Merge branch 'main' of https://github.com/IntellectualSites/FastAsyncWorldEdit

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

renovate.json

@@ -0,0 +1,6 @@
+{
+  "extends": [
+    "config:base"
+  ],
+  "ignoreDeps": ["guava", "rhino-runtime", "mockito-core", "antlr4", "antlr4-runtime", "paranamer"]
+}

worldedit-bukkit/build.gradle.kts

@@ -23,6 +23,7 @@ repositories {
         name = "ProtocolLib Repo"
         url = uri("https://repo.dmulloy2.net/nexus/repository/public/")
     }
+    maven { url = uri("https://repo.inventivetalent.org/content/groups/public/") }
     flatDir {dir(File("src/main/resources"))}
 }
 
@@ -56,7 +57,7 @@ dependencies {
     "compileOnly"("org.jetbrains:annotations:20.1.0")
     "testCompileOnly"("org.jetbrains:annotations:20.1.0")
     "compileOnly"("org.spigotmc:spigot:1.16.4-R0.1-SNAPSHOT")
-    "implementation"("io.papermc:paperlib:1.0.4")
+    "implementation"("io.papermc:paperlib:1.0.6")
     "compileOnly"("com.sk89q:dummypermscompat:1.10") {
         exclude("com.github.MilkBowl", "VaultAPI")
     }
@@ -68,15 +69,16 @@ dependencies {
         exclude("com.sk89q.worldedit.worldedit-libs", "bukkit")
         exclude("com.sk89q.worldedit.worldedit-libs", "core")
     }
-    "compile"("org.bstats:bstats-bukkit:1.7")
+    "compile"("org.bstats:bstats-bukkit:1.8")
+    "compile"("com.intellectualsites.paster:Paster:1.0.1-SNAPSHOT")
     // Third party
-    "implementation"("com.github.InventivetalentDev:MapManager:1.7.+") { isTransitive = false }
+    compileOnlyApi("org.inventivetalent:mapmanager:1.7.+") { isTransitive = false }
     "implementation"("com.github.TechFortress:GriefPrevention:16.+") { isTransitive = false }
     "implementation"("com.massivecraft:mcore:7.0.1") { isTransitive = false }
     "implementation"("com.bekvon.bukkit.residence:Residence:4.5._13.1") { isTransitive = false }
     "implementation"("com.palmergames.bukkit:towny:0.84.0.9") { isTransitive = false }
     "implementation"("com.thevoxelbox.voxelsniper:voxelsniper:5.171.0") { isTransitive = false }
-    "implementation"("com.comphenix.protocol:ProtocolLib:4.5.0") { isTransitive = false }
+    "implementation"("com.comphenix.protocol:ProtocolLib:4.5.1") { isTransitive = false }
 }
 
 tasks.named<Copy>("processResources") {
@@ -107,17 +109,17 @@ tasks.named<ShadowJar>("shadowJar") {
         include(dependency("org.slf4j:slf4j-api"))
         include(dependency("org.apache.logging.log4j:log4j-slf4j-impl"))
         include(dependency("org.antlr:antlr4-runtime"))
-        relocate("org.bstats", "com.sk89q.worldedit.bukkit.bstats") {
-            include(dependency("org.bstats:bstats-bukkit:1.7"))
-        }
         relocate("io.papermc.lib", "com.sk89q.worldedit.bukkit.paperlib") {
-            include(dependency("io.papermc:paperlib:1.0.4"))
+            include(dependency("io.papermc:paperlib:1.0.6"))
         }
         relocate("it.unimi.dsi.fastutil", "com.sk89q.worldedit.bukkit.fastutil") {
             include(dependency("it.unimi.dsi:fastutil"))
         }
         relocate("org.bstats", "com.boydti.metrics") {
-            include(dependency("org.bstats:bstats-bukkit:1.7"))
+            include(dependency("org.bstats:bstats-bukkit:1.8"))
+        }
+        relocate("com.intellectualsites.paster", "com.boydti.fawe.paster") {
+            include(dependency("com.intellectualsites.paster:Paster:1.0.1-SNAPSHOT"))
         }
     }
 }

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_15_2/BukkitAdapter_1_15_2.java

@@ -190,7 +190,6 @@ public final class BukkitAdapter_1_15_2 extends NMSAdapter {
             return;
         }
         if (playerChunk.hasBeenLoaded()) {
-            TaskManager.IMP.sync(() -> {
             try {
                 int dirtyBits = fieldDirtyBits.getInt(playerChunk);
                 if (dirtyBits == 0) {
@@ -216,11 +215,7 @@ public final class BukkitAdapter_1_15_2 extends NMSAdapter {
             } catch (IllegalAccessException e) {
                 e.printStackTrace();
             }
-                return null;
-            });
-            return;
         }
-        return;
     }
 
     /*

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_15_2/BukkitGetBlocks_1_15_2.java

@@ -4,7 +4,6 @@ import com.boydti.fawe.Fawe;
 import com.boydti.fawe.FaweCache;
 import com.boydti.fawe.beta.IChunkGet;
 import com.boydti.fawe.beta.IChunkSet;
-import com.boydti.fawe.beta.implementation.blocks.CharBlocks;
 import com.boydti.fawe.beta.implementation.blocks.CharGetBlocks;
 import com.boydti.fawe.beta.implementation.lighting.HeightMapType;
 import com.boydti.fawe.beta.implementation.queue.QueueHandler;
@@ -90,6 +89,7 @@ public class BukkitGetBlocks_1_15_2 extends CharGetBlocks {
     public NibbleArray[] skyLight = new NibbleArray[16];
     private boolean createCopy = false;
     private BukkitGetBlocks_1_15_2_Copy copy = null;
+    private boolean forceLoadSections = true;
 
     public BukkitGetBlocks_1_15_2(World world, int chunkX, int chunkZ) {
         this(((CraftWorld) world).getHandle(), chunkX, chunkZ);
@@ -316,7 +316,8 @@ public class BukkitGetBlocks_1_15_2 extends CharGetBlocks {
 
     @Override
     public <T extends Future<T>> T call(IChunkSet set, Runnable finalizer) {
-        copy = createCopy ? new BukkitGetBlocks_1_15_2_Copy(world, getChunkX(), getChunkZ()) : null;
+        forceLoadSections = false;
+        copy = createCopy ? new BukkitGetBlocks_1_15_2_Copy(world) : null;
         try {
             WorldServer nmsWorld = world;
             Chunk nmsChunk = ensureLoaded(nmsWorld, chunkX, chunkZ);
@@ -357,13 +358,14 @@ public class BukkitGetBlocks_1_15_2 extends CharGetBlocks {
                     if (!set.hasSection(layer)) {
                         continue;
                     }
-                    if (createCopy) {
-                        copy.storeSection(layer);
-                    }
 
                     bitMask |= 1 << layer;
 
-                    char[] setArr = set.load(layer);
+                    char[] setArr = set.load(layer).clone();
+                    if (createCopy) {
+                        copy.storeSection(layer, load(layer).clone());
+                    }
+
                     ChunkSection newSection;
                     ChunkSection existingSection = sections[layer];
                     if (existingSection == null) {
@@ -392,7 +394,7 @@ public class BukkitGetBlocks_1_15_2 extends CharGetBlocks {
                                 this.nmsChunk = nmsChunk;
                                 this.sections = null;
                                 this.reset();
-                            } else if (existingSection != getSections()[layer]) {
+                            } else if (existingSection != getSections(false)[layer]) {
                                 this.sections[layer] = existingSection;
                                 this.reset();
                             } else if (!Arrays.equals(update(layer, new char[4096]), load(layer))) {
@@ -403,7 +405,6 @@ public class BukkitGetBlocks_1_15_2 extends CharGetBlocks {
                             newSection = BukkitAdapter_1_15_2.newChunkSection(layer, this::load, setArr, fastmode);
                             if (!BukkitAdapter_1_15_2.setSectionAtomic(sections, existingSection, newSection, layer)) {
                                 log.error("Failed to set chunk section:" + chunkX + "," + chunkZ + " layer: " + layer);
-                                continue;
                             } else {
                                 updateGet(this, nmsChunk, sections, newSection, setArr, layer);
                             }
@@ -470,9 +471,7 @@ public class BukkitGetBlocks_1_15_2 extends CharGetBlocks {
 
                 Set<UUID> entityRemoves = set.getEntityRemoves();
                 if (entityRemoves != null && !entityRemoves.isEmpty()) {
-                    if (syncTasks == null) {
                     syncTasks = new Runnable[3];
-                    }
 
                     syncTasks[2] = () -> {
                         final List<Entity>[] entities = nmsChunk.getEntitySlices();
@@ -632,12 +631,14 @@ public class BukkitGetBlocks_1_15_2 extends CharGetBlocks {
         } catch (Throwable e) {
             e.printStackTrace();
             return null;
+        } finally {
+            forceLoadSections = true;
         }
     }
 
     @Override
     public synchronized char[] update(int layer, char[] data) {
-        ChunkSection section = getSections()[layer];
+        ChunkSection section = getSections(true)[layer];
         // Section is null, return empty array
         if (section == null) {
             data = new char[4096];
@@ -752,7 +753,10 @@ public class BukkitGetBlocks_1_15_2 extends CharGetBlocks {
         }
     }
 
-    public ChunkSection[] getSections() {
+    public ChunkSection[] getSections(boolean force) {
+        if (force && forceLoadSections) {
+            return sections = getChunk().getSections().clone();
+        }
         ChunkSection[] tmp = sections;
         if (tmp == null) {
             synchronized (this) {
@@ -804,7 +808,7 @@ public class BukkitGetBlocks_1_15_2 extends CharGetBlocks {
 
     @Override
     public boolean hasSection(int layer) {
-        return getSections()[layer] != null;
+        return getSections(false)[layer] != null;
     }
 
     @Override
@@ -817,10 +821,10 @@ public class BukkitGetBlocks_1_15_2 extends CharGetBlocks {
             return super.trim(true);
         } else {
             for (int i = 0; i < 16; i++) {
-                if (!hasSection(i) || super.sections[i] == CharBlocks.EMPTY) {
+                if (!hasSection(i) || !super.sections[i].isFull()) {
                     continue;
                 }
-                ChunkSection existing = getSections()[i];
+                ChunkSection existing = getSections(true)[i];
                 try {
                     final DataPaletteBlock<IBlockData> blocksExisting = existing.getBlocks();
 

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_15_2/BukkitGetBlocks_1_15_2_Copy.java

@@ -2,6 +2,10 @@ package com.boydti.fawe.bukkit.adapter.mc1_15_2;
 
 
 import com.boydti.fawe.FaweCache;
+import com.boydti.fawe.beta.IBlocks;
+import com.boydti.fawe.beta.IChunkGet;
+import com.boydti.fawe.beta.IChunkSet;
+import com.boydti.fawe.beta.implementation.lighting.HeightMapType;
 import com.boydti.fawe.bukkit.adapter.mc1_15_2.nbt.LazyCompoundTag_1_15_2;
 import com.google.common.base.Suppliers;
 import com.sk89q.jnbt.CompoundTag;
@@ -21,22 +25,25 @@ import net.minecraft.server.v1_15_R1.TileEntity;
 import net.minecraft.server.v1_15_R1.WorldServer;
 import org.bukkit.craftbukkit.v1_15_R1.block.CraftBlock;
 import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.Range;
 
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
+import java.util.concurrent.Future;
 
-public class BukkitGetBlocks_1_15_2_Copy extends BukkitGetBlocks_1_15_2 {
+public class BukkitGetBlocks_1_15_2_Copy implements IChunkGet {
 
     private final Map<BlockVector3, CompoundTag> tiles = new HashMap<>();
     private final Set<CompoundTag> entities = new HashSet<>();
     private BiomeStorage biomeStorage;
-    private final char[][] blocks = new char[16][4096];
+    private final char[][] blocks = new char[16][];
+    private final WorldServer world;
 
-    protected BukkitGetBlocks_1_15_2_Copy(WorldServer world, int X, int Z) {
-        super(world, X, Z);
+    protected BukkitGetBlocks_1_15_2_Copy(WorldServer world) {
+        this.world = world;
     }
 
     protected void storeTile(TileEntity tile) {
@@ -87,6 +94,16 @@ public class BukkitGetBlocks_1_15_2_Copy extends BukkitGetBlocks_1_15_2 {
         return null;
     }
 
+    @Override
+    public void setCreateCopy(boolean createCopy) {
+
+    }
+
+    @Override
+    public boolean isCreateCopy() {
+        return false;
+    }
+
     protected void storeBiomes(BiomeStorage biomeStorage) {
         this.biomeStorage = new BiomeStorage(BukkitAdapter_1_15_2.getBiomeArray(biomeStorage).clone());
     }
@@ -105,8 +122,18 @@ public class BukkitGetBlocks_1_15_2_Copy extends BukkitGetBlocks_1_15_2 {
         return base != null ? BukkitAdapter.adapt(CraftBlock.biomeBaseToBiome(base)) : null;
     }
 
-    protected void storeSection(int layer) {
-        blocks[layer] = update(layer, null).clone();
+    @Override
+    public boolean trim(boolean aggressive, int layer) {
+        return false;
+    }
+
+    @Override
+    public IBlocks reset() {
+        return null;
+    }
+
+    protected void storeSection(int layer, char[] data) {
+        blocks[layer] = data;
     }
 
     @Override
@@ -115,15 +142,50 @@ public class BukkitGetBlocks_1_15_2_Copy extends BukkitGetBlocks_1_15_2 {
         return state.toBaseBlock(this, x, y, z);
     }
 
+    @Override
+    public boolean hasSection(@Range(from = 0, to = 15) int layer) {
+        return blocks[layer] != null;
+    }
+
+    @Override
+    public char[] load(int layer) {
+        return blocks[layer];
+    }
+
     @Override
     public BlockState getBlock(int x, int y, int z) {
         return BlockTypesCache.states[get(x, y, z)];
     }
 
     @Override
+    public int getSkyLight(int x, int y, int z) {
+        return 0;
+    }
+
+    @Override
+    public int getEmmittedLight(int x, int y, int z) {
+        return 0;
+    }
+
+    @Override
+    public int[] getHeightMap(HeightMapType type) {
+        return new int[0];
+    }
+
+    @Override
+    public <T extends Future<T>> T call(IChunkSet set, Runnable finalize) {
+        return null;
+    }
+
     public char get(int x, int y, int z) {
         final int layer = y >> 4;
         final int index = (y & 15) << 8 | z << 4 | x;
         return blocks[layer][index];
     }
+
+
+    @Override
+    public boolean trim(boolean aggressive) {
+        return false;
+    }
 }

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_15_2/FAWEWorldNativeAccess_1_15_2.java

@@ -58,7 +58,7 @@ public class FAWEWorldNativeAccess_1_15_2 implements WorldNativeAccess<Chunk, IB
 
     @Override
     public IBlockData toNative(com.sk89q.worldedit.world.block.BlockState state) {
-        int stateId = BlockStateIdAccess.getBlockStateId(state);
+        int stateId = adapter.ordinalToIbdID(state.getOrdinalChar());
         return BlockStateIdAccess.isValidInternalId(stateId)
                 ? Block.getByCombinedId(stateId)
                 : ((CraftBlockData) BukkitAdapter.adapt(state)).getState();
@@ -72,7 +72,8 @@ public class FAWEWorldNativeAccess_1_15_2 implements WorldNativeAccess<Chunk, IB
     @Nullable
     @Override
     public IBlockData setBlockState(Chunk chunk, BlockPosition position, IBlockData state) {
-        return chunk.setType(position, state, false);
+        return chunk.setType(position, state,
+            this.sideEffectSet != null && this.sideEffectSet.shouldApply(SideEffect.UPDATE));
     }
 
     @Override
@@ -166,9 +167,4 @@ public class FAWEWorldNativeAccess_1_15_2 implements WorldNativeAccess<Chunk, IB
     public void onBlockStateChange(BlockPosition pos, IBlockData oldState, IBlockData newState) {
         getWorld().a(pos, oldState, newState);
     }
-
-    @Override
-    public <B extends BlockStateHolder<B>> boolean setBlock(BlockVector3 position, B block, SideEffectSet sideEffects) throws WorldEditException {
-        return this.adapter.setBlock(this.getChunk(position.getBlockX() >> 4, position.getBlockZ() >> 4).bukkitChunk, position.getBlockX(), position.getBlockY(), position.getBlockZ(), block, sideEffectSet.shouldApply(SideEffect.LIGHTING));
-    }
 }

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_15_2/nbt/LazyCompoundTag_1_15_2.java

@@ -12,15 +12,18 @@ import net.minecraft.server.v1_15_R1.NBTTagList;
 
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.function.Supplier;
 
 public class LazyCompoundTag_1_15_2 extends CompoundTag {
+
     private final Supplier<NBTTagCompound> nmsTag;
+    private CompoundTag cachedValue;
 
     public LazyCompoundTag_1_15_2(Supplier<NBTTagCompound> tag) {
-        super(null);
+        super(new HashMap<>());
         this.nmsTag = tag;
     }
 
@@ -34,12 +37,10 @@ public class LazyCompoundTag_1_15_2 extends CompoundTag {
 
     @Override
     public Map<String, Tag> getValue() {
-        Map<String, Tag> value = super.getValue();
-        if (value == null) {
-            Tag tag = WorldEditPlugin.getInstance().getBukkitImplAdapter().toNative(nmsTag.get());
-            setValue(((CompoundTag) tag).getValue());
+        if (cachedValue == null) {
+            cachedValue = (CompoundTag) WorldEditPlugin.getInstance().getBukkitImplAdapter().toNative(nmsTag.get());
         }
-        return super.getValue();
+        return cachedValue.getValue();
     }
 
     public boolean containsKey(String key) {

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_1/BukkitAdapter_1_16_1.java

@@ -187,7 +187,6 @@ public final class BukkitAdapter_1_16_1 extends NMSAdapter {
             return;
         }
         if (playerChunk.hasBeenLoaded()) {
-            TaskManager.IMP.sync(() -> {
             try {
                 int dirtyBits = fieldDirtyBits.getInt(playerChunk);
                 if (dirtyBits == 0) {
@@ -214,8 +213,6 @@ public final class BukkitAdapter_1_16_1 extends NMSAdapter {
             } catch (IllegalAccessException e) {
                 e.printStackTrace();
             }
-                return null;
-            });
         }
     }
 

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_1/BukkitGetBlocks_1_16_1.java

@@ -4,7 +4,6 @@ import com.boydti.fawe.Fawe;
 import com.boydti.fawe.FaweCache;
 import com.boydti.fawe.beta.IChunkGet;
 import com.boydti.fawe.beta.IChunkSet;
-import com.boydti.fawe.beta.implementation.blocks.CharBlocks;
 import com.boydti.fawe.beta.implementation.blocks.CharGetBlocks;
 import com.boydti.fawe.beta.implementation.lighting.HeightMapType;
 import com.boydti.fawe.beta.implementation.queue.QueueHandler;
@@ -90,6 +89,7 @@ public class BukkitGetBlocks_1_16_1 extends CharGetBlocks {
     public NibbleArray[] skyLight = new NibbleArray[16];
     private boolean createCopy = false;
     private BukkitGetBlocks_1_16_1_Copy copy = null;
+    private boolean forceLoadSections = true;
 
     public BukkitGetBlocks_1_16_1(World world, int chunkX, int chunkZ) {
         this(((CraftWorld) world).getHandle(), chunkX, chunkZ);
@@ -316,7 +316,8 @@ public class BukkitGetBlocks_1_16_1 extends CharGetBlocks {
 
     @Override
     public <T extends Future<T>> T call(IChunkSet set, Runnable finalizer) {
-        copy = createCopy ? new BukkitGetBlocks_1_16_1_Copy(world, getChunkX(), getChunkZ()) : null;
+        forceLoadSections = false;
+        copy = createCopy ? new BukkitGetBlocks_1_16_1_Copy(world) : null;
         try {
             WorldServer nmsWorld = world;
             Chunk nmsChunk = ensureLoaded(nmsWorld, chunkX, chunkZ);
@@ -357,13 +358,14 @@ public class BukkitGetBlocks_1_16_1 extends CharGetBlocks {
                     if (!set.hasSection(layer)) {
                         continue;
                     }
-                    if (createCopy) {
-                        copy.storeSection(layer);
-                    }
 
                     bitMask |= 1 << layer;
 
-                    char[] setArr = set.load(layer);
+                    char[] setArr = set.load(layer).clone();
+                    if (createCopy) {
+                        copy.storeSection(layer, load(layer).clone());
+                    }
+
                     ChunkSection newSection;
                     ChunkSection existingSection = sections[layer];
                     if (existingSection == null) {
@@ -392,7 +394,7 @@ public class BukkitGetBlocks_1_16_1 extends CharGetBlocks {
                                 this.nmsChunk = nmsChunk;
                                 this.sections = null;
                                 this.reset();
-                            } else if (existingSection != getSections()[layer]) {
+                            } else if (existingSection != getSections(false)[layer]) {
                                 this.sections[layer] = existingSection;
                                 this.reset();
                             } else if (!Arrays.equals(update(layer, new char[4096]), load(layer))) {
@@ -405,7 +407,6 @@ public class BukkitGetBlocks_1_16_1 extends CharGetBlocks {
                             if (!BukkitAdapter_1_16_1
                                     .setSectionAtomic(sections, existingSection, newSection, layer)) {
                                 log.error("Failed to set chunk section:" + chunkX + "," + chunkZ + " layer: " + layer);
-                                continue;
                             } else {
                                 updateGet(this, nmsChunk, sections, newSection, setArr, layer);
                             }
@@ -472,9 +473,7 @@ public class BukkitGetBlocks_1_16_1 extends CharGetBlocks {
 
                 Set<UUID> entityRemoves = set.getEntityRemoves();
                 if (entityRemoves != null && !entityRemoves.isEmpty()) {
-                    if (syncTasks == null) {
                     syncTasks = new Runnable[3];
-                    }
 
                     syncTasks[2] = () -> {
                         final List<Entity>[] entities = nmsChunk.getEntitySlices();
@@ -634,12 +633,14 @@ public class BukkitGetBlocks_1_16_1 extends CharGetBlocks {
         } catch (Throwable e) {
             e.printStackTrace();
             return null;
+        } finally {
+            forceLoadSections = true;
         }
     }
 
     @Override
     public synchronized char[] update(int layer, char[] data) {
-        ChunkSection section = getSections()[layer];
+        ChunkSection section = getSections(true)[layer];
         // Section is null, return empty array
         if (section == null) {
             data = new char[4096];
@@ -754,7 +755,10 @@ public class BukkitGetBlocks_1_16_1 extends CharGetBlocks {
         }
     }
 
-    public ChunkSection[] getSections() {
+    public ChunkSection[] getSections(boolean force) {
+        if (force && forceLoadSections) {
+            return sections = getChunk().getSections().clone();
+        }
         ChunkSection[] tmp = sections;
         if (tmp == null) {
             synchronized (this) {
@@ -806,7 +810,7 @@ public class BukkitGetBlocks_1_16_1 extends CharGetBlocks {
 
     @Override
     public boolean hasSection(int layer) {
-        return getSections()[layer] != null;
+        return getSections(false)[layer] != null;
     }
 
     @Override
@@ -819,10 +823,10 @@ public class BukkitGetBlocks_1_16_1 extends CharGetBlocks {
             return super.trim(true);
         } else {
             for (int i = 0; i < 16; i++) {
-                if (!hasSection(i) || super.sections[i] == CharBlocks.EMPTY) {
+                if (!hasSection(i) || !super.sections[i].isFull()) {
                     continue;
                 }
-                ChunkSection existing = getSections()[i];
+                ChunkSection existing = getSections(true)[i];
                 try {
                     final DataPaletteBlock<IBlockData> blocksExisting = existing.getBlocks();
 

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_1/BukkitGetBlocks_1_16_1_Copy.java

@@ -2,6 +2,10 @@ package com.boydti.fawe.bukkit.adapter.mc1_16_1;
 
 
 import com.boydti.fawe.FaweCache;
+import com.boydti.fawe.beta.IBlocks;
+import com.boydti.fawe.beta.IChunkGet;
+import com.boydti.fawe.beta.IChunkSet;
+import com.boydti.fawe.beta.implementation.lighting.HeightMapType;
 import com.boydti.fawe.bukkit.adapter.mc1_16_1.nbt.LazyCompoundTag_1_16_1;
 import com.google.common.base.Suppliers;
 import com.sk89q.jnbt.CompoundTag;
@@ -16,28 +20,30 @@ import com.sk89q.worldedit.world.block.BlockTypesCache;
 import net.minecraft.server.v1_16_R1.BiomeBase;
 import net.minecraft.server.v1_16_R1.BiomeStorage;
 import net.minecraft.server.v1_16_R1.Entity;
-import net.minecraft.server.v1_16_R1.IRegistry;
 import net.minecraft.server.v1_16_R1.NBTTagCompound;
 import net.minecraft.server.v1_16_R1.TileEntity;
 import net.minecraft.server.v1_16_R1.WorldServer;
 import org.bukkit.craftbukkit.v1_16_R1.block.CraftBlock;
 import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.Range;
 
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
+import java.util.concurrent.Future;
 
-public class BukkitGetBlocks_1_16_1_Copy extends BukkitGetBlocks_1_16_1 {
+public class BukkitGetBlocks_1_16_1_Copy implements IChunkGet {
 
     private final Map<BlockVector3, CompoundTag> tiles = new HashMap<>();
     private final Set<CompoundTag> entities = new HashSet<>();
     private BiomeStorage biomeStorage;
-    private final char[][] blocks = new char[16][4096];
+    private final char[][] blocks = new char[16][];
+    private final WorldServer world;
 
-    protected BukkitGetBlocks_1_16_1_Copy(WorldServer world, int X, int Z) {
-        super(world, X, Z);
+    protected BukkitGetBlocks_1_16_1_Copy(WorldServer world) {
+        this.world = world;
     }
 
     protected void storeTile(TileEntity tile) {
@@ -88,6 +94,16 @@ public class BukkitGetBlocks_1_16_1_Copy extends BukkitGetBlocks_1_16_1 {
         return null;
     }
 
+    @Override
+    public void setCreateCopy(boolean createCopy) {
+
+    }
+
+    @Override
+    public boolean isCreateCopy() {
+        return false;
+    }
+
     protected void storeBiomes(BiomeStorage biomeStorage) {
         this.biomeStorage = new BiomeStorage(BukkitAdapter_1_16_1.getBiomeArray(biomeStorage).clone());
     }
@@ -106,8 +122,18 @@ public class BukkitGetBlocks_1_16_1_Copy extends BukkitGetBlocks_1_16_1 {
         return base != null ? BukkitAdapter.adapt(CraftBlock.biomeBaseToBiome(base)) : null;
     }
 
-    protected void storeSection(int layer) {
-        blocks[layer] = update(layer, null).clone();
+    @Override
+    public boolean trim(boolean aggressive, int layer) {
+        return false;
+    }
+
+    @Override
+    public IBlocks reset() {
+        return null;
+    }
+
+    protected void storeSection(int layer, char[] data) {
+        blocks[layer] = data;
     }
 
     @Override
@@ -116,15 +142,50 @@ public class BukkitGetBlocks_1_16_1_Copy extends BukkitGetBlocks_1_16_1 {
         return state.toBaseBlock(this, x, y, z);
     }
 
+    @Override
+    public boolean hasSection(@Range(from = 0, to = 15) int layer) {
+        return blocks[layer] != null;
+    }
+
+    @Override
+    public char[] load(int layer) {
+        return blocks[layer];
+    }
+
     @Override
     public BlockState getBlock(int x, int y, int z) {
         return BlockTypesCache.states[get(x, y, z)];
     }
 
     @Override
+    public int getSkyLight(int x, int y, int z) {
+        return 0;
+    }
+
+    @Override
+    public int getEmmittedLight(int x, int y, int z) {
+        return 0;
+    }
+
+    @Override
+    public int[] getHeightMap(HeightMapType type) {
+        return new int[0];
+    }
+
+    @Override
+    public <T extends Future<T>> T call(IChunkSet set, Runnable finalize) {
+        return null;
+    }
+
     public char get(int x, int y, int z) {
         final int layer = y >> 4;
         final int index = (y & 15) << 8 | z << 4 | x;
         return blocks[layer][index];
     }
+
+
+    @Override
+    public boolean trim(boolean aggressive) {
+        return false;
+    }
 }

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_1/FAWEWorldNativeAccess_1_16.java

@@ -59,7 +59,7 @@ public class FAWEWorldNativeAccess_1_16 implements WorldNativeAccess<Chunk, IBlo
 
     @Override
     public IBlockData toNative(BlockState state) {
-        int stateId = BlockStateIdAccess.getBlockStateId(state);
+        int stateId = adapter.ordinalToIbdID(state.getOrdinalChar());
         return BlockStateIdAccess.isValidInternalId(stateId)
                 ? Block.getByCombinedId(stateId)
                 : ((CraftBlockData) BukkitAdapter.adapt(state)).getState();
@@ -73,7 +73,8 @@ public class FAWEWorldNativeAccess_1_16 implements WorldNativeAccess<Chunk, IBlo
     @Nullable
     @Override
     public IBlockData setBlockState(Chunk chunk, BlockPosition position, IBlockData state) {
-        return chunk.setType(position, state, false);
+        return chunk.setType(position, state,
+            this.sideEffectSet != null && this.sideEffectSet.shouldApply(SideEffect.UPDATE));
     }
 
     @Override
@@ -167,9 +168,4 @@ public class FAWEWorldNativeAccess_1_16 implements WorldNativeAccess<Chunk, IBlo
     public void onBlockStateChange(BlockPosition pos, IBlockData oldState, IBlockData newState) {
         getWorld().a(pos, oldState, newState);
     }
-
-    @Override
-    public <B extends BlockStateHolder<B>> boolean setBlock(BlockVector3 position, B block, SideEffectSet sideEffects) throws WorldEditException {
-        return this.adapter.setBlock(this.getChunk(position.getBlockX() >> 4, position.getBlockZ() >> 4).bukkitChunk, position.getBlockX(), position.getBlockY(), position.getBlockZ(), block, sideEffectSet.shouldApply(SideEffect.LIGHTING));
-    }
 }

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_1/nbt/LazyCompoundTag_1_16_1.java

@@ -12,15 +12,18 @@ import net.minecraft.server.v1_16_R1.NBTTagList;
 
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.function.Supplier;
 
 public class LazyCompoundTag_1_16_1 extends CompoundTag {
+
     private final Supplier<NBTTagCompound> nmsTag;
+    private CompoundTag cachedValue;
 
     public LazyCompoundTag_1_16_1(Supplier<NBTTagCompound> tag) {
-        super(null);
+        super(new HashMap<>());
         this.nmsTag = tag;
     }
 
@@ -34,12 +37,10 @@ public class LazyCompoundTag_1_16_1 extends CompoundTag {
 
     @Override
     public Map<String, Tag> getValue() {
-        Map<String, Tag> value = super.getValue();
-        if (value == null) {
-            Tag tag = WorldEditPlugin.getInstance().getBukkitImplAdapter().toNative(nmsTag.get());
-            setValue(((CompoundTag) tag).getValue());
+        if (cachedValue == null) {
+            cachedValue = (CompoundTag) WorldEditPlugin.getInstance().getBukkitImplAdapter().toNative(nmsTag.get());
         }
-        return super.getValue();
+        return cachedValue.getValue();
     }
 
     public boolean containsKey(String key) {

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_2/BukkitAdapter_1_16_2.java

@@ -199,7 +199,6 @@ public final class BukkitAdapter_1_16_2 extends NMSAdapter {
             return;
         }
         if (playerChunk.hasBeenLoaded()) {
-            TaskManager.IMP.sync(() -> {
             ChunkCoordIntPair chunkCoordIntPair = new ChunkCoordIntPair(chunkX, chunkZ);
             Optional<Chunk> optional = ((Either) playerChunk.a().getNow(PlayerChunk.UNLOADED_CHUNK)).left();
             if (optional.isPresent()) {
@@ -209,7 +208,8 @@ public final class BukkitAdapter_1_16_2 extends NMSAdapter {
                 });
 
                 if (lighting) {
-                        boolean trustEdges = true; //This needs to be true otherwise Minecraft will update lighting from/at the chunk edges (bad)
+                    //This needs to be true otherwise Minecraft will update lighting from/at the chunk edges (bad)
+                    boolean trustEdges = true;
                     PacketPlayOutLightUpdate packet = new PacketPlayOutLightUpdate(chunkCoordIntPair, nmsWorld.getChunkProvider().getLightEngine(), trustEdges);
                     playerChunk.players.a(chunkCoordIntPair, false).forEach(p -> {
                         p.playerConnection.sendPacket(packet);
@@ -220,7 +220,7 @@ public final class BukkitAdapter_1_16_2 extends NMSAdapter {
                 PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<?> objects =
                     nmsWorld.getChunkProvider().playerChunkMap.playerViewDistanceNoTickMap.getObjectsInRange(chunkX, chunkZ);
                 if (objects == null) {
-                        return null;
+                    return;
                 }
                 for (Object obj : objects.getBackingSet()) {
                     if (obj == null) {
@@ -233,8 +233,8 @@ public final class BukkitAdapter_1_16_2 extends NMSAdapter {
                         p.playerConnection.sendPacket(chunkpacket);
 
                         if (lighting) {
-                                boolean trustEdges =
-                                    true; //This needs to be true otherwise Minecraft will update lighting from/at the chunk edges (bad)
+                            //This needs to be true otherwise Minecraft will update lighting from/at the chunk edges (bad)
+                            boolean trustEdges = true;
                             PacketPlayOutLightUpdate packet =
                                 new PacketPlayOutLightUpdate(chunkCoordIntPair, nmsWorld.getChunkProvider().getLightEngine(), trustEdges);
                             p.playerConnection.sendPacket(packet);
@@ -242,8 +242,6 @@ public final class BukkitAdapter_1_16_2 extends NMSAdapter {
                     }
                 }
             }
-                return null;
-            });
         }
     }
 

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_2/BukkitGetBlocks_1_16_2.java

@@ -4,7 +4,6 @@ import com.boydti.fawe.Fawe;
 import com.boydti.fawe.FaweCache;
 import com.boydti.fawe.beta.IChunkGet;
 import com.boydti.fawe.beta.IChunkSet;
-import com.boydti.fawe.beta.implementation.blocks.CharBlocks;
 import com.boydti.fawe.beta.implementation.blocks.CharGetBlocks;
 import com.boydti.fawe.beta.implementation.lighting.HeightMapType;
 import com.boydti.fawe.beta.implementation.queue.QueueHandler;
@@ -91,6 +90,7 @@ public class BukkitGetBlocks_1_16_2 extends CharGetBlocks {
     public NibbleArray[] skyLight = new NibbleArray[16];
     private boolean createCopy = false;
     private BukkitGetBlocks_1_16_2_Copy copy = null;
+    private boolean forceLoadSections = true;
 
     public BukkitGetBlocks_1_16_2(World world, int chunkX, int chunkZ) {
         this(((CraftWorld) world).getHandle(), chunkX, chunkZ);
@@ -319,7 +319,8 @@ public class BukkitGetBlocks_1_16_2 extends CharGetBlocks {
 
     @Override
     public <T extends Future<T>> T call(IChunkSet set, Runnable finalizer) {
-        copy = createCopy ? new BukkitGetBlocks_1_16_2_Copy(world, getChunkX(), getChunkZ()) : null;
+        forceLoadSections = false;
+        copy = createCopy ? new BukkitGetBlocks_1_16_2_Copy(world) : null;
         try {
             WorldServer nmsWorld = world;
             Chunk nmsChunk = ensureLoaded(nmsWorld, chunkX, chunkZ);
@@ -360,13 +361,14 @@ public class BukkitGetBlocks_1_16_2 extends CharGetBlocks {
                     if (!set.hasSection(layer)) {
                         continue;
                     }
-                    if (createCopy) {
-                        copy.storeSection(layer);
-                    }
 
                     bitMask |= 1 << layer;
 
-                    char[] setArr = set.load(layer);
+                    char[] setArr = set.load(layer).clone();
+                    if (createCopy) {
+                        copy.storeSection(layer, load(layer).clone());
+                    }
+
                     ChunkSection newSection;
                     ChunkSection existingSection = sections[layer];
                     if (existingSection == null) {
@@ -395,7 +397,7 @@ public class BukkitGetBlocks_1_16_2 extends CharGetBlocks {
                                 this.nmsChunk = nmsChunk;
                                 this.sections = null;
                                 this.reset();
-                            } else if (existingSection != getSections()[layer]) {
+                            } else if (existingSection != getSections(false)[layer]) {
                                 this.sections[layer] = existingSection;
                                 this.reset();
                             } else if (!Arrays.equals(update(layer, new char[4096]), load(layer))) {
@@ -408,7 +410,6 @@ public class BukkitGetBlocks_1_16_2 extends CharGetBlocks {
                             if (!BukkitAdapter_1_16_2
                                 .setSectionAtomic(sections, existingSection, newSection, layer)) {
                                 log.error("Failed to set chunk section:" + chunkX + "," + chunkZ + " layer: " + layer);
-                                continue;
                             } else {
                                 updateGet(this, nmsChunk, sections, newSection, setArr, layer);
                             }
@@ -475,9 +476,7 @@ public class BukkitGetBlocks_1_16_2 extends CharGetBlocks {
 
                 Set<UUID> entityRemoves = set.getEntityRemoves();
                 if (entityRemoves != null && !entityRemoves.isEmpty()) {
-                    if (syncTasks == null) {
                     syncTasks = new Runnable[3];
-                    }
 
                     syncTasks[2] = () -> {
                         final List<Entity>[] entities = nmsChunk.getEntitySlices();
@@ -637,12 +636,14 @@ public class BukkitGetBlocks_1_16_2 extends CharGetBlocks {
         } catch (Throwable e) {
             e.printStackTrace();
             return null;
+        } finally {
+            forceLoadSections = true;
         }
     }
 
     @Override
     public synchronized char[] update(int layer, char[] data) {
-        ChunkSection section = getSections()[layer];
+        ChunkSection section = getSections(true)[layer];
         // Section is null, return empty array
         if (section == null) {
             data = new char[4096];
@@ -757,7 +758,10 @@ public class BukkitGetBlocks_1_16_2 extends CharGetBlocks {
         }
     }
 
-    public ChunkSection[] getSections() {
+    public ChunkSection[] getSections(boolean force) {
+        if (force && forceLoadSections) {
+            return sections = getChunk().getSections().clone();
+        }
         ChunkSection[] tmp = sections;
         if (tmp == null) {
             synchronized (this) {
@@ -809,7 +813,7 @@ public class BukkitGetBlocks_1_16_2 extends CharGetBlocks {
 
     @Override
     public boolean hasSection(int layer) {
-        return getSections()[layer] != null;
+        return getSections(false)[layer] != null;
     }
 
     @Override
@@ -822,10 +826,10 @@ public class BukkitGetBlocks_1_16_2 extends CharGetBlocks {
             return super.trim(true);
         } else {
             for (int i = 0; i < 16; i++) {
-                if (!hasSection(i) || super.sections[i] == CharBlocks.EMPTY) {
+                if (!hasSection(i) || !super.sections[i].isFull()) {
                     continue;
                 }
-                ChunkSection existing = getSections()[i];
+                ChunkSection existing = getSections(true)[i];
                 try {
                     final DataPaletteBlock<IBlockData> blocksExisting = existing.getBlocks();
 

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_2/BukkitGetBlocks_1_16_2_Copy.java

@@ -2,6 +2,10 @@ package com.boydti.fawe.bukkit.adapter.mc1_16_2;
 
 
 import com.boydti.fawe.FaweCache;
+import com.boydti.fawe.beta.IBlocks;
+import com.boydti.fawe.beta.IChunkGet;
+import com.boydti.fawe.beta.IChunkSet;
+import com.boydti.fawe.beta.implementation.lighting.HeightMapType;
 import com.boydti.fawe.bukkit.adapter.mc1_16_2.nbt.LazyCompoundTag_1_16_2;
 import com.google.common.base.Suppliers;
 import com.sk89q.jnbt.CompoundTag;
@@ -22,22 +26,25 @@ import net.minecraft.server.v1_16_R2.TileEntity;
 import net.minecraft.server.v1_16_R2.WorldServer;
 import org.bukkit.craftbukkit.v1_16_R2.block.CraftBlock;
 import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.Range;
 
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
+import java.util.concurrent.Future;
 
-public class BukkitGetBlocks_1_16_2_Copy extends BukkitGetBlocks_1_16_2 {
+public class BukkitGetBlocks_1_16_2_Copy implements IChunkGet {
 
     private final Map<BlockVector3, CompoundTag> tiles = new HashMap<>();
     private final Set<CompoundTag> entities = new HashSet<>();
     private BiomeStorage biomeStorage;
-    private final char[][] blocks = new char[16][4096];
+    private final char[][] blocks = new char[16][];
+    private final WorldServer world;
 
-    protected BukkitGetBlocks_1_16_2_Copy(WorldServer world, int X, int Z) {
-        super(world, X, Z);
+    protected BukkitGetBlocks_1_16_2_Copy(WorldServer world) {
+        this.world = world;
     }
 
     protected void storeTile(TileEntity tile) {
@@ -88,6 +95,16 @@ public class BukkitGetBlocks_1_16_2_Copy extends BukkitGetBlocks_1_16_2 {
         return null;
     }
 
+    @Override
+    public void setCreateCopy(boolean createCopy) {
+
+    }
+
+    @Override
+    public boolean isCreateCopy() {
+        return false;
+    }
+
     protected void storeBiomes(BiomeStorage biomeStorage) {
         this.biomeStorage = new BiomeStorage(biomeStorage.g, BukkitAdapter_1_16_2.getBiomeArray(biomeStorage).clone());
     }
@@ -106,8 +123,18 @@ public class BukkitGetBlocks_1_16_2_Copy extends BukkitGetBlocks_1_16_2 {
         return base != null ? BukkitAdapter.adapt(CraftBlock.biomeBaseToBiome(world.r().b(IRegistry.ay), base)) : null;
     }
 
-    protected void storeSection(int layer) {
-        blocks[layer] = update(layer, null).clone();
+    @Override
+    public boolean trim(boolean aggressive, int layer) {
+        return false;
+    }
+
+    @Override
+    public IBlocks reset() {
+        return null;
+    }
+
+    protected void storeSection(int layer, char[] data) {
+        blocks[layer] = data;
     }
 
     @Override
@@ -116,15 +143,50 @@ public class BukkitGetBlocks_1_16_2_Copy extends BukkitGetBlocks_1_16_2 {
         return state.toBaseBlock(this, x, y, z);
     }
 
+    @Override
+    public boolean hasSection(@Range(from = 0, to = 15) int layer) {
+        return blocks[layer] != null;
+    }
+
+    @Override
+    public char[] load(int layer) {
+        return blocks[layer];
+    }
+
     @Override
     public BlockState getBlock(int x, int y, int z) {
         return BlockTypesCache.states[get(x, y, z)];
     }
 
     @Override
+    public int getSkyLight(int x, int y, int z) {
+        return 0;
+    }
+
+    @Override
+    public int getEmmittedLight(int x, int y, int z) {
+        return 0;
+    }
+
+    @Override
+    public int[] getHeightMap(HeightMapType type) {
+        return new int[0];
+    }
+
+    @Override
+    public <T extends Future<T>> T call(IChunkSet set, Runnable finalize) {
+        return null;
+    }
+
     public char get(int x, int y, int z) {
         final int layer = y >> 4;
         final int index = (y & 15) << 8 | z << 4 | x;
         return blocks[layer][index];
     }
+
+
+    @Override
+    public boolean trim(boolean aggressive) {
+        return false;
+    }
 }

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_2/FAWEWorldNativeAccess_1_16.java

@@ -59,7 +59,7 @@ public class FAWEWorldNativeAccess_1_16 implements WorldNativeAccess<Chunk, IBlo
 
     @Override
     public IBlockData toNative(BlockState state) {
-        int stateId = BlockStateIdAccess.getBlockStateId(state);
+        int stateId = adapter.ordinalToIbdID(state.getOrdinalChar());
         return BlockStateIdAccess.isValidInternalId(stateId)
                 ? Block.getByCombinedId(stateId)
                 : ((CraftBlockData) BukkitAdapter.adapt(state)).getState();
@@ -73,7 +73,8 @@ public class FAWEWorldNativeAccess_1_16 implements WorldNativeAccess<Chunk, IBlo
     @Nullable
     @Override
     public IBlockData setBlockState(Chunk chunk, BlockPosition position, IBlockData state) {
-        return chunk.setType(position, state, false);
+        return chunk.setType(position, state,
+            this.sideEffectSet != null && this.sideEffectSet.shouldApply(SideEffect.UPDATE));
     }
 
     @Override
@@ -167,9 +168,4 @@ public class FAWEWorldNativeAccess_1_16 implements WorldNativeAccess<Chunk, IBlo
     public void onBlockStateChange(BlockPosition pos, IBlockData oldState, IBlockData newState) {
         getWorld().a(pos, oldState, newState);
     }
-
-    @Override
-    public <B extends BlockStateHolder<B>> boolean setBlock(BlockVector3 position, B block, SideEffectSet sideEffects) throws WorldEditException {
-        return this.adapter.setBlock(this.getChunk(position.getBlockX() >> 4, position.getBlockZ() >> 4).bukkitChunk, position.getBlockX(), position.getBlockY(), position.getBlockZ(), block, sideEffectSet.shouldApply(SideEffect.LIGHTING));
-    }
 }

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_2/nbt/LazyCompoundTag_1_16_2.java

@@ -12,15 +12,18 @@ import net.minecraft.server.v1_16_R2.NBTTagList;
 
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.function.Supplier;
 
 public class LazyCompoundTag_1_16_2 extends CompoundTag {
+
     private final Supplier<NBTTagCompound> nmsTag;
+    private CompoundTag cachedValue;
 
     public LazyCompoundTag_1_16_2(Supplier<NBTTagCompound> tag) {
-        super(null);
+        super(new HashMap<>());
         this.nmsTag = tag;
     }
 
@@ -34,12 +37,10 @@ public class LazyCompoundTag_1_16_2 extends CompoundTag {
 
     @Override
     public Map<String, Tag> getValue() {
-        Map<String, Tag> value = super.getValue();
-        if (value == null) {
-            Tag tag = WorldEditPlugin.getInstance().getBukkitImplAdapter().toNative(nmsTag.get());
-            setValue(((CompoundTag) tag).getValue());
+        if (cachedValue == null) {
+            cachedValue = (CompoundTag) WorldEditPlugin.getInstance().getBukkitImplAdapter().toNative(nmsTag.get());
         }
-        return super.getValue();
+        return cachedValue.getValue();
     }
 
     public boolean containsKey(String key) {

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_4/BukkitAdapter_1_16_4.java

@@ -199,7 +199,6 @@ public final class BukkitAdapter_1_16_4 extends NMSAdapter {
             return;
         }
         if (playerChunk.hasBeenLoaded()) {
-            TaskManager.IMP.sync(() -> {
             ChunkCoordIntPair chunkCoordIntPair = new ChunkCoordIntPair(chunkX, chunkZ);
             Optional<Chunk> optional = ((Either) playerChunk.a().getNow(PlayerChunk.UNLOADED_CHUNK)).left();
             if (optional.isPresent()) {
@@ -209,8 +208,11 @@ public final class BukkitAdapter_1_16_4 extends NMSAdapter {
                 });
 
                 if (lighting) {
-                        boolean trustEdges = true; //This needs to be true otherwise Minecraft will update lighting from/at the chunk edges (bad)
-                        PacketPlayOutLightUpdate packet = new PacketPlayOutLightUpdate(chunkCoordIntPair, nmsWorld.getChunkProvider().getLightEngine(), trustEdges);
+                    //This needs to be true otherwise Minecraft will update lighting from/at the chunk edges (bad)
+                    boolean trustEdges = true;
+                    PacketPlayOutLightUpdate packet =
+                        new PacketPlayOutLightUpdate(chunkCoordIntPair, nmsWorld.getChunkProvider().getLightEngine(),
+                            trustEdges);
                     playerChunk.players.a(chunkCoordIntPair, false).forEach(p -> {
                         p.playerConnection.sendPacket(packet);
                     });
@@ -218,9 +220,10 @@ public final class BukkitAdapter_1_16_4 extends NMSAdapter {
             } else if (PaperLib.isPaper()) {
                 //Require generic here to work with multiple dependencies trying to take control.
                 PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<?> objects =
-                        nmsWorld.getChunkProvider().playerChunkMap.playerViewDistanceNoTickMap.getObjectsInRange(chunkX, chunkZ);
+                    nmsWorld.getChunkProvider().playerChunkMap.playerViewDistanceNoTickMap
+                        .getObjectsInRange(chunkX, chunkZ);
                 if (objects == null) {
-                        return null;
+                    return;
                 }
                 for (Object obj : objects.getBackingSet()) {
                     if (obj == null) {
@@ -233,17 +236,15 @@ public final class BukkitAdapter_1_16_4 extends NMSAdapter {
                         p.playerConnection.sendPacket(chunkpacket);
 
                         if (lighting) {
-                                boolean trustEdges =
-                                    true; //This needs to be true otherwise Minecraft will update lighting from/at the chunk edges (bad)
-                                PacketPlayOutLightUpdate packet =
-                                    new PacketPlayOutLightUpdate(chunkCoordIntPair, nmsWorld.getChunkProvider().getLightEngine(), trustEdges);
+                            //This needs to be true otherwise Minecraft will update lighting from/at the chunk edges (bad)
+                            boolean trustEdges = true;
+                            PacketPlayOutLightUpdate packet = new PacketPlayOutLightUpdate(chunkCoordIntPair,
+                                nmsWorld.getChunkProvider().getLightEngine(), trustEdges);
                             p.playerConnection.sendPacket(packet);
                         }
                     }
                 }
             }
-                return null;
-            });
         }
     }
 

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_4/BukkitGetBlocks_1_16_4.java

@@ -4,7 +4,6 @@ import com.boydti.fawe.Fawe;
 import com.boydti.fawe.FaweCache;
 import com.boydti.fawe.beta.IChunkGet;
 import com.boydti.fawe.beta.IChunkSet;
-import com.boydti.fawe.beta.implementation.blocks.CharBlocks;
 import com.boydti.fawe.beta.implementation.blocks.CharGetBlocks;
 import com.boydti.fawe.beta.implementation.lighting.HeightMapType;
 import com.boydti.fawe.beta.implementation.queue.QueueHandler;
@@ -91,6 +90,7 @@ public class BukkitGetBlocks_1_16_4 extends CharGetBlocks {
     public NibbleArray[] skyLight = new NibbleArray[16];
     private boolean createCopy = false;
     private BukkitGetBlocks_1_16_4_Copy copy = null;
+    private boolean forceLoadSections = true;
 
     public BukkitGetBlocks_1_16_4(World world, int chunkX, int chunkZ) {
         this(((CraftWorld) world).getHandle(), chunkX, chunkZ);
@@ -319,7 +319,8 @@ public class BukkitGetBlocks_1_16_4 extends CharGetBlocks {
 
     @Override
     public <T extends Future<T>> T call(IChunkSet set, Runnable finalizer) {
-        copy = createCopy ? new BukkitGetBlocks_1_16_4_Copy(world, getChunkX(), getChunkZ()) : null;
+        forceLoadSections = false;
+        copy = createCopy ? new BukkitGetBlocks_1_16_4_Copy(world) : null;
         try {
             WorldServer nmsWorld = world;
             Chunk nmsChunk = ensureLoaded(nmsWorld, chunkX, chunkZ);
@@ -360,13 +361,14 @@ public class BukkitGetBlocks_1_16_4 extends CharGetBlocks {
                     if (!set.hasSection(layer)) {
                         continue;
                     }
-                    if (createCopy) {
-                        copy.storeSection(layer);
-                    }
 
                     bitMask |= 1 << layer;
 
-                    char[] setArr = set.load(layer);
+                    char[] setArr = set.load(layer).clone();
+                    if (createCopy) {
+                        copy.storeSection(layer, load(layer).clone());
+                    }
+
                     ChunkSection newSection;
                     ChunkSection existingSection = sections[layer];
                     if (existingSection == null) {
@@ -395,7 +397,7 @@ public class BukkitGetBlocks_1_16_4 extends CharGetBlocks {
                                 this.nmsChunk = nmsChunk;
                                 this.sections = null;
                                 this.reset();
-                            } else if (existingSection != getSections()[layer]) {
+                            } else if (existingSection != getSections(false)[layer]) {
                                 this.sections[layer] = existingSection;
                                 this.reset();
                             } else if (!Arrays.equals(update(layer, new char[4096]), load(layer))) {
@@ -408,7 +410,6 @@ public class BukkitGetBlocks_1_16_4 extends CharGetBlocks {
                             if (!BukkitAdapter_1_16_4
                                 .setSectionAtomic(sections, existingSection, newSection, layer)) {
                                 log.error("Failed to set chunk section:" + chunkX + "," + chunkZ + " layer: " + layer);
-                                continue;
                             } else {
                                 updateGet(this, nmsChunk, sections, newSection, setArr, layer);
                             }
@@ -475,9 +476,7 @@ public class BukkitGetBlocks_1_16_4 extends CharGetBlocks {
 
                 Set<UUID> entityRemoves = set.getEntityRemoves();
                 if (entityRemoves != null && !entityRemoves.isEmpty()) {
-                    if (syncTasks == null) {
                     syncTasks = new Runnable[3];
-                    }
 
                     syncTasks[2] = () -> {
                         final List<Entity>[] entities = nmsChunk.getEntitySlices();
@@ -637,12 +636,14 @@ public class BukkitGetBlocks_1_16_4 extends CharGetBlocks {
         } catch (Throwable e) {
             e.printStackTrace();
             return null;
+        } finally {
+            forceLoadSections = true;
         }
     }
 
     @Override
     public synchronized char[] update(int layer, char[] data) {
-        ChunkSection section = getSections()[layer];
+        ChunkSection section = getSections(true)[layer];
         // Section is null, return empty array
         if (section == null) {
             data = new char[4096];
@@ -757,7 +758,10 @@ public class BukkitGetBlocks_1_16_4 extends CharGetBlocks {
         }
     }
 
-    public ChunkSection[] getSections() {
+    public ChunkSection[] getSections(boolean force) {
+        if (force && forceLoadSections) {
+            return sections = getChunk().getSections().clone();
+        }
         ChunkSection[] tmp = sections;
         if (tmp == null) {
             synchronized (this) {
@@ -809,7 +813,7 @@ public class BukkitGetBlocks_1_16_4 extends CharGetBlocks {
 
     @Override
     public boolean hasSection(int layer) {
-        return getSections()[layer] != null;
+        return getSections(false)[layer] != null;
     }
 
     @Override
@@ -822,10 +826,10 @@ public class BukkitGetBlocks_1_16_4 extends CharGetBlocks {
             return super.trim(true);
         } else {
             for (int i = 0; i < 16; i++) {
-                if (!hasSection(i) || super.sections[i] == CharBlocks.EMPTY) {
+                if (!hasSection(i) || !super.sections[i].isFull()) {
                     continue;
                 }
-                ChunkSection existing = getSections()[i];
+                ChunkSection existing = getSections(true)[i];
                 try {
                     final DataPaletteBlock<IBlockData> blocksExisting = existing.getBlocks();
 

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_4/BukkitGetBlocks_1_16_4_Copy.java

@@ -2,6 +2,10 @@ package com.boydti.fawe.bukkit.adapter.mc1_16_4;
 
 
 import com.boydti.fawe.FaweCache;
+import com.boydti.fawe.beta.IBlocks;
+import com.boydti.fawe.beta.IChunkGet;
+import com.boydti.fawe.beta.IChunkSet;
+import com.boydti.fawe.beta.implementation.lighting.HeightMapType;
 import com.boydti.fawe.bukkit.adapter.mc1_16_4.nbt.LazyCompoundTag_1_16_4;
 import com.google.common.base.Suppliers;
 import com.sk89q.jnbt.CompoundTag;
@@ -22,22 +26,25 @@ import net.minecraft.server.v1_16_R3.TileEntity;
 import net.minecraft.server.v1_16_R3.WorldServer;
 import org.bukkit.craftbukkit.v1_16_R3.block.CraftBlock;
 import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.Range;
 
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
+import java.util.concurrent.Future;
 
-public class BukkitGetBlocks_1_16_4_Copy extends BukkitGetBlocks_1_16_4 {
+public class BukkitGetBlocks_1_16_4_Copy implements IChunkGet {
 
     private final Map<BlockVector3, CompoundTag> tiles = new HashMap<>();
     private final Set<CompoundTag> entities = new HashSet<>();
     private BiomeStorage biomeStorage;
-    private final char[][] blocks = new char[16][4096];
+    private final char[][] blocks = new char[16][];
+    private final WorldServer world;
 
-    protected BukkitGetBlocks_1_16_4_Copy(WorldServer world, int X, int Z) {
-        super(world, X, Z);
+    protected BukkitGetBlocks_1_16_4_Copy(WorldServer world) {
+        this.world = world;
     }
 
     protected void storeTile(TileEntity tile) {
@@ -88,6 +95,16 @@ public class BukkitGetBlocks_1_16_4_Copy extends BukkitGetBlocks_1_16_4 {
         return null;
     }
 
+    @Override
+    public void setCreateCopy(boolean createCopy) {
+
+    }
+
+    @Override
+    public boolean isCreateCopy() {
+        return false;
+    }
+
     protected void storeBiomes(BiomeStorage biomeStorage) {
         this.biomeStorage = new BiomeStorage(biomeStorage.g, BukkitAdapter_1_16_4.getBiomeArray(biomeStorage).clone());
     }
@@ -106,8 +123,18 @@ public class BukkitGetBlocks_1_16_4_Copy extends BukkitGetBlocks_1_16_4 {
         return base != null ? BukkitAdapter.adapt(CraftBlock.biomeBaseToBiome(world.r().b(IRegistry.ay), base)) : null;
     }
 
-    protected void storeSection(int layer) {
-        blocks[layer] = update(layer, null).clone();
+    @Override
+    public boolean trim(boolean aggressive, int layer) {
+        return false;
+    }
+
+    @Override
+    public IBlocks reset() {
+        return null;
+    }
+
+    protected void storeSection(int layer, char[] data) {
+        blocks[layer] = data;
     }
 
     @Override
@@ -116,15 +143,50 @@ public class BukkitGetBlocks_1_16_4_Copy extends BukkitGetBlocks_1_16_4 {
         return state.toBaseBlock(this, x, y, z);
     }
 
+    @Override
+    public boolean hasSection(@Range(from = 0, to = 15) int layer) {
+        return blocks[layer] != null;
+    }
+
+    @Override
+    public char[] load(int layer) {
+        return blocks[layer];
+    }
+
     @Override
     public BlockState getBlock(int x, int y, int z) {
         return BlockTypesCache.states[get(x, y, z)];
     }
 
     @Override
+    public int getSkyLight(int x, int y, int z) {
+        return 0;
+    }
+
+    @Override
+    public int getEmmittedLight(int x, int y, int z) {
+        return 0;
+    }
+
+    @Override
+    public int[] getHeightMap(HeightMapType type) {
+        return new int[0];
+    }
+
+    @Override
+    public <T extends Future<T>> T call(IChunkSet set, Runnable finalize) {
+        return null;
+    }
+
     public char get(int x, int y, int z) {
         final int layer = y >> 4;
         final int index = (y & 15) << 8 | z << 4 | x;
         return blocks[layer][index];
     }
+
+
+    @Override
+    public boolean trim(boolean aggressive) {
+        return false;
+    }
 }

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_4/FAWEWorldNativeAccess_1_16.java

@@ -60,7 +60,7 @@ public class FAWEWorldNativeAccess_1_16 implements WorldNativeAccess<Chunk, IBlo
 
     @Override
     public IBlockData toNative(BlockState state) {
-        int stateId = BlockStateIdAccess.getBlockStateId(state);
+        int stateId = adapter.ordinalToIbdID(state.getOrdinalChar());
         return BlockStateIdAccess.isValidInternalId(stateId)
                 ? Block.getByCombinedId(stateId)
                 : ((CraftBlockData) BukkitAdapter.adapt(state)).getState();
@@ -74,7 +74,8 @@ public class FAWEWorldNativeAccess_1_16 implements WorldNativeAccess<Chunk, IBlo
     @Nullable
     @Override
     public IBlockData setBlockState(Chunk chunk, BlockPosition position, IBlockData state) {
-        return chunk.setType(position, state, false);
+        return chunk.setType(position, state,
+            this.sideEffectSet != null && this.sideEffectSet.shouldApply(SideEffect.UPDATE));
     }
 
     @Override
@@ -168,9 +169,4 @@ public class FAWEWorldNativeAccess_1_16 implements WorldNativeAccess<Chunk, IBlo
     public void onBlockStateChange(BlockPosition pos, IBlockData oldState, IBlockData newState) {
         getWorld().a(pos, oldState, newState);
     }
-
-    @Override
-    public <B extends BlockStateHolder<B>> boolean setBlock(BlockVector3 position, B block, SideEffectSet sideEffects) throws WorldEditException {
-        return this.adapter.setBlock(this.getChunk(position.getBlockX() >> 4, position.getBlockZ() >> 4).bukkitChunk, position.getBlockX(), position.getBlockY(), position.getBlockZ(), block, sideEffectSet.shouldApply(SideEffect.LIGHTING));
-    }
 }

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_4/nbt/LazyCompoundTag_1_16_4.java

@@ -12,15 +12,18 @@ import net.minecraft.server.v1_16_R3.NBTTagList;
 
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.function.Supplier;
 
 public class LazyCompoundTag_1_16_4 extends CompoundTag {
+
     private final Supplier<NBTTagCompound> nmsTag;
+    private CompoundTag cachedValue;
 
     public LazyCompoundTag_1_16_4(Supplier<NBTTagCompound> tag) {
-        super(null);
+        super(new HashMap<>());
         this.nmsTag = tag;
     }
 
@@ -34,12 +37,10 @@ public class LazyCompoundTag_1_16_4 extends CompoundTag {
 
     @Override
     public Map<String, Tag> getValue() {
-        Map<String, Tag> value = super.getValue();
-        if (value == null) {
-            Tag tag = WorldEditPlugin.getInstance().getBukkitImplAdapter().toNative(nmsTag.get());
-            setValue(((CompoundTag) tag).getValue());
+        if (cachedValue == null) {
+            cachedValue = (CompoundTag) WorldEditPlugin.getInstance().getBukkitImplAdapter().toNative(nmsTag.get());
         }
-        return super.getValue();
+        return cachedValue.getValue();
     }
 
     public boolean containsKey(String key) {

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/regions/plotsquared/FaweSchematicHandler.java

@@ -1,6 +1,5 @@
 package com.boydti.fawe.bukkit.regions.plotsquared;
 
-import com.boydti.fawe.FaweAPI;
 import com.boydti.fawe.FaweCache;
 import com.boydti.fawe.object.clipboard.ReadOnlyClipboard;
 import com.boydti.fawe.object.io.PGZIPOutputStream;
@@ -9,36 +8,46 @@ import com.boydti.fawe.util.IOUtil;
 import com.boydti.fawe.util.TaskManager;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.location.Location;
+import com.plotsquared.core.plot.schematic.Schematic;
 import com.plotsquared.core.queue.LocalBlockQueue;
 import com.plotsquared.core.util.MainUtil;
 import com.plotsquared.core.util.SchematicHandler;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.jnbt.CompressedCompoundTag;
-import com.sk89q.jnbt.CompressedSchematicTag;
+import com.sk89q.jnbt.NBTInputStream;
 import com.sk89q.jnbt.NBTOutputStream;
 import com.sk89q.jnbt.Tag;
+import com.sk89q.jnbt.fawe.CompressedSchematicTag;
 import com.sk89q.worldedit.EditSession;
 import com.sk89q.worldedit.bukkit.BukkitAdapter;
 import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
 import com.sk89q.worldedit.extent.clipboard.Clipboard;
 import com.sk89q.worldedit.extent.clipboard.io.BuiltInClipboardFormat;
+import com.sk89q.worldedit.extent.clipboard.io.FastSchematicReader;
 import com.sk89q.worldedit.extent.clipboard.io.FastSchematicWriter;
+import com.sk89q.worldedit.extent.clipboard.io.MCEditSchematicReader;
+import com.sk89q.worldedit.extent.clipboard.io.SpongeSchematicReader;
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.regions.CuboidRegion;
 import com.sk89q.worldedit.world.World;
 import net.jpountz.lz4.LZ4BlockInputStream;
+import org.jetbrains.annotations.NotNull;
 
+import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
+import java.io.EOFException;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.io.InputStream;
 import java.io.OutputStream;
 import java.net.URL;
 import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
+import java.util.zip.GZIPInputStream;
 
 import static org.bukkit.Bukkit.getWorld;
 
@@ -114,16 +123,14 @@ public class FaweSchematicHandler extends SchematicHandler {
             com.plotsquared.core.util.task.TaskManager.runTask(whenDone);
             return;
         }
-        CompoundTag weTag = (CompoundTag) FaweCache.IMP.asTag(tag);
-        if (weTag instanceof CompressedSchematicTag) {
-            Clipboard clipboard = ((CompressedSchematicTag) weTag).getSource();
-            URL url = FaweAPI.upload(clipboard, BuiltInClipboardFormat.SPONGE_SCHEMATIC);
-            whenDone.run(url);
-            return;
-        }
+        final CompoundTag weTag = (CompoundTag) FaweCache.IMP.asTag(tag);
         MainUtil.upload(uuid, file, "schem", new RunnableVal<OutputStream>() {
             @Override
             public void run(OutputStream output) {
+                if (weTag instanceof CompressedSchematicTag) {
+                    Clipboard clipboard = ((CompressedSchematicTag) weTag).getSource();
+                    BuiltInClipboardFormat.SPONGE_SCHEMATIC.write(output, clipboard);
+                }
                 try {
                     try (PGZIPOutputStream gzip = new PGZIPOutputStream(output)) {
                         try (NBTOutputStream nos = new NBTOutputStream(gzip)) {
@@ -137,4 +144,42 @@ public class FaweSchematicHandler extends SchematicHandler {
             }
         }, whenDone);
     }
+
+    @Override
+    public Schematic getSchematic(@NotNull InputStream is) {
+        try {
+            FastSchematicReader schematicReader = new FastSchematicReader(
+                new NBTInputStream(new BufferedInputStream(new GZIPInputStream(new BufferedInputStream(is)))));
+            Clipboard clip = schematicReader.read();
+            return new Schematic(clip);
+        } catch (IOException e) {
+            if (e instanceof EOFException) {
+                e.printStackTrace();
+                return null;
+            }
+            try {
+                SpongeSchematicReader schematicReader =
+                    new SpongeSchematicReader(new NBTInputStream(new GZIPInputStream(is)));
+                Clipboard clip = schematicReader.read();
+                return new Schematic(clip);
+            } catch (IOException e2) {
+                if (e2 instanceof EOFException) {
+                    e.printStackTrace();
+                    return null;
+                }
+                try {
+                    MCEditSchematicReader schematicReader =
+                        new MCEditSchematicReader(new NBTInputStream(new GZIPInputStream(is)));
+                    Clipboard clip = schematicReader.read();
+                    return new Schematic(clip);
+                } catch (IOException e3) {
+                    e.printStackTrace();
+                    PlotSquared.debug(
+                        is.toString() + " | " + is.getClass().getCanonicalName() + " is not in GZIP format : " + e
+                            .getMessage());
+                }
+            }
+        }
+        return null;
+    }
 }

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/regions/plotsquaredv4/FaweSchematicHandler.java

@@ -15,7 +15,7 @@ import com.github.intellectualsites.plotsquared.plot.util.SchematicHandler;
 import com.github.intellectualsites.plotsquared.plot.util.block.LocalBlockQueue;
 import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.jnbt.CompressedCompoundTag;
-import com.sk89q.jnbt.CompressedSchematicTag;
+import com.sk89q.jnbt.fawe.CompressedSchematicTag;
 import com.sk89q.jnbt.NBTOutputStream;
 import com.sk89q.jnbt.Tag;
 import com.sk89q.worldedit.EditSession;
@@ -65,6 +65,7 @@ public class FaweSchematicHandler extends SchematicHandler {
             ReadOnlyClipboard clipboard = ReadOnlyClipboard.of(editSession, region, false, true);
 
             Clipboard holder = new BlockArrayClipboard(region, clipboard);
+
             CompressedSchematicTag tag = new CompressedSchematicTag(holder);
             whenDone.run(tag);
         });

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/wrapper/AsyncBlock.java

@@ -26,8 +26,8 @@ import org.bukkit.plugin.Plugin;
 import org.bukkit.util.BoundingBox;
 import org.bukkit.util.RayTraceResult;
 import org.bukkit.util.Vector;
-import org.jetbrains.annotations.NotNull;
 
+import javax.annotation.Nonnull;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
@@ -70,32 +70,32 @@ public class AsyncBlock implements Block {
         return world.getBlock(x, y, z).getBlockType().getInternalId();
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public AsyncBlock getRelative(int modX, int modY, int modZ) {
         return new AsyncBlock(world, x + modX, y + modY, z + modZ);
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public AsyncBlock getRelative(BlockFace face) {
         return this.getRelative(face.getModX(), face.getModY(), face.getModZ());
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public AsyncBlock getRelative(BlockFace face, int distance) {
         return this.getRelative(face.getModX() * distance, face.getModY() * distance,
             face.getModZ() * distance);
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public Material getType() {
         return getBlockData().getMaterial();
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public BlockData getBlockData() {
         return BukkitAdapter.adapt(world.getBlock(x, y, z));
@@ -141,7 +141,7 @@ public class AsyncBlock implements Block {
         return (byte) 15;
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public AsyncWorld getWorld() {
         return world;
@@ -162,7 +162,7 @@ public class AsyncBlock implements Block {
         return z;
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public Location getLocation() {
         return new Location(world, x, y, z);
@@ -179,14 +179,14 @@ public class AsyncBlock implements Block {
         return loc;
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public AsyncChunk getChunk() {
         return world.getChunkAt(x >> 4, z >> 4);
     }
 
     @Override
-    public void setBlockData(@NotNull BlockData blockData) {
+    public void setBlockData(@Nonnull BlockData blockData) {
         try {
             world.setBlock(x, y, z, BukkitAdapter.adapt(blockData));
         } catch (WorldEditException e) {
@@ -195,12 +195,12 @@ public class AsyncBlock implements Block {
     }
 
     @Override
-    public void setBlockData(@NotNull BlockData blockData, boolean b) {
+    public void setBlockData(@Nonnull BlockData blockData, boolean b) {
         setBlockData(blockData);
     }
 
     @Override
-    public void setType(@NotNull Material type) {
+    public void setType(@Nonnull Material type) {
         try {
             world.setBlock(x, y, z, BukkitAdapter.asBlockType(type).getDefaultState());
         } catch (WorldEditException e) {
@@ -209,12 +209,12 @@ public class AsyncBlock implements Block {
     }
 
     @Override
-    public void setType(@NotNull Material type, boolean applyPhysics) {
+    public void setType(@Nonnull Material type, boolean applyPhysics) {
         setType(type);
     }
 
     @Override
-    public BlockFace getFace(@NotNull Block block) {
+    public BlockFace getFace(@Nonnull Block block) {
         BlockFace[] directions = BlockFace.values();
         for (BlockFace face : directions) {
             if (this.getX() + face.getModX() == block.getX()
@@ -226,7 +226,7 @@ public class AsyncBlock implements Block {
         return null;
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public AsyncBlockState getState() {
         BaseBlock state = world.getFullBlock(x, y, z);
@@ -250,19 +250,19 @@ public class AsyncBlock implements Block {
     }
 
     @Override
-    @NotNull
+    @Nonnull
     public AsyncBlockState getState(boolean useSnapshot) {
         return getState();
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public Biome getBiome() {
         return world.getAdapter().adapt(world.getBiomeType(x, y, z));
     }
 
     @Override
-    public void setBiome(@NotNull Biome bio) {
+    public void setBiome(@Nonnull Biome bio) {
         BiomeType biome = world.getAdapter().adapt(bio);
         world.setBiome(x, 0, z, biome);
     }
@@ -278,17 +278,17 @@ public class AsyncBlock implements Block {
     }
 
     @Override
-    public boolean isBlockFacePowered(@NotNull BlockFace face) {
+    public boolean isBlockFacePowered(@Nonnull BlockFace face) {
         return false;
     }
 
     @Override
-    public boolean isBlockFaceIndirectlyPowered(@NotNull BlockFace face) {
+    public boolean isBlockFaceIndirectlyPowered(@Nonnull BlockFace face) {
         return false;
     }
 
     @Override
-    public int getBlockPower(@NotNull BlockFace face) {
+    public int getBlockPower(@Nonnull BlockFace face) {
         return 0;
     }
 
@@ -314,6 +314,21 @@ public class AsyncBlock implements Block {
         return world.getBlock(x, y, z).getMaterial().isLiquid();
     }
 
+    @Override
+    public boolean isBuildable() {
+        return this.getUnsafeBlock().isBuildable();
+    }
+
+    @Override
+    public boolean isBurnable() {
+        return this.getType().isBurnable();
+    }
+
+    @Override
+    public boolean isReplaceable() {
+        return this.getUnsafeBlock().isReplaceable();
+    }
+
     @Override
     public double getTemperature() {
         return this.getWorld().getTemperature(this.getX(), this.getZ());
@@ -324,7 +339,7 @@ public class AsyncBlock implements Block {
         return this.getWorld().getHumidity(this.getX(), this.getZ());
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public PistonMoveReaction getPistonMoveReaction() {
         return PistonMoveReaction.IGNORE;
@@ -341,23 +356,23 @@ public class AsyncBlock implements Block {
     }
 
     @Override
-    public boolean breakNaturally(@NotNull ItemStack tool) {
+    public boolean breakNaturally(@Nonnull ItemStack tool) {
         return TaskManager.IMP.sync(() -> getUnsafeBlock().breakNaturally(tool));
     }
 
-    public boolean breakNaturally(@NotNull ItemStack tool, boolean value) {
+    public boolean breakNaturally(@Nonnull ItemStack tool, boolean value) {
         return TaskManager.IMP.sync(() -> getUnsafeBlock().breakNaturally(tool));
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public Collection<ItemStack> getDrops() {
         return TaskManager.IMP.sync(() -> getUnsafeBlock().getDrops());
     }
 
-    @NotNull
+    @Nonnull
     @Override
-    public Collection<ItemStack> getDrops(@NotNull ItemStack tool) {
+    public Collection<ItemStack> getDrops(@Nonnull ItemStack tool) {
         return TaskManager.IMP.sync(() -> getUnsafeBlock().getDrops(tool));
     }
 
@@ -366,23 +381,23 @@ public class AsyncBlock implements Block {
     }
 
     @Override
-    public void setMetadata(@NotNull String metadataKey, @NotNull MetadataValue newMetadataValue) {
+    public void setMetadata(@Nonnull String metadataKey, @Nonnull MetadataValue newMetadataValue) {
         this.getUnsafeBlock().setMetadata(metadataKey, newMetadataValue);
     }
 
-    @NotNull
+    @Nonnull
     @Override
-    public List<MetadataValue> getMetadata(@NotNull String metadataKey) {
+    public List<MetadataValue> getMetadata(@Nonnull String metadataKey) {
         return this.getUnsafeBlock().getMetadata(metadataKey);
     }
 
     @Override
-    public boolean hasMetadata(@NotNull String metadataKey) {
+    public boolean hasMetadata(@Nonnull String metadataKey) {
         return this.getUnsafeBlock().hasMetadata(metadataKey);
     }
 
     @Override
-    public void removeMetadata(@NotNull String metadataKey, @NotNull Plugin owningPlugin) {
+    public void removeMetadata(@Nonnull String metadataKey, @Nonnull Plugin owningPlugin) {
         this.getUnsafeBlock().removeMetadata(metadataKey, owningPlugin);
     }
 
@@ -392,12 +407,12 @@ public class AsyncBlock implements Block {
     }
 
     @Override
-    public RayTraceResult rayTrace(@NotNull Location arg0, @NotNull Vector arg1, double arg2,
-        @NotNull FluidCollisionMode arg3) {
+    public RayTraceResult rayTrace(@Nonnull Location arg0, @Nonnull Vector arg1, double arg2,
+        @Nonnull FluidCollisionMode arg3) {
         return this.getUnsafeBlock().rayTrace(arg0, arg1, arg2, arg3);
     }
 
-    public boolean applyBoneMeal(@NotNull BlockFace face) {
+    public boolean applyBoneMeal(@Nonnull BlockFace face) {
         throw new UnsupportedOperationException("FAWE does not support this yet");
     }
 
@@ -405,22 +420,28 @@ public class AsyncBlock implements Block {
         throw new UnsupportedOperationException("FAWE does not support this yet");
     }
 
-    @NotNull
+    @Nonnull
     @Override
-    public float getDestroySpeed(@NotNull ItemStack itemStack) {
+    public float getDestroySpeed(@Nonnull ItemStack itemStack) {
         throw new UnsupportedOperationException("FAWE does not support this yet");
     }
 
-    @NotNull
+    @Nonnull
     @Override
     public BoundingBox getBoundingBox() {
         return this.getUnsafeBlock().getBoundingBox();
     }
 
     @Override
-    @NotNull
+    @Nonnull
     public BlockSoundGroup getSoundGroup() {
         return TaskManager.IMP.sync(() -> getUnsafeBlock().getSoundGroup());
     }
     
+    @Override
+    @Nonnull
+    public boolean isSolid() {
+        return this.getType().isSolid();
+    }
+
 }

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/wrapper/AsyncBlockState.java

@@ -1,6 +1,7 @@
 package com.boydti.fawe.bukkit.wrapper;
 
 import com.sk89q.jnbt.CompoundTag;
+import com.sk89q.jnbt.Tag;
 import com.sk89q.worldedit.WorldEditException;
 import com.sk89q.worldedit.bukkit.BukkitAdapter;
 import com.sk89q.worldedit.world.block.BaseBlock;
@@ -16,8 +17,12 @@ import org.bukkit.material.MaterialData;
 import org.bukkit.metadata.MetadataValue;
 import org.bukkit.plugin.Plugin;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
+import java.util.Optional;
 
 public class AsyncBlockState implements BlockState {
 
@@ -25,10 +30,6 @@ public class AsyncBlockState implements BlockState {
     private BlockData blockData;
     private final AsyncBlock block;
 
-    public AsyncBlockState(AsyncBlock block) {
-        this(block, block.world.getFullBlock(block.x, block.y, block.z));
-    }
-
     public AsyncBlockState(AsyncBlock block, BaseBlock state) {
         this.state = state;
         this.block = block;
@@ -112,11 +113,11 @@ public class AsyncBlockState implements BlockState {
     @Override
     public void setBlockData(BlockData blockData) {
         this.blockData = blockData;
-        CompoundTag nbt = state.getNbtData();
+        CompoundTag nbt = this.getNbtData();
         BlockType oldType = state.getBlockType();
         com.sk89q.worldedit.world.block.BlockState newState = BukkitAdapter.adapt(blockData);
         if (nbt != null && newState.getBlockType() == oldType) {
-            state = newState.toBaseBlock(nbt);
+            this.setNbtData(nbt);
         } else {
             state = newState.toBaseBlock();
         }
@@ -146,14 +147,47 @@ public class AsyncBlockState implements BlockState {
         }
     }
 
-    public CompoundTag getNbtData() {
+    /**
+     * Returns the (unmodifiable) tag compound that belongs to this block state.
+     * If the block state is null, this will return null.
+     *
+     * @return NBT data
+     */
+    public synchronized @Nullable CompoundTag getNbtData() {
+        if (this.state == null) {
+            return null;
+        }
         return state.getNbtData();
     }
 
-    public void setNbtData(CompoundTag nbt) {
+    /**
+     * Clone the NBT {@link CompoundTag} into a new {@link Map}.
+     *
+     * @return Modifiable clone of NBT data
+     */
+    public @NotNull Map<String, Tag> cloneNbtMap() {
+        return Optional.ofNullable(this.getNbtData()).map(CompoundTag::getValue)
+            .map(HashMap::new).orElse(new HashMap<>());
+    }
+
+    /**
+     * Set the NBT data of the block.
+     *
+     * @param nbt New NBT data
+     */
+    public synchronized void setNbtData(@Nullable final CompoundTag nbt) {
         state = this.state.toBaseBlock(nbt);
     }
 
+    /**
+     * Set the NBT data of the block.
+     *
+     * @param map New NBT data
+     */
+    public void setNbtData(@NotNull final Map<String, Tag> map) {
+        this.setNbtData(new CompoundTag(map));
+    }
+
     @Override
     public byte getRawData() {
         return (byte) (state.getInternalId() >> BlockTypesCache.BIT_OFFSET);
@@ -163,7 +197,7 @@ public class AsyncBlockState implements BlockState {
     public void setRawData(byte data) {
         int combinedId = getTypeId() + (data << BlockTypesCache.BIT_OFFSET);
         state = com.sk89q.worldedit.world.block.BlockState.getFromInternalId(combinedId)
-            .toBaseBlock(state.getNbtData());
+            .toBaseBlock(this.getNbtData());
         this.blockData = BukkitAdapter.adapt(state);
     }
 

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/wrapper/AsyncChunk.java

@@ -6,6 +6,7 @@ import com.boydti.fawe.util.TaskManager;
 import org.bukkit.Chunk;
 import org.bukkit.ChunkSnapshot;
 import org.bukkit.World;
+import org.bukkit.block.Block;
 import org.bukkit.block.BlockState;
 import org.bukkit.block.data.BlockData;
 import org.bukkit.entity.Entity;
@@ -14,6 +15,8 @@ import org.bukkit.plugin.Plugin;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.Collection;
+import java.util.Collections;
+import java.util.function.Predicate;
 import java.util.function.Supplier;
 
 public class AsyncChunk implements Chunk {
@@ -120,6 +123,16 @@ public class AsyncChunk implements Chunk {
         return TaskManager.IMP.sync(() -> world.getChunkAt(x, z).getTileEntities(useSnapshot));
     }
 
+    @NotNull @Override
+    public Collection<BlockState> getTileEntities(@NotNull Predicate<Block> blockPredicate,
+        boolean useSnapshot) {
+        if (!isLoaded()) {
+            return Collections.emptyList();
+        }
+        return TaskManager.IMP.sync(() -> world.getChunkAt(x, z)
+            .getTileEntities(blockPredicate, useSnapshot));
+    }
+
     @Override
     public boolean isLoaded() {
         return world.isChunkLoaded(x, z);

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/wrapper/state/AsyncDataContainer.java

@@ -16,17 +16,24 @@ import java.util.HashSet;
 import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
+import java.util.function.Consumer;
+import java.util.function.Supplier;
 
 public final class AsyncDataContainer implements PersistentDataContainer {
-    private final CompoundTag root;
 
-    public AsyncDataContainer(CompoundTag root) {
-        this.root = root;
+    private final Supplier<CompoundTag> supplier;
+    private final Consumer<CompoundTag> consumer;
+
+    public AsyncDataContainer(
+        final @NotNull Supplier<CompoundTag> supplier,
+        final @NotNull Consumer<CompoundTag> consumer
+    ) {
+        this.supplier = supplier;
+        this.consumer = consumer;
     }
 
     private CompoundTag root() {
-        CompoundTag value = (CompoundTag) root.getValue().get("PublicBukkitValues");
-        return value;
+        return (CompoundTag) supplier.get().getValue().get("PublicBukkitValues");
     }
 
     private Map<String, Tag> get() {
@@ -40,8 +47,9 @@ public final class AsyncDataContainer implements PersistentDataContainer {
             if (!create) {
                 return Collections.emptyMap();
             }
-            Map<String, Tag> map = root.getValue();
+            final Map<String, Tag> map = new HashMap<>(root().getValue());
             map.put("PublicBukkitValues", new CompoundTag(raw = new HashMap<>()));
+            this.consumer.accept(new CompoundTag(map));
         } else {
             raw = tag.getValue();
         }
@@ -52,7 +60,14 @@ public final class AsyncDataContainer implements PersistentDataContainer {
         Validate.notNull(key, "The provided key for the custom value was null");
         Validate.notNull(type, "The provided type for the custom value was null");
         Validate.notNull(value, "The provided value for the custom value was null");
-        get().put(key.toString(), FaweCache.IMP.asTag(type.toPrimitive(value, null)));
+        // Modify public values
+        final Map<String, Tag> publicValues = new HashMap<>(this.get());
+        publicValues.put(key.toString(), FaweCache.IMP.asTag(type.toPrimitive(value, null)));
+        // Modify the root tag
+        final Map<String, Tag> map = new HashMap<>(root().getValue());
+        map.put("PublicBukkitValues", new CompoundTag(publicValues));
+        // Update the owning object
+        this.consumer.accept(new CompoundTag(map));
     }
 
     public <T, Z> boolean has(NamespacedKey key, PersistentDataType<T, Z> type) {
@@ -60,7 +75,7 @@ public final class AsyncDataContainer implements PersistentDataContainer {
         Validate.notNull(type, "The provided type for the custom value was null");
         Tag value = get(false).get(key.toString());
         if (value == null) {
-            return type == null;
+            return false;
         }
         return type.getPrimitiveType() == value.getValue().getClass();
     }
@@ -93,7 +108,14 @@ public final class AsyncDataContainer implements PersistentDataContainer {
 
     public void remove(NamespacedKey key) {
         Validate.notNull(key, "The provided key for the custom value was null");
-        get(false).remove(key.toString());
+        // Modify public values
+        final Map<String, Tag> publicValues = new HashMap<>(this.get(false));
+        publicValues.remove(key.toString());
+        // Modify the root tag
+        final Map<String, Tag> map = new HashMap<>(root().getValue());
+        map.put("PublicBukkitValues", new CompoundTag(publicValues));
+        // Update the owning object
+        this.consumer.accept(new CompoundTag(map));
     }
 
     public boolean isEmpty() {

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/wrapper/state/AsyncSign.java

@@ -19,6 +19,7 @@ import java.util.Locale;
 import java.util.Map;
 
 public class AsyncSign extends AsyncBlockState implements Sign {
+
     public AsyncSign(AsyncBlock block, BaseBlock state) {
         super(block, state);
     }
@@ -59,11 +60,12 @@ public class AsyncSign extends AsyncBlockState implements Sign {
 
     @Override
     public void setLine(int index, String line) throws IndexOutOfBoundsException {
-        CompoundTag nbt = getNbtData();
-        if (nbt != null) {
-            Map<String, Tag> map = nbt.getValue();
-            map.put("Text" + (index + 1), new StringTag(toJson(line)));
+        final Map<String, Tag> map = this.cloneNbtMap();
+        if (map.isEmpty()) {
+            return;
         }
+        map.put("Text" + (index + 1), new StringTag(toJson(line)));
+        this.setNbtData(map);
     }
 
     @Override
@@ -79,13 +81,13 @@ public class AsyncSign extends AsyncBlockState implements Sign {
     @Override
     @NotNull
     public PersistentDataContainer getPersistentDataContainer() {
-        return new AsyncDataContainer(getNbtData());
+        return new AsyncDataContainer(this::getNbtData, this::setNbtData);
     }
 
     @Override
     @Nullable
     public DyeColor getColor() {
-        CompoundTag nbt = getNbtData();
+        CompoundTag nbt = this.getNbtData();
         if (nbt != null) {
             String color = nbt.getString("Color").toUpperCase(Locale.ROOT);
             if (!color.isEmpty()) {
@@ -97,10 +99,11 @@ public class AsyncSign extends AsyncBlockState implements Sign {
 
     @Override
     public void setColor(DyeColor color) {
-        CompoundTag nbt = getNbtData();
-        if (nbt != null) {
-            Map<String, Tag> map = nbt.getValue();
+        final Map<String, Tag> map = this.cloneNbtMap();
+        if (map.isEmpty()) {
+            return;
+        }
         map.put("Color", new StringTag(color.name().toLowerCase(Locale.ROOT)));
-        }
+        this.setNbtData(map);
     }
 }

worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/WorldEditPlugin.java

@@ -19,7 +19,6 @@
 
 package com.sk89q.worldedit.bukkit;
 
-
 import com.boydti.fawe.Fawe;
 import com.boydti.fawe.bukkit.FaweBukkit;
 import com.google.common.base.Joiner;
@@ -93,19 +92,6 @@ import static com.sk89q.worldedit.internal.anvil.ChunkDeleter.DELCHUNKS_FILE_NAM
  */
 public class WorldEditPlugin extends JavaPlugin { //implements TabCompleter
 
-    // This must be before the Logger is initialized, which fails in 1.8
-    private static final String FAILED_VERSION_CHECK =
-        "\n**********************************************\n"
-            + "** This Minecraft version (%s) is not supported by this version of WorldEdit.\n"
-            + "** Please download an OLDER version of WorldEdit which does.\n"
-            + "**********************************************\n";
-
-    static {
-        if (PaperLib.getMinecraftVersion() < 13) {
-            throw new IllegalStateException(String.format(FAILED_VERSION_CHECK, Bukkit.getVersion()));
-        }
-    }
-
     private static final Logger log = LoggerFactory.getLogger(WorldEditPlugin.class);
     public static final String CUI_PLUGIN_CHANNEL = "worldedit:cui";
     private static WorldEditPlugin INSTANCE;

worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/FAWE_Spigot_v1_15_R2.java

@@ -19,7 +19,6 @@
 
 package com.sk89q.worldedit.bukkit.adapter.impl;
 
-import com.boydti.fawe.Fawe;
 import com.boydti.fawe.FaweCache;
 import com.boydti.fawe.beta.IChunkGet;
 import com.boydti.fawe.beta.implementation.packet.ChunkPacket;
@@ -93,20 +92,21 @@ import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
 import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 
+import javax.annotation.Nullable;
 import java.lang.ref.WeakReference;
+import java.util.HashMap;
 import java.util.Map;
 import java.util.OptionalInt;
 import java.util.Set;
 import java.util.function.Supplier;
 import java.util.stream.Stream;
-import javax.annotation.Nullable;
 
-import static com.google.common.base.Preconditions.checkNotNull;
 import static org.slf4j.LoggerFactory.getLogger;
 
 public final class FAWE_Spigot_v1_15_R2 extends CachedBukkitAdapter implements IDelegateBukkitImplAdapter<NBTBase> {
     private final Spigot_v1_15_R2 parent;
     private char[] ibdToStateOrdinal;
+    private int[] ordinalToIbdID;
     // ------------------------------------------------------------------------
     // Code that may break between versions of Minecraft
     // ------------------------------------------------------------------------
@@ -124,12 +124,15 @@ public final class FAWE_Spigot_v1_15_R2 extends CachedBukkitAdapter implements I
         if (ibdToStateOrdinal != null && ibdToStateOrdinal[1] != 0) {
             return false;
         }
-        ibdToStateOrdinal = new char[Block.REGISTRY_ID.a()]; // size
+        ibdToStateOrdinal = new char[BlockTypesCache.states.length]; // size
+        ordinalToIbdID = new int[ibdToStateOrdinal.length]; // size
         for (int i = 0; i < ibdToStateOrdinal.length; i++) {
             BlockState state = BlockTypesCache.states[i];
             BlockMaterial_1_15_2 material = (BlockMaterial_1_15_2) state.getMaterial();
             int id = Block.REGISTRY_ID.getId(material.getState());
-            ibdToStateOrdinal[id] = state.getOrdinalChar();
+            char ordinal = state.getOrdinalChar();
+            ibdToStateOrdinal[id] = ordinal;
+            ordinalToIbdID[ordinal] = id;
         }
         return true;
     }
@@ -267,13 +270,13 @@ public final class FAWE_Spigot_v1_15_R2 extends CachedBukkitAdapter implements I
         if (id != null) {
             EntityType type = com.sk89q.worldedit.world.entity.EntityTypes.get(id);
             Supplier<CompoundTag> saveTag = () -> {
-                NBTTagCompound tag = new NBTTagCompound();
-                readEntityIntoTag(mcEntity, tag);
-
+                final NBTTagCompound minecraftTag = new NBTTagCompound();
+                readEntityIntoTag(mcEntity, minecraftTag);
                 //add Id for AbstractChangeSet to work
-                CompoundTag natve = (CompoundTag) toNative(tag);
-                natve.getValue().put("Id", new StringTag(id));
-                return natve;
+                final CompoundTag tag = (CompoundTag) toNative(minecraftTag);
+                final Map<String, Tag> tags = new HashMap<>(tag.getValue());
+                tags.put("Id", new StringTag(id));
+                return new CompoundTag(tags);
             };
             return new LazyBaseEntity(type, saveTag);
         } else {
@@ -347,6 +350,16 @@ public final class FAWE_Spigot_v1_15_R2 extends CachedBukkitAdapter implements I
             }
         }
     }
+    public int ordinalToIbdID(char ordinal) {
+        synchronized (this) {
+            try {
+                return ordinalToIbdID[ordinal];
+            } catch (NullPointerException e) {
+                init();
+                return ordinalToIbdID(ordinal);
+            }
+        }
+    }
 
     @Override
     public <B extends BlockStateHolder<B>> BlockData adapt(B state) {

worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/FAWE_Spigot_v1_16_R1.java

@@ -92,20 +92,21 @@ import org.bukkit.craftbukkit.v1_16_R1.entity.CraftPlayer;
 import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 
+import javax.annotation.Nullable;
 import java.lang.ref.WeakReference;
+import java.util.HashMap;
 import java.util.Map;
 import java.util.OptionalInt;
 import java.util.Set;
 import java.util.function.Supplier;
 import java.util.stream.Stream;
-import javax.annotation.Nullable;
 
-import static com.google.common.base.Preconditions.checkNotNull;
 import static org.slf4j.LoggerFactory.getLogger;
 
 public final class FAWE_Spigot_v1_16_R1 extends CachedBukkitAdapter implements IDelegateBukkitImplAdapter<NBTBase> {
     private final Spigot_v1_16_R1 parent;
     private char[] ibdToStateOrdinal;
+    private int[] ordinalToIbdID;
     // ------------------------------------------------------------------------
     // Code that may break between versions of Minecraft
     // ------------------------------------------------------------------------
@@ -123,12 +124,15 @@ public final class FAWE_Spigot_v1_16_R1 extends CachedBukkitAdapter implements I
         if (ibdToStateOrdinal != null && ibdToStateOrdinal[1] != 0) {
             return false;
         }
-        ibdToStateOrdinal = new char[Block.REGISTRY_ID.a()]; // size
+        ibdToStateOrdinal = new char[BlockTypesCache.states.length]; // size
+        ordinalToIbdID = new int[ibdToStateOrdinal.length]; // size
         for (int i = 0; i < ibdToStateOrdinal.length; i++) {
             BlockState state = BlockTypesCache.states[i];
             BlockMaterial_1_16_1 material = (BlockMaterial_1_16_1) state.getMaterial();
             int id = Block.REGISTRY_ID.getId(material.getState());
-            ibdToStateOrdinal[id] = state.getOrdinalChar();
+            char ordinal = state.getOrdinalChar();
+            ibdToStateOrdinal[id] = ordinal;
+            ordinalToIbdID[ordinal] = id;
         }
         return true;
     }
@@ -266,13 +270,13 @@ public final class FAWE_Spigot_v1_16_R1 extends CachedBukkitAdapter implements I
         if (id != null) {
             EntityType type = com.sk89q.worldedit.world.entity.EntityTypes.get(id);
             Supplier<CompoundTag> saveTag = () -> {
-                NBTTagCompound tag = new NBTTagCompound();
-                readEntityIntoTag(mcEntity, tag);
-
+                final NBTTagCompound minecraftTag = new NBTTagCompound();
+                readEntityIntoTag(mcEntity, minecraftTag);
                 //add Id for AbstractChangeSet to work
-                CompoundTag natve = (CompoundTag) toNative(tag);
-                natve.getValue().put("Id", new StringTag(id));
-                return natve;
+                final CompoundTag tag = (CompoundTag) toNative(minecraftTag);
+                final Map<String, Tag> tags = new HashMap<>(tag.getValue());
+                tags.put("Id", new StringTag(id));
+                return new CompoundTag(tags);
             };
             return new LazyBaseEntity(type, saveTag);
         } else {
@@ -347,6 +351,17 @@ public final class FAWE_Spigot_v1_16_R1 extends CachedBukkitAdapter implements I
         }
     }
 
+    public int ordinalToIbdID(char ordinal) {
+        synchronized (this) {
+            try {
+                return ordinalToIbdID[ordinal];
+            } catch (NullPointerException e) {
+                init();
+                return ordinalToIbdID(ordinal);
+            }
+        }
+    }
+
     @Override
     public <B extends BlockStateHolder<B>> BlockData adapt(B state) {
         BlockMaterial_1_16_1 material = (BlockMaterial_1_16_1) state.getMaterial();

worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/FAWE_Spigot_v1_16_R2.java

@@ -92,20 +92,22 @@ import org.bukkit.craftbukkit.v1_16_R2.entity.CraftEntity;
 import org.bukkit.craftbukkit.v1_16_R2.entity.CraftPlayer;
 import org.bukkit.craftbukkit.v1_16_R2.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
+
+import javax.annotation.Nullable;
 import java.lang.ref.WeakReference;
+import java.util.HashMap;
 import java.util.Map;
 import java.util.OptionalInt;
 import java.util.Set;
 import java.util.function.Supplier;
 import java.util.stream.Stream;
-import javax.annotation.Nullable;
 
-import static com.google.common.base.Preconditions.checkNotNull;
 import static org.slf4j.LoggerFactory.getLogger;
 
 public final class FAWE_Spigot_v1_16_R2 extends CachedBukkitAdapter implements IDelegateBukkitImplAdapter<NBTBase> {
     private final Spigot_v1_16_R2 parent;
     private char[] ibdToStateOrdinal;
+    private int[] ordinalToIbdID;
 
     // ------------------------------------------------------------------------
     // Code that may break between versions of Minecraft
@@ -124,12 +126,15 @@ public final class FAWE_Spigot_v1_16_R2 extends CachedBukkitAdapter implements I
         if (ibdToStateOrdinal != null && ibdToStateOrdinal[1] != 0) {
             return false;
         }
-        ibdToStateOrdinal = new char[Block.REGISTRY_ID.a()]; // size
+        ibdToStateOrdinal = new char[BlockTypesCache.states.length]; // size
+        ordinalToIbdID = new int[ibdToStateOrdinal.length]; // size
         for (int i = 0; i < ibdToStateOrdinal.length; i++) {
             BlockState state = BlockTypesCache.states[i];
             BlockMaterial_1_16_2 material = (BlockMaterial_1_16_2) state.getMaterial();
             int id = Block.REGISTRY_ID.getId(material.getState());
-            ibdToStateOrdinal[id] = state.getOrdinalChar();
+            char ordinal = state.getOrdinalChar();
+            ibdToStateOrdinal[id] = ordinal;
+            ordinalToIbdID[ordinal] = id;
         }
         return true;
     }
@@ -267,13 +272,13 @@ public final class FAWE_Spigot_v1_16_R2 extends CachedBukkitAdapter implements I
         if (id != null) {
             EntityType type = com.sk89q.worldedit.world.entity.EntityTypes.get(id);
             Supplier<CompoundTag> saveTag = () -> {
-                NBTTagCompound tag = new NBTTagCompound();
-                readEntityIntoTag(mcEntity, tag);
-
+                final NBTTagCompound minecraftTag = new NBTTagCompound();
+                readEntityIntoTag(mcEntity, minecraftTag);
                 //add Id for AbstractChangeSet to work
-                CompoundTag natve = (CompoundTag) toNative(tag);
-                natve.getValue().put("Id", new StringTag(id));
-                return natve;
+                final CompoundTag tag = (CompoundTag) toNative(minecraftTag);
+                final Map<String, Tag> tags = new HashMap<>(tag.getValue());
+                tags.put("Id", new StringTag(id));
+                return new CompoundTag(tags);
             };
             return new LazyBaseEntity(type, saveTag);
         } else {
@@ -347,6 +352,16 @@ public final class FAWE_Spigot_v1_16_R2 extends CachedBukkitAdapter implements I
             }
         }
     }
+    public int ordinalToIbdID(char ordinal) {
+        synchronized (this) {
+            try {
+                return ordinalToIbdID[ordinal];
+            } catch (NullPointerException e) {
+                init();
+                return ordinalToIbdID(ordinal);
+            }
+        }
+    }
 
     @Override
     public <B extends BlockStateHolder<B>> BlockData adapt(B state) {

worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/FAWE_Spigot_v1_16_R3.java

@@ -19,7 +19,6 @@
 
 package com.sk89q.worldedit.bukkit.adapter.impl;
 
-import com.bekvon.bukkit.residence.commands.material;
 import com.boydti.fawe.FaweCache;
 import com.boydti.fawe.beta.IChunkGet;
 import com.boydti.fawe.beta.implementation.packet.ChunkPacket;
@@ -96,6 +95,7 @@ import org.bukkit.entity.Player;
 
 import javax.annotation.Nullable;
 import java.lang.ref.WeakReference;
+import java.util.HashMap;
 import java.util.Map;
 import java.util.OptionalInt;
 import java.util.Set;
@@ -107,6 +107,7 @@ import static org.slf4j.LoggerFactory.getLogger;
 public final class FAWE_Spigot_v1_16_R3 extends CachedBukkitAdapter implements IDelegateBukkitImplAdapter<NBTBase> {
     private final Spigot_v1_16_R3 parent;
     private char[] ibdToStateOrdinal;
+    private int[] ordinalToIbdID;
 
     // ------------------------------------------------------------------------
     // Code that may break between versions of Minecraft
@@ -125,12 +126,15 @@ public final class FAWE_Spigot_v1_16_R3 extends CachedBukkitAdapter implements I
         if (ibdToStateOrdinal != null && ibdToStateOrdinal[1] != 0) {
             return false;
         }
-        ibdToStateOrdinal = new char[Block.REGISTRY_ID.a()]; // size
+        ibdToStateOrdinal = new char[BlockTypesCache.states.length]; // size
+        ordinalToIbdID = new int[ibdToStateOrdinal.length]; // size
         for (int i = 0; i < ibdToStateOrdinal.length; i++) {
             BlockState state = BlockTypesCache.states[i];
             BlockMaterial_1_16_4 material = (BlockMaterial_1_16_4) state.getMaterial();
             int id = Block.REGISTRY_ID.getId(material.getState());
-            ibdToStateOrdinal[id] = state.getOrdinalChar();
+            char ordinal = state.getOrdinalChar();
+            ibdToStateOrdinal[id] = ordinal;
+            ordinalToIbdID[ordinal] = id;
         }
         return true;
     }
@@ -268,13 +272,13 @@ public final class FAWE_Spigot_v1_16_R3 extends CachedBukkitAdapter implements I
         if (id != null) {
             EntityType type = com.sk89q.worldedit.world.entity.EntityTypes.get(id);
             Supplier<CompoundTag> saveTag = () -> {
-                NBTTagCompound tag = new NBTTagCompound();
-                readEntityIntoTag(mcEntity, tag);
-
+                final NBTTagCompound minecraftTag = new NBTTagCompound();
+                readEntityIntoTag(mcEntity, minecraftTag);
                 //add Id for AbstractChangeSet to work
-                CompoundTag natve = (CompoundTag) toNative(tag);
-                natve.getValue().put("Id", new StringTag(id));
-                return natve;
+                final CompoundTag tag = (CompoundTag) toNative(minecraftTag);
+                final Map<String, Tag> tags = new HashMap<>(tag.getValue());
+                tags.put("Id", new StringTag(id));
+                return new CompoundTag(tags);
             };
             return new LazyBaseEntity(type, saveTag);
         } else {
@@ -349,6 +353,17 @@ public final class FAWE_Spigot_v1_16_R3 extends CachedBukkitAdapter implements I
         }
     }
 
+    public int ordinalToIbdID(char ordinal) {
+        synchronized (this) {
+            try {
+                return ordinalToIbdID[ordinal];
+            } catch (NullPointerException e) {
+                init();
+                return ordinalToIbdID(ordinal);
+            }
+        }
+    }
+
     @Override
     public <B extends BlockStateHolder<B>> BlockData adapt(B state) {
         BlockMaterial_1_16_4 material = (BlockMaterial_1_16_4) state.getMaterial();

worldedit-core/build.gradle.kts

@@ -28,14 +28,14 @@ configurations.all {
 
 dependencies {
     "api"(project(":worldedit-libs:core"))
-    "implementation"("de.schlichtherle:truezip:6.8.3")
-    "implementation"("net.java.truevfs:truevfs-profile-default_2.13:0.12.1")
+    "implementation"("de.schlichtherle:truezip:6.8.4")
+    "implementation"("net.java.truevfs:truevfs-profile-default_2.13:0.12.2")
     "implementation"("org.mozilla:rhino-runtime:1.7.12")
-    "implementation"("org.yaml:snakeyaml:1.23")
+    "implementation"("org.yaml:snakeyaml:1.27")
     "implementation"("com.google.guava:guava:${Versions.GUAVA}")
     "implementation"("com.google.code.findbugs:jsr305:3.0.2")
     "implementation"("com.google.code.gson:gson:${Versions.GSON}")
-    "implementation"("org.slf4j:slf4j-api:1.7.27")
+    "implementation"("org.slf4j:slf4j-api:1.7.30")
     "implementation"("it.unimi.dsi:fastutil:${Versions.FAST_UTIL}")
 
     val antlrVersion = "4.7.2"
@@ -51,14 +51,15 @@ dependencies {
     "annotationProcessor"("com.google.auto.value:auto-value:${Versions.AUTO_VALUE}")
     "testImplementation"("ch.qos.logback:logback-core:${Versions.LOGBACK}")
     "testImplementation"("ch.qos.logback:logback-classic:${Versions.LOGBACK}")
-    "compile"("com.github.luben:zstd-jni:1.4.3-1")
+    "compile"("com.github.luben:zstd-jni:1.4.8-1")
     "compileOnly"("net.fabiozumbi12:redprotect:1.9.6")
     "compile"("com.github.intellectualsites.plotsquared:PlotSquared-API:latest") {
         isTransitive = false
     }
-    "compile"("com.plotsquared:PlotSquared-Core:5.12.2") {
+    "compile"("com.plotsquared:PlotSquared-Core:5.13.3") {
         isTransitive = false
     }
+    "api"("com.intellectualsites.paster:Paster:1.0.1-SNAPSHOT")
 }
 
 tasks.named<Test>("test") {
@@ -109,7 +110,7 @@ tasks.named<Copy>("processResources") {
 }
 tasks.named<ShadowJar>("shadowJar") {
     dependencies {
-        include(dependency("com.github.luben:zstd-jni:1.4.3-1"))
+        include(dependency("com.github.luben:zstd-jni:1.4.8-1"))
 
     }
 }

worldedit-core/src/main/java/com/boydti/fawe/Fawe.java

@@ -235,7 +235,7 @@ public class Fawe {
         // Setting up config.yml
         File file = new File(this.implementation.getDirectory(), "config.yml");
         Settings.IMP.PLATFORM = implementation.getPlatform().replace("\"", "");
-        try (InputStream stream = getClass().getResourceAsStream(File.separator + "fawe.properties");
+        try (InputStream stream = getClass().getResourceAsStream("/fawe.properties");
             BufferedReader br = new BufferedReader(new InputStreamReader(stream))) {
             String versionString = br.readLine();
             String commitString = br.readLine();

worldedit-core/src/main/java/com/boydti/fawe/beta/implementation/blocks/CharBlocks.java

@@ -9,19 +9,28 @@ import org.jetbrains.annotations.Range;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.util.concurrent.locks.ReentrantLock;
+
 public abstract class CharBlocks implements IBlocks {
 
     public static final Logger logger = LoggerFactory.getLogger(CharBlocks.class);
 
-    public static final Section FULL = new Section() {
+    protected static final Section FULL = new Section() {
         @Override
         public final char[] get(CharBlocks blocks, int layer) {
             return blocks.blocks[layer];
         }
-    };
-    public static final Section EMPTY = new Section() {
+
         @Override
-        public final synchronized char[] get(CharBlocks blocks, int layer) {
+        public final boolean isFull() {
+            return true;
+        }
+    };
+    protected static final Section EMPTY = new Section() {
+        @Override
+        public final char[] get(CharBlocks blocks, int layer) {
+            blocks.loadLock.lock();
+            try {
                 char[] arr = blocks.blocks[layer];
                 if (arr == null) {
                     arr = blocks.blocks[layer] = blocks.update(layer, null);
@@ -38,10 +47,19 @@ public abstract class CharBlocks implements IBlocks {
                     blocks.sections[layer] = FULL;
                 }
                 return arr;
+            } finally {
+                blocks.loadLock.unlock();
+            }
+        }
+
+        @Override
+        public final boolean isFull() {
+            return false;
         }
     };
     public final char[][] blocks;
     public final Section[] sections;
+    private final ReentrantLock loadLock = new ReentrantLock ();
 
     public CharBlocks() {
         blocks = new char[16][];
@@ -55,7 +73,7 @@ public abstract class CharBlocks implements IBlocks {
     public boolean trim(boolean aggressive) {
         boolean result = true;
         for (int i = 0; i < 16; i++) {
-            if (sections[i] == EMPTY && blocks[i] != null) {
+            if (!sections[i].isFull() && blocks[i] != null) {
                 blocks[i] = null;
             } else {
                 result = false;
@@ -67,7 +85,7 @@ public abstract class CharBlocks implements IBlocks {
     @Override
     public boolean trim(boolean aggressive, int layer) {
         boolean result = true;
-        if (sections[layer] == EMPTY && blocks[layer] != null) {
+        if (!sections[layer].isFull() && blocks[layer] != null) {
             blocks[layer] = null;
         } else {
             result = false;
@@ -99,7 +117,7 @@ public abstract class CharBlocks implements IBlocks {
 
     @Override
     public boolean hasSection(@Range(from = 0, to = 15) int layer) {
-        return sections[layer] == FULL;
+        return sections[layer].isFull();
     }
 
     @Override
@@ -149,6 +167,8 @@ public abstract class CharBlocks implements IBlocks {
 
         public abstract char[] get(CharBlocks blocks, @Range(from = 0, to = 15) int layer);
 
+        public abstract boolean isFull();
+
         public final char get(CharBlocks blocks, @Range(from = 0, to = 15) int layer, int index) {
             return get(blocks, layer)[index];
         }

worldedit-core/src/main/java/com/boydti/fawe/beta/implementation/queue/ParallelQueueExtent.java

@@ -140,7 +140,7 @@ public class ParallelQueueExtent extends PassthroughExtent implements IQueueWrap
         return
             // Apply a filter over a region
             apply(region, searchMask
-                .toFilter(new CountFilter()), false) // Adapt the mask to a filter which counts
+                .toFilter(new CountFilter()), searchMask.replacesAir()) // Adapt the mask to a filter which counts
                 .getParent() // Get the counter of this mask
                 .getTotal(); // Get the total from the counter
     }

worldedit-core/src/main/java/com/boydti/fawe/jnbt/streamer/StreamDelegate.java

@@ -200,7 +200,7 @@ public class StreamDelegate {
             Object raw = is.readTagPayloadRaw(type, depth);
             valueReader.apply(0, raw);
         } else {
-            is.readTagPaylodLazy(type, depth + 1, this);
+            is.readTagPayloadLazy(type, depth + 1, this);
         }
     }
 

worldedit-core/src/main/java/com/boydti/fawe/object/changeset/AbstractChangeSet.java

@@ -137,10 +137,8 @@ public abstract class AbstractChangeSet implements ChangeSet, IBatchProcessor {
         }
         if (!tilesTo.isEmpty()) {
             for (Map.Entry<BlockVector3, CompoundTag> entry : tilesTo.entrySet()) {
-                CompoundTag nbt = entry.getValue();
                 BlockVector3 pos = entry.getKey();
-                MainUtil.setPosition(nbt, pos.getX() + bx, pos.getY(), pos.getZ() + bz);
-                addTileCreate(nbt);
+                addTileCreate(MainUtil.setPosition(entry.getValue(), pos.getX() + bx, pos.getY(), pos.getZ() + bz));
             }
         }
         Set<UUID> entRemoves = set.getEntityRemoves();
@@ -176,11 +174,12 @@ public abstract class AbstractChangeSet implements ChangeSet, IBatchProcessor {
                     int zz = z + bz;
                     for (int x = 0; x < 16; x++, index++) {
                         int xx = bx + x;
-                        int combinedFrom = blocksGet[index];
-                        if (combinedFrom == 0) {
-                            combinedFrom = BlockID.AIR;
+                        int from = blocksGet[index];
+                        if (from == 0) {
+                            from = BlockID.AIR;
                         }
-                        int combinedTo = blocksSet[index];
+                        final int combinedFrom = from;
+                        final int combinedTo = blocksSet[index];
                         if (combinedTo != 0) {
                             add(xx, yy, zz, combinedFrom, combinedTo);
                         }
@@ -249,14 +248,12 @@ public abstract class AbstractChangeSet implements ChangeSet, IBatchProcessor {
 
     public void add(EntityCreate change) {
         CompoundTag tag = change.state.getNbtData();
-        MainUtil.setEntityInfo(tag, change.getEntity());
-        addEntityCreate(tag);
+        addEntityCreate(MainUtil.setEntityInfo(tag, change.getEntity()));
     }
 
     public void add(EntityRemove change) {
         CompoundTag tag = change.state.getNbtData();
-        MainUtil.setEntityInfo(tag, change.getEntity());
-        addEntityRemove(tag);
+        addEntityRemove(MainUtil.setEntityInfo(tag, change.getEntity()));
     }
 
     @Override
@@ -299,14 +296,12 @@ public abstract class AbstractChangeSet implements ChangeSet, IBatchProcessor {
             if (from.hasNbtData()) {
                 CompoundTag nbt = from.getNbtData();
                 assert nbt != null;
-                MainUtil.setPosition(nbt, x, y, z);
-                addTileRemove(nbt);
+                addTileRemove(MainUtil.setPosition(nbt, x, y, z));
             }
             if (to.hasNbtData()) {
                 CompoundTag nbt = to.getNbtData();
                 assert nbt != null;
-                MainUtil.setPosition(nbt, x, y, z);
-                addTileCreate(nbt);
+                addTileCreate(MainUtil.setPosition(nbt, x, y, z));
             }
             int combinedFrom = from.getOrdinal();
             int combinedTo = to.getOrdinal();
@@ -322,8 +317,7 @@ public abstract class AbstractChangeSet implements ChangeSet, IBatchProcessor {
             if (to.hasNbtData()) {
                 CompoundTag nbt = to.getNbtData();
                 assert nbt != null;
-                MainUtil.setPosition(nbt, x, y, z);
-                addTileCreate(nbt);
+                addTileCreate(MainUtil.setPosition(nbt, x, y, z));
             }
             int combinedTo = to.getInternalId();
             add(x, y, z, combinedFrom, combinedTo);
@@ -357,7 +351,7 @@ public abstract class AbstractChangeSet implements ChangeSet, IBatchProcessor {
             wrappedTask.run();
             return Futures.immediateCancelledFuture();
         } else {
-            return Fawe.get().getQueueHandler().async(wrappedTask);
+            return Fawe.get().getQueueHandler().submit(wrappedTask);
         }
     }
 }

worldedit-core/src/main/java/com/boydti/fawe/object/clipboard/CPUOptimizedClipboard.java

@@ -152,10 +152,8 @@ public class CPUOptimizedClipboard extends LinearClipboard {
     @Override
     public Collection<CompoundTag> getTileEntities() {
         convertTilesToIndex();
-        for (Map.Entry<Integer, CompoundTag> entry : nbtMapIndex.entrySet()) {
-            int index = entry.getKey();
-            CompoundTag tag = entry.getValue();
-            Map<String, Tag> values = tag.getValue();
+        nbtMapIndex.replaceAll((index, tag) -> {
+            Map<String, Tag> values = new HashMap<>(tag.getValue());
             if (!values.containsKey("x")) {
                 int y = index / getArea();
                 index -= y * getArea();
@@ -164,23 +162,26 @@ public class CPUOptimizedClipboard extends LinearClipboard {
                 values.put("x", new IntTag(x));
                 values.put("y", new IntTag(y));
                 values.put("z", new IntTag(z));
+                return new CompoundTag(values);
+            } else {
+                return tag;
             }
-        }
+        });
         return nbtMapIndex.values();
     }
 
     @Override
     public boolean setTile(int x, int y, int z, CompoundTag tag) {
-        nbtMapLoc.put(new IntTriple(x, y, z), tag);
+        nbtMapLoc.put(new IntTriple(x, y, z),  new CompoundTag(tag.getValue()));
         return true;
     }
 
     public boolean setTile(int index, CompoundTag tag) {
-        nbtMapIndex.put(index, tag);
-        Map<String, Tag> values = tag.getValue();
+        final Map<String, Tag> values = new HashMap<>(tag.getValue());
         values.remove("x");
         values.remove("y");
         values.remove("z");
+        nbtMapIndex.put(index, new CompoundTag(values));
         return true;
     }
 

worldedit-core/src/main/java/com/boydti/fawe/object/clipboard/DiskOptimizedClipboard.java

@@ -24,6 +24,7 @@ import com.sk89q.worldedit.world.block.BlockTypes;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import javax.annotation.Nullable;
 import java.io.Closeable;
 import java.io.DataInputStream;
 import java.io.File;
@@ -44,7 +45,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.UUID;
 import java.util.stream.Collectors;
-import javax.annotation.Nullable;
 
 /**
  * A clipboard with disk backed storage. (lower memory + loads on crash)
@@ -390,11 +390,11 @@ public class DiskOptimizedClipboard extends LinearClipboard implements Closeable
 
     @Override
     public boolean setTile(int x, int y, int z, CompoundTag tag) {
-        nbtMap.put(new IntTriple(x, y, z), tag);
-        Map<String, Tag> values = tag.getValue();
+        final Map<String, Tag> values = new HashMap<>(tag.getValue());
         values.put("x", new IntTag(x));
         values.put("y", new IntTag(y));
         values.put("z", new IntTag(z));
+        nbtMap.put(new IntTriple(x, y, z), new CompoundTag(values));
         return true;
     }
 

worldedit-core/src/main/java/com/boydti/fawe/object/clipboard/LinearClipboard.java

@@ -21,10 +21,6 @@ import java.util.HashSet;
 import java.util.Iterator;
 import java.util.UUID;
 
-/**
- * Best used when clipboard selections are small, or using legacy formats
- * (Small being < Integer.MAX_VALUE/BLOCK_SIZE_BYTES blocks)
- */
 public abstract class LinearClipboard extends SimpleClipboard {
 
     protected final HashSet<ClipboardEntity> entities = new HashSet<>();

worldedit-core/src/main/java/com/boydti/fawe/object/clipboard/MemoryOptimizedClipboard.java

@@ -257,11 +257,11 @@ public class MemoryOptimizedClipboard extends LinearClipboard {
 
     @Override
     public boolean setTile(int x, int y, int z, CompoundTag tag) {
-        nbtMap.put(new IntTriple(x, y, z), tag);
-        Map<String, Tag> values = tag.getValue();
+        final Map<String, Tag> values = new HashMap<>(tag.getValue());
         values.put("x", new IntTag(x));
         values.put("y", new IntTag(y));
         values.put("z", new IntTag(z));
+        nbtMap.put(new IntTriple(x, y, z), new CompoundTag(values));
         return true;
     }
 

worldedit-core/src/main/java/com/boydti/fawe/object/clipboard/SimpleClipboard.java

@@ -14,7 +14,7 @@ public abstract class SimpleClipboard implements Clipboard {
     SimpleClipboard(BlockVector3 dimensions) {
         this.size = dimensions;
         long longVolume = (long) getWidth() * (long) getHeight() * (long) getLength();
-        if (longVolume >= Integer.MAX_VALUE >> 2) {
+        if (longVolume >= Integer.MAX_VALUE) {
             throw new IllegalArgumentException("Dimensions are too large for this clipboard format.");
         }
         this.area = getWidth() * getLength();

worldedit-core/src/main/java/com/boydti/fawe/object/mask/AirMask.java

@@ -16,4 +16,9 @@ public class AirMask extends BlockMask {
         return new AirMask(getExtent());
     }
 
+    @Override
+    public boolean replacesAir() {
+        return true;
+    }
+
 }

worldedit-core/src/main/java/com/boydti/fawe/object/mask/IdDataMask.java

@@ -37,4 +37,9 @@ public class IdDataMask extends AbstractExtentMask implements ResettableMask {
         return new IdDataMask(getExtent());
     }
 
+    @Override
+    public boolean replacesAir() {
+        return true;
+    }
+
 }

worldedit-core/src/main/java/com/boydti/fawe/object/mask/IdMask.java

@@ -38,4 +38,9 @@ public class IdMask extends AbstractExtentMask implements ResettableMask {
         return new IdMask(getExtent());
     }
 
+    @Override
+    public boolean replacesAir() {
+        return true;
+    }
+
 }

worldedit-core/src/main/java/com/boydti/fawe/util/IncendoPaster.java

@@ -1,298 +0,0 @@
-package com.boydti.fawe.util;
-
-import com.boydti.fawe.Fawe;
-import com.google.common.base.Charsets;
-import com.google.gson.JsonObject;
-import com.google.gson.JsonParser;
-import com.sk89q.worldedit.util.paste.Paster;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileReader;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.lang.management.ManagementFactory;
-import java.lang.management.RuntimeMXBean;
-import java.net.HttpURLConnection;
-import java.net.URL;
-import java.net.URLConnection;
-import java.nio.file.Files;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Locale;
-import java.util.concurrent.Callable;
-import java.util.concurrent.TimeUnit;
-
-/**
- * Single class paster for the Incendo paste service
- *
- * @author Sauilitired
- */
-@SuppressWarnings({"unused", "WeakerAccess"})
-public final class IncendoPaster implements Paster {
-
-    /**
-     * Upload service URL
-     */
-    public static final String UPLOAD_PATH = "https://athion.net/ISPaster/paste/upload";
-    /**
-     * Valid paste applications
-     */
-    public static final Collection<String>
-        VALID_APPLICATIONS = Arrays
-        .asList("plotsquared", "fastasyncworldedit", "incendopermissions", "kvantum");
-
-    private final Collection<PasteFile> files = new ArrayList<>();
-    private final String pasteApplication;
-
-    /**
-     * Construct a new paster
-     *
-     * @param pasteApplication The application that is sending the paste
-     */
-    public IncendoPaster(final String pasteApplication) {
-        if (pasteApplication == null || pasteApplication.isEmpty()) {
-            throw new IllegalArgumentException("paste application cannot be null, nor empty");
-        }
-        if (!VALID_APPLICATIONS.contains(pasteApplication.toLowerCase(Locale.ROOT))) {
-            throw new IllegalArgumentException(
-                String.format("Unknown application name: %s", pasteApplication));
-        }
-        this.pasteApplication = pasteApplication;
-    }
-
-    @Override
-    public Callable<URL> paste(String content) {
-        return new PasteTask(content);
-    }
-
-    private final class PasteTask implements Callable<URL> {
-
-        private PasteTask(String content) {}
-
-        @Override
-        public URL call() throws Exception {
-            return new URL(debugPaste());
-        }
-
-    }
-
-    /**
-     * Get an immutable collection containing all the files that have been added to this paster
-     *
-     * @return Unmodifiable collection
-     */
-    public final Collection<PasteFile> getFiles() {
-        return Collections.unmodifiableCollection(this.files);
-    }
-
-    /**
-     * Add a file to the paster
-     *
-     * @param file File to paste
-     */
-    public void addFile(final PasteFile file) {
-        if (file == null) {
-            throw new IllegalArgumentException("File cannot be null");
-        }
-        // Check to see that no duplicate files are submitted
-        for (final PasteFile pasteFile : this.files) {
-            if (pasteFile.fileName.equalsIgnoreCase(file.getFileName())) {
-                throw new IllegalArgumentException(String.format("Found duplicate file with name %s",
-                    file.getFileName()));
-            }
-        }
-        this.files.add(file);
-    }
-
-    /**
-     * Create a JSON string from the submitted information
-     *
-     * @return compiled JSON string
-     */
-    private String toJsonString() {
-        final StringBuilder builder = new StringBuilder("{\n");
-        builder.append("\"paste_application\": \"").append(this.pasteApplication).append("\",\n\"files\": \"");
-        Iterator<PasteFile> fileIterator = this.files.iterator();
-        while (fileIterator.hasNext()) {
-            final PasteFile file = fileIterator.next();
-            builder.append(file.getFileName());
-            if (fileIterator.hasNext()) {
-                builder.append(",");
-            }
-        }
-        builder.append("\",\n");
-        fileIterator = this.files.iterator();
-        while (fileIterator.hasNext()) {
-            final PasteFile file = fileIterator.next();
-            builder.append("\"file-").append(file.getFileName()).append("\": \"")
-                .append(file.getContent().replaceAll("\"", "\\\\\"")).append("\"");
-            if (fileIterator.hasNext()) {
-                builder.append(",\n");
-            }
-        }
-        builder.append("\n}");
-        return builder.toString();
-    }
-
-    /**
-     * Upload the paste and return the status message
-     *
-     * @return Status message
-     * @throws Throwable any and all exceptions
-     */
-    public final String upload() throws Throwable {
-        final URL url = new URL(UPLOAD_PATH);
-        final URLConnection connection = url.openConnection();
-        final HttpURLConnection httpURLConnection = (HttpURLConnection) connection;
-        httpURLConnection.setRequestMethod("POST");
-        httpURLConnection.setDoOutput(true);
-        final byte[] content = toJsonString().getBytes(Charsets.UTF_8);
-        httpURLConnection.setFixedLengthStreamingMode(content.length);
-        httpURLConnection.setRequestProperty("Content-Type", "application/json");
-        httpURLConnection.setRequestProperty("Accept", "*/*");
-        httpURLConnection.connect();
-        try (final OutputStream stream = httpURLConnection.getOutputStream()) {
-            stream.write(content);
-        }
-        if (!httpURLConnection.getResponseMessage().contains("OK")) {
-            throw new IllegalStateException(String.format("Server returned status: %d %s",
-                httpURLConnection.getResponseCode(), httpURLConnection.getResponseMessage()));
-        }
-        final StringBuilder input = new StringBuilder();
-        try (final BufferedReader inputStream = new BufferedReader(new InputStreamReader(httpURLConnection.getInputStream()))) {
-            String line;
-            while ((line = inputStream.readLine()) != null) {
-                input.append(line).append("\n");
-            }
-        }
-        return input.toString();
-    }
-
-    /**
-     * Simple class that represents a paste file
-     */
-    public static class PasteFile {
-
-        private final String fileName;
-        private final String content;
-
-        /**
-         * Construct a new paste file
-         *
-         * @param fileName File name, cannot be empty, nor null
-         * @param content File content, cannot be empty, nor null
-         */
-        public PasteFile(final String fileName, final String content) {
-            if (fileName == null || fileName.isEmpty()) {
-                throw new IllegalArgumentException("file name cannot be null, nor empty");
-            }
-            if (content == null || content.isEmpty()) {
-                throw new IllegalArgumentException("content cannot be null, nor empty");
-            }
-            this.fileName = fileName;
-            this.content = content;
-        }
-
-        /**
-         * Get the file name
-         *
-         * @return File name
-         */
-        public String getFileName() {
-            return this.fileName;
-        }
-
-        /**
-         * Get the file content as a single string
-         *
-         * @return File content
-         */
-        public String getContent() {
-            return this.content;
-        }
-    }
-
-    public static String debugPaste() throws IOException {
-        final IncendoPaster incendoPaster = new IncendoPaster("fastasyncworldedit");
-
-        StringBuilder b = new StringBuilder();
-        b.append(
-            "# Welcome to this paste\n# It is meant to provide us at IntellectualSites with better information about your "
-                + "problem\n");
-        b.append("\n# Server Information\n");
-        b.append(Fawe.imp().getDebugInfo());
-        b.append("\n# YAY! Now, let's see what we can find in your JVM\n");
-        Runtime runtime = Runtime.getRuntime();
-        RuntimeMXBean rb = ManagementFactory.getRuntimeMXBean();
-        b.append("Uptime: ").append(TimeUnit.MINUTES.convert(rb.getUptime(), TimeUnit.MILLISECONDS))
-            .append(" minutes").append('\n');
-        b.append("JVM Flags: ").append(rb.getInputArguments()).append('\n');
-        b.append("Free Memory: ").append(runtime.freeMemory() / 1024 / 1024).append(" MB").append('\n');
-        b.append("Max Memory: ").append(runtime.maxMemory() / 1024 / 1024).append(" MB").append('\n');
-        b.append("Total Memory: ").append(runtime.totalMemory() / 1024 / 1024).append(" MB").append('\n');
-        b.append("Available Processors: ").append(runtime.availableProcessors()).append('\n');
-        b.append("Java Name: ").append(rb.getVmName()).append('\n');
-        b.append("Java Version: '").append(System.getProperty("java.version")).append("'\n");
-        b.append("Java Vendor: '").append(System.getProperty("java.vendor")).append("'\n");
-        b.append("Operating System: '").append(System.getProperty("os.name")).append("'\n");
-        b.append("OS Version: ").append(System.getProperty("os.version")).append('\n');
-        b.append("OS Arch: ").append(System.getProperty("os.arch")).append('\n');
-        b.append("# Okay :D Great. You are now ready to create your bug report!");
-        b.append("\n# You can do so at https://github.com/IntellectualSites/FastAsyncWorldEdit/issues");
-        b.append("\n# or via our Discord at https://discord.gg/KxkjDVg");
-        incendoPaster.addFile(new IncendoPaster.PasteFile("information", b.toString()));
-
-        try {
-            final File logFile = new File(Fawe.imp().getDirectory(), "../../logs/latest.log");
-            final String file;
-            if (Files.size(logFile.toPath()) > 14_000_000) {
-                file = "too big :(";
-            } else {
-                file = readFile(logFile);
-            }
-            incendoPaster.addFile(new IncendoPaster.PasteFile("latest.log", file));
-        } catch (IOException ignored) {
-        }
-
-        incendoPaster.addFile(new PasteFile("config.yml", readFile(new File(Fawe.imp().getDirectory(), "config.yml"))));
-        incendoPaster.addFile(new PasteFile("config-legacy.yml", readFile(new File(Fawe.imp().getDirectory(), "config-legacy.yml"))));
-
-        final String rawResponse;
-        try {
-            rawResponse = incendoPaster.upload();
-        } catch (Throwable throwable) {
-            throw new IOException(String.format("Failed to upload files: %s", throwable.getMessage()), throwable);
-        }
-        final JsonObject jsonObject = new JsonParser().parse(rawResponse).getAsJsonObject();
-
-        if (jsonObject.has("created")) {
-            final String pasteId = jsonObject.get("paste_id").getAsString();
-            return String.format("https://athion.net/ISPaster/paste/view/%s", pasteId);
-        } else {
-            throw new IOException(String.format("Failed to upload files: %s",
-                jsonObject.get("response").getAsString()));
-        }
-    }
-
-    private static String readFile(final File file) throws IOException {
-        final StringBuilder content = new StringBuilder();
-        final List<String> lines = new ArrayList<>();
-        try (final BufferedReader reader = new BufferedReader(new FileReader(file))) {
-            String line;
-            while ((line = reader.readLine()) != null) {
-                lines.add(line);
-            }
-        }
-        for (int i = Math.max(0, lines.size() - 1000); i < lines.size(); i++) {
-            content.append(lines.get(i)).append("\n");
-        }
-        return content.toString();
-    }
-
-}

worldedit-core/src/main/java/com/boydti/fawe/util/MainUtil.java

@@ -34,6 +34,9 @@ import net.jpountz.lz4.LZ4InputStream;
 import net.jpountz.lz4.LZ4Utils;
 import org.jetbrains.annotations.NotNull;
 
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import javax.imageio.ImageIO;
 import java.awt.Graphics2D;
 import java.awt.image.BufferedImage;
 import java.io.BufferedOutputStream;
@@ -66,6 +69,7 @@ import java.nio.file.attribute.BasicFileAttributes;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
@@ -83,8 +87,6 @@ import java.util.zip.GZIPInputStream;
 import java.util.zip.Inflater;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
-import javax.annotation.Nullable;
-import javax.imageio.ImageIO;
 
 import static java.lang.System.arraycopy;
 import static org.slf4j.LoggerFactory.getLogger;
@@ -448,24 +450,44 @@ public class MainUtil {
         }
     }
 
-    public static void setPosition(CompoundTag tag, int x, int y, int z) {
-        Map<String, Tag> value = tag.getValue();
+    /**
+     * Create a copy of the tag and modify the (x, y, z) coordinates
+     *
+     * @param tag Tag to copy
+     * @param x   New X coordinate
+     * @param y   New Y coordinate
+     * @param z   New Z coordinate
+     * @return New tag
+     */
+    public static @NotNull CompoundTag setPosition(@Nonnull CompoundTag tag, int x, int y, int z) {
+        Map<String, Tag> value = new HashMap<>(tag.getValue());
         value.put("x", new IntTag(x));
         value.put("y", new IntTag(y));
         value.put("z", new IntTag(z));
+        return new CompoundTag(value);
     }
 
-    public static void setEntityInfo(CompoundTag tag, Entity entity) {
-        Map<String, Tag> map = tag.getValue();
+    /**
+     * Create a copy of the tag and modify the entity inf
+     *
+     * @param tag    Tag to copy
+     * @param entity Entity
+     * @return New tag
+     */
+    public static @NotNull CompoundTag setEntityInfo(@NotNull CompoundTag tag, @NotNull Entity entity) {
+        Map<String, Tag> map = new HashMap<>(tag.getValue());
         map.put("Id", new StringTag(entity.getState().getType().getId()));
         ListTag pos = (ListTag) map.get("Pos");
         if (pos != null) {
             Location loc = entity.getLocation();
-            List<Tag> posList = ReflectionUtils.getList(pos.getValue());
+            // Create a copy, because the list is immutable...
+            List<Tag> posList = new ArrayList<>(pos.getValue());
             posList.set(0, new DoubleTag(loc.getX()));
             posList.set(1, new DoubleTag(loc.getY()));
             posList.set(2, new DoubleTag(loc.getZ()));
+            map.put("Pos", new ListTag(pos.getType(), posList));
         }
+        return new CompoundTag(map);
     }
 
     public static String getText(String url) throws IOException {

worldedit-core/src/main/java/com/boydti/fawe/util/RandomTextureUtil.java

@@ -1,5 +1,6 @@
 package com.boydti.fawe.util;
 
+import com.plotsquared.core.util.PseudoRandom;
 import com.sk89q.worldedit.world.block.BlockType;
 import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
 
@@ -34,6 +35,8 @@ public class RandomTextureUtil extends CachedTextureUtil {
         if (i < 0) {
             int i1 = -i;
             return -ThreadLocalRandom.current().nextInt(i1);
+        } else if( i == 0) {
+            return 0;
         } else {
             return ThreadLocalRandom.current().nextInt(i);
         }

worldedit-core/src/main/java/com/boydti/fawe/util/ReflectionUtils.java

@@ -67,22 +67,6 @@ public class ReflectionUtils {
         blankField(enumClass, "enumConstants"); // IBM JDK
     }
 
-    public static <T> List<T> getList(List<T> list) {
-        try {
-            Class<? extends List<T>> clazz = (Class<? extends List<T>>) Class
-                .forName("java.util.Collections$UnmodifiableList");
-            if (!clazz.isInstance(list)) {
-                return list;
-            }
-            Field m = clazz.getDeclaredField("list");
-            m.setAccessible(true);
-            return (List<T>) m.get(list);
-        } catch (Throwable e) {
-            e.printStackTrace();
-            return list;
-        }
-    }
-
     public static Object getHandle(Object wrapper) {
         final Method getHandle = makeMethod(wrapper.getClass(), "getHandle");
         return callMethod(getHandle, wrapper);

worldedit-core/src/main/java/com/boydti/fawe/util/TextureUtil.java

@@ -629,7 +629,6 @@ public class TextureUtil implements TextureHolder {
                                 mods.add(modId);
                             }
                         }
-                        continue;
                     }
                     String modelsDir = "assets/%1$s/models/block/%2$s.json";
                     String texturesDir = "assets/%1$s/textures/%2$s.png";
@@ -638,14 +637,14 @@ public class TextureUtil implements TextureHolder {
                     }.getType();
 
                     for (BlockType blockType : BlockTypesCache.values) {
-                        if (!blockType.getMaterial().isFullCube()) {
+                        if (!blockType.getMaterial().isFullCube() || blockType.getId().toLowerCase().contains("shulker")) {
                             continue;
                         }
                         int combined = blockType.getInternalId();
                         String id = blockType.getId();
                         String[] split = id.split(":", 2);
                         String name = split.length == 1 ? id : split[1];
-                        String nameSpace = split.length == 1 ? "minecraft" : split[0];
+                        String nameSpace = split.length == 1 ? "" : split[0];
 
                         Map<String, String> texturesMap = new ConcurrentHashMap<>();
                         // Read models
@@ -684,8 +683,11 @@ public class TextureUtil implements TextureHolder {
                                 continue;
                             }
 
+                            String[] texSplit = models.iterator().next().split(":");
+                            String texture = texSplit[texSplit.length - 1];
+
                             textureFileName =
-                                String.format(texturesDir, nameSpace, models.iterator().next());
+                                String.format(texturesDir, nameSpace, texture);
                         }
 
                         BufferedImage image = readImage(zipFile, textureFileName);

worldedit-core/src/main/java/com/sk89q/jnbt/ByteArrayTag.java

@@ -26,11 +26,6 @@ import java.util.Locale;
  */
 public final class ByteArrayTag extends Tag {
 
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_BYTE_ARRAY;
-    }
-
     private final byte[] value;
 
     /**
@@ -61,4 +56,11 @@ public final class ByteArrayTag extends Tag {
         return "TAG_Byte_Array(" + hex + ")";
     }
 
+    // FAWE Start
+    @Override
+    public int getTypeCode() {
+        return NBTConstants.TYPE_BYTE_ARRAY;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/ByteTag.java

@@ -19,14 +19,12 @@
 
 package com.sk89q.jnbt;
 
+import com.sk89q.jnbt.fawe.NumberTag;
+
 /**
  * The {@code TAG_Byte} tag.
  */
 public final class ByteTag extends NumberTag {
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_BYTE;
-    }
 
     private final byte value;
 
@@ -50,4 +48,11 @@ public final class ByteTag extends NumberTag {
         return "TAG_Byte(" + value + ")";
     }
 
+    // FAWE Start
+    @Override
+    public int getTypeCode() {
+        return NBTConstants.TYPE_BYTE;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/CompoundTag.java

@@ -19,6 +19,7 @@
 
 package com.sk89q.jnbt;
 
+import com.sk89q.jnbt.fawe.NumberTag;
 import com.sk89q.worldedit.extent.Extent;
 import com.sk89q.worldedit.math.Vector3;
 import com.sk89q.worldedit.util.Location;
@@ -34,12 +35,7 @@ import java.util.UUID;
  */
 public class CompoundTag extends Tag {
 
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_COMPOUND;
-    }
-
-    private Map<String, Tag> value;
+    private final Map<String, Tag> value;
 
     /**
      * Creates the tag with an empty name.
@@ -48,7 +44,7 @@ public class CompoundTag extends Tag {
      */
     public CompoundTag(Map<String, Tag> value) {
         super();
-        this.value = value;
+        this.value = Collections.unmodifiableMap(value);
     }
 
     /**
@@ -58,7 +54,7 @@ public class CompoundTag extends Tag {
      * @return true if the tag contains the given key
      */
     public boolean containsKey(String key) {
-        return getValue().containsKey(key);
+        return value.containsKey(key);
     }
 
     @Override
@@ -66,17 +62,6 @@ public class CompoundTag extends Tag {
         return value;
     }
 
-    /**
-     * Return a new compound tag with the given values.
-     *
-     * @param value the value
-     * @return the new compound tag
-     */
-    public CompoundTag setValue(Map<String, Tag> value) {
-        this.value = value;
-        return this;
-    }
-
     /**
      * Create a compound tag builder.
      *
@@ -96,7 +81,7 @@ public class CompoundTag extends Tag {
      * @return a byte array
      */
     public byte[] getByteArray(String key) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof ByteArrayTag) {
             return ((ByteArrayTag) tag).getValue();
         } else {
@@ -114,7 +99,7 @@ public class CompoundTag extends Tag {
      * @return a byte
      */
     public byte getByte(String key) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof ByteTag) {
             return ((ByteTag) tag).getValue();
         } else {
@@ -132,7 +117,7 @@ public class CompoundTag extends Tag {
      * @return a double
      */
     public double getDouble(String key) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof DoubleTag) {
             return ((DoubleTag) tag).getValue();
         } else {
@@ -151,9 +136,25 @@ public class CompoundTag extends Tag {
      * @return a double
      */
     public double asDouble(String key) {
-        Tag tag = getValue().get(key);
-        if (tag instanceof NumberTag) {
-            return ((NumberTag) tag).getValue().doubleValue();
+        Tag tag = value.get(key);
+        if (tag instanceof ByteTag) {
+            return ((ByteTag) tag).getValue();
+
+        } else if (tag instanceof ShortTag) {
+            return ((ShortTag) tag).getValue();
+
+        } else if (tag instanceof IntTag) {
+            return ((IntTag) tag).getValue();
+
+        } else if (tag instanceof LongTag) {
+            return ((LongTag) tag).getValue();
+
+        } else if (tag instanceof FloatTag) {
+            return ((FloatTag) tag).getValue();
+
+        } else if (tag instanceof DoubleTag) {
+            return ((DoubleTag) tag).getValue();
+
         } else {
             return 0;
         }
@@ -169,7 +170,7 @@ public class CompoundTag extends Tag {
      * @return a float
      */
     public float getFloat(String key) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof FloatTag) {
             return ((FloatTag) tag).getValue();
         } else {
@@ -187,7 +188,7 @@ public class CompoundTag extends Tag {
      * @return an int array
      */
     public int[] getIntArray(String key) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof IntArrayTag) {
             return ((IntArrayTag) tag).getValue();
         } else {
@@ -205,7 +206,7 @@ public class CompoundTag extends Tag {
      * @return an int
      */
     public int getInt(String key) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof IntTag) {
             return ((IntTag) tag).getValue();
         } else {
@@ -224,9 +225,25 @@ public class CompoundTag extends Tag {
      * @return an int
      */
     public int asInt(String key) {
-        Tag tag = getValue().get(key);
-        if (tag instanceof NumberTag) {
-            return ((NumberTag) tag).getValue().intValue();
+        Tag tag = value.get(key);
+        if (tag instanceof ByteTag) {
+            return ((ByteTag) tag).getValue();
+
+        } else if (tag instanceof ShortTag) {
+            return ((ShortTag) tag).getValue();
+
+        } else if (tag instanceof IntTag) {
+            return ((IntTag) tag).getValue();
+
+        } else if (tag instanceof LongTag) {
+            return ((LongTag) tag).getValue().intValue();
+
+        } else if (tag instanceof FloatTag) {
+            return ((FloatTag) tag).getValue().intValue();
+
+        } else if (tag instanceof DoubleTag) {
+            return ((DoubleTag) tag).getValue().intValue();
+
         } else {
             return 0;
         }
@@ -242,7 +259,7 @@ public class CompoundTag extends Tag {
      * @return a list of tags
      */
     public List<Tag> getList(String key) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof ListTag) {
             return ((ListTag) tag).getValue();
         } else {
@@ -260,7 +277,7 @@ public class CompoundTag extends Tag {
      * @return a tag list instance
      */
     public ListTag getListTag(String key) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof ListTag) {
             return (ListTag) tag;
         } else {
@@ -273,7 +290,7 @@ public class CompoundTag extends Tag {
      *
      * <p>If the key does not exist or its value is not a list tag,
      * then an empty list will be returned. If the given key references
-     * a list but the list of a different type, then an empty
+     * a list but the list of of a different type, then an empty
      * list will also be returned.</p>
      *
      * @param key the key
@@ -283,7 +300,7 @@ public class CompoundTag extends Tag {
      */
     @SuppressWarnings("unchecked")
     public <T extends Tag> List<T> getList(String key, Class<T> listType) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof ListTag) {
             ListTag listTag = (ListTag) tag;
             if (listTag.getType().equals(listType)) {
@@ -299,14 +316,14 @@ public class CompoundTag extends Tag {
     /**
      * Get a {@code long[]} named with the given key.
      *
-     * <p>If the key does not exist or its value is not a long array tag,
+     * <p>If the key does not exist or its value is not an long array tag,
      * then an empty array will be returned.</p>
      *
      * @param key the key
      * @return an int array
      */
     public long[] getLongArray(String key) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof LongArrayTag) {
             return ((LongArrayTag) tag).getValue();
         } else {
@@ -324,7 +341,7 @@ public class CompoundTag extends Tag {
      * @return a long
      */
     public long getLong(String key) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof LongTag) {
             return ((LongTag) tag).getValue();
         } else {
@@ -343,9 +360,25 @@ public class CompoundTag extends Tag {
      * @return a long
      */
     public long asLong(String key) {
-        Tag tag = getValue().get(key);
-        if (tag instanceof NumberTag) {
-            return ((NumberTag) tag).getValue().longValue();
+        Tag tag = value.get(key);
+        if (tag instanceof ByteTag) {
+            return ((ByteTag) tag).getValue();
+
+        } else if (tag instanceof ShortTag) {
+            return ((ShortTag) tag).getValue();
+
+        } else if (tag instanceof IntTag) {
+            return ((IntTag) tag).getValue();
+
+        } else if (tag instanceof LongTag) {
+            return ((LongTag) tag).getValue();
+
+        } else if (tag instanceof FloatTag) {
+            return ((FloatTag) tag).getValue().longValue();
+
+        } else if (tag instanceof DoubleTag) {
+            return ((DoubleTag) tag).getValue().longValue();
+
         } else {
             return 0L;
         }
@@ -361,7 +394,7 @@ public class CompoundTag extends Tag {
      * @return a short
      */
     public short getShort(String key) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof ShortTag) {
             return ((ShortTag) tag).getValue();
         } else {
@@ -379,7 +412,7 @@ public class CompoundTag extends Tag {
      * @return a string
      */
     public String getString(String key) {
-        Tag tag = getValue().get(key);
+        Tag tag = value.get(key);
         if (tag instanceof StringTag) {
             return ((StringTag) tag).getValue();
         } else {
@@ -388,17 +421,17 @@ public class CompoundTag extends Tag {
     }
 
     @Override
-    public Map<String, Object> toRaw() {
-        HashMap<String, Object> raw = new HashMap<>();
-        if (this.getValue().isEmpty()) {
-            return raw;
+    public String toString() {
+        StringBuilder bldr = new StringBuilder();
+        bldr.append("TAG_Compound").append(": ").append(value.size()).append(" entries\r\n{\r\n");
+        for (Map.Entry<String, Tag> entry : value.entrySet()) {
+            bldr.append("   ").append(entry.getValue().toString().replaceAll("\r\n", "\r\n   ")).append("\r\n");
         }
-        for (Map.Entry<String, Tag> entry : getValue().entrySet()) {
-            raw.put(entry.getKey(), entry.getValue().toRaw());
-        }
-        return raw;
+        bldr.append("}");
+        return bldr.toString();
     }
 
+    // FAWE Start
     public UUID getUUID() {
         long most = getLong("UUIDMost");
         long least = getLong("UUIDLeast");
@@ -421,15 +454,21 @@ public class CompoundTag extends Tag {
     }
 
     @Override
-    public String toString() {
-        Map<String, Tag> value = getValue();
-        StringBuilder bldr = new StringBuilder();
-        bldr.append("TAG_Compound").append(": ").append(getValue().size()).append(" entries\r\n{\r\n");
-        for (Map.Entry<String, Tag> entry : getValue().entrySet()) {
-            bldr.append("   ").append(entry.getValue().toString().replaceAll("\r\n", "\r\n   ")).append("\r\n");
-        }
-        bldr.append("}");
-        return bldr.toString();
+    public int getTypeCode() {
+        return NBTConstants.TYPE_COMPOUND;
     }
 
+    @Override
+    public Map<String, Object> toRaw() {
+        HashMap<String, Object> raw = new HashMap<>();
+        if (this.getValue().isEmpty()) {
+            return raw;
+        }
+        for (Map.Entry<String, Tag> entry : getValue().entrySet()) {
+            raw.put(entry.getKey(), entry.getValue().toRaw());
+        }
+        return raw;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/DoubleTag.java

@@ -19,14 +19,12 @@
 
 package com.sk89q.jnbt;
 
+import com.sk89q.jnbt.fawe.NumberTag;
+
 /**
  * The {@code TAG_Double} tag.
  */
 public final class DoubleTag extends NumberTag {
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_DOUBLE;
-    }
 
     private final double value;
 
@@ -50,4 +48,11 @@ public final class DoubleTag extends NumberTag {
         return "TAG_Double(" + value + ")";
     }
 
+    // FAWE Start
+    @Override
+    public int getTypeCode() {
+        return NBTConstants.TYPE_DOUBLE;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/EndTag.java

@@ -24,11 +24,6 @@ package com.sk89q.jnbt;
  */
 public final class EndTag extends Tag {
 
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_END;
-    }
-
     @Override
     public Object getValue() {
         return null;
@@ -39,4 +34,11 @@ public final class EndTag extends Tag {
         return "TAG_End";
     }
 
+    // FAWE Start
+    @Override
+    public int getTypeCode() {
+        return NBTConstants.TYPE_END;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/FloatTag.java

@@ -19,14 +19,12 @@
 
 package com.sk89q.jnbt;
 
+import com.sk89q.jnbt.fawe.NumberTag;
+
 /**
  * The {@code TAG_Float} tag.
  */
 public final class FloatTag extends NumberTag {
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_FLOAT;
-    }
 
     private final float value;
 
@@ -50,4 +48,11 @@ public final class FloatTag extends NumberTag {
         return "TAG_Float(" + value + ")";
     }
 
+    // FAWE Start
+    @Override
+    public int getTypeCode() {
+        return NBTConstants.TYPE_FLOAT;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/IntArrayTag.java

@@ -28,11 +28,6 @@ import static com.google.common.base.Preconditions.checkNotNull;
  */
 public final class IntArrayTag extends Tag {
 
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_INT_ARRAY;
-    }
-
     private final int[] value;
 
     /**
@@ -64,4 +59,11 @@ public final class IntArrayTag extends Tag {
         return "TAG_Int_Array(" + hex + ")";
     }
 
+    // FAWE Start
+    @Override
+    public int getTypeCode() {
+        return NBTConstants.TYPE_INT_ARRAY;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/IntTag.java

@@ -19,14 +19,12 @@
 
 package com.sk89q.jnbt;
 
+import com.sk89q.jnbt.fawe.NumberTag;
+
 /**
  * The {@code TAG_Int} tag.
  */
 public final class IntTag extends NumberTag {
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_INT;
-    }
 
     private final int value;
 
@@ -50,4 +48,11 @@ public final class IntTag extends NumberTag {
         return "TAG_Int(" + value + ")";
     }
 
+    // FAWE Start
+    @Override
+    public int getTypeCode() {
+        return NBTConstants.TYPE_INT;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/ListTag.java

@@ -19,10 +19,9 @@
 
 package com.sk89q.jnbt;
 
-import java.util.ArrayList;
+import javax.annotation.Nullable;
 import java.util.Collections;
 import java.util.List;
-import javax.annotation.Nullable;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
@@ -31,11 +30,6 @@ import static com.google.common.base.Preconditions.checkNotNull;
  */
 public final class ListTag extends Tag {
 
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_LIST;
-    }
-
     private final Class<? extends Tag> type;
     private final List<Tag> value;
 
@@ -421,18 +415,6 @@ public final class ListTag extends Tag {
         }
     }
 
-    @Override
-    public ArrayList toRaw() {
-        ArrayList<Object> raw = new ArrayList<>();
-        if (this.value.isEmpty()) {
-            return raw;
-        }
-        for (Tag elem : this.value) {
-            raw.add(elem.toRaw());
-        }
-        return raw;
-    }
-
     @Override
     public String toString() {
         StringBuilder bldr = new StringBuilder();
@@ -444,4 +426,11 @@ public final class ListTag extends Tag {
         return bldr.toString();
     }
 
+    // FAWE Start
+    @Override
+    public int getTypeCode() {
+        return NBTConstants.TYPE_LIST;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/LongArrayTag.java

@@ -28,11 +28,6 @@ import static com.google.common.base.Preconditions.checkNotNull;
  */
 public class LongArrayTag extends Tag {
 
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_LONG_ARRAY;
-    }
-
     private final long[] value;
 
     /**
@@ -64,4 +59,11 @@ public class LongArrayTag extends Tag {
         return "TAG_Long_Array(" + hex + ")";
     }
 
+    // FAWE Start
+    @Override
+    public int getTypeCode() {
+        return NBTConstants.TYPE_LONG_ARRAY;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/LongTag.java

@@ -19,14 +19,12 @@
 
 package com.sk89q.jnbt;
 
+import com.sk89q.jnbt.fawe.NumberTag;
+
 /**
  * The {@code TAG_Long} tag.
  */
 public final class LongTag extends NumberTag {
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_LONG;
-    }
 
     private final long value;
 
@@ -50,4 +48,11 @@ public final class LongTag extends NumberTag {
         return "TAG_Long(" + value + ")";
     }
 
+    // FAWE Start
+    @Override
+    public int getTypeCode() {
+        return NBTConstants.TYPE_LONG;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/NBTConstants.java

@@ -20,14 +20,13 @@
 package com.sk89q.jnbt;
 
 import java.nio.charset.Charset;
-import java.nio.charset.StandardCharsets;
 
 /**
  * A class which holds constant values.
  */
 public final class NBTConstants {
 
-    public static final Charset CHARSET = StandardCharsets.UTF_8;
+    public static final Charset CHARSET = Charset.forName("UTF-8");
 
     public static final int TYPE_END = 0;
     public static final int TYPE_BYTE = 1;

worldedit-core/src/main/java/com/sk89q/jnbt/NBTInputStream.java

@@ -32,6 +32,8 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+// THIS CLASS HAS BEEN HEAVILY MODIFIED BY FAWE
+
 /**
  * This class reads <strong>NBT</strong>, or <strong>Named Binary Tag</strong>
  * streams, and produces an object graph of subclasses of the {@code Tag}
@@ -61,6 +63,14 @@ public final class NBTInputStream implements Closeable {
         this.is = dis;
     }
 
+    public void mark(int mark) {
+        is.mark(mark);
+    }
+
+    public void reset() throws IOException {
+        is.reset();
+    }
+
     /**
      * Reads an NBT tag from the stream.
      *
@@ -99,7 +109,7 @@ public final class NBTInputStream implements Closeable {
             if (child != null) {
                 child.acceptRoot(this, type, 0);
             } else {
-                readTagPaylodLazy(type, 0);
+                readTagPayloadLazy(type, 0);
             }
         } catch (Throwable e) {
             e.printStackTrace();
@@ -119,7 +129,7 @@ public final class NBTInputStream implements Closeable {
 
     private byte[] buf;
 
-    public void readTagPaylodLazy(int type, int depth) throws IOException {
+    public void readTagPayloadLazy(int type, int depth) throws IOException {
         switch (type) {
             case NBTConstants.TYPE_END:
                 return;
@@ -152,7 +162,7 @@ public final class NBTInputStream implements Closeable {
                 int childType = is.readByte();
                 length = is.readInt();
                 for (int i = 0; i < length; ++i) {
-                    readTagPaylodLazy(childType, depth + 1);
+                    readTagPayloadLazy(childType, depth + 1);
                 }
                 return;
             }
@@ -165,7 +175,7 @@ public final class NBTInputStream implements Closeable {
                         return;
                     }
                     is.skipBytes(is.readShort() & 0xFFFF);
-                    readTagPaylodLazy(childType, depth + 1);
+                    readTagPayloadLazy(childType, depth + 1);
                 }
             }
             case NBTConstants.TYPE_INT_ARRAY: {
@@ -181,7 +191,7 @@ public final class NBTInputStream implements Closeable {
         }
     }
 
-    public void readTagPaylodLazy(int type, int depth, StreamDelegate scope) throws IOException {
+    public void readTagPayloadLazy(int type, int depth, StreamDelegate scope) throws IOException {
         switch (type) {
             case NBTConstants.TYPE_END:
                 return;
@@ -293,11 +303,11 @@ public final class NBTInputStream implements Closeable {
                 child = scope.get0();
                 if (child == null) {
                     for (int i = 0; i < length; ++i) {
-                        readTagPaylodLazy(childType, depth + 1);
+                        readTagPayloadLazy(childType, depth + 1);
                     }
                 } else {
                     for (int i = 0; i < length; ++i) {
-                        readTagPaylodLazy(childType, depth + 1, child);
+                        readTagPayloadLazy(childType, depth + 1, child);
                     }
                 }
                 return;
@@ -330,9 +340,9 @@ public final class NBTInputStream implements Closeable {
                     }
                     StreamDelegate child = scope.get(is);
                     if (child == null) {
-                        readTagPaylodLazy(childType, depth + 1);
+                        readTagPayloadLazy(childType, depth + 1);
                     } else {
-                        readTagPaylodLazy(childType, depth + 1, child);
+                        readTagPayloadLazy(childType, depth + 1, child);
                     }
                 }
             }

worldedit-core/src/main/java/com/sk89q/jnbt/NBTOutputStream.java

@@ -32,6 +32,8 @@ import java.util.Map;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
+// THIS CLASS HAS BEEN HEAVILY MODIFIED BY FAWE
+
 /**
  * This class writes <strong>NBT</strong>, or <strong>Named Binary Tag</strong>
  * {@code Tag} objects to an underlying {@code OutputStream}.

worldedit-core/src/main/java/com/sk89q/jnbt/NBTUtils.java

@@ -49,7 +49,7 @@ public final class NBTUtils {
             return "TAG_Byte_Array";
         } else if (clazz.equals(ByteTag.class)) {
             return "TAG_Byte";
-        } else if (CompoundTag.class.isAssignableFrom(clazz)) {
+        } else if (clazz.equals(CompoundTag.class)) {
             return "TAG_Compound";
         } else if (clazz.equals(DoubleTag.class)) {
             return "TAG_Double";

worldedit-core/src/main/java/com/sk89q/jnbt/NamedData.java

@@ -1,41 +0,0 @@
-package com.sk89q.jnbt;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-
-/**
- * Some data with a name
- */
-public class NamedData<T> {
-    private final String name;
-    private final T data;
-
-    /**
-     * Create a new named tag.
-     *
-     * @param name the name
-     * @param data the data
-     */
-    public NamedData(String name, T data) {
-        checkNotNull(name);
-        this.name = name;
-        this.data = data;
-    }
-
-    /**
-     * Get the name of the tag.
-     *
-     * @return the name
-     */
-    public String getName() {
-        return name;
-    }
-
-    /**
-     * Get the tag.
-     *
-     * @return the tag
-     */
-    public T getValue() {
-        return data;
-    }
-}

worldedit-core/src/main/java/com/sk89q/jnbt/ShortTag.java

@@ -19,14 +19,12 @@
 
 package com.sk89q.jnbt;
 
+import com.sk89q.jnbt.fawe.NumberTag;
+
 /**
  * The {@code TAG_Short} tag.
  */
 public final class ShortTag extends NumberTag {
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_SHORT;
-    }
 
     private final short value;
 
@@ -50,4 +48,11 @@ public final class ShortTag extends NumberTag {
         return "TAG_Short(" + value + ")";
     }
 
+    // FAWE Start
+    @Override
+    public int getTypeCode() {
+        return NBTConstants.TYPE_SHORT;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/StringTag.java

@@ -26,11 +26,6 @@ import static com.google.common.base.Preconditions.checkNotNull;
  */
 public final class StringTag extends Tag {
 
-    @Override
-    public int getTypeCode() {
-        return NBTConstants.TYPE_STRING;
-    }
-
     private final String value;
 
     /**
@@ -54,4 +49,11 @@ public final class StringTag extends Tag {
         return "TAG_String(" + value + ")";
     }
 
+    // FAWE Start
+    @Override
+    public int getTypeCode() {
+        return NBTConstants.TYPE_STRING;
+    }
+    // FAWE End
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/Tag.java

@@ -31,10 +31,12 @@ public abstract class Tag {
      */
     public abstract Object getValue();
 
+    // FAWE Start
     public Object toRaw() {
         return getValue();
     }
 
     public abstract int getTypeCode();
+    // FAWE End
 
 }

worldedit-core/src/main/java/com/sk89q/jnbt/fawe/CompressedCompoundTag.java

@@ -7,6 +7,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 public abstract class CompressedCompoundTag<T> extends CompoundTag {
+
     private T in;
 
     public CompressedCompoundTag(T in) {
@@ -41,4 +42,5 @@ public abstract class CompressedCompoundTag<T> extends CompoundTag {
             throw new RuntimeException(e);
         }
     }
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/fawe/CompressedSchematicTag.java

@@ -1,7 +1,9 @@
-package com.sk89q.jnbt;
+package com.sk89q.jnbt.fawe;
 
 import com.boydti.fawe.object.io.FastByteArrayOutputStream;
 import com.boydti.fawe.object.io.FastByteArraysInputStream;
+import com.sk89q.jnbt.CompressedCompoundTag;
+import com.sk89q.jnbt.NBTOutputStream;
 import com.sk89q.worldedit.extent.clipboard.Clipboard;
 import com.sk89q.worldedit.extent.clipboard.io.FastSchematicWriter;
 import net.jpountz.lz4.LZ4BlockInputStream;
@@ -10,6 +12,7 @@ import net.jpountz.lz4.LZ4BlockOutputStream;
 import java.io.IOException;
 
 public class CompressedSchematicTag extends CompressedCompoundTag<Clipboard> {
+
     public CompressedSchematicTag(Clipboard holder) {
         super(holder);
     }
@@ -26,4 +29,5 @@ public class CompressedSchematicTag extends CompressedCompoundTag<Clipboard> {
         FastByteArraysInputStream in = new FastByteArraysInputStream(blocksOut.toByteArrays());
         return new LZ4BlockInputStream(in);
     }
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/fawe/NumberTag.java

@@ -1,6 +1,13 @@
-package com.sk89q.jnbt;
+package com.sk89q.jnbt.fawe;
 
+import com.sk89q.jnbt.Tag;
+
+/**
+ * A numerical {@link Tag}
+ */
 public abstract class NumberTag extends Tag {
+
     @Override
     public abstract Number getValue();
+
 }

worldedit-core/src/main/java/com/sk89q/jnbt/fawe/package-info.java

@@ -0,0 +1,4 @@
+/**
+ * These are classes added by FAWE. They do not exist in WorldEdit
+ */
+package com.sk89q.jnbt.fawe;

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

@@ -125,8 +125,6 @@ import com.sk89q.worldedit.util.formatting.text.TranslatableComponent;
 import com.sk89q.worldedit.world.World;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BaseBlock;
-import com.sk89q.worldedit.world.block.BlockCategories;
-import com.sk89q.worldedit.world.block.BlockID;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
 import com.sk89q.worldedit.world.block.BlockType;
@@ -148,6 +146,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
+import java.util.concurrent.atomic.AtomicInteger;
 
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
@@ -2046,18 +2045,18 @@ public class EditSession extends PassthroughExtent implements AutoCloseable {
 
         int yy;
 
-        double nextXn = invRadiusX;
+        double nextXn = 0;
         forX: for (int x = 0; x <= ceilRadiusX; ++x) {
             final double xn = nextXn;
             double dx = xn * xn;
             nextXn = (x + 1) * invRadiusX;
-            double nextZn = invRadiusZ;
+            double nextZn = 0;
             forZ: for (int z = 0; z <= ceilRadiusZ; ++z) {
                 final double zn = nextZn;
                 double dz = zn * zn;
                 double dxz = dx + dz;
                 nextZn = (z + 1) * invRadiusZ;
-                double nextYn = invRadiusY;
+                double nextYn = 0;
 
                 forY: for (int y = 0; y <= ceilRadiusY; ++y) {
                     final double yn = nextYn;
@@ -2767,7 +2766,7 @@ public class EditSession extends PassthroughExtent implements AutoCloseable {
                 newVset = this.getHollowed(newVset);
             }
         }
-        return setBlocks(newVset, pattern);
+        return this.changes += setBlocks(newVset, pattern);
     }
 
     /**
@@ -2840,7 +2839,7 @@ public class EditSession extends PassthroughExtent implements AutoCloseable {
         if (!filled) {
             vset = getHollowed(vset);
         }
-        return setBlocks(vset, pattern);
+        return this.changes += setBlocks(vset, pattern);
     }
 
     /**
@@ -2892,7 +2891,7 @@ public class EditSession extends PassthroughExtent implements AutoCloseable {
             if (!filled) {
                 newVset = this.getHollowed(newVset);
             }
-            return setBlocks(newVset, pattern);
+            return this.changes += setBlocks(newVset, pattern);
         }
         return changes;
     }
@@ -3008,23 +3007,21 @@ public class EditSession extends PassthroughExtent implements AutoCloseable {
     }
 
     public int makeBiomeShape(final Region region, final Vector3 zero, final Vector3 unit, final BiomeType biomeType,
-                              final String expressionString, final boolean hollow)
-            throws ExpressionException, MaxChangedBlocksException {
+                              final String expressionString, final boolean hollow) throws ExpressionException {
         return makeBiomeShape(region, zero, unit, biomeType, expressionString, hollow, WorldEdit.getInstance().getConfiguration().calculationTimeout);
     }
 
     public int makeBiomeShape(final Region region, final Vector3 zero, final Vector3 unit, final BiomeType biomeType,
-                              final String expressionString, final boolean hollow, final int timeout)
-            throws ExpressionException, MaxChangedBlocksException {
+                              final String expressionString, final boolean hollow, final int timeout) throws ExpressionException {
 
-        final Expression expression = Expression.compile(expressionString, "x", "z");
+        final Expression expression = Expression.compile(expressionString, "x", "y", "z");
         expression.optimize();
 
         final EditSession editSession = this;
         final WorldEditExpressionEnvironment environment = new WorldEditExpressionEnvironment(editSession, unit, zero);
         expression.setEnvironment(environment);
 
-        final int[] timedOut = {0};
+        AtomicInteger timedOut = new AtomicInteger();
         final ArbitraryBiomeShape shape = new ArbitraryBiomeShape(region) {
             @Override
             protected BiomeType getBiome(int x, int y, int z, BiomeType defaultBiomeType) {
@@ -3041,7 +3038,7 @@ public class EditSession extends PassthroughExtent implements AutoCloseable {
                     // TODO: Allow biome setting via a script variable (needs BiomeType<->int mapping)
                     return defaultBiomeType;
                 } catch (ExpressionTimeoutException e) {
-                    timedOut[0] = timedOut[0] + 1;
+                    timedOut.getAndIncrement();
                     return null;
                 } catch (Exception e) {
                     log.warn("Failed to create shape", e);
@@ -3050,10 +3047,10 @@ public class EditSession extends PassthroughExtent implements AutoCloseable {
             }
         };
         int changed = shape.generate(this, biomeType, hollow);
-        if (timedOut[0] > 0) {
+        if (timedOut.get() > 0) {
             throw new ExpressionTimeoutException(
-                    String.format("%d blocks changed. %d blocks took too long to evaluate (increase time with //timeout)",
-                            changed, timedOut[0]));
+                    String.format("%d biomes changed. %d biomes took too long to evaluate (increase time with //timeout)",
+                            changed, timedOut.get()));
         }
         return changed;
     }

worldedit-core/src/main/java/com/sk89q/worldedit/command/BrushCommands.java

@@ -85,7 +85,6 @@ import com.sk89q.worldedit.command.util.CommandPermissionsConditionGenerator;
 import com.sk89q.worldedit.command.util.CreatureButcher;
 import com.sk89q.worldedit.entity.Player;
 import com.sk89q.worldedit.extension.platform.Actor;
-import com.sk89q.worldedit.extension.platform.binding.ProvideBindings;
 import com.sk89q.worldedit.extent.clipboard.Clipboard;
 import com.sk89q.worldedit.extent.clipboard.io.ClipboardFormats;
 import com.sk89q.worldedit.function.Contextual;
@@ -130,6 +129,7 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URI;
+import java.net.URL;
 import java.nio.file.FileSystems;
 import java.util.List;
 
@@ -498,22 +498,23 @@ public class BrushCommands {
         set(context, brush).setSize(radius).setFill(fill);
     }
 
-    @Command(
-        name = "image",
+    @Command(name = "image",
         desc = "Use a height map to paint a surface",
-        descFooter = "Use a height map to paint any surface.\n"
-    )
-    @CommandPermissions("worldedit.brush.stencil")
-    public void imageBrush(LocalSession session, InjectedValueAccess context,
-                           @Arg(desc = "The size of the brush", def = "5")
-                               Expression radius, ProvideBindings.ImageUri imageUri,
-                           @Arg(def = "1", desc = "scale height")
-                               double yscale,
-                           @Switch(name = 'a', desc = "Use image Alpha")
-                               boolean alpha,
-                           @Switch(name = 'f', desc = "Blend the image with existing terrain")
-                               boolean fadeOut) throws WorldEditException, IOException {
-        BufferedImage image = imageUri.load();
+        descFooter = "Use a height map to paint any surface.\n")
+    @CommandPermissions("worldedit.brush.image")
+    public void imageBrush(LocalSession session,
+                           InjectedValueAccess context,
+                           @Arg(desc = "Image URL (imgur only)") String imageURL,
+                           @Arg(desc = "The size of the brush", def = "5") Expression radius,
+                           @Arg(def = "1", desc = "scale height") double yscale,
+                           @Switch(name = 'a', desc = "Use image Alpha") boolean alpha,
+                           @Switch(name = 'f', desc = "Blend the image with existing terrain") boolean fadeOut)
+        throws WorldEditException, IOException {
+        URL url = new URL(imageURL);
+        if (!url.getHost().equalsIgnoreCase("i.imgur.com")) {
+            throw new IOException("Only i.imgur.com links are allowed!");
+        }
+        BufferedImage image = MainUtil.readImage(url);
         worldEdit.checkMaxBrushRadius(radius);
         if (yscale != 1) {
             ImageUtil.scaleAlpha(image, yscale);

worldedit-core/src/main/java/com/sk89q/worldedit/command/ClipboardCommands.java

@@ -277,7 +277,7 @@ public class ClipboardCommands {
     )
     @Deprecated
     @CommandPermissions({"worldedit.clipboard.download"})
-    public void download(final Player player, final LocalSession session, @Arg(name = "format", desc = "String", def = "schem") final String formatName) throws WorldEditException {
+    public void download(final Player player, final LocalSession session, @Arg(name = "format", desc = "String", def = "fast") final String formatName) throws WorldEditException {
         final ClipboardFormat format = ClipboardFormats.findByAlias(formatName);
         if (format == null) {
             player.print(Caption.of("fawe.worldedit.clipboard.clipboard.invalid.format", formatName));

worldedit-core/src/main/java/com/sk89q/worldedit/command/GenerationCommands.java

@@ -58,7 +58,7 @@ import org.enginehub.piston.annotation.param.Arg;
 import org.enginehub.piston.annotation.param.Switch;
 import org.jetbrains.annotations.Range;
 
-import java.awt.RenderingHints;
+import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.io.IOException;
 import java.net.URL;
@@ -131,16 +131,22 @@ public class GenerationCommands {
     )
     @CommandPermissions("worldedit.generation.image")
     @Logging(PLACEMENT)
-    public void image(Actor actor, LocalSession session, EditSession editSession, String argStr, @Arg(desc = "boolean", def = "true") boolean randomize,
-                      @Arg(desc = "TODO", def = "100") int threshold, @Arg(desc = "BlockVector2", def = "") BlockVector2 dimensions) throws WorldEditException, IOException {
+    public void image(Actor actor,
+                      LocalSession session,
+                      EditSession editSession,
+                      @Arg(desc = "Image URL (imgur only)") String imageURL,
+                      @Arg(desc = "boolean", def = "true") boolean randomize,
+                      @Arg(desc = "TODO", def = "100") int threshold,
+                      @Arg(desc = "BlockVector2", def = "") BlockVector2 dimensions) throws WorldEditException, IOException {
         TextureUtil tu = Fawe.get().getCachedTextureUtil(randomize, 0, threshold);
-        URL url = new URL(argStr);
+        URL url = new URL(imageURL);
         if (!url.getHost().equalsIgnoreCase("i.imgur.com")) {
             throw new IOException("Only i.imgur.com links are allowed!");
         }
         BufferedImage image = MainUtil.readImage(url);
         if (dimensions != null) {
-            image = ImageUtil.getScaledInstance(image, dimensions.getBlockX(), dimensions.getBlockZ(), RenderingHints.VALUE_INTERPOLATION_BILINEAR, false);
+            image = ImageUtil.getScaledInstance(image, dimensions.getBlockX(), dimensions.getBlockZ(),
+                RenderingHints.VALUE_INTERPOLATION_BILINEAR, false);
         }
 
         BlockVector3 pos1 = session.getPlacementPosition(actor);

worldedit-core/src/main/java/com/sk89q/worldedit/command/SchematicCommands.java

@@ -147,7 +147,7 @@ public class SchematicCommands {
     @Deprecated
     @CommandPermissions({"worldedit.clipboard.load", "worldedit.schematic.load", "worldedit.schematic.load.web", "worldedit.schematic.load.asset"})
     public void loadall(Player player, LocalSession session,
-                        @Arg(desc = "Format name.", def = "schematic")
+                        @Arg(desc = "Format name.", def = "fast")
                             String formatName,
                         @Arg(desc = "File name.")
                             String filename,
@@ -223,7 +223,7 @@ public class SchematicCommands {
     public void load(Actor actor, LocalSession session,
                      @Arg(desc = "File name.")
                          String filename,
-                     @Arg(desc = "Format name.", def = "sponge")
+                     @Arg(desc = "Format name.", def = "fast")
                          String formatName) throws FilenameException {
         LocalConfiguration config = worldEdit.getConfiguration();
 
@@ -323,7 +323,7 @@ public class SchematicCommands {
     public void save(Actor actor, LocalSession session,
                      @Arg(desc = "File name.")
                          String filename,
-                     @Arg(desc = "Format name.", def = "sponge")
+                     @Arg(desc = "Format name.", def = "fast")
                          String formatName,
                      @Switch(name = 'f', desc = "Overwrite an existing file.")
                          boolean allowOverwrite,

worldedit-core/src/main/java/com/sk89q/worldedit/command/WorldEditCommands.java

@@ -22,7 +22,7 @@ package com.sk89q.worldedit.command;
 import com.boydti.fawe.Fawe;
 import com.boydti.fawe.FaweVersion;
 import com.boydti.fawe.config.Settings;
-import com.boydti.fawe.util.IncendoPaster;
+import com.intellectualsites.paster.IncendoPaster;
 import com.sk89q.worldedit.LocalSession;
 import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.WorldEditException;
@@ -47,6 +47,7 @@ import org.enginehub.piston.annotation.param.Arg;
 import org.enginehub.piston.annotation.param.ArgFlag;
 import org.enginehub.piston.annotation.param.Switch;
 
+import java.io.File;
 import java.io.IOException;
 import java.time.ZoneId;
 import java.time.ZonedDateTime;
@@ -139,7 +140,10 @@ public class WorldEditCommands {
     public void report(Actor actor) throws WorldEditException {
         String dest;
         try {
-            dest = IncendoPaster.debugPaste();
+            final File logFile = new File(Fawe.imp().getDirectory(), "../../logs/latest.log");
+            final File config = new File(Fawe.imp().getDirectory(), "config.yml");
+            final File legacyConfig = new File(Fawe.imp().getDirectory(), "config-legacy.yml");
+            dest = IncendoPaster.debugPaste(logFile, Fawe.imp().getDebugInfo(), config, legacyConfig);
         } catch (IOException e) {
             actor.printInfo(TextComponent.of(e.getMessage()));
             return;

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/BuiltInClipboardFormat.java

@@ -24,8 +24,11 @@ import com.boydti.fawe.object.io.ResettableFileInputStream;
 import com.boydti.fawe.object.schematic.MinecraftStructure;
 import com.boydti.fawe.object.schematic.PNGWriter;
 import com.google.common.collect.ImmutableSet;
+import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.jnbt.NBTInputStream;
 import com.sk89q.jnbt.NBTOutputStream;
+import com.sk89q.jnbt.NamedTag;
+import com.sk89q.jnbt.Tag;
 
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
@@ -35,6 +38,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.Locale;
+import java.util.Map;
 import java.util.Set;
 import java.util.zip.GZIPInputStream;
 import java.util.zip.GZIPOutputStream;
@@ -44,40 +48,7 @@ import java.util.zip.GZIPOutputStream;
  */
 public enum BuiltInClipboardFormat implements ClipboardFormat {
 
-    /**
-     * The Schematic format used by MCEdit.
-     */
-    MCEDIT_SCHEMATIC("mcedit", "mce", "schematic") {
-
-        @Override
-        public String getPrimaryFileExtension() {
-            return "schematic";
-        }
-
-        @Override
-        public ClipboardReader getReader(InputStream inputStream) throws IOException {
-            if (inputStream instanceof FileInputStream) {
-                inputStream = new ResettableFileInputStream((FileInputStream) inputStream);
-            }
-            BufferedInputStream buffered = new BufferedInputStream(inputStream);
-            NBTInputStream nbtStream = new NBTInputStream(new BufferedInputStream(new GZIPInputStream(buffered)));
-            SchematicReader input = new SchematicReader(nbtStream);
-            input.setUnderlyingStream(inputStream);
-            return input;
-        }
-
-        @Override
-        public ClipboardWriter getWriter(OutputStream outputStream) throws IOException {
-            throw new IOException("This format does not support saving, use `schem` or `sponge` as format"); // Is more helpful
-        }
-
-        @Override
-        public boolean isFormat(File file) {
-            String name = file.getName().toLowerCase(Locale.ROOT);
-            return name.endsWith(".schematic") || name.endsWith(".mcedit") || name.endsWith(".mce");
-        }
-    },
-    SPONGE_SCHEMATIC("sponge", "schem") {
+    FAST("fast", "fawe") {
 
         @Override
         public String getPrimaryFileExtension() {
@@ -115,6 +86,129 @@ public enum BuiltInClipboardFormat implements ClipboardFormat {
 
     },
 
+    SPONGE_SCHEMATIC("sponge", "schem") {
+
+        @Override
+        public String getPrimaryFileExtension() {
+            return "schem";
+        }
+        @Override
+        public ClipboardReader getReader(InputStream inputStream) throws IOException {
+            NBTInputStream nbtStream = new NBTInputStream(new GZIPInputStream(inputStream));
+            return new SpongeSchematicReader(nbtStream);
+        }
+
+        @Override
+        public ClipboardWriter getWriter(OutputStream outputStream) throws IOException {
+            NBTOutputStream nbtStream = new NBTOutputStream(new GZIPOutputStream(outputStream));
+            return new SpongeSchematicWriter(nbtStream);
+        }
+
+        @Override
+        public boolean isFormat(File file) {
+            try (NBTInputStream str = new NBTInputStream(new GZIPInputStream(new FileInputStream(file)))) {
+                NamedTag rootTag = str.readNamedTag();
+                if (!rootTag.getName().equals("Schematic")) {
+                    return false;
+                }
+                CompoundTag schematicTag = (CompoundTag) rootTag.getTag();
+
+                // Check
+                Map<String, Tag> schematic = schematicTag.getValue();
+                if (!schematic.containsKey("Version")) {
+                    return false;
+                }
+            } catch (Exception e) {
+                return false;
+            }
+
+            return true;
+        }
+    },
+
+    /**
+     * The Schematic format used by MCEdit.
+     */
+    MCEDIT_SCHEMATIC("mcedit", "mce", "schematic") {
+
+        @Override
+        public String getPrimaryFileExtension() {
+            return "schematic";
+        }
+
+        @Override
+        public ClipboardReader getReader(InputStream inputStream) throws IOException {
+            NBTInputStream nbtStream = new NBTInputStream(new GZIPInputStream(inputStream));
+            return new MCEditSchematicReader(nbtStream);
+        }
+
+        @Override
+        public ClipboardWriter getWriter(OutputStream outputStream) throws IOException {
+            throw new IOException("This format does not support saving");
+        }
+
+        @Override
+        public boolean isFormat(File file) {
+            try (NBTInputStream str = new NBTInputStream(new GZIPInputStream(new FileInputStream(file)))) {
+                NamedTag rootTag = str.readNamedTag();
+                if (!rootTag.getName().equals("Schematic")) {
+                    return false;
+                }
+                CompoundTag schematicTag = (CompoundTag) rootTag.getTag();
+
+                // Check
+                Map<String, Tag> schematic = schematicTag.getValue();
+                if (!schematic.containsKey("Materials")) {
+                    return false;
+                }
+            } catch (Exception e) {
+                return false;
+            }
+            return true;
+        }
+    },
+
+    BROKENENTITY("brokenentity", "legacyentity", "le", "be", "brokenentities", "legacyentities") {
+
+        @Override
+        public String getPrimaryFileExtension() {
+            return "schem";
+        }
+
+        @Override
+        public ClipboardReader getReader(InputStream inputStream) throws IOException {
+            if (inputStream instanceof FileInputStream) {
+                inputStream = new ResettableFileInputStream((FileInputStream) inputStream);
+            }
+            BufferedInputStream buffered = new BufferedInputStream(inputStream);
+            NBTInputStream nbtStream = new NBTInputStream(new BufferedInputStream(new GZIPInputStream(buffered)));
+            FastSchematicReader reader = new FastSchematicReader(nbtStream);
+            reader.setBrokenEntities(true);
+            return reader;
+        }
+
+        @Override
+        public ClipboardWriter getWriter(OutputStream outputStream) throws IOException {
+            OutputStream gzip;
+            if (outputStream instanceof PGZIPOutputStream || outputStream instanceof GZIPOutputStream) {
+                gzip = outputStream;
+            } else {
+                outputStream = new BufferedOutputStream(outputStream);
+                gzip = new PGZIPOutputStream(outputStream);
+            }
+            NBTOutputStream nbtStream = new NBTOutputStream(new BufferedOutputStream(gzip));
+            FastSchematicWriter writer = new FastSchematicWriter(nbtStream);
+            writer.setBrokenEntities(true);
+            return writer;
+        }
+
+        @Override
+        public boolean isFormat(File file) {
+            return false;
+        }
+
+    },
+
     /**
      * The structure block format:
      * http://minecraft.gamepedia.com/Structure_block_file_format

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/FastSchematicReader.java

@@ -30,10 +30,12 @@ import com.boydti.fawe.object.io.FastByteArraysInputStream;
 import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.jnbt.IntTag;
 import com.sk89q.jnbt.NBTInputStream;
+import com.sk89q.jnbt.NamedTag;
 import com.sk89q.jnbt.StringTag;
 import com.sk89q.jnbt.Tag;
 import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.entity.BaseEntity;
+import com.sk89q.worldedit.entity.Entity;
 import com.sk89q.worldedit.extension.input.InputParseException;
 import com.sk89q.worldedit.extension.platform.Capability;
 import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
@@ -45,6 +47,7 @@ import com.sk89q.worldedit.world.DataFixer;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.biome.BiomeTypes;
 import com.sk89q.worldedit.world.block.BlockState;
+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.entity.EntityTypes;
@@ -55,9 +58,11 @@ import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
+import java.util.OptionalInt;
 import java.util.UUID;
 import java.util.function.Function;
 
@@ -70,9 +75,10 @@ public class FastSchematicReader extends NBTSchematicReader {
 
     private static final Logger log = LoggerFactory.getLogger(FastSchematicReader.class);
     private final NBTInputStream inputStream;
-    private DataFixer fixer = null;
+    private DataFixer fixer;
     private int dataVersion = -1;
     private int version = -1;
+    private int faweWritten = -1;
 
     private FastByteArrayOutputStream blocksOut;
     private FaweOutputStream blocks;
@@ -92,6 +98,8 @@ public class FastSchematicReader extends NBTSchematicReader {
     private char[] palette;
     private char[] biomePalette;
     private BlockVector3 min = BlockVector3.ZERO;
+    private boolean brokenEntities = false;
+    private boolean isWorldEdit = false;
 
 
     /**
@@ -105,6 +113,10 @@ public class FastSchematicReader extends NBTSchematicReader {
         this.fixer = WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING).getDataFixer();
     }
 
+    public void setBrokenEntities(boolean brokenEntities) {
+        this.brokenEntities = brokenEntities;
+    }
+
     private String fix(String palettePart) {
         if (fixer == null || dataVersion == -1) {
             return palettePart;
@@ -133,7 +145,7 @@ public class FastSchematicReader extends NBTSchematicReader {
         return fixer.fixUp(DataFixer.FixTypes.BIOME, biomePalettePart, dataVersion);
     }
 
-    public StreamDelegate createDelegate() {
+    public StreamDelegate createVersionDelegate() {
         StreamDelegate root = new StreamDelegate();
         StreamDelegate schematic = root.add("Schematic");
         schematic.add("DataVersion").withInt((i, v) -> dataVersion = v);
@@ -143,6 +155,12 @@ public class FastSchematicReader extends NBTSchematicReader {
                 dataVersion = Constants.DATA_VERSION_MC_1_13_2;
             }
         });
+        return root;
+    }
+
+    public StreamDelegate createDelegate() {
+        StreamDelegate root = new StreamDelegate();
+        StreamDelegate schematic = root.add("Schematic");
         schematic.add("Width").withInt((i, v) -> width = v);
         schematic.add("Height").withInt((i, v) -> height = v);
         schematic.add("Length").withInt((i, v) -> length = v);
@@ -152,17 +170,23 @@ public class FastSchematicReader extends NBTSchematicReader {
         metadata.add("WEOffsetX").withInt((i, v) -> offsetX = v);
         metadata.add("WEOffsetY").withInt((i, v) -> offsetY = v);
         metadata.add("WEOffsetZ").withInt((i, v) -> offsetZ = v);
+        metadata.add("FAWEVersion").withInt((i, v) -> faweWritten = v);
+
+        StreamDelegate worldEditSection = metadata.add("WorldEdit");
+        worldEditSection.withValue((ValueReader<String>) (index, v) -> isWorldEdit = true);
+
 
         StreamDelegate paletteDelegate = schematic.add("Palette");
         paletteDelegate.withValue((ValueReader<Map<String, Object>>) (ignore, v) -> {
             palette = new char[v.size()];
             for (Entry<String, Object> entry : v.entrySet()) {
-                BlockState state = null;
-                try {
+                BlockState state;
                 String palettePart = fix(entry.getKey());
+                try {
                     state = BlockState.get(palettePart);
-                } catch (InputParseException e) {
-                    e.printStackTrace();
+                } catch (InputParseException ignored) {
+                    log.warn("Invalid BlockState in palette: " + palettePart + ". Block will be replaced with air.");
+                    state = BlockTypes.AIR.getDefaultState();
                 }
                 int index = (int) entry.getValue();
                 palette[index] = (char) state.getOrdinal();
@@ -224,10 +248,14 @@ public class FastSchematicReader extends NBTSchematicReader {
     @Override
     public Clipboard read(UUID uuid, Function<BlockVector3, Clipboard> createOutput) throws IOException {
         StreamDelegate root = createDelegate();
+        StreamDelegate versions = createVersionDelegate();
+        inputStream.mark(Integer.MAX_VALUE);
+        inputStream.readNamedTagLazy(versions);
+        inputStream.reset();
         inputStream.readNamedTagLazy(root);
 
         if (version != 1 && version != 2) {
-            throw new IOException("This schematic version is currently not supported");
+            throw new IOException("This schematic version is currently not supported (" + version + ")");
         }
 
         if (blocks != null) {
@@ -240,9 +268,11 @@ public class FastSchematicReader extends NBTSchematicReader {
         biomes = null;
 
         BlockVector3 dimensions = BlockVector3.at(width, height, length);
-        BlockVector3 origin = BlockVector3.ZERO;
+        BlockVector3 origin;
         if (offsetX != Integer.MIN_VALUE && offsetY != Integer.MIN_VALUE  && offsetZ != Integer.MIN_VALUE) {
             origin = BlockVector3.at(-offsetX, -offsetY, -offsetZ);
+        } else {
+            origin = BlockVector3.ZERO;
         }
 
         Clipboard clipboard = createOutput.apply(dimensions);
@@ -326,7 +356,7 @@ public class FastSchematicReader extends NBTSchematicReader {
                     y = pos[1];
                     z = pos[2];
                 }
-                Map<String, Tag> values = tile.getValue();
+                Map<String, Tag> values = new HashMap<>(tile.getValue());
                 Tag id = values.get("Id");
                 if (id != null) {
                     values.put("x", new IntTag(x));
@@ -337,22 +367,19 @@ public class FastSchematicReader extends NBTSchematicReader {
                 values.remove("Id");
                 values.remove("Pos");
 
-                tile = fixBlockEntity(tile);
-                clipboard.setTile(x, y, z, tile);
+                clipboard.setTile(x, y, z, fixBlockEntity(new CompoundTag(values)));
             }
         }
 
         // entities
         if (entities != null && !entities.isEmpty()) {
             for (Map<String, Object> entRaw : entities) {
-                CompoundTag ent = FaweCache.IMP.asTag(entRaw);
-
-                Map<String, Tag> value = ent.getValue();
+                Map<String, Tag> value = new HashMap<>(FaweCache.IMP.asTag(entRaw).getValue());
                 StringTag id = (StringTag) value.get("Id");
                 if (id == null) {
                     id = (StringTag) value.get("id");
                     if (id == null) {
-                        return null;
+                        continue;
                     }
                 }
                 value.put("id", id);
@@ -360,10 +387,29 @@ public class FastSchematicReader extends NBTSchematicReader {
 
                 EntityType type = EntityTypes.parse(id.getValue());
                 if (type != null) {
-                    ent = fixEntity(ent);
+                    final CompoundTag ent = fixEntity(new CompoundTag(value));
                     BaseEntity state = new BaseEntity(type, ent);
                     Location loc = ent.getEntityLocation(clipboard);
+                    if (brokenEntities) {
                         clipboard.createEntity(loc, state);
+                        continue;
+                    }
+                    if (!isWorldEdit && faweWritten == -1) {
+                        int locX = loc.getBlockX();
+                        int locY = loc.getBlockY();
+                        int locZ = loc.getBlockZ();
+                        BlockVector3 max = min.add(dimensions).subtract(BlockVector3.ONE);
+                        if (locX < min.getX() || locY < min.getY() || locZ < min.getZ()
+                            || locX > max.getX() || locY > max.getY() || locZ > max.getZ()) {
+                            for (Entity e : clipboard.getEntities()) {
+                                clipboard.removeEntity(e);
+                            }
+                            log.error("Detected schematic entity outside clipboard region. FAWE will not load entities. "
+                                + "Please try loading the schematic with the format \"legacyentity\"");
+                            break;
+                        }
+                    }
+                    clipboard.createEntity(loc.setPosition(loc.subtract(min.toVector3())), state);
                 } else {
                     log.debug("Invalid entity: " + id);
                 }
@@ -372,7 +418,7 @@ public class FastSchematicReader extends NBTSchematicReader {
         clipboard.setOrigin(origin);
 
         if (!min.equals(BlockVector3.ZERO)) {
-            new BlockArrayClipboard(clipboard, min);
+            clipboard = new BlockArrayClipboard(clipboard, min);
         }
 
         return clipboard;

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/FastSchematicWriter.java

@@ -19,10 +19,10 @@
 
 package com.sk89q.worldedit.extent.clipboard.io;
 
+import com.boydti.fawe.Fawe;
 import com.boydti.fawe.jnbt.streamer.IntValueReader;
 import com.boydti.fawe.object.FaweOutputStream;
 import com.boydti.fawe.util.IOUtil;
-import com.google.common.collect.Maps;
 import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.jnbt.IntArrayTag;
 import com.sk89q.jnbt.ListTag;
@@ -39,6 +39,7 @@ import com.sk89q.worldedit.extent.clipboard.Clipboard;
 import com.sk89q.worldedit.function.visitor.Order;
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.regions.Region;
+import com.sk89q.worldedit.util.Location;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.biome.BiomeTypes;
 import com.sk89q.worldedit.world.block.BaseBlock;
@@ -58,8 +59,6 @@ import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
-import java.util.Objects;
-import java.util.stream.Collectors;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
@@ -72,6 +71,7 @@ public class FastSchematicWriter implements ClipboardWriter {
 
     private static final int MAX_SIZE = Short.MAX_VALUE - Short.MIN_VALUE;
     private final NBTOutputStream outputStream;
+    private boolean brokenEntities = false;
 
     /**
      * Create a new schematic writer.
@@ -83,6 +83,10 @@ public class FastSchematicWriter implements ClipboardWriter {
         this.outputStream = outputStream;
     }
 
+    public void setBrokenEntities(boolean brokenEntities) {
+        this.brokenEntities = brokenEntities;
+    }
+
     @Override
     public void write(Clipboard clipboard) throws IOException {
         // For now always write the latest version. Maybe provide support for earlier if more appear.
@@ -132,6 +136,7 @@ public class FastSchematicWriter implements ClipboardWriter {
                 out1.writeNamedTag("WEOffsetX", offset.getBlockX());
                 out1.writeNamedTag("WEOffsetY", offset.getBlockY());
                 out1.writeNamedTag("WEOffsetZ", offset.getBlockZ());
+                out1.writeNamedTag("FAWEVersion", Fawe.get().getVersion().build);
             });
 
             ByteArrayOutputStream blocksCompressed = new ByteArrayOutputStream();
@@ -157,7 +162,7 @@ public class FastSchematicWriter implements ClipboardWriter {
                 BaseBlock block = pos.getFullBlock(finalClipboard);
                 CompoundTag nbt = block.getNbtData();
                 if (nbt != null) {
-                    Map<String, Tag> values = nbt.getValue();
+                    Map<String, Tag> values = new HashMap<>(nbt.getValue());
 
                     // Positions are kept in NBT, we don't want that.
                     values.remove("x");
@@ -175,7 +180,8 @@ public class FastSchematicWriter implements ClipboardWriter {
                         pos.getZ()
                     }));
                     numTiles++;
-                    tilesOut.writeTagPayload(block.getNbtData());
+
+                    tilesOut.writeTagPayload(new CompoundTag(values));
                 }
 
                 int ordinal = block.getOrdinal();
@@ -240,8 +246,12 @@ public class FastSchematicWriter implements ClipboardWriter {
 
                     // Store our location data, overwriting any
                     values.remove("id");
+                    Location loc = entity.getLocation();
+                    if (!brokenEntities) {
+                        loc = loc.setPosition(loc.add(min.toVector3()));
+                    }
                     values.put("Id", new StringTag(state.getType().getId()));
-                    values.put("Pos", writeVector(entity.getLocation()));
+                    values.put("Pos", writeVector(loc));
                     values.put("Rotation", writeRotation(entity.getLocation()));
 
                     CompoundTag entityTag = new CompoundTag(values);
@@ -311,30 +321,6 @@ public class FastSchematicWriter implements ClipboardWriter {
         }
     }
 
-    private void writeEntities(Clipboard clipboard, NBTOutputStream schematic) throws IOException {
-        List<CompoundTag> entities = clipboard.getEntities().stream().map(e -> {
-            BaseEntity state = e.getState();
-            if (state == null) {
-                return null;
-            }
-            Map<String, Tag> values = Maps.newHashMap();
-            CompoundTag rawData = state.getNbtData();
-            if (rawData != null) {
-                values.putAll(rawData.getValue());
-            }
-            values.remove("id");
-            values.put("Id", new StringTag(state.getType().getId()));
-            values.put("Pos", writeVector(e.getLocation().toVector()));
-            values.put("Rotation", writeRotation(e.getLocation()));
-
-            return new CompoundTag(values);
-        }).filter(Objects::nonNull).collect(Collectors.toList());
-        if (entities.isEmpty()) {
-            return;
-        }
-        schematic.writeNamedTag("Entities", new ListTag(CompoundTag.class, entities));
-    }
-
     @Override
     public void close() throws IOException {
         outputStream.close();

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/FaweFormat.java

@@ -1,4 +0,0 @@
-package com.sk89q.worldedit.extent.clipboard.io;
-
-public class FaweFormat {
-}

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/MCEditSchematicReader.java

@@ -68,9 +68,7 @@ import static com.google.common.base.Preconditions.checkNotNull;
 
 /**
  * Reads schematic files that are compatible with MCEdit and other editors.
- * @deprecated Use SchematicStreamer
  */
-@Deprecated
 public class MCEditSchematicReader extends NBTSchematicReader {
 
     private static final Logger log = LoggerFactory.getLogger(MCEditSchematicReader.class);
@@ -207,7 +205,7 @@ public class MCEditSchematicReader extends NBTSchematicReader {
             if (newBlock != null) {
                 for (NBTCompatibilityHandler handler : COMPATIBILITY_HANDLERS) {
                     if (handler.isAffectedBlock(newBlock)) {
-                        newBlock = handler.updateNBT(block, values);
+                        newBlock = handler.updateNBT(block, values).toImmutableState();
                         if (newBlock == null || values.isEmpty()) {
                             break;
                         }

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/SchematicReader.java

@@ -1,536 +0,0 @@
-/*
- * WorldEdit, a Minecraft world manipulation toolkit
- * Copyright (C) sk89q <http://www.sk89q.com>
- * Copyright (C) WorldEdit team and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package com.sk89q.worldedit.extent.clipboard.io;
-
-import com.boydti.fawe.FaweCache;
-import com.boydti.fawe.jnbt.streamer.StreamDelegate;
-import com.boydti.fawe.jnbt.streamer.ValueReader;
-import com.boydti.fawe.object.FaweInputStream;
-import com.boydti.fawe.object.FaweOutputStream;
-import com.boydti.fawe.object.clipboard.LinearClipboard;
-import com.boydti.fawe.object.io.FastByteArrayOutputStream;
-import com.boydti.fawe.object.io.FastByteArraysInputStream;
-import com.boydti.fawe.object.io.ResettableFileInputStream;
-import com.sk89q.jnbt.CompoundTag;
-import com.sk89q.jnbt.NBTInputStream;
-import com.sk89q.worldedit.entity.BaseEntity;
-import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
-import com.sk89q.worldedit.extent.clipboard.Clipboard;
-import com.sk89q.worldedit.extent.clipboard.io.legacycompat.BannerBlockCompatibilityHandler;
-import com.sk89q.worldedit.extent.clipboard.io.legacycompat.BedBlockCompatibilityHandler;
-import com.sk89q.worldedit.extent.clipboard.io.legacycompat.EntityNBTCompatibilityHandler;
-import com.sk89q.worldedit.extent.clipboard.io.legacycompat.FlowerPotCompatibilityHandler;
-import com.sk89q.worldedit.extent.clipboard.io.legacycompat.NBTCompatibilityHandler;
-import com.sk89q.worldedit.extent.clipboard.io.legacycompat.NoteBlockCompatibilityHandler;
-import com.sk89q.worldedit.extent.clipboard.io.legacycompat.Pre13HangingCompatibilityHandler;
-import com.sk89q.worldedit.extent.clipboard.io.legacycompat.SignCompatibilityHandler;
-import com.sk89q.worldedit.extent.clipboard.io.legacycompat.SkullBlockCompatibilityHandler;
-import com.sk89q.worldedit.math.BlockVector3;
-import com.sk89q.worldedit.registry.state.PropertyKey;
-import com.sk89q.worldedit.util.Direction;
-import com.sk89q.worldedit.util.Location;
-import com.sk89q.worldedit.world.block.BaseBlock;
-import com.sk89q.worldedit.world.block.BlockCategories;
-import com.sk89q.worldedit.world.block.BlockID;
-import com.sk89q.worldedit.world.block.BlockState;
-import com.sk89q.worldedit.world.block.BlockType;
-import com.sk89q.worldedit.world.block.BlockTypeSwitch;
-import com.sk89q.worldedit.world.block.BlockTypeSwitchBuilder;
-import com.sk89q.worldedit.world.entity.EntityType;
-import com.sk89q.worldedit.world.entity.EntityTypes;
-import com.sk89q.worldedit.world.registry.BlockMaterial;
-import com.sk89q.worldedit.world.registry.LegacyMapper;
-import net.jpountz.lz4.LZ4BlockInputStream;
-import net.jpountz.lz4.LZ4BlockOutputStream;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.BufferedInputStream;
-import java.io.EOFException;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.UUID;
-import java.util.function.Function;
-import java.util.zip.GZIPInputStream;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.slf4j.LoggerFactory.getLogger;
-
-/**
- * Reads schematic files based that are compatible with MCEdit and other editors.
- */
-public class SchematicReader implements ClipboardReader {
-
-    private static final Logger log = LoggerFactory.getLogger(SchematicReader.class);
-
-    private static final NBTCompatibilityHandler[] COMPATIBILITY_HANDLERS = {
-        new SignCompatibilityHandler(),
-        new FlowerPotCompatibilityHandler(),
-        new NoteBlockCompatibilityHandler(),
-        new SkullBlockCompatibilityHandler(),
-        new BannerBlockCompatibilityHandler(),
-        new BedBlockCompatibilityHandler()
-    };
-    private static final EntityNBTCompatibilityHandler[] ENTITY_COMPATIBILITY_HANDLERS = {
-        new Pre13HangingCompatibilityHandler()
-    };
-
-    private NBTInputStream inputStream;
-    private InputStream rootStream;
-
-    //    private final DataFixer fixer; TODO
-
-    private FastByteArrayOutputStream idOut = new FastByteArrayOutputStream();
-    private FastByteArrayOutputStream dataOut = new FastByteArrayOutputStream();
-    private FastByteArrayOutputStream addOut;
-    private FastByteArrayOutputStream biomesOut;
-
-    private FaweOutputStream ids;
-    private FaweOutputStream datas;
-    private FaweOutputStream adds;
-    private FaweOutputStream biomes;
-
-    private List<Map<String, Object>> tiles;
-    private List<Map<String, Object>> entities;
-
-    private int width;
-    private int height;
-    private int length;
-    private int offsetX;
-    private int offsetY;
-    private int offsetZ;
-    private int originX;
-    private int originY;
-    private int originZ;
-
-    /**
-     * Create a new instance.
-     *
-     * @param inputStream the input stream to read from
-     */
-    public SchematicReader(NBTInputStream inputStream) {
-        checkNotNull(inputStream);
-        this.inputStream = inputStream;
-    }
-
-    public void setUnderlyingStream(InputStream in) {
-        this.rootStream = in;
-    }
-
-    public StreamDelegate createDelegate() {
-        StreamDelegate root = new StreamDelegate();
-        StreamDelegate schematic = root.add("Schematic");
-        schematic.add("Width").withInt((i, v) -> width = v);
-        schematic.add("Height").withInt((i, v) -> height = v);
-        schematic.add("Length").withInt((i, v) -> length = v);
-
-        schematic.add("WEOriginX").withInt((i, v) -> originX = v);
-        schematic.add("WEOriginY").withInt((i, v) -> originY = v);
-        schematic.add("WEOriginZ").withInt((i, v) -> originZ = v);
-
-        StreamDelegate metadata = schematic.add("Metadata");
-        metadata.add("WEOffsetX").withInt((i, v) -> offsetX = v);
-        metadata.add("WEOffsetY").withInt((i, v) -> offsetY = v);
-        metadata.add("WEOffsetZ").withInt((i, v) -> offsetZ = v);
-
-        StreamDelegate blocksDelegate = schematic.add("Blocks");
-        blocksDelegate.withInfo((length, type) -> ids = new FaweOutputStream(new LZ4BlockOutputStream(idOut)));
-        blocksDelegate.withInt((index, value) -> ids.write(value));
-
-        StreamDelegate dataDelegate = schematic.add("Data");
-        dataDelegate.withInfo((length, type) -> datas = new FaweOutputStream(new LZ4BlockOutputStream(dataOut)));
-        dataDelegate.withInt((index, value) -> datas.write(value));
-
-        StreamDelegate addDelegate = schematic.add("AddBlocks");
-        addDelegate.withInfo((length, type) -> {
-            addOut = new FastByteArrayOutputStream();
-            adds = new FaweOutputStream(new LZ4BlockOutputStream(addOut));
-        });
-        addDelegate.withInt((index, value) -> {
-            if (value != 0) {
-                int first = value & 0x0F;
-                int second = (value & 0xF0) >> 4;
-                adds.write(first);
-                adds.write(second);
-            } else {
-                adds.write(0);
-                adds.write(0);
-            }
-        });
-
-        StreamDelegate tilesDelegate = schematic.add("TileEntities");
-        tilesDelegate.withInfo((length, type) -> tiles = new ArrayList<>(length));
-        tilesDelegate.withElem((ValueReader<Map<String, Object>>) (index, tile) -> tiles.add(tile));
-
-        StreamDelegate entitiesDelegate = schematic.add("Entities");
-        entitiesDelegate.withInfo((length, type) -> entities = new ArrayList<>(length));
-        entitiesDelegate.withElem(
-            (ValueReader<Map<String, Object>>) (index, entity) -> entities.add(entity));
-        return root;
-    }
-
-    private int readCombined(InputStream idIn, InputStream dataIn) throws IOException {
-        return ((idIn.read() & 0xFF) << 4) + (dataIn.read() & 0xF);
-    }
-
-    private int readCombined(InputStream idIn, InputStream dataIn, InputStream addIn) throws IOException {
-        return ((addIn.read() & 0xFF) << 8) + readCombined(idIn, dataIn);
-    }
-
-    private BlockState getBlock(int combined) {
-        BlockState state = LegacyMapper.getInstance().getBlockFromLegacyCombinedId(combined);
-        return state;
-    }
-
-    private void write(int index, BlockState block, LinearClipboard clipboard) {
-        clipboard.setBlock(index, block);
-    }
-
-    private void write(int x, int y, int z, BlockState block, Clipboard clipboard) {
-        clipboard.setBlock(x, y, z, block);
-    }
-
-    private void readwrite(int index, InputStream idIn, InputStream dataIn, LinearClipboard out) throws IOException {
-        readwrite(index, readCombined(idIn, dataIn), out);
-    }
-
-    private void readwrite(int x, int y, int z, InputStream idIn, InputStream dataIn, Clipboard out) throws IOException {
-        readwrite(x, y, z, readCombined(idIn, dataIn), out);
-    }
-
-    private void readwrite(int index, InputStream idIn, InputStream dataIn, InputStream addIn, LinearClipboard out) throws IOException {
-        readwrite(index, readCombined(idIn, dataIn, addIn), out);
-    }
-
-    private void readwrite(int x, int y, int z, InputStream idIn, InputStream dataIn, InputStream addIn, Clipboard out) throws IOException {
-        readwrite(x, y, z, readCombined(idIn, dataIn, addIn), out);
-    }
-
-    private void readwrite(int index, int combined, LinearClipboard out) throws IOException {
-        write(index, getBlock(combined), out);
-    }
-
-    private void readwrite(int x, int y, int z, int combined, Clipboard out) throws IOException {
-        write(x, y, z, getBlock(combined), out);
-    }
-
-    @Override
-    public Clipboard read(UUID uuid, Function<BlockVector3, Clipboard> createOutput) throws IOException {
-        try {
-            return readInternal(uuid, createOutput);
-        } catch (EOFException e) {
-            log.error("EOFException read in schematic. Did you give the schematic the wrong extension?");
-            log.error("We will attempt to rectify your mistake for you and load the schematic assuming it is named .schem not .schematic");
-            e.printStackTrace();
-            final InputStream stream;
-            if (rootStream instanceof FileInputStream) {
-                stream = new ResettableFileInputStream((FileInputStream) rootStream);
-            } else {
-                stream = rootStream;
-            }
-            BufferedInputStream buffered = new BufferedInputStream(stream);
-            NBTInputStream nbtStream = new NBTInputStream(new BufferedInputStream(new GZIPInputStream(buffered)));
-            return (new FastSchematicReader(nbtStream)).read(uuid, createOutput);
-        }
-    }
-
-    private Clipboard readInternal(UUID uuid, Function<BlockVector3, Clipboard> createOutput) throws IOException {
-        StreamDelegate root = createDelegate();
-        inputStream.readNamedTagLazy(root);
-
-        if (ids != null) {
-            ids.close();
-        }
-        if (datas != null) {
-            datas.close();
-        }
-        if (adds != null) {
-            adds.close();
-        }
-        if (biomes != null) {
-            biomes.close();
-        }
-        ids = null;
-        datas = null;
-        adds = null;
-        biomes = null;
-
-        BlockVector3 dimensions = BlockVector3.at(width, height, length);
-        BlockVector3 origin = BlockVector3.ZERO;
-        if (offsetX != Integer.MIN_VALUE && offsetY != Integer.MIN_VALUE  && offsetZ != Integer.MIN_VALUE) {
-            origin = BlockVector3.at(-offsetX, -offsetY, -offsetZ);
-        }
-
-        Clipboard clipboard = createOutput.apply(dimensions);
-        try (InputStream dataIn = new LZ4BlockInputStream(new FastByteArraysInputStream(dataOut.toByteArrays())); InputStream idIn = new LZ4BlockInputStream(new FastByteArraysInputStream(idOut.toByteArrays()))) {
-            if (addOut != null) {
-                try (FaweInputStream addIn = new FaweInputStream(new LZ4BlockInputStream(new FastByteArraysInputStream(addOut.toByteArrays())))) {
-                    if (clipboard instanceof LinearClipboard) {
-                        LinearClipboard linear = (LinearClipboard) clipboard;
-                        for (int y = 0, index = 0; y < height; y++) {
-                            for (int z = 0; z < length; z++) {
-                                for (int x = 0; x < width; x++, index++) {
-                                    readwrite(index, idIn, dataIn, addIn, linear);
-                                }
-                            }
-                        }
-                    } else {
-                        for (int y = 0; y < height; y++) {
-                            for (int z = 0; z < length; z++) {
-                                for (int x = 0; x < width; x++) {
-                                    readwrite(x, y, z, idIn, dataIn, addIn, clipboard);
-                                }
-                            }
-                        }
-                    }
-                }
-            } else {
-                if (clipboard instanceof LinearClipboard) {
-                    LinearClipboard linear = (LinearClipboard) clipboard;
-                    for (int y = 0, index = 0; y < height; y++) {
-                        for (int z = 0; z < length; z++) {
-                            for (int x = 0; x < width; x++, index++) {
-                                readwrite(index, idIn, dataIn, linear);
-                            }
-                        }
-                    }
-                } else {
-                    for (int y = 0; y < height; y++) {
-                        for (int z = 0; z < length; z++) {
-                            for (int x = 0; x < width; x++) {
-                                readwrite(x, y, z, idIn, dataIn, clipboard);
-                            }
-                        }
-                    }
-                }
-            }
-        }
-
-        // tiles
-        if (tiles != null && !tiles.isEmpty()) {
-            outer:
-            for (Map<String, Object> tileRaw : tiles) {
-                CompoundTag tile = FaweCache.IMP.asTag(tileRaw);
-                int x = (int) tileRaw.get("x");
-                int y = (int) tileRaw.get("y");
-                int z = (int) tileRaw.get("z");
-
-                BlockState block = clipboard.getBlock(x, y, z);
-                for (NBTCompatibilityHandler compat : COMPATIBILITY_HANDLERS) {
-                    if (compat.isAffectedBlock(block)) {
-                        block = compat.updateNBT(block, tile.getValue());
-                        BaseBlock baseBlock = block.toBaseBlock(tile);
-                        clipboard.setBlock(x, y, z, baseBlock);
-                        continue outer;
-                    }
-                }
-                clipboard.setTile(x, y, z, tile);
-            }
-        }
-
-        // entities
-        if (entities != null && !entities.isEmpty()) {
-            for (Map<String, Object> entRaw : entities) {
-                String id = (String) entRaw.get("id");
-                if (id == null) {
-                    continue;
-                }
-                entRaw.put("Id", id);
-                EntityType type = EntityTypes.parse(id);
-                if (type != null) {
-                    CompoundTag ent = FaweCache.IMP.asTag(entRaw);
-                    for (EntityNBTCompatibilityHandler compat : ENTITY_COMPATIBILITY_HANDLERS) {
-                        if (compat.isAffectedEntity(type, ent)) {
-                            ent = compat.updateNBT(type, ent);
-                        }
-                    }
-                    BaseEntity state = new BaseEntity(type, ent);
-                    Location loc = ent.getEntityLocation(clipboard);
-                    clipboard.createEntity(loc, state);
-                } else {
-                    getLogger(SchematicReader.class).debug("Invalid entity: " + id);
-                }
-            }
-        }
-        fixStates(clipboard);
-        clipboard.setOrigin(origin);
-
-        BlockVector3 min = BlockVector3.at(originX, originY, originZ);
-        if (!min.equals(BlockVector3.ZERO)) {
-            new BlockArrayClipboard(clipboard, min);
-        }
-        return clipboard;
-    }
-
-    private void fixStates(Clipboard fc) {
-        for (BlockVector3 pos : fc) {
-            BlockState block = pos.getBlock(fc);
-            if (block.getMaterial().isAir()) {
-                continue;
-            }
-
-            int x = pos.getX();
-            int y = pos.getY();
-            int z = pos.getZ();
-
-            BlockType type = block.getBlockType();
-            if (BlockCategories.STAIRS.contains(type)) {
-                Direction facing = block.getState(PropertyKey.FACING);
-
-                BlockVector3 forward = facing.toBlockVector();
-                Direction left = facing.getLeft();
-                Direction right = facing.getRight();
-
-                BlockState forwardBlock = fc.getBlock(x + forward.getBlockX(), y + forward.getBlockY(), z + forward.getBlockZ());
-                BlockType forwardType = forwardBlock.getBlockType();
-                if (forwardType.hasProperty(PropertyKey.SHAPE) && forwardType.hasProperty(PropertyKey.FACING)) {
-                    Direction forwardFacing = forwardBlock.getState(PropertyKey.FACING);
-                    if (forwardFacing == left) {
-                        BlockState rightBlock = fc.getBlock(x + right.toBlockVector().getBlockX(), y + right.toBlockVector().getBlockY(), z + right.toBlockVector().getBlockZ());
-                        BlockType rightType = rightBlock.getBlockType();
-                        if (!rightType.hasProperty(PropertyKey.SHAPE) || rightBlock.getState(PropertyKey.FACING) != facing) {
-                            pos.setBlock(fc, block.with(PropertyKey.SHAPE, "inner_left"));
-                        }
-                        return;
-                    } else if (forwardFacing == right) {
-                        BlockState leftBlock = fc.getBlock(x + left.toBlockVector().getBlockX(), y + left.toBlockVector().getBlockY(), z + left.toBlockVector().getBlockZ());
-                        BlockType leftType = leftBlock.getBlockType();
-                        if (!leftType.hasProperty(PropertyKey.SHAPE) || leftBlock.getState(PropertyKey.FACING) != facing) {
-                            fc.setBlock(x, y, z, block.with(PropertyKey.SHAPE, "inner_right"));
-                        }
-                        return;
-                    }
-                }
-
-                BlockState backwardsBlock = fc.getBlock(x - forward.getBlockX(), y - forward.getBlockY(), z - forward.getBlockZ());
-                BlockType backwardsType = backwardsBlock.getBlockType();
-                if (backwardsType.hasProperty(PropertyKey.SHAPE) && backwardsType.hasProperty(PropertyKey.FACING)) {
-                    Direction backwardsFacing = (Direction) backwardsBlock.getState(PropertyKey.FACING);
-                    if (backwardsFacing == left) {
-                        BlockState rightBlock = fc.getBlock(x + right.toBlockVector().getBlockX(), y + right.toBlockVector().getBlockY(), z + right.toBlockVector().getBlockZ());
-                        BlockType rightType = rightBlock.getBlockType();
-                        if (!rightType.hasProperty(PropertyKey.SHAPE) || rightBlock.getState(PropertyKey.FACING) != facing) {
-                            pos.setBlock(fc, block.with(PropertyKey.SHAPE, "outer_left"));
-                        }
-                        return;
-                    } else if (backwardsFacing == right) {
-                        BlockState leftBlock = fc.getBlock(x + left.toBlockVector().getBlockX(), y + left.toBlockVector().getBlockY(), z + left.toBlockVector().getBlockZ());
-                        BlockType leftType = leftBlock.getBlockType();
-                        if (!leftType.hasProperty(PropertyKey.SHAPE) || leftBlock.getState(PropertyKey.FACING) != facing) {
-                            pos.setBlock(fc, block.with(PropertyKey.SHAPE, "outer_right"));
-                        }
-                        return;
-                    }
-                }
-            } else {
-                int group = group(type);
-                if (group == -1) {
-                    return;
-                }
-                BlockState set = block;
-
-                if (set.getState(PropertyKey.NORTH) == Boolean.FALSE && merge(fc, group, x, y, z - 1)) {
-                    set = set.with(PropertyKey.NORTH, true);
-                }
-                if (set.getState(PropertyKey.EAST) == Boolean.FALSE && merge(fc, group, x + 1, y, z)) {
-                    set = set.with(PropertyKey.EAST, true);
-                }
-                if (set.getState(PropertyKey.SOUTH) == Boolean.FALSE && merge(fc, group, x, y, z + 1)) {
-                    set = set.with(PropertyKey.SOUTH, true);
-                }
-                if (set.getState(PropertyKey.WEST) == Boolean.FALSE && merge(fc, group, x - 1, y, z)) {
-                    set = set.with(PropertyKey.WEST, true);
-                }
-
-                if (group == 2) {
-                    int ns = (set.getState(PropertyKey.NORTH) ? 1 : 0) + ((Boolean) set.getState(PropertyKey.SOUTH) ? 1 : 0);
-                    int ew = (set.getState(PropertyKey.EAST) ? 1 : 0) + ((Boolean) set.getState(PropertyKey.WEST) ? 1 : 0);
-                    if (Math.abs(ns - ew) != 2 || fc.getBlock(x, y + 1, z).getBlockType().getMaterial().isSolid()) {
-                        set = set.with(PropertyKey.UP, true);
-                    }
-                }
-
-                if (set != block) {
-                    pos.setBlock(fc, set);
-                }
-            }
-        }
-    }
-
-
-    private BlockTypeSwitch<Boolean> fullCube = new BlockTypeSwitchBuilder<>(false).add(type -> {
-        BlockMaterial mat = type.getMaterial();
-        return (mat.isFullCube() && !mat.isFragileWhenPushed() && mat.getLightValue() == 0 && mat.isOpaque() && mat.isSolid() && !mat.isTranslucent());
-    }, true).build();
-
-    private boolean merge(Clipboard fc, int group, int x, int y, int z) {
-        BlockState block = fc.getBlock(x, y, z);
-        BlockType type = block.getBlockType();
-        return group(type) == group || fullCube.apply(type);
-    }
-
-    private int group(BlockType type) {
-        switch (type.getInternalId()) {
-            case BlockID.ACACIA_FENCE:
-            case BlockID.BIRCH_FENCE:
-            case BlockID.DARK_OAK_FENCE:
-            case BlockID.JUNGLE_FENCE:
-            case BlockID.OAK_FENCE:
-            case BlockID.SPRUCE_FENCE:
-                return 0;
-            case BlockID.NETHER_BRICK_FENCE:
-                return 1;
-            case BlockID.COBBLESTONE_WALL:
-            case BlockID.MOSSY_COBBLESTONE_WALL:
-                return 2;
-            case BlockID.IRON_BARS:
-            case BlockID.BLACK_STAINED_GLASS_PANE:
-            case BlockID.BLUE_STAINED_GLASS_PANE:
-            case BlockID.BROWN_MUSHROOM_BLOCK:
-            case BlockID.BROWN_STAINED_GLASS_PANE:
-            case BlockID.CYAN_STAINED_GLASS_PANE:
-            case BlockID.GLASS_PANE:
-            case BlockID.GRAY_STAINED_GLASS_PANE:
-            case BlockID.GREEN_STAINED_GLASS_PANE:
-            case BlockID.LIGHT_BLUE_STAINED_GLASS_PANE:
-            case BlockID.LIGHT_GRAY_STAINED_GLASS_PANE:
-            case BlockID.LIME_STAINED_GLASS_PANE:
-            case BlockID.MAGENTA_STAINED_GLASS_PANE:
-            case BlockID.ORANGE_STAINED_GLASS_PANE:
-            case BlockID.PINK_STAINED_GLASS_PANE:
-            case BlockID.PURPLE_STAINED_GLASS_PANE:
-            case BlockID.RED_STAINED_GLASS_PANE:
-            case BlockID.WHITE_STAINED_GLASS_PANE:
-            case BlockID.YELLOW_STAINED_GLASS_PANE:
-                return 3;
-            default:
-                return -1;
-        }
-    }
-
-    @Override
-    public void close() throws IOException {
-        inputStream.close();
-    }
-}

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/SpongeSchematicReader.java

@@ -68,7 +68,6 @@ import static com.google.common.base.Preconditions.checkNotNull;
 /**
  * Reads schematic files using the Sponge Schematic Specification.
  */
-@Deprecated // High mem usage + slow
 public class SpongeSchematicReader extends NBTSchematicReader {
 
     private static final Logger log = LoggerFactory.getLogger(SpongeSchematicReader.class);
@@ -102,6 +101,12 @@ public class SpongeSchematicReader extends NBTSchematicReader {
             return readVersion1(schematicTag);
         } else if (schematicVersion == 2) {
             dataVersion = requireTag(schematic, "DataVersion", IntTag.class).getValue();
+            if (dataVersion < 0) {
+                log.warn("Schematic has an unknown data version ({}). Data may be incompatible.",
+                    dataVersion);
+                // Do not DFU unknown data
+                dataVersion = liveDataVersion;
+            }
             if (dataVersion > liveDataVersion) {
                 log.warn("Schematic was made in a newer Minecraft version ({} > {}). Data may be incompatible.",
                     dataVersion, liveDataVersion);
@@ -130,7 +135,11 @@ public class SpongeSchematicReader extends NBTSchematicReader {
             if (schematicVersion == 1) {
                 return OptionalInt.of(Constants.DATA_VERSION_MC_1_13_2);
             } else if (schematicVersion == 2) {
-                return OptionalInt.of(requireTag(schematic, "DataVersion", IntTag.class).getValue());
+                int dataVersion = requireTag(schematic, "DataVersion", IntTag.class).getValue();
+                if (dataVersion < 0) {
+                    return OptionalInt.empty();
+                }
+                return OptionalInt.of(dataVersion);
             }
             return OptionalInt.empty();
         } catch (IOException e) {
@@ -140,9 +149,6 @@ public class SpongeSchematicReader extends NBTSchematicReader {
 
     private CompoundTag getBaseTag() throws IOException {
         NamedTag rootTag = inputStream.readNamedTag();
-        if (!rootTag.getName().equals("Schematic")) {
-            throw new IOException("Tag 'Schematic' does not exist or is not first");
-        }
         CompoundTag schematicTag = (CompoundTag) rootTag.getTag();
 
         // Check
@@ -321,8 +327,8 @@ public class SpongeSchematicReader extends NBTSchematicReader {
             }
             BiomeType biome = BiomeTypes.get(key);
             if (biome == null) {
-                log.warn("Unknown biome type :" + key +
-                             " in palette. Are you missing a mod or using a schematic made in a newer version of Minecraft?");
+                log.warn("Unknown biome type :" + key
+                    + " in palette. Are you missing a mod or using a schematic made in a newer version of Minecraft?");
             }
             Tag idTag = palettePart.getValue();
             if (!(idTag instanceof IntTag)) {

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/SpongeSchematicWriter.java

@@ -19,11 +19,10 @@
 
 package com.sk89q.worldedit.extent.clipboard.io;
 
+import com.boydti.fawe.Fawe;
 import com.google.common.collect.Maps;
 import com.sk89q.jnbt.ByteArrayTag;
 import com.sk89q.jnbt.CompoundTag;
-import com.sk89q.jnbt.DoubleTag;
-import com.sk89q.jnbt.FloatTag;
 import com.sk89q.jnbt.IntArrayTag;
 import com.sk89q.jnbt.IntTag;
 import com.sk89q.jnbt.ListTag;
@@ -36,7 +35,6 @@ import com.sk89q.worldedit.entity.BaseEntity;
 import com.sk89q.worldedit.extension.platform.Capability;
 import com.sk89q.worldedit.extent.clipboard.Clipboard;
 import com.sk89q.worldedit.math.BlockVector3;
-import com.sk89q.worldedit.math.Vector3;
 import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.util.Location;
 import com.sk89q.worldedit.world.biome.BiomeType;
@@ -56,7 +54,6 @@ import static com.google.common.base.Preconditions.checkNotNull;
 /**
  * Writes schematic files using the Sponge schematic format.
  */
-@Deprecated // High mem usage + slow
 public class SpongeSchematicWriter implements ClipboardWriter {
 
     private static final int CURRENT_VERSION = 2;
@@ -114,6 +111,7 @@ public class SpongeSchematicWriter implements ClipboardWriter {
         metadata.put("WEOffsetX", new IntTag(offset.getBlockX()));
         metadata.put("WEOffsetY", new IntTag(offset.getBlockY()));
         metadata.put("WEOffsetZ", new IntTag(offset.getBlockZ()));
+        metadata.put("FAWEVersion", new IntTag(Fawe.get().getVersion().build));
 
         schematic.put("Metadata", new CompoundTag(metadata));
 
@@ -268,21 +266,6 @@ public class SpongeSchematicWriter implements ClipboardWriter {
         schematic.put("Entities", new ListTag(CompoundTag.class, entities));
     }
 
-    public Tag writeVector(Vector3 vector) {
-        List<DoubleTag> list = new ArrayList<>();
-        list.add(new DoubleTag(vector.getX()));
-        list.add(new DoubleTag(vector.getY()));
-        list.add(new DoubleTag(vector.getZ()));
-        return new ListTag(DoubleTag.class, list);
-    }
-
-    public Tag writeRotation(Location location) {
-        List<FloatTag> list = new ArrayList<>();
-        list.add(new FloatTag(location.getYaw()));
-        list.add(new FloatTag(location.getPitch()));
-        return new ListTag(FloatTag.class, list);
-    }
-
     @Override
     public void close() throws IOException {
         outputStream.close();

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/legacycompat/BannerBlockCompatibilityHandler.java

@@ -24,9 +24,8 @@ import com.sk89q.jnbt.CompoundTagBuilder;
 import com.sk89q.jnbt.IntTag;
 import com.sk89q.jnbt.ListTag;
 import com.sk89q.jnbt.Tag;
-import com.sk89q.worldedit.registry.state.DirectionalProperty;
-import com.sk89q.worldedit.registry.state.IntegerProperty;
 import com.sk89q.worldedit.registry.state.Property;
+import com.sk89q.worldedit.util.Direction;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
 import com.sk89q.worldedit.world.block.BlockType;
@@ -38,15 +37,15 @@ import java.util.Map;
 
 public class BannerBlockCompatibilityHandler implements NBTCompatibilityHandler {
 
-    private static final DirectionalProperty FacingProperty;
-    private static final IntegerProperty RotationProperty;
+    private static final Property<Direction> FacingProperty;
+    private static final Property<Integer> RotationProperty;
 
     static {
-        DirectionalProperty tempFacing;
-        IntegerProperty tempRotation;
+        Property<Direction> tempFacing;
+        Property<Integer> tempRotation;
         try {
-            tempFacing = (DirectionalProperty) (Property<?>) BlockTypes.WHITE_WALL_BANNER.getProperty("facing");
-            tempRotation = (IntegerProperty) (Property<?>) BlockTypes.WHITE_BANNER.getProperty("rotation");
+            tempFacing = BlockTypes.WHITE_WALL_BANNER.getProperty("facing");
+            tempRotation = BlockTypes.WHITE_BANNER.getProperty("rotation");
         } catch (NullPointerException | IllegalArgumentException | ClassCastException e) {
             tempFacing = null;
             tempRotation = null;
@@ -62,7 +61,7 @@ public class BannerBlockCompatibilityHandler implements NBTCompatibilityHandler
     }
 
     @Override
-    public <B extends BlockStateHolder<B>> B updateNBT(B block, Map<String, Tag> values) {
+    public <B extends BlockStateHolder<B>> BlockStateHolder<?> updateNBT(B block, Map<String, Tag> values) {
         Tag typeTag = values.get("Base");
         if (typeTag instanceof IntTag) {
             boolean isWall = block.getBlockType() == BlockTypes.WHITE_WALL_BANNER;
@@ -73,10 +72,10 @@ public class BannerBlockCompatibilityHandler implements NBTCompatibilityHandler
                     BlockState state = type.getDefaultState();
 
                     if (isWall) {
-                        Property facingProp = type.getProperty("facing");
+                        Property<Direction> facingProp = type.getProperty("facing");
                         state = state.with(facingProp, block.getState(FacingProperty));
                     } else {
-                        Property rotationProp = type.getProperty("rotation");
+                        Property<Integer> rotationProp = type.getProperty("rotation");
                         state = state.with(rotationProp, block.getState(RotationProperty));
                     }
 
@@ -102,7 +101,7 @@ public class BannerBlockCompatibilityHandler implements NBTCompatibilityHandler
                         }
                         values.put("Patterns", new ListTag(((ListTag) patternsTag).getType(), tempList));
                     }
-                    return (B) state;
+                    return state;
                 }
             }
         }

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/legacycompat/BedBlockCompatibilityHandler.java

@@ -21,9 +21,8 @@ package com.sk89q.worldedit.extent.clipboard.io.legacycompat;
 
 import com.sk89q.jnbt.IntTag;
 import com.sk89q.jnbt.Tag;
-import com.sk89q.worldedit.registry.state.DirectionalProperty;
-import com.sk89q.worldedit.registry.state.EnumProperty;
 import com.sk89q.worldedit.registry.state.Property;
+import com.sk89q.worldedit.util.Direction;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
 import com.sk89q.worldedit.world.block.BlockType;
@@ -31,23 +30,24 @@ import com.sk89q.worldedit.world.block.BlockTypes;
 
 import java.util.Map;
 
+@SuppressWarnings("")
 public class BedBlockCompatibilityHandler implements NBTCompatibilityHandler {
 
-    private static final DirectionalProperty FacingProperty;
-    private static final EnumProperty PartProperty;
+    private static final Property<Direction> FACING_PROPERTY;
+    private static final Property<String> PART_PROPERTY;
 
     static {
-        DirectionalProperty tempFacing;
-        EnumProperty tempPart;
+        Property<Direction> tempFacing;
+        Property<String> tempPart;
         try {
-            tempFacing = (DirectionalProperty) (Property<?>) BlockTypes.RED_BED.getProperty("facing");
-            tempPart = (EnumProperty) (Property<?>) BlockTypes.RED_BED.getProperty("part");
+            tempFacing = BlockTypes.RED_BED.getProperty("facing");
+            tempPart = BlockTypes.RED_BED.getProperty("part");
         } catch (NullPointerException | IllegalArgumentException | ClassCastException e) {
             tempFacing = null;
             tempPart = null;
         }
-        FacingProperty = tempFacing;
-        PartProperty = tempPart;
+        FACING_PROPERTY = tempFacing;
+        PART_PROPERTY = tempPart;
     }
 
     @Override
@@ -56,7 +56,7 @@ public class BedBlockCompatibilityHandler implements NBTCompatibilityHandler {
     }
 
     @Override
-    public <B extends BlockStateHolder<B>> B updateNBT(B block, Map<String, Tag> values) {
+    public <B extends BlockStateHolder<B>> BlockStateHolder<?> updateNBT(B block, Map<String, Tag> values) {
         Tag typeTag = values.get("color");
         if (typeTag instanceof IntTag) {
             String bedType = convertBedType(((IntTag) typeTag).getValue());
@@ -65,17 +65,17 @@ public class BedBlockCompatibilityHandler implements NBTCompatibilityHandler {
                 if (type != null) {
                     BlockState state = type.getDefaultState();
 
-                    Property facingProp = type.getProperty("facing");
-                    state = state.with(facingProp, block.getState(FacingProperty));
+                    Property<Direction> facingProp = type.getProperty("facing");
+                    state = state.with(facingProp, block.getState(FACING_PROPERTY));
 
-                    Property occupiedProp = type.getProperty("occupied");
+                    Property<Boolean> occupiedProp = type.getProperty("occupied");
                     state = state.with(occupiedProp, false);
 
-                    Property partProp = type.getProperty("part");
-                    state = state.with(partProp, block.getState(PartProperty));
+                    Property<String> partProp = type.getProperty("part");
+                    state = state.with(partProp, block.getState(PART_PROPERTY));
 
                     values.remove("color");
-                    return (B) state;
+                    return state;
                 }
             }
         }

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/legacycompat/FlowerPotCompatibilityHandler.java

@@ -37,12 +37,12 @@ public class FlowerPotCompatibilityHandler implements NBTCompatibilityHandler {
     }
 
     @Override
-    public <B extends BlockStateHolder<B>> B updateNBT(B block, Map<String, Tag> values) {
+    public <B extends BlockStateHolder<B>> BlockStateHolder<?> updateNBT(B block, Map<String, Tag> values) {
         Tag item = values.get("Item");
         if (item instanceof StringTag) {
             String id = ((StringTag) item).getValue();
             if (id.isEmpty()) {
-                return (B) BlockTypes.FLOWER_POT.getDefaultState();
+                return BlockTypes.FLOWER_POT.getDefaultState();
             }
             int data = 0;
             Tag dataTag = values.get("Data");
@@ -52,7 +52,7 @@ public class FlowerPotCompatibilityHandler implements NBTCompatibilityHandler {
             BlockState newState = convertLegacyBlockType(id, data);
             if (newState != null) {
                 values.clear();
-                return (B) newState; // generics pls :\
+                return newState;
             }
         }
         return block;

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/legacycompat/NBTCompatibilityHandler.java

@@ -26,5 +26,6 @@ import java.util.Map;
 
 public interface NBTCompatibilityHandler {
     <B extends BlockStateHolder<B>> boolean isAffectedBlock(B block);
-    <B extends BlockStateHolder<B>> B updateNBT(B block, Map<String, Tag> values);
+
+    <B extends BlockStateHolder<B>> BlockStateHolder<?> updateNBT(B block, Map<String, Tag> values);
 }

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/legacycompat/NoteBlockCompatibilityHandler.java

@@ -47,7 +47,7 @@ public class NoteBlockCompatibilityHandler implements NBTCompatibilityHandler {
     }
 
     @Override
-    public <B extends BlockStateHolder<B>> B updateNBT(B block, Map<String, Tag> values) {
+    public <B extends BlockStateHolder<B>> BlockStateHolder<?> updateNBT(B block, Map<String, Tag> values) {
         // note that instrument was not stored (in state or nbt) previously.
         // it will be updated to the block below when it gets set into the world for the first time
         Tag noteTag = values.get("note");
@@ -55,7 +55,7 @@ public class NoteBlockCompatibilityHandler implements NBTCompatibilityHandler {
             Byte note = ((ByteTag) noteTag).getValue();
             if (note != null) {
                 values.clear();
-                return (B) block.with(NoteProperty, (int) note).toImmutableState();
+                return block.with(NoteProperty, (int) note).toImmutableState();
             }
         }
         return block;

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/legacycompat/SignCompatibilityHandler.java

@@ -26,8 +26,8 @@ import com.google.gson.JsonPrimitive;
 import com.google.gson.JsonSyntaxException;
 import com.sk89q.jnbt.StringTag;
 import com.sk89q.jnbt.Tag;
+import com.sk89q.worldedit.internal.util.DeprecationUtil;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
-import com.sk89q.worldedit.world.block.BlockTypes;
 
 import java.util.Map;
 
@@ -35,11 +35,11 @@ public class SignCompatibilityHandler implements NBTCompatibilityHandler {
 
     @Override
     public <B extends BlockStateHolder<B>> boolean isAffectedBlock(B block) {
-        return block.getBlockType() == BlockTypes.SIGN || block.getBlockType() == BlockTypes.WALL_SIGN;
+        return DeprecationUtil.isSign(block.getBlockType());
     }
 
     @Override
-    public <B extends BlockStateHolder<B>> B updateNBT(B block, Map<String, Tag> values) {
+    public <B extends BlockStateHolder<B>> BlockStateHolder<?> updateNBT(B block, Map<String, Tag> values) {
         for (int i = 0; i < 4; ++i) {
             String key = "Text" + (i + 1);
             Tag value = values.get(key);

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/legacycompat/SkullBlockCompatibilityHandler.java

@@ -21,8 +21,8 @@ package com.sk89q.worldedit.extent.clipboard.io.legacycompat;
 
 import com.sk89q.jnbt.ByteTag;
 import com.sk89q.jnbt.Tag;
-import com.sk89q.worldedit.registry.state.DirectionalProperty;
 import com.sk89q.worldedit.registry.state.Property;
+import com.sk89q.worldedit.util.Direction;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
 import com.sk89q.worldedit.world.block.BlockType;
@@ -32,12 +32,12 @@ import java.util.Map;
 
 public class SkullBlockCompatibilityHandler implements NBTCompatibilityHandler {
 
-    private static final DirectionalProperty FacingProperty;
+    private static final Property<Direction> FacingProperty;
 
     static {
-        DirectionalProperty tempFacing;
+        Property<Direction>  tempFacing;
         try {
-            tempFacing = (DirectionalProperty) (Property<?>) BlockTypes.SKELETON_WALL_SKULL.getProperty("facing");
+            tempFacing = BlockTypes.SKELETON_WALL_SKULL.getProperty("facing");
         } catch (NullPointerException | IllegalArgumentException | ClassCastException e) {
             tempFacing = null;
         }
@@ -51,7 +51,7 @@ public class SkullBlockCompatibilityHandler implements NBTCompatibilityHandler {
     }
 
     @Override
-    public <B extends BlockStateHolder<B>> B updateNBT(B block, Map<String, Tag> values) {
+    public <B extends BlockStateHolder<B>> BlockStateHolder<?> updateNBT(B block, Map<String, Tag> values) {
         boolean isWall = block.getBlockType() == BlockTypes.SKELETON_WALL_SKULL;
         Tag typeTag = values.get("SkullType");
         if (typeTag instanceof ByteTag) {
@@ -61,18 +61,18 @@ public class SkullBlockCompatibilityHandler implements NBTCompatibilityHandler {
                 if (type != null) {
                     BlockState state = type.getDefaultState();
                     if (isWall) {
-                        Property newProp = type.getProperty("facing");
+                        Property<Direction> newProp = type.getProperty("facing");
                         state = state.with(newProp, block.getState(FacingProperty));
                     } else {
                         Tag rotTag = values.get("Rot");
                         if (rotTag instanceof ByteTag) {
-                            Property newProp = type.getProperty("rotation");
+                            Property<Integer> newProp = type.getProperty("rotation");
                             state = state.with(newProp, (int) ((ByteTag) rotTag).getValue());
                         }
                     }
                     values.remove("SkullType");
                     values.remove("Rot");
-                    return (B) state;
+                    return state;
                 }
             }
         }

worldedit-core/src/main/java/com/sk89q/worldedit/function/mask/BlockCategoryMask.java

@@ -22,6 +22,7 @@ package com.sk89q.worldedit.function.mask;
 import com.sk89q.worldedit.extent.Extent;
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.world.block.BlockCategory;
+import com.sk89q.worldedit.world.block.BlockTypes;
 
 import javax.annotation.Nullable;
 
@@ -61,4 +62,9 @@ public class BlockCategoryMask extends AbstractExtentMask {
     public Mask copy() {
         return new BlockCategoryMask(getExtent(), category);
     }
+
+    @Override
+    public boolean replacesAir() {
+        return category.contains(BlockTypes.AIR);
+    }
 }

worldedit-core/src/main/java/com/sk89q/worldedit/function/mask/BlockMask.java

@@ -29,12 +29,12 @@ import com.sk89q.worldedit.world.block.BlockTypes;
 import com.sk89q.worldedit.world.block.BlockTypesCache;
 import com.sk89q.worldedit.world.block.ImmutableBaseBlock;
 
+import javax.annotation.Nullable;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 import java.util.function.Predicate;
-import javax.annotation.Nullable;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
@@ -185,7 +185,7 @@ public class BlockMask extends ABlockMask {
 
     @Override
     public boolean test(BlockState state) {
-        return ordinals[state.getOrdinal()] || replacesAir() && state.getOrdinal() <= 3;
+        return ordinals[state.getOrdinal()] || replacesAir() && state.getOrdinal() == 0;
     }
 
     @Override
@@ -259,19 +259,16 @@ public class BlockMask extends ABlockMask {
 
         int setTypes = 0;
         BlockType setType = null;
-        BlockType unsetType = null;
         int totalTypes = 0;
 
         for (BlockType type : BlockTypesCache.values) {
             if (type != null) {
                 totalTypes++;
                 boolean hasAll = true;
-                boolean hasAny = false;
                 List<BlockState> all = type.getAllStates();
                 for (BlockState state : all) {
                     totalStates++;
                     hasAll &= test(state);
-                    hasAny = true;
                 }
                 if (hasAll) {
                     setTypes++;
@@ -326,6 +323,7 @@ public class BlockMask extends ABlockMask {
             cloned[BlockTypes.AIR.getDefaultState().getOrdinal()] = false;
             cloned[BlockTypes.CAVE_AIR.getDefaultState().getOrdinal()] = false;
             cloned[BlockTypes.VOID_AIR.getDefaultState().getOrdinal()] = false;
+            cloned[0] = false;
         }
         return new BlockMask(getExtent(), cloned);
     }