD = get("minecraft:area_effect_cloud");
     @Nullable
+    public static final EntityType ARMADILLO = get("minecraft:armadillo");
+    @Nullable
     public static final EntityType ARMOR_STAND = get("minecraft:armor_stand");
     @Nullable
     public static final EntityType ARROW = get("minecraft:arrow");
@@ -51,8 +53,12 @@ public final class EntityTypes {
     @Nullable
     public static final EntityType BOAT = get("minecraft:boat");
     @Nullable
+    public static final EntityType BOGGED = get("minecraft:bogged");
+    @Nullable
     public static final EntityType BREEZE = get("minecraft:breeze");
     @Nullable
+    public static final EntityType BREEZE_WIND_CHARGE = get("minecraft:breeze_wind_charge");
+    @Nullable
     public static final EntityType CAMEL = get("minecraft:camel");
     @Nullable
     public static final EntityType CAT = get("minecraft:cat");
@@ -171,6 +177,8 @@ public final class EntityTypes {
     @Nullable
     public static final EntityType OCELOT = get("minecraft:ocelot");
     @Nullable
+    public static final EntityType OMINOUS_ITEM_SPAWNER = get("minecraft:ominous_item_spawner");
+    @Nullable
     public static final EntityType PAINTING = get("minecraft:painting");
     @Nullable
     public static final EntityType PANDA = get("minecraft:panda");

worldedit-core/src/main/java/com/sk89q/worldedit/world/item/ItemCategories.java

@@ -29,28 +29,36 @@ public final class ItemCategories {
 
     public static final ItemCategory ACACIA_LOGS = get("minecraft:acacia_logs");
     public static final ItemCategory ANVIL = get("minecraft:anvil");
+    public static final ItemCategory ARMADILLO_FOOD = get("minecraft:armadillo_food");
     public static final ItemCategory ARROWS = get("minecraft:arrows");
     public static final ItemCategory AXES = get("minecraft:axes");
-    public static final ItemCategory AXOLOTL_TEMPT_ITEMS = get("minecraft:axolotl_tempt_items");
+    public static final ItemCategory AXOLOTL_FOOD = get("minecraft:axolotl_food");
+    @Deprecated public static final ItemCategory AXOLOTL_TEMPT_ITEMS = get("minecraft:axolotl_tempt_items");
     public static final ItemCategory BAMBOO_BLOCKS = get("minecraft:bamboo_blocks");
     public static final ItemCategory BANNERS = get("minecraft:banners");
     public static final ItemCategory BEACON_PAYMENT_ITEMS = get("minecraft:beacon_payment_items");
     public static final ItemCategory BEDS = get("minecraft:beds");
+    public static final ItemCategory BEE_FOOD = get("minecraft:bee_food");
     public static final ItemCategory BIRCH_LOGS = get("minecraft:birch_logs");
     public static final ItemCategory BOATS = get("minecraft:boats");
     public static final ItemCategory BOOKSHELF_BOOKS = get("minecraft:bookshelf_books");
     public static final ItemCategory BREAKS_DECORATED_POTS = get("minecraft:breaks_decorated_pots");
     public static final ItemCategory BUTTONS = get("minecraft:buttons");
+    public static final ItemCategory CAMEL_FOOD = get("minecraft:camel_food");
     public static final ItemCategory CANDLES = get("minecraft:candles");
     @Deprecated public static final ItemCategory CARPETS = get("minecraft:carpets");
+    public static final ItemCategory CAT_FOOD = get("minecraft:cat_food");
     public static final ItemCategory CHERRY_LOGS = get("minecraft:cherry_logs");
+    public static final ItemCategory CHEST_ARMOR = get("minecraft:chest_armor");
     public static final ItemCategory CHEST_BOATS = get("minecraft:chest_boats");
+    public static final ItemCategory CHICKEN_FOOD = get("minecraft:chicken_food");
     public static final ItemCategory CLUSTER_MAX_HARVESTABLES = get("minecraft:cluster_max_harvestables");
     public static final ItemCategory COAL_ORES = get("minecraft:coal_ores");
     public static final ItemCategory COALS = get("minecraft:coals");
     public static final ItemCategory COMPASSES = get("minecraft:compasses");
     public static final ItemCategory COMPLETES_FIND_TREE_TUTORIAL = get("minecraft:completes_find_tree_tutorial");
     public static final ItemCategory COPPER_ORES = get("minecraft:copper_ores");
+    public static final ItemCategory COW_FOOD = get("minecraft:cow_food");
     public static final ItemCategory CREEPER_DROP_MUSIC_DISCS = get("minecraft:creeper_drop_music_discs");
     public static final ItemCategory CREEPER_IGNITERS = get("minecraft:creeper_igniters");
     public static final ItemCategory CRIMSON_STEMS = get("minecraft:crimson_stems");
@@ -61,44 +69,82 @@ public final class ItemCategories {
     public static final ItemCategory DIAMOND_ORES = get("minecraft:diamond_ores");
     public static final ItemCategory DIRT = get("minecraft:dirt");
     public static final ItemCategory DOORS = get("minecraft:doors");
+    public static final ItemCategory DYEABLE = get("minecraft:dyeable");
     public static final ItemCategory EMERALD_ORES = get("minecraft:emerald_ores");
+    public static final ItemCategory ENCHANTABLE_ARMOR = get("minecraft:enchantable/armor");
+    public static final ItemCategory ENCHANTABLE_BOW = get("minecraft:enchantable/bow");
+    public static final ItemCategory ENCHANTABLE_CHEST_ARMOR = get("minecraft:enchantable/chest_armor");
+    public static final ItemCategory ENCHANTABLE_CROSSBOW = get("minecraft:enchantable/crossbow");
+    public static final ItemCategory ENCHANTABLE_DURABILITY = get("minecraft:enchantable/durability");
+    public static final ItemCategory ENCHANTABLE_EQUIPPABLE = get("minecraft:enchantable/equippable");
+    public static final ItemCategory ENCHANTABLE_FIRE_ASPECT = get("minecraft:enchantable/fire_aspect");
+    public static final ItemCategory ENCHANTABLE_FISHING = get("minecraft:enchantable/fishing");
+    public static final ItemCategory ENCHANTABLE_FOOT_ARMOR = get("minecraft:enchantable/foot_armor");
+    public static final ItemCategory ENCHANTABLE_HEAD_ARMOR = get("minecraft:enchantable/head_armor");
+    public static final ItemCategory ENCHANTABLE_LEG_ARMOR = get("minecraft:enchantable/leg_armor");
+    public static final ItemCategory ENCHANTABLE_MINING = get("minecraft:enchantable/mining");
+    public static final ItemCategory ENCHANTABLE_MINING_LOOT = get("minecraft:enchantable/mining_loot");
+    public static final ItemCategory ENCHANTABLE_SHARP_WEAPON = get("minecraft:enchantable/sharp_weapon");
+    public static final ItemCategory ENCHANTABLE_SWORD = get("minecraft:enchantable/sword");
+    public static final ItemCategory ENCHANTABLE_TRIDENT = get("minecraft:enchantable/trident");
+    public static final ItemCategory ENCHANTABLE_VANISHING = get("minecraft:enchantable/vanishing");
+    public static final ItemCategory ENCHANTABLE_WEAPON = get("minecraft:enchantable/weapon");
     public static final ItemCategory FENCE_GATES = get("minecraft:fence_gates");
     public static final ItemCategory FENCES = get("minecraft:fences");
     public static final ItemCategory FISHES = get("minecraft:fishes");
     public static final ItemCategory FLOWERS = get("minecraft:flowers");
+    public static final ItemCategory FOOT_ARMOR = get("minecraft:foot_armor");
     public static final ItemCategory FOX_FOOD = get("minecraft:fox_food");
     public static final ItemCategory FREEZE_IMMUNE_WEARABLES = get("minecraft:freeze_immune_wearables");
+    public static final ItemCategory FROG_FOOD = get("minecraft:frog_food");
     @Deprecated
     public static final ItemCategory FURNACE_MATERIALS = get("minecraft:furnace_materials");
+    public static final ItemCategory GOAT_FOOD = get("minecraft:goat_food");
     public static final ItemCategory GOLD_ORES = get("minecraft:gold_ores");
     public static final ItemCategory HANGING_SIGNS = get("minecraft:hanging_signs");
+    public static final ItemCategory HEAD_ARMOR = get("minecraft:head_armor");
     public static final ItemCategory HOES = get("minecraft:hoes");
+    public static final ItemCategory HOGLIN_FOOD = get("minecraft:hoglin_food");
+    public static final ItemCategory HORSE_FOOD = get("minecraft:horse_food");
+    public static final ItemCategory HORSE_TEMPT_ITEMS = get("minecraft:horse_tempt_items");
     public static final ItemCategory IGNORED_BY_PIGLIN_BABIES = get("minecraft:ignored_by_piglin_babies");
     public static final ItemCategory IRON_ORES = get("minecraft:iron_ores");
     public static final ItemCategory JUNGLE_LOGS = get("minecraft:jungle_logs");
     public static final ItemCategory LAPIS_ORES = get("minecraft:lapis_ores");
     public static final ItemCategory LEAVES = get("minecraft:leaves");
     public static final ItemCategory LECTERN_BOOKS = get("minecraft:lectern_books");
+    public static final ItemCategory LEG_ARMOR = get("minecraft:leg_armor");
+    public static final ItemCategory LLAMA_FOOD = get("minecraft:llama_food");
+    public static final ItemCategory LLAMA_TEMPT_ITEMS = get("minecraft:llama_tempt_items");
     public static final ItemCategory LOGS = get("minecraft:logs");
     public static final ItemCategory LOGS_THAT_BURN = get("minecraft:logs_that_burn");
     public static final ItemCategory MANGROVE_LOGS = get("minecraft:mangrove_logs");
+    public static final ItemCategory MEAT = get("minecraft:meat");
     public static final ItemCategory MUSIC_DISCS = get("minecraft:music_discs");
     public static final ItemCategory NON_FLAMMABLE_WOOD = get("minecraft:non_flammable_wood");
     public static final ItemCategory NOTEBLOCK_TOP_INSTRUMENTS = get("minecraft:noteblock_top_instruments");
     public static final ItemCategory OAK_LOGS = get("minecraft:oak_logs");
     @Deprecated public static final ItemCategory OCCLUDES_VIBRATION_SIGNALS = get("minecraft:occludes_vibration_signals");
+    public static final ItemCategory OCELOT_FOOD = get("minecraft:ocelot_food");
     @Deprecated public static final ItemCategory OVERWORLD_NATURAL_LOGS = get("minecraft:overworld_natural_logs");
+    public static final ItemCategory PANDA_FOOD = get("minecraft:panda_food");
+    public static final ItemCategory PARROT_FOOD = get("minecraft:parrot_food");
+    public static final ItemCategory PARROT_POISONOUS_FOOD = get("minecraft:parrot_poisonous_food");
     public static final ItemCategory PICKAXES = get("minecraft:pickaxes");
+    public static final ItemCategory PIG_FOOD = get("minecraft:pig_food");
     public static final ItemCategory PIGLIN_FOOD = get("minecraft:piglin_food");
     public static final ItemCategory PIGLIN_LOVED = get("minecraft:piglin_loved");
     public static final ItemCategory PIGLIN_REPELLENTS = get("minecraft:piglin_repellents");
     public static final ItemCategory PLANKS = get("minecraft:planks");
+    public static final ItemCategory RABBIT_FOOD = get("minecraft:rabbit_food");
     public static final ItemCategory RAILS = get("minecraft:rails");
     public static final ItemCategory REDSTONE_ORES = get("minecraft:redstone_ores");
     public static final ItemCategory SAND = get("minecraft:sand");
     public static final ItemCategory SAPLINGS = get("minecraft:saplings");
+    public static final ItemCategory SHEEP_FOOD = get("minecraft:sheep_food");
     public static final ItemCategory SHOVELS = get("minecraft:shovels");
     public static final ItemCategory SIGNS = get("minecraft:signs");
+    public static final ItemCategory SKULLS = get("minecraft:skulls");
     public static final ItemCategory SLABS = get("minecraft:slabs");
     public static final ItemCategory SMALL_FLOWERS = get("minecraft:small_flowers");
     public static final ItemCategory SMELTS_TO_GLASS = get("minecraft:smelts_to_glass");
@@ -110,18 +156,22 @@ public final class ItemCategories {
     public static final ItemCategory STONE_BUTTONS = get("minecraft:stone_buttons");
     public static final ItemCategory STONE_CRAFTING_MATERIALS = get("minecraft:stone_crafting_materials");
     public static final ItemCategory STONE_TOOL_MATERIALS = get("minecraft:stone_tool_materials");
+    public static final ItemCategory STRIDER_FOOD = get("minecraft:strider_food");
+    public static final ItemCategory STRIDER_TEMPT_ITEMS = get("minecraft:strider_tempt_items");
     public static final ItemCategory SWORDS = get("minecraft:swords");
     public static final ItemCategory TALL_FLOWERS = get("minecraft:tall_flowers");
     public static final ItemCategory TERRACOTTA = get("minecraft:terracotta");
-    public static final ItemCategory TOOLS = get("minecraft:tools");
+    @Deprecated public static final ItemCategory TOOLS = get("minecraft:tools");
     public static final ItemCategory TRAPDOORS = get("minecraft:trapdoors");
     public static final ItemCategory TRIM_MATERIALS = get("minecraft:trim_materials");
     public static final ItemCategory TRIM_TEMPLATES = get("minecraft:trim_templates");
     public static final ItemCategory TRIMMABLE_ARMOR = get("minecraft:trimmable_armor");
+    public static final ItemCategory TURTLE_FOOD = get("minecraft:turtle_food");
     public static final ItemCategory VILLAGER_PLANTABLE_SEEDS = get("minecraft:villager_plantable_seeds");
     public static final ItemCategory WALLS = get("minecraft:walls");
     public static final ItemCategory WARPED_STEMS = get("minecraft:warped_stems");
     public static final ItemCategory WART_BLOCKS = get("minecraft:wart_blocks");
+    public static final ItemCategory WOLF_FOOD = get("minecraft:wolf_food");
     public static final ItemCategory WOODEN_BUTTONS = get("minecraft:wooden_buttons");
     public static final ItemCategory WOODEN_DOORS = get("minecraft:wooden_doors");
     public static final ItemCategory WOODEN_FENCES = get("minecraft:wooden_fences");

worldedit-core/src/main/java/com/sk89q/worldedit/world/item/ItemType.java

@@ -42,7 +42,7 @@ public class ItemType implements RegistryItem, Keyed {
     public static final NamespacedRegistry<ItemType> REGISTRY = new NamespacedRegistry<>("item type", true);
 
     private final String id;
-    @SuppressWarnings("deprecation")
+    @SuppressWarnings({"deprecation", "this-escape"})
     private transient final LazyReference<String> name = LazyReference.from(() -> {
         String name = GuavaUtil.firstNonNull(
                 WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.GAME_HOOKS)
@@ -51,10 +51,12 @@ public class ItemType implements RegistryItem, Keyed {
         );
         return name.isEmpty() ? getId() : name;
     });
+    @SuppressWarnings("this-escape")
     private transient final LazyReference<Component> richName = LazyReference.from(() ->
             WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.GAME_HOOKS)
                     .getRegistries().getItemRegistry().getRichName(this)
     );
+    @SuppressWarnings("this-escape")
     private transient final LazyReference<ItemMaterial> itemMaterial = LazyReference.from(() ->
             WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.GAME_HOOKS)
                     .getRegistries().getItemRegistry().getMaterial(this)

worldedit-core/src/main/java/com/sk89q/worldedit/world/item/ItemTypes.java

@@ -105,6 +105,10 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType ARMOR_STAND = init();
     @Nullable
+    public static final ItemType ARMADILLO_SCUTE = init();
+    @Nullable
+    public static final ItemType ARMADILLO_SPAWN_EGG = init();
+    @Nullable
     public static final ItemType ARMS_UP_POTTERY_SHERD = init();
     @Nullable
     public static final ItemType ARROW = init();
@@ -297,6 +301,10 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType BLUE_WOOL = init();
     @Nullable
+    public static final ItemType BOGGED_SPAWN_EGG = init();
+    @Nullable
+    public static final ItemType BOLT_ARMOR_TRIM_SMITHING_TEMPLATE = init();
+    @Nullable
     public static final ItemType BONE = init();
     @Nullable
     public static final ItemType BONE_BLOCK = init();
@@ -319,6 +327,8 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType BREAD = init();
     @Nullable
+    public static final ItemType BREEZE_ROD = init();
+    @Nullable
     public static final ItemType BREEZE_SPAWN_EGG = init();
     @Nullable
     public static final ItemType BREWER_POTTERY_SHERD = init();
@@ -971,6 +981,12 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType FLINT_AND_STEEL = init();
     @Nullable
+    public static final ItemType FLOW_ARMOR_TRIM_SMITHING_TEMPLATE = init();
+    @Nullable
+    public static final ItemType FLOW_BANNER_PATTERN = init();
+    @Nullable
+    public static final ItemType FLOW_POTTERY_SHERD = init();
+    @Nullable
     public static final ItemType FLOWER_BANNER_PATTERN = init();
     @Nullable
     public static final ItemType FLOWER_POT = init();
@@ -1132,6 +1148,10 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType GUNPOWDER = init();
     @Nullable
+    public static final ItemType GUSTER_BANNER_PATTERN = init();
+    @Nullable
+    public static final ItemType GUSTER_POTTERY_SHERD = init();
+    @Nullable
     public static final ItemType HANGING_ROOTS = init();
     @Nullable
     public static final ItemType HAY_BLOCK = init();
@@ -1142,6 +1162,8 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType HEARTBREAK_POTTERY_SHERD = init();
     @Nullable
+    public static final ItemType HEAVY_CORE = init();
+    @Nullable
     public static final ItemType HEAVY_WEIGHTED_PRESSURE_PLATE = init();
     @Nullable
     public static final ItemType HOGLIN_SPAWN_EGG = init();
@@ -1404,6 +1426,8 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType LOOM = init();
     @Nullable
+    public static final ItemType MACE = init();
+    @Nullable
     public static final ItemType MAGENTA_BANNER = init();
     @Nullable
     public static final ItemType MAGENTA_BED = init();
@@ -1668,6 +1692,10 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType OCHRE_FROGLIGHT = init();
     @Nullable
+    public static final ItemType OMINOUS_BOTTLE = init();
+    @Nullable
+    public static final ItemType OMINOUS_TRIAL_KEY = init();
+    @Nullable
     public static final ItemType ORANGE_BANNER = init();
     @Nullable
     public static final ItemType ORANGE_BED = init();
@@ -2075,6 +2103,8 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType SCAFFOLDING = init();
     @Nullable
+    public static final ItemType SCRAPE_POTTERY_SHERD = init();
+    @Nullable
     public static final ItemType SCULK = init();
     @Nullable
     public static final ItemType SCULK_CATALYST = init();
@@ -2085,6 +2115,7 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType SCULK_VEIN = init();
     @Nullable
+    @Deprecated
     public static final ItemType SCUTE = init();
     @Nullable
     public static final ItemType SEA_LANTERN = init();
@@ -2424,10 +2455,14 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType TURTLE_HELMET = init();
     @Nullable
+    public static final ItemType TURTLE_SCUTE = init();
+    @Nullable
     public static final ItemType TURTLE_SPAWN_EGG = init();
     @Nullable
     public static final ItemType TWISTING_VINES = init();
     @Nullable
+    public static final ItemType VAULT = init();
+    @Nullable
     public static final ItemType VERDANT_FROGLIGHT = init();
     @Nullable
     public static final ItemType VEX_ARMOR_TRIM_SMITHING_TEMPLATE = init();
@@ -2614,6 +2649,8 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType WILD_ARMOR_TRIM_SMITHING_TEMPLATE = init();
     @Nullable
+    public static final ItemType WIND_CHARGE = init();
+    @Nullable
     public static final ItemType WITCH_SPAWN_EGG = init();
     @Nullable
     public static final ItemType WITHER_ROSE = init();
@@ -2624,6 +2661,8 @@ public final class ItemTypes {
     @Nullable
     public static final ItemType WITHER_SPAWN_EGG = init();
     @Nullable
+    public static final ItemType WOLF_ARMOR = init();
+    @Nullable
     public static final ItemType WOLF_SPAWN_EGG = init();
     @Nullable
     public static final ItemType WOODEN_AXE = init();