Support different NMS block classes depending on version.

- The .class files in the contrib folder of the zip go in
  plugins/WorldEdit/nmsblocks
- This allows us to swap new class files in without releasing
a completely new version each time
- Whatever version the last release is for has an inbuilt fallback
- If the plugin and server are mismatched and you have nothing in
  nmsblocks you're screwed

contrib/nmsblocks/CBXNmsBlock_146.java

@@ -0,0 +1,442 @@
+// $Id$
+/*
+ * This file is a part of WorldEdit.
+ * Copyright (c) sk89q <http://www.sk89q.com>
+ * Copyright (c) the WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * (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
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Logger;
+
+import net.minecraft.server.v1_4_6.NBTBase;
+import net.minecraft.server.v1_4_6.NBTTagByte;
+import net.minecraft.server.v1_4_6.NBTTagByteArray;
+import net.minecraft.server.v1_4_6.NBTTagCompound;
+import net.minecraft.server.v1_4_6.NBTTagDouble;
+import net.minecraft.server.v1_4_6.NBTTagEnd;
+import net.minecraft.server.v1_4_6.NBTTagFloat;
+import net.minecraft.server.v1_4_6.NBTTagInt;
+import net.minecraft.server.v1_4_6.NBTTagIntArray;
+import net.minecraft.server.v1_4_6.NBTTagList;
+import net.minecraft.server.v1_4_6.NBTTagLong;
+import net.minecraft.server.v1_4_6.NBTTagShort;
+import net.minecraft.server.v1_4_6.NBTTagString;
+import net.minecraft.server.v1_4_6.TileEntity;
+
+import org.bukkit.World;
+import org.bukkit.craftbukkit.v1_4_6.CraftWorld;
+
+import com.sk89q.jnbt.ByteArrayTag;
+import com.sk89q.jnbt.ByteTag;
+import com.sk89q.jnbt.CompoundTag;
+import com.sk89q.jnbt.DoubleTag;
+import com.sk89q.jnbt.EndTag;
+import com.sk89q.jnbt.FloatTag;
+import com.sk89q.jnbt.IntArrayTag;
+import com.sk89q.jnbt.IntTag;
+import com.sk89q.jnbt.ListTag;
+import com.sk89q.jnbt.LongTag;
+import com.sk89q.jnbt.NBTConstants;
+import com.sk89q.jnbt.ShortTag;
+import com.sk89q.jnbt.StringTag;
+import com.sk89q.jnbt.Tag;
+import com.sk89q.worldedit.Vector;
+import com.sk89q.worldedit.blocks.BaseBlock;
+import com.sk89q.worldedit.blocks.TileEntityBlock;
+import com.sk89q.worldedit.bukkit.BukkitWorld;
+import com.sk89q.worldedit.bukkit.NmsBlock;
+import com.sk89q.worldedit.data.DataException;
+import com.sk89q.worldedit.foundation.Block;
+
+/**
+ * This version needs to be built on CraftBukkit 1.4.6 R0.1 or higher
+ */
+public class CBXNmsBlock_146 extends NmsBlock {
+
+    private static final Logger logger = Logger.getLogger(CBXNmsBlock_146.class.getCanonicalName());
+    private static Field compoundMapField;
+    private static final Field nmsBlock_isTileEntityField; // The field is deobfuscated but the method isn't. No idea why.
+    private NBTTagCompound nbtData = null;
+
+    static {
+        Field field;
+        try {
+            field = net.minecraft.server.v1_4_6.Block.class.getDeclaredField("isTileEntity");
+            field.setAccessible(true);
+        } catch (Throwable e) {
+            // logger.severe("Could not find NMS block tile entity field!");
+            field = null;
+        }
+        nmsBlock_isTileEntityField = field;
+    }
+
+    public static boolean verify() {
+        return nmsBlock_isTileEntityField != null;
+    }
+
+    /**
+     * Create a new instance with a given type ID, data value, and previous
+     * {@link TileEntityBlock}-implementing object.
+     *
+     * @param type block type ID
+     * @param data data value
+     * @param tileEntityBlock tile entity block
+     */
+    public CBXNmsBlock_146(int type, int data, TileEntityBlock tileEntityBlock) {
+        super(type, data);
+
+        nbtData = (NBTTagCompound) fromNative(tileEntityBlock.getNbtData());
+    }
+
+    /**
+     * Create a new instance with a given type ID, data value, and raw
+     * {@link NBTTagCompound} copy.
+     *
+     * @param type block type ID
+     * @param data data value
+     * @param nbtData raw NBT data
+     */
+    public CBXNmsBlock_146(int type, int data, NBTTagCompound nbtData) {
+        super(type, data);
+
+        this.nbtData = nbtData;
+    }
+
+    /**
+     * Build a {@link NBTTagCompound} that has valid coordinates.
+     *
+     * @param pt coordinates to set
+     * @return the tag compound
+     */
+    private NBTTagCompound getNmsData(Vector pt) {
+        if (nbtData == null) {
+            return null;
+        }
+
+        nbtData.set("x", new NBTTagInt("x", pt.getBlockX()));
+        nbtData.set("y", new NBTTagInt("y", pt.getBlockY()));
+        nbtData.set("z", new NBTTagInt("z", pt.getBlockZ()));
+
+        return nbtData;
+    }
+
+    @Override
+    public boolean hasNbtData() {
+        return nbtData != null;
+    }
+
+    @Override
+    public String getNbtId() {
+        if (nbtData == null) {
+            return "";
+        }
+
+        return nbtData.getString("id");
+    }
+
+    @Override
+    public CompoundTag getNbtData() {
+        if (nbtData == null) {
+            return new CompoundTag(getNbtId(),
+                    new HashMap<String, Tag>());
+        }
+        return (CompoundTag) toNative(nbtData);
+    }
+
+    @Override
+    public void setNbtData(CompoundTag tag) throws DataException {
+        if (tag == null) {
+            this.nbtData = null;
+        }
+        this.nbtData = (NBTTagCompound) fromNative(tag);
+    }
+
+    /**
+     * Build an instance from the given information.
+     *
+     * @param world world to get the block from
+     * @param position position to get the block at
+     * @param type type ID of block
+     * @param data data value of block
+     * @return the block, or null
+     */
+    public static CBXNmsBlock_146 get(World world, Vector position, int type, int data) {
+        if (!hasTileEntity(type)) {
+            return null;
+        }
+
+        TileEntity te = ((CraftWorld) world).getHandle().getTileEntity(
+                position.getBlockX(), position.getBlockY(), position.getBlockZ());
+
+        if (te != null) {
+            NBTTagCompound tag = new NBTTagCompound();
+            te.b(tag); // Load data
+            return new CBXNmsBlock_146(type, data, tag);
+        }
+
+        return null;
+    }
+
+    /**
+     * Set an instance or a {@link TileEntityBlock} to the given position.
+     *
+     * @param world world to set the block in
+     * @param position position to set the block at
+     * @param block the block to set
+     * @return true if tile entity data was copied to the world
+     */
+    public static boolean set(World world, Vector position, BaseBlock block) {
+        NBTTagCompound data = null;
+        if (!hasTileEntity(world.getBlockTypeIdAt(position.getBlockX(), position.getBlockY(), position.getBlockZ()))) {
+            return false;
+        }
+
+        if (block instanceof CBXNmsBlock_146) {
+            CBXNmsBlock_146 nmsProxyBlock = (CBXNmsBlock_146) block;
+            data = nmsProxyBlock.getNmsData(position);
+        } else if (block instanceof TileEntityBlock) {
+            CBXNmsBlock_146 nmsProxyBlock = new CBXNmsBlock_146(
+                    block.getId(), block.getData(), block);
+            data = nmsProxyBlock.getNmsData(position);
+        }
+
+        if (data != null) {
+            TileEntity te = ((CraftWorld) world).getHandle().getTileEntity(
+                    position.getBlockX(), position.getBlockY(), position.getBlockZ());
+            if (te != null) {
+                te.a(data); // Load data
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Tries to set a block 'safely', as in setting the block data to the location, and
+     * then triggering physics only at the end.
+     *
+     * @param world world to set the block in
+     * @param position position to set the block at
+     * @param block the block to set
+     * @param notifyAdjacent true to notify physics and what not
+     * @return true if block id or data was changed
+     */
+    public static boolean setSafely(BukkitWorld world, Vector position,
+            Block block, boolean notifyAdjacent) {
+
+        int x = position.getBlockX();
+        int y = position.getBlockY();
+        int z = position.getBlockZ();
+
+        CraftWorld craftWorld = ((CraftWorld) world.getWorld());
+
+        boolean changed = craftWorld.getHandle().setRawTypeIdAndData(
+                x, y, z, block.getId(), block.getData());
+
+        if (block instanceof BaseBlock) {
+            world.copyToWorld(position, (BaseBlock) block);
+        }
+
+        if (changed) {
+            if (notifyAdjacent) {
+                craftWorld.getHandle().update(x, y, z, block.getId());
+            } else {
+                craftWorld.getHandle().notify(x, y, z);
+            }
+        }
+
+        return changed;
+    }
+
+    public static boolean hasTileEntity(int type) {
+        net.minecraft.server.v1_4_6.Block nmsBlock = getNmsBlock(type);
+        if (nmsBlock == null) {
+            return false;
+        }
+
+        try {
+            return nmsBlock_isTileEntityField.getBoolean(nmsBlock); // Once we have the field stord, gets are fast
+        } catch (IllegalAccessException e) {
+            return false;
+        }
+    }
+
+    public static net.minecraft.server.v1_4_6.Block getNmsBlock(int type) {
+        if (type < 0 || type >= net.minecraft.server.v1_4_6.Block.byId.length) {
+            return null;
+        }
+        return net.minecraft.server.v1_4_6.Block.byId[type];
+    }
+
+    /**
+     * Converts from a non-native NMS NBT structure to a native WorldEdit NBT
+     * structure.
+     *
+     * @param foreign non-native NMS NBT structure
+     * @return native WorldEdit NBT structure
+     */
+    @SuppressWarnings("unchecked")
+    private static Tag toNative(NBTBase foreign) {
+        if (foreign == null) {
+            return null;
+        }
+        if (foreign instanceof NBTTagCompound) {
+            Map<String, Tag> values = new HashMap<String, Tag>();
+            Collection<Object> foreignValues = null;
+
+            if (compoundMapField == null) {
+                try {
+                    // Method name may change!
+                    foreignValues = ((NBTTagCompound) foreign).c();
+                } catch (Throwable t) {
+                    try {
+                        logger.warning("WorldEdit: Couldn't get NBTTagCompound.c(), " +
+                                "so we're going to try to get at the 'map' field directly from now on");
+
+                        if (compoundMapField == null) {
+                            compoundMapField = NBTTagCompound.class.getDeclaredField("map");
+                            compoundMapField.setAccessible(true);
+                        }
+                    } catch (Throwable e) {
+                        // Can't do much beyond this
+                        throw new RuntimeException(e);
+                    }
+                }
+            }
+
+            if (compoundMapField != null) {
+                try {
+                    foreignValues = ((HashMap<Object, Object>) compoundMapField.get(foreign)).values();
+                } catch (Throwable e) {
+                    // Can't do much beyond this
+                    throw new RuntimeException(e);
+                }
+            }
+
+            for (Object obj : foreignValues) {
+                NBTBase base = (NBTBase) obj;
+                values.put(base.getName(), toNative(base));
+            }
+            return new CompoundTag(foreign.getName(), values);
+        } else if (foreign instanceof NBTTagByte) {
+            return new ByteTag(foreign.getName(), ((NBTTagByte) foreign).data);
+        } else if (foreign instanceof NBTTagByteArray) {
+            return new ByteArrayTag(foreign.getName(),
+                    ((NBTTagByteArray) foreign).data);
+        } else if (foreign instanceof NBTTagDouble) {
+            return new DoubleTag(foreign.getName(),
+                    ((NBTTagDouble) foreign).data);
+        } else if (foreign instanceof NBTTagFloat) {
+            return new FloatTag(foreign.getName(), ((NBTTagFloat) foreign).data);
+        } else if (foreign instanceof NBTTagInt) {
+            return new IntTag(foreign.getName(), ((NBTTagInt) foreign).data);
+        } else if (foreign instanceof NBTTagIntArray) {
+            return new IntArrayTag(foreign.getName(),
+                    ((NBTTagIntArray) foreign).data);
+        } else if (foreign instanceof NBTTagList) {
+            List<Tag> values = new ArrayList<Tag>();
+            NBTTagList foreignList = (NBTTagList) foreign;
+            int type = NBTConstants.TYPE_BYTE;
+            for (int i = 0; i < foreignList.size(); i++) {
+                NBTBase foreignTag = foreignList.get(i);
+                values.add(toNative(foreignTag));
+                type = foreignTag.getTypeId();
+            }
+            Class<? extends Tag> cls = NBTConstants.getClassFromType(type);
+            return new ListTag(foreign.getName(), cls, values);
+        } else if (foreign instanceof NBTTagLong) {
+            return new LongTag(foreign.getName(), ((NBTTagLong) foreign).data);
+        } else if (foreign instanceof NBTTagShort) {
+            return new ShortTag(foreign.getName(), ((NBTTagShort) foreign).data);
+        } else if (foreign instanceof NBTTagString) {
+            return new StringTag(foreign.getName(),
+                    ((NBTTagString) foreign).data);
+        } else if (foreign instanceof NBTTagEnd) {
+            return new EndTag();
+        } else {
+            throw new IllegalArgumentException("Don't know how to make native "
+                    + foreign.getClass().getCanonicalName());
+        }
+    }
+
+    /**
+     * Converts a WorldEdit-native NBT structure to a NMS structure.
+     *
+     * @param foreign structure to convert
+     * @return non-native structure
+     */
+    private static NBTBase fromNative(Tag foreign) {
+        if (foreign == null) {
+            return null;
+        }
+        if (foreign instanceof CompoundTag) {
+            NBTTagCompound tag = new NBTTagCompound(foreign.getName());
+            for (Map.Entry<String, Tag> entry : ((CompoundTag) foreign)
+                    .getValue().entrySet()) {
+                tag.set(entry.getKey(), fromNative(entry.getValue()));
+            }
+            return tag;
+        } else if (foreign instanceof ByteTag) {
+            return new NBTTagByte(foreign.getName(),
+                    ((ByteTag) foreign).getValue());
+        } else if (foreign instanceof ByteArrayTag) {
+            return new NBTTagByteArray(foreign.getName(),
+                    ((ByteArrayTag) foreign).getValue());
+        } else if (foreign instanceof DoubleTag) {
+            return new NBTTagDouble(foreign.getName(),
+                    ((DoubleTag) foreign).getValue());
+        } else if (foreign instanceof FloatTag) {
+            return new NBTTagFloat(foreign.getName(),
+                    ((FloatTag) foreign).getValue());
+        } else if (foreign instanceof IntTag) {
+            return new NBTTagInt(foreign.getName(),
+                    ((IntTag) foreign).getValue());
+        } else if (foreign instanceof IntArrayTag) {
+            return new NBTTagIntArray(foreign.getName(),
+                    ((IntArrayTag) foreign).getValue());
+        } else if (foreign instanceof ListTag) {
+            NBTTagList tag = new NBTTagList(foreign.getName());
+            ListTag foreignList = (ListTag) foreign;
+            for (Tag t : foreignList.getValue()) {
+                tag.add(fromNative(t));
+            }
+            return tag;
+        } else if (foreign instanceof LongTag) {
+            return new NBTTagLong(foreign.getName(),
+                    ((LongTag) foreign).getValue());
+        } else if (foreign instanceof ShortTag) {
+            return new NBTTagShort(foreign.getName(),
+                    ((ShortTag) foreign).getValue());
+        } else if (foreign instanceof StringTag) {
+            return new NBTTagString(foreign.getName(),
+                    ((StringTag) foreign).getValue());
+        } else if (foreign instanceof EndTag) {
+            return new NBTTagEnd();
+        } else {
+            throw new IllegalArgumentException("Don't know how to make NMS "
+                    + foreign.getClass().getCanonicalName());
+        }
+    }
+
+    public static boolean isValidBlockType(int type) throws NoClassDefFoundError {
+        return type == 0 || (type >= 1 && type < net.minecraft.server.v1_4_6.Block.byId.length
+                && net.minecraft.server.v1_4_6.Block.byId[type] != null);
+    }
+}

contrib/nmsblocks/MCPCPXNmsBlock.java

@@ -0,0 +1,449 @@
+// $Id$
+/*
+ * This file is a part of WorldEdit.
+ * Copyright (c) sk89q <http://www.sk89q.com>
+ * Copyright (c) the WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * (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
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Logger;
+
+import net.minecraft.server.v1_4_R1.NBTBase;
+import net.minecraft.server.v1_4_R1.NBTTagByte;
+import net.minecraft.server.v1_4_R1.NBTTagByteArray;
+import net.minecraft.server.v1_4_R1.NBTTagCompound;
+import net.minecraft.server.v1_4_R1.NBTTagDouble;
+import net.minecraft.server.v1_4_R1.NBTTagEnd;
+import net.minecraft.server.v1_4_R1.NBTTagFloat;
+import net.minecraft.server.v1_4_R1.NBTTagInt;
+import net.minecraft.server.v1_4_R1.NBTTagIntArray;
+import net.minecraft.server.v1_4_R1.NBTTagList;
+import net.minecraft.server.v1_4_R1.NBTTagLong;
+import net.minecraft.server.v1_4_R1.NBTTagShort;
+import net.minecraft.server.v1_4_R1.NBTTagString;
+import net.minecraft.server.v1_4_R1.TileEntity;
+
+import org.bukkit.World;
+import org.bukkit.craftbukkit.v1_4_R1.CraftWorld;
+
+import com.sk89q.jnbt.ByteArrayTag;
+import com.sk89q.jnbt.ByteTag;
+import com.sk89q.jnbt.CompoundTag;
+import com.sk89q.jnbt.DoubleTag;
+import com.sk89q.jnbt.EndTag;
+import com.sk89q.jnbt.FloatTag;
+import com.sk89q.jnbt.IntArrayTag;
+import com.sk89q.jnbt.IntTag;
+import com.sk89q.jnbt.ListTag;
+import com.sk89q.jnbt.LongTag;
+import com.sk89q.jnbt.NBTConstants;
+import com.sk89q.jnbt.ShortTag;
+import com.sk89q.jnbt.StringTag;
+import com.sk89q.jnbt.Tag;
+import com.sk89q.worldedit.Vector;
+import com.sk89q.worldedit.blocks.BaseBlock;
+import com.sk89q.worldedit.blocks.TileEntityBlock;
+import com.sk89q.worldedit.bukkit.BukkitWorld;
+import com.sk89q.worldedit.bukkit.NmsBlock;
+import com.sk89q.worldedit.data.DataException;
+import com.sk89q.worldedit.foundation.Block;
+
+/**
+ * This class needs to be obfuscated and compiled in a forge environment
+ */
+public class MCPCPXNmsBlock extends NmsBlock {
+
+    private static final Logger logger = Logger.getLogger(MCPCPXNmsBlock.class.getCanonicalName());
+    private static Field compoundMapField;
+    private static final Field nmsBlock_isTileEntityField; // The field is deobfuscated but the method isn't. No idea why.
+    private NBTTagCompound nbtData = null;
+
+    static {
+        Field field;
+        try {
+            // this part is important, has to be updated manually whenever it changes
+            field = net.minecraft.server.v1_4_R1.Block.class.getDeclaredField("cs"); // isTileEntity or isContainerBlock
+            field.setAccessible(true);
+        } catch (Throwable e) {
+            // logger.severe("Could not find NMS block tile entity field!");
+            field = null;
+        }
+        nmsBlock_isTileEntityField = field;
+    }
+
+    public static boolean verify() {
+        try {
+            Class.forName("org.bukkit.craftbukkit.v1_4_R1.CraftWorld");
+        } catch (Throwable e) {
+            return false;
+        }
+        return nmsBlock_isTileEntityField != null;
+    }
+
+    /**
+     * Create a new instance with a given type ID, data value, and previous
+     * {@link TileEntityBlock}-implementing object.
+     *
+     * @param type block type ID
+     * @param data data value
+     * @param tileEntityBlock tile entity block
+     */
+    public MCPCPXNmsBlock(int type, int data, TileEntityBlock tileEntityBlock) {
+        super(type, data);
+
+        nbtData = (NBTTagCompound) fromNative(tileEntityBlock.getNbtData());
+    }
+
+    /**
+     * Create a new instance with a given type ID, data value, and raw
+     * {@link NBTTagCompound} copy.
+     *
+     * @param type block type ID
+     * @param data data value
+     * @param nbtData raw NBT data
+     */
+    public MCPCPXNmsBlock(int type, int data, NBTTagCompound nbtData) {
+        super(type, data);
+
+        this.nbtData = nbtData;
+    }
+
+    /**
+     * Build a {@link NBTTagCompound} that has valid coordinates.
+     *
+     * @param pt coordinates to set
+     * @return the tag compound
+     */
+    private NBTTagCompound getNmsData(Vector pt) {
+        if (nbtData == null) {
+            return null;
+        }
+
+        nbtData.set("x", new NBTTagInt("x", pt.getBlockX()));
+        nbtData.set("y", new NBTTagInt("y", pt.getBlockY()));
+        nbtData.set("z", new NBTTagInt("z", pt.getBlockZ()));
+
+        return nbtData;
+    }
+
+    @Override
+    public boolean hasNbtData() {
+        return nbtData != null;
+    }
+
+    @Override
+    public String getNbtId() {
+        if (nbtData == null) {
+            return "";
+        }
+
+        return nbtData.getString("id");
+    }
+
+    @Override
+    public CompoundTag getNbtData() {
+        if (nbtData == null) {
+            return new CompoundTag(getNbtId(),
+                    new HashMap<String, Tag>());
+        }
+        return (CompoundTag) toNative(nbtData);
+    }
+
+    @Override
+    public void setNbtData(CompoundTag tag) throws DataException {
+        if (tag == null) {
+            this.nbtData = null;
+        }
+        this.nbtData = (NBTTagCompound) fromNative(tag);
+    }
+
+    /**
+     * Build an instance from the given information.
+     *
+     * @param world world to get the block from
+     * @param position position to get the block at
+     * @param type type ID of block
+     * @param data data value of block
+     * @return the block, or null
+     */
+    public static MCPCPXNmsBlock get(World world, Vector position, int type, int data) {
+        if (!hasTileEntity(type)) {
+            return null;
+        }
+
+        TileEntity te = ((CraftWorld) world).getHandle().getTileEntity(
+                position.getBlockX(), position.getBlockY(), position.getBlockZ());
+
+        if (te != null) {
+            NBTTagCompound tag = new NBTTagCompound();
+            te.b(tag); // Load data
+            return new MCPCPXNmsBlock(type, data, tag);
+        }
+
+        return null;
+    }
+
+    /**
+     * Set an instance or a {@link TileEntityBlock} to the given position.
+     *
+     * @param world world to set the block in
+     * @param position position to set the block at
+     * @param block the block to set
+     * @return true if tile entity data was copied to the world
+     */
+    public static boolean set(World world, Vector position, BaseBlock block) {
+        NBTTagCompound data = null;
+        if (!hasTileEntity(world.getBlockTypeIdAt(position.getBlockX(), position.getBlockY(), position.getBlockZ()))) {
+            return false;
+        }
+
+        if (block instanceof MCPCPXNmsBlock) {
+            MCPCPXNmsBlock nmsProxyBlock = (MCPCPXNmsBlock) block;
+            data = nmsProxyBlock.getNmsData(position);
+        } else if (block instanceof TileEntityBlock) {
+            MCPCPXNmsBlock nmsProxyBlock = new MCPCPXNmsBlock(
+                    block.getId(), block.getData(), block);
+            data = nmsProxyBlock.getNmsData(position);
+        }
+
+        if (data != null) {
+            TileEntity te = ((CraftWorld) world).getHandle().getTileEntity(
+                    position.getBlockX(), position.getBlockY(), position.getBlockZ());
+            if (te != null) {
+                te.a(data); // Load data
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Tries to set a block 'safely', as in setting the block data to the location, and
+     * then triggering physics only at the end.
+     *
+     * @param world world to set the block in
+     * @param position position to set the block at
+     * @param block the block to set
+     * @param notifyAdjacent true to notify physics and what not
+     * @return true if block id or data was changed
+     */
+    public static boolean setSafely(BukkitWorld world, Vector position,
+            Block block, boolean notifyAdjacent) {
+
+        int x = position.getBlockX();
+        int y = position.getBlockY();
+        int z = position.getBlockZ();
+
+        CraftWorld craftWorld = ((CraftWorld) world.getWorld());
+
+        boolean changed = craftWorld.getHandle().setRawTypeIdAndData(
+                x, y, z, block.getId(), block.getData());
+
+        if (block instanceof BaseBlock) {
+            world.copyToWorld(position, (BaseBlock) block);
+        }
+
+        if (changed) {
+            if (notifyAdjacent) {
+                craftWorld.getHandle().update(x, y, z, block.getId());
+            } else {
+                craftWorld.getHandle().notify(x, y, z);
+            }
+        }
+
+        return changed;
+    }
+
+    public static boolean hasTileEntity(int type) {
+        net.minecraft.server.v1_4_R1.Block nmsBlock = getNmsBlock(type);
+        if (nmsBlock == null) {
+            return false;
+        }
+
+        try {
+            return nmsBlock_isTileEntityField.getBoolean(nmsBlock); // Once we have the field stord, gets are fast
+        } catch (IllegalAccessException e) {
+            return false;
+        }
+    }
+
+    public static net.minecraft.server.v1_4_R1.Block getNmsBlock(int type) {
+        if (type < 0 || type >= net.minecraft.server.v1_4_R1.Block.byId.length) {
+            return null;
+        }
+        return net.minecraft.server.v1_4_R1.Block.byId[type];
+    }
+
+    /**
+     * Converts from a non-native NMS NBT structure to a native WorldEdit NBT
+     * structure.
+     *
+     * @param foreign non-native NMS NBT structure
+     * @return native WorldEdit NBT structure
+     */
+    @SuppressWarnings("unchecked")
+    private static Tag toNative(NBTBase foreign) {
+        if (foreign == null) {
+            return null;
+        }
+        if (foreign instanceof NBTTagCompound) {
+            Map<String, Tag> values = new HashMap<String, Tag>();
+            Collection<Object> foreignValues = null;
+
+            if (compoundMapField == null) {
+                try {
+                    // Method name may change!
+                    foreignValues = ((NBTTagCompound) foreign).c();
+                } catch (Throwable t) {
+                    try {
+                        // this shouldn't happen here since we are reobfuscating to the correct name
+                        logger.warning("WorldEdit: Couldn't get NBTTagCompound.getLists(), " +
+                                "so we're going to try to get at the 'map' field directly from now on");
+
+                        if (compoundMapField == null) {
+                            compoundMapField = NBTTagCompound.class.getDeclaredField("map");
+                            compoundMapField.setAccessible(true);
+                        }
+                    } catch (Throwable e) {
+                        // Can't do much beyond this
+                        throw new RuntimeException(e);
+                    }
+                }
+            }
+
+            if (compoundMapField != null) {
+                try {
+                    foreignValues = ((HashMap<Object, Object>) compoundMapField.get(foreign)).values();
+                } catch (Throwable e) {
+                    // Can't do much beyond this
+                    throw new RuntimeException(e);
+                }
+            }
+
+            for (Object obj : foreignValues) {
+                NBTBase base = (NBTBase) obj;
+                values.put(base.getName(), toNative(base));
+            }
+            return new CompoundTag(foreign.getName(), values);
+        } else if (foreign instanceof NBTTagByte) {
+            return new ByteTag(foreign.getName(), ((NBTTagByte) foreign).data);
+        } else if (foreign instanceof NBTTagByteArray) {
+            return new ByteArrayTag(foreign.getName(),
+                    ((NBTTagByteArray) foreign).data);
+        } else if (foreign instanceof NBTTagDouble) {
+            return new DoubleTag(foreign.getName(),
+                    ((NBTTagDouble) foreign).data);
+        } else if (foreign instanceof NBTTagFloat) {
+            return new FloatTag(foreign.getName(), ((NBTTagFloat) foreign).data);
+        } else if (foreign instanceof NBTTagInt) {
+            return new IntTag(foreign.getName(), ((NBTTagInt) foreign).data);
+        } else if (foreign instanceof NBTTagIntArray) {
+            return new IntArrayTag(foreign.getName(),
+                    ((NBTTagIntArray) foreign).data);
+        } else if (foreign instanceof NBTTagList) {
+            List<Tag> values = new ArrayList<Tag>();
+            NBTTagList foreignList = (NBTTagList) foreign;
+            int type = NBTConstants.TYPE_BYTE;
+            for (int i = 0; i < foreignList.size(); i++) {
+                NBTBase foreignTag = foreignList.get(i);
+                values.add(toNative(foreignTag));
+                type = foreignTag.getTypeId();
+            }
+            Class<? extends Tag> cls = NBTConstants.getClassFromType(type);
+            return new ListTag(foreign.getName(), cls, values);
+        } else if (foreign instanceof NBTTagLong) {
+            return new LongTag(foreign.getName(), ((NBTTagLong) foreign).data);
+        } else if (foreign instanceof NBTTagShort) {
+            return new ShortTag(foreign.getName(), ((NBTTagShort) foreign).data);
+        } else if (foreign instanceof NBTTagString) {
+            return new StringTag(foreign.getName(),
+                    ((NBTTagString) foreign).data);
+        } else if (foreign instanceof NBTTagEnd) {
+            return new EndTag();
+        } else {
+            throw new IllegalArgumentException("Don't know how to make native "
+                    + foreign.getClass().getCanonicalName());
+        }
+    }
+
+    /**
+     * Converts a WorldEdit-native NBT structure to a NMS structure.
+     *
+     * @param foreign structure to convert
+     * @return non-native structure
+     */
+    private static NBTBase fromNative(Tag foreign) {
+        if (foreign == null) {
+            return null;
+        }
+        if (foreign instanceof CompoundTag) {
+            NBTTagCompound tag = new NBTTagCompound(foreign.getName());
+            for (Map.Entry<String, Tag> entry : ((CompoundTag) foreign)
+                    .getValue().entrySet()) {
+                tag.set(entry.getKey(), fromNative(entry.getValue()));
+            }
+            return tag;
+        } else if (foreign instanceof ByteTag) {
+            return new NBTTagByte(foreign.getName(),
+                    ((ByteTag) foreign).getValue());
+        } else if (foreign instanceof ByteArrayTag) {
+            return new NBTTagByteArray(foreign.getName(),
+                    ((ByteArrayTag) foreign).getValue());
+        } else if (foreign instanceof DoubleTag) {
+            return new NBTTagDouble(foreign.getName(),
+                    ((DoubleTag) foreign).getValue());
+        } else if (foreign instanceof FloatTag) {
+            return new NBTTagFloat(foreign.getName(),
+                    ((FloatTag) foreign).getValue());
+        } else if (foreign instanceof IntTag) {
+            return new NBTTagInt(foreign.getName(),
+                    ((IntTag) foreign).getValue());
+        } else if (foreign instanceof IntArrayTag) {
+            return new NBTTagIntArray(foreign.getName(),
+                    ((IntArrayTag) foreign).getValue());
+        } else if (foreign instanceof ListTag) {
+            NBTTagList tag = new NBTTagList(foreign.getName());
+            ListTag foreignList = (ListTag) foreign;
+            for (Tag t : foreignList.getValue()) {
+                tag.add(fromNative(t));
+            }
+            return tag;
+        } else if (foreign instanceof LongTag) {
+            return new NBTTagLong(foreign.getName(),
+                    ((LongTag) foreign).getValue());
+        } else if (foreign instanceof ShortTag) {
+            return new NBTTagShort(foreign.getName(),
+                    ((ShortTag) foreign).getValue());
+        } else if (foreign instanceof StringTag) {
+            return new NBTTagString(foreign.getName(),
+                    ((StringTag) foreign).getValue());
+        } else if (foreign instanceof EndTag) {
+            return new NBTTagEnd();
+        } else {
+            throw new IllegalArgumentException("Don't know how to make NMS "
+                    + foreign.getClass().getCanonicalName());
+        }
+    }
+
+    public static boolean isValidBlockType(int type) throws NoClassDefFoundError {
+        return type == 0 || (type >= 1 && type < net.minecraft.server.v1_4_R1.Block.byId.length
+                && net.minecraft.server.v1_4_R1.Block.byId[type] != null);
+    }
+}

pom.xml

@@ -90,7 +90,7 @@
     <dependency>
       <groupId>org.bukkit</groupId>
       <artifactId>craftbukkit</artifactId>
-      <version>1.4.6-R0.1</version>
+      <version>1.4.7-R0.1</version>
       <scope>compile</scope>
       <optional>true</optional>
     </dependency>

src/main/assembly/default.xml

@@ -28,6 +28,7 @@
         <include>LICENSE.txt</include>
         <include>CHANGELOG.txt</include>
         <include>contrib/craftscripts/*</include>
+        <include>contrib/nmsblocks/*.class</include>
       </includes>
     </fileSet>
   </fileSets>

src/main/java/com/sk89q/worldedit/bukkit/BukkitWorld.java

@@ -19,6 +19,11 @@
 
 package com.sk89q.worldedit.bukkit;
 
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.InputStream;
+import java.lang.reflect.Method;
+import java.net.URL;
 import java.util.ArrayList;
 import java.util.EnumMap;
 import java.util.HashMap;
@@ -30,6 +35,7 @@ import java.util.UUID;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import org.bukkit.Bukkit;
 import org.bukkit.Effect;
 import org.bukkit.Location;
 import org.bukkit.Material;
@@ -67,6 +73,7 @@ import org.bukkit.entity.Villager;
 import org.bukkit.inventory.DoubleChestInventory;
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;
+import org.bukkit.plugin.Plugin;
 
 import com.sk89q.worldedit.BiomeType;
 import com.sk89q.worldedit.BlockVector2D;
@@ -92,18 +99,128 @@ import com.sk89q.worldedit.util.TreeGenerator;
 
 public class BukkitWorld extends LocalWorld {
 
-    private static final Logger logger = Logger.getLogger(BukkitWorld.class.getCanonicalName());
+    private static final Logger logger = WorldEdit.logger;
     private World world;
     private boolean skipNmsAccess = false;
     private boolean skipNmsSafeSet = false;
     private boolean skipNmsValidBlockCheck = false;
 
+    /*
+     * holder for the nmsblock class that we should use
+     */
+    private static Class<? extends NmsBlock> nmsBlockType;
+    private static Method nmsSetMethod;
+    private static Method nmsValidBlockMethod;
+    private static Method nmsGetMethod;
+    private static Method nmsSetSafeMethod;
+
     /**
      * Construct the object.
      * @param world
      */
     public BukkitWorld(World world) {
         this.world = world;
+
+        // check if we have a class we can use for nms access
+        if (nmsBlockType != null) return;
+        Plugin plugin = Bukkit.getPluginManager().getPlugin("WorldEdit");
+        if (!(plugin instanceof WorldEditPlugin)) return; // hopefully never happens
+        WorldEditPlugin wePlugin = ((WorldEditPlugin) plugin);
+        File nmsBlocksDir = new File(wePlugin.getDataFolder() + File.separator + "nmsblocks" + File.separator);
+        if (nmsBlocksDir.listFiles() == null) { // no files to use
+            skipNmsAccess = true; skipNmsSafeSet = true; skipNmsValidBlockCheck = true;
+            return;
+        }
+        try {
+            NmsBlockClassLoader loader = new NmsBlockClassLoader(BukkitWorld.class.getClassLoader(), nmsBlocksDir);
+            String filename;
+            for (File f : nmsBlocksDir.listFiles()) {
+                if (!f.isFile()) continue;
+                filename = f.getName();
+                Class<?> testBlock = loader.loadClass("CL-NMS" + filename);
+                filename = filename.replaceFirst(".class$", ""); // get rid of extension
+                if (NmsBlock.class.isAssignableFrom(testBlock)) {
+                    // got a NmsBlock, test it now
+                    Class<? extends NmsBlock> nmsClass = (Class<? extends NmsBlock>) testBlock;
+                    boolean canUse = false;
+                    try {
+                        canUse = (Boolean) nmsClass.getMethod("verify", null).invoke(null, null);
+                    } catch (Throwable e) {
+                        continue;
+                    }
+                    if (!canUse) continue; // not for this server
+                    nmsBlockType = nmsClass;
+                    nmsSetMethod = nmsBlockType.getMethod("set", World.class, Vector.class, BaseBlock.class);
+                    nmsValidBlockMethod = nmsBlockType.getMethod("isValidBlockType", int.class);
+                    nmsGetMethod = nmsBlockType.getMethod("get", World.class, Vector.class, int.class, int.class);
+                    nmsSetSafeMethod = nmsBlockType.getMethod("setSafely",
+                            BukkitWorld.class, Vector.class, com.sk89q.worldedit.foundation.Block.class, boolean.class);
+                    // phew
+                    break;
+                }
+            }
+            if (nmsBlockType != null) {
+                // logger.info("Found nms block class, using: " + nmsBlockType);
+            } else {
+                // try our default
+                try {
+                    nmsBlockType = (Class<? extends NmsBlock>) Class.forName("com.sk89q.worldedit.bukkit.DefaultNmsBlock");
+                    boolean canUse = (Boolean) nmsBlockType.getMethod("verify", null).invoke(null, null);
+                    if (canUse) {
+                        nmsSetMethod = nmsBlockType.getMethod("set", World.class, Vector.class, BaseBlock.class);
+                        nmsValidBlockMethod = nmsBlockType.getMethod("isValidBlockType", int.class);
+                        nmsGetMethod = nmsBlockType.getMethod("get", World.class, Vector.class, int.class, int.class);
+                        nmsSetSafeMethod = nmsBlockType.getMethod("setSafely",
+                                BukkitWorld.class, Vector.class, com.sk89q.worldedit.foundation.Block.class, boolean.class);
+                        logger.info("[WorldEdit] Using inbuilt NmsBlock for this version of WorldEdit.");
+                    }
+                } catch (Throwable e) {
+                    // OMG DEVS WAI U NO SUPPORT <xyz> SERVER
+                    skipNmsAccess = true; skipNmsSafeSet = true; skipNmsValidBlockCheck = true;
+                    logger.warning("[WorldEdit] No compatible nms block class found.");
+                }
+            }
+        } catch (Throwable e) {
+            logger.warning("[WorldEdit] Unable to load NmsBlock classes, make sure they are installed correctly.");
+            e.printStackTrace();
+            skipNmsAccess = true; skipNmsSafeSet = true; skipNmsValidBlockCheck = true;
+        }
+    }
+
+    private class NmsBlockClassLoader extends ClassLoader {
+        public File searchDir;
+        public NmsBlockClassLoader(ClassLoader parent, File searchDir) {
+            super(parent);
+            this.searchDir = searchDir;
+        }
+
+        @Override
+        public Class<?> loadClass(String name) throws ClassNotFoundException {
+            if (!name.startsWith("CL-NMS")) {
+                return super.loadClass(name);
+            } else {
+                name = name.replace("CL-NMS", ""); // hacky lol
+            }
+            try {
+                URL url = new File(searchDir, name).toURI().toURL();
+                InputStream input = url.openConnection().getInputStream();
+                ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+
+                int data = input.read();
+                while (data != -1) {
+                    buffer.write(data);
+                    data = input.read();
+                }
+                input.close();
+
+                byte[] classData = buffer.toByteArray();
+
+                return defineClass(name.replaceFirst(".class$", ""), classData, 0, classData.length);
+            } catch (Throwable e) {
+                e.printStackTrace();
+                throw new ClassNotFoundException();
+            }
+        }
     }
 
     /**
@@ -455,7 +572,7 @@ public class BukkitWorld extends LocalWorld {
 
         if (!skipNmsAccess) {
             try {
-                return NmsBlock.set(world, pt, block);
+                return (Boolean) nmsSetMethod.invoke(null, world, pt, block);
             } catch (Throwable t) {
                 logger.log(Level.WARNING, "WorldEdit: Failed to do NMS access for direct NBT data copy", t);
                 skipNmsAccess = true;
@@ -1064,7 +1181,7 @@ public class BukkitWorld extends LocalWorld {
     public boolean isValidBlockType(int type) {
         if (!skipNmsValidBlockCheck) {
             try {
-                return NmsBlock.isValidBlockType(type);
+                return (Boolean) nmsValidBlockMethod.invoke(null, type);
             } catch (Throwable e) {
                 skipNmsValidBlockCheck = true;
             }
@@ -1180,7 +1297,8 @@ public class BukkitWorld extends LocalWorld {
         default:
             if (!skipNmsAccess) {
                 try {
-                    NmsBlock block = NmsBlock.get(world, pt, type, data);
+                    NmsBlock block = null;
+                    block = (NmsBlock) nmsGetMethod.invoke(null, getWorld(), pt, type, data);
                     if (block != null) {
                         return block;
                     }
@@ -1199,10 +1317,9 @@ public class BukkitWorld extends LocalWorld {
     public boolean setBlock(Vector pt, com.sk89q.worldedit.foundation.Block block, boolean notifyAdjacent) {
         if (!skipNmsSafeSet) {
             try {
-                return NmsBlock.setSafely(this, pt, block, notifyAdjacent);
+                return (Boolean) nmsSetSafeMethod.invoke(null, this, pt, block, notifyAdjacent);
             } catch (Throwable t) {
-                logger.log(Level.WARNING,
-                        "WorldEdit: Failed to do NMS safe block set", t);
+                logger.log(Level.WARNING, "WorldEdit: Failed to do NMS safe block set", t);
                 skipNmsSafeSet = true;
             }
         }

src/main/java/com/sk89q/worldedit/bukkit/DefaultNmsBlock.java

@@ -0,0 +1,446 @@
+package com.sk89q.worldedit.bukkit;
+// $Id$
+/*
+ * This file is a part of WorldEdit.
+ * Copyright (c) sk89q <http://www.sk89q.com>
+ * Copyright (c) the WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * (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
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Logger;
+
+import net.minecraft.server.v1_4_R1.NBTBase;
+import net.minecraft.server.v1_4_R1.NBTTagByte;
+import net.minecraft.server.v1_4_R1.NBTTagByteArray;
+import net.minecraft.server.v1_4_R1.NBTTagCompound;
+import net.minecraft.server.v1_4_R1.NBTTagDouble;
+import net.minecraft.server.v1_4_R1.NBTTagEnd;
+import net.minecraft.server.v1_4_R1.NBTTagFloat;
+import net.minecraft.server.v1_4_R1.NBTTagInt;
+import net.minecraft.server.v1_4_R1.NBTTagIntArray;
+import net.minecraft.server.v1_4_R1.NBTTagList;
+import net.minecraft.server.v1_4_R1.NBTTagLong;
+import net.minecraft.server.v1_4_R1.NBTTagShort;
+import net.minecraft.server.v1_4_R1.NBTTagString;
+import net.minecraft.server.v1_4_R1.TileEntity;
+
+import org.bukkit.World;
+import org.bukkit.craftbukkit.v1_4_R1.CraftWorld;
+
+import com.sk89q.jnbt.ByteArrayTag;
+import com.sk89q.jnbt.ByteTag;
+import com.sk89q.jnbt.CompoundTag;
+import com.sk89q.jnbt.DoubleTag;
+import com.sk89q.jnbt.EndTag;
+import com.sk89q.jnbt.FloatTag;
+import com.sk89q.jnbt.IntArrayTag;
+import com.sk89q.jnbt.IntTag;
+import com.sk89q.jnbt.ListTag;
+import com.sk89q.jnbt.LongTag;
+import com.sk89q.jnbt.NBTConstants;
+import com.sk89q.jnbt.ShortTag;
+import com.sk89q.jnbt.StringTag;
+import com.sk89q.jnbt.Tag;
+import com.sk89q.worldedit.Vector;
+import com.sk89q.worldedit.WorldEdit;
+import com.sk89q.worldedit.blocks.BaseBlock;
+import com.sk89q.worldedit.blocks.TileEntityBlock;
+import com.sk89q.worldedit.data.DataException;
+import com.sk89q.worldedit.foundation.Block;
+
+/**
+ * A blind handler of blocks with TileEntity data that directly access Minecraft's
+ * classes through CraftBukkit.
+ * </p>
+ * Usage of this class may break terribly in the future, and therefore usage should
+ * be trapped in a handler for {@link Throwable}.
+ */
+public class DefaultNmsBlock extends NmsBlock {
+
+    private static final Logger logger = WorldEdit.logger;
+    private static Field compoundMapField;
+    private static final Field nmsBlock_isTileEntityField; // The field is deobfuscated but the method isn't. No idea why.
+    private NBTTagCompound nbtData = null;
+
+    static {
+        Field field;
+        try {
+            field = net.minecraft.server.v1_4_R1.Block.class.getDeclaredField("isTileEntity");
+            field.setAccessible(true);
+        } catch (NoSuchFieldException e) {
+            // logger.severe("Could not find NMS block tile entity field!");
+            field = null;
+        }
+        nmsBlock_isTileEntityField = field;
+    }
+
+    public static boolean verify() {
+        return nmsBlock_isTileEntityField != null;
+    }
+
+    /**
+     * Create a new instance with a given type ID, data value, and previous
+     * {@link TileEntityBlock}-implementing object.
+     *
+     * @param type block type ID
+     * @param data data value
+     * @param tileEntityBlock tile entity block
+     */
+    public DefaultNmsBlock(int type, int data, TileEntityBlock tileEntityBlock) {
+        super(type, data);
+
+        nbtData = (NBTTagCompound) fromNative(tileEntityBlock.getNbtData());
+    }
+
+    /**
+     * Create a new instance with a given type ID, data value, and raw
+     * {@link NBTTagCompound} copy.
+     *
+     * @param type block type ID
+     * @param data data value
+     * @param nbtData raw NBT data
+     */
+    public DefaultNmsBlock(int type, int data, NBTTagCompound nbtData) {
+        super(type, data);
+
+        this.nbtData = nbtData;
+    }
+
+    /**
+     * Build a {@link NBTTagCompound} that has valid coordinates.
+     *
+     * @param pt coordinates to set
+     * @return the tag compound
+     */
+    private NBTTagCompound getNmsData(Vector pt) {
+        if (nbtData == null) {
+            return null;
+        }
+
+        nbtData.set("x", new NBTTagInt("x", pt.getBlockX()));
+        nbtData.set("y", new NBTTagInt("y", pt.getBlockY()));
+        nbtData.set("z", new NBTTagInt("z", pt.getBlockZ()));
+
+        return nbtData;
+    }
+
+    @Override
+    public boolean hasNbtData() {
+        return nbtData != null;
+    }
+
+    @Override
+    public String getNbtId() {
+        if (nbtData == null) {
+            return "";
+        }
+
+        return nbtData.getString("id");
+    }
+
+    @Override
+    public CompoundTag getNbtData() {
+        if (nbtData == null) {
+            return new CompoundTag(getNbtId(),
+                    new HashMap<String, Tag>());
+        }
+        return (CompoundTag) toNative(nbtData);
+    }
+
+    @Override
+    public void setNbtData(CompoundTag tag) throws DataException {
+        if (tag == null) {
+            this.nbtData = null;
+        }
+        this.nbtData = (NBTTagCompound) fromNative(tag);
+    }
+
+    /**
+     * Build an instance from the given information.
+     *
+     * @param world world to get the block from
+     * @param position position to get the block at
+     * @param type type ID of block
+     * @param data data value of block
+     * @return the block, or null
+     */
+    public static DefaultNmsBlock get(World world, Vector position, int type, int data) {
+        if (!hasTileEntity(type)) {
+            return null;
+        }
+
+        TileEntity te = ((CraftWorld) world).getHandle().getTileEntity(
+                position.getBlockX(), position.getBlockY(), position.getBlockZ());
+
+        if (te != null) {
+            NBTTagCompound tag = new NBTTagCompound();
+            te.b(tag); // Load data
+            return new DefaultNmsBlock(type, data, tag);
+        }
+
+        return null;
+    }
+
+    /**
+     * Set an instance or a {@link TileEntityBlock} to the given position.
+     *
+     * @param world world to set the block in
+     * @param position position to set the block at
+     * @param block the block to set
+     * @return true if tile entity data was copied to the world
+     */
+    public static boolean set(World world, Vector position, BaseBlock block) {
+        NBTTagCompound data = null;
+        if (!hasTileEntity(world.getBlockTypeIdAt(position.getBlockX(), position.getBlockY(), position.getBlockZ()))) {
+            return false;
+        }
+
+        if (block instanceof DefaultNmsBlock) {
+            DefaultNmsBlock nmsProxyBlock = (DefaultNmsBlock) block;
+            data = nmsProxyBlock.getNmsData(position);
+        } else if (block instanceof TileEntityBlock) {
+            DefaultNmsBlock nmsProxyBlock = new DefaultNmsBlock(
+                    block.getId(), block.getData(), block);
+            data = nmsProxyBlock.getNmsData(position);
+        }
+
+        if (data != null) {
+            TileEntity te = ((CraftWorld) world).getHandle().getTileEntity(
+                    position.getBlockX(), position.getBlockY(), position.getBlockZ());
+            if (te != null) {
+                te.a(data); // Load data
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Tries to set a block 'safely', as in setting the block data to the location, and
+     * then triggering physics only at the end.
+     *
+     * @param world world to set the block in
+     * @param position position to set the block at
+     * @param block the block to set
+     * @param notifyAdjacent true to notify physics and what not
+     * @return true if block id or data was changed
+     */
+    public static boolean setSafely(BukkitWorld world, Vector position,
+            Block block, boolean notifyAdjacent) {
+
+        int x = position.getBlockX();
+        int y = position.getBlockY();
+        int z = position.getBlockZ();
+
+        CraftWorld craftWorld = ((CraftWorld) world.getWorld());
+
+        boolean changed = craftWorld.getHandle().setRawTypeIdAndData(
+                x, y, z, block.getId(), block.getData());
+
+        if (block instanceof BaseBlock) {
+            world.copyToWorld(position, (BaseBlock) block);
+        }
+
+        if (changed) {
+            if (notifyAdjacent) {
+                craftWorld.getHandle().update(x, y, z, block.getId());
+            } else {
+                craftWorld.getHandle().notify(x, y, z);
+            }
+        }
+
+        return changed;
+    }
+
+    public static boolean hasTileEntity(int type) {
+        net.minecraft.server.v1_4_R1.Block nmsBlock = getNmsBlock(type);
+        if (nmsBlock == null) {
+            return false;
+        }
+
+        try {
+            return nmsBlock_isTileEntityField.getBoolean(nmsBlock); // Once we have the field stord, gets are fast
+        } catch (IllegalAccessException e) {
+            return false;
+        }
+    }
+
+    public static net.minecraft.server.v1_4_R1.Block getNmsBlock(int type) {
+        if (type < 0 || type >= net.minecraft.server.v1_4_R1.Block.byId.length) {
+            return null;
+        }
+        return net.minecraft.server.v1_4_R1.Block.byId[type];
+    }
+
+    /**
+     * Converts from a non-native NMS NBT structure to a native WorldEdit NBT
+     * structure.
+     *
+     * @param foreign non-native NMS NBT structure
+     * @return native WorldEdit NBT structure
+     */
+    @SuppressWarnings("unchecked")
+    private static Tag toNative(NBTBase foreign) {
+        if (foreign == null) {
+            return null;
+        }
+        if (foreign instanceof NBTTagCompound) {
+            Map<String, Tag> values = new HashMap<String, Tag>();
+            Collection<Object> foreignValues = null;
+
+            if (compoundMapField == null) {
+                try {
+                    // Method name may change!
+                    foreignValues = ((NBTTagCompound) foreign).c();
+                } catch (Throwable t) {
+                    try {
+                        logger.warning("WorldEdit: Couldn't get NBTTagCompound.c(), " +
+                                "so we're going to try to get at the 'map' field directly from now on");
+
+                        if (compoundMapField == null) {
+                            compoundMapField = NBTTagCompound.class.getDeclaredField("map");
+                            compoundMapField.setAccessible(true);
+                        }
+                    } catch (Throwable e) {
+                        // Can't do much beyond this
+                        throw new RuntimeException(e);
+                    }
+                }
+            }
+
+            if (compoundMapField != null) {
+                try {
+                    foreignValues = ((HashMap<Object, Object>) compoundMapField.get(foreign)).values();
+                } catch (Throwable e) {
+                    // Can't do much beyond this
+                    throw new RuntimeException(e);
+                }
+            }
+
+            for (Object obj : foreignValues) {
+                NBTBase base = (NBTBase) obj;
+                values.put(base.getName(), toNative(base));
+            }
+            return new CompoundTag(foreign.getName(), values);
+        } else if (foreign instanceof NBTTagByte) {
+            return new ByteTag(foreign.getName(), ((NBTTagByte) foreign).data);
+        } else if (foreign instanceof NBTTagByteArray) {
+            return new ByteArrayTag(foreign.getName(),
+                    ((NBTTagByteArray) foreign).data);
+        } else if (foreign instanceof NBTTagDouble) {
+            return new DoubleTag(foreign.getName(),
+                    ((NBTTagDouble) foreign).data);
+        } else if (foreign instanceof NBTTagFloat) {
+            return new FloatTag(foreign.getName(), ((NBTTagFloat) foreign).data);
+        } else if (foreign instanceof NBTTagInt) {
+            return new IntTag(foreign.getName(), ((NBTTagInt) foreign).data);
+        } else if (foreign instanceof NBTTagIntArray) {
+            return new IntArrayTag(foreign.getName(),
+                    ((NBTTagIntArray) foreign).data);
+        } else if (foreign instanceof NBTTagList) {
+            List<Tag> values = new ArrayList<Tag>();
+            NBTTagList foreignList = (NBTTagList) foreign;
+            int type = NBTConstants.TYPE_BYTE;
+            for (int i = 0; i < foreignList.size(); i++) {
+                NBTBase foreignTag = foreignList.get(i);
+                values.add(toNative(foreignTag));
+                type = foreignTag.getTypeId();
+            }
+            Class<? extends Tag> cls = NBTConstants.getClassFromType(type);
+            return new ListTag(foreign.getName(), cls, values);
+        } else if (foreign instanceof NBTTagLong) {
+            return new LongTag(foreign.getName(), ((NBTTagLong) foreign).data);
+        } else if (foreign instanceof NBTTagShort) {
+            return new ShortTag(foreign.getName(), ((NBTTagShort) foreign).data);
+        } else if (foreign instanceof NBTTagString) {
+            return new StringTag(foreign.getName(),
+                    ((NBTTagString) foreign).data);
+        } else if (foreign instanceof NBTTagEnd) {
+            return new EndTag();
+        } else {
+            throw new IllegalArgumentException("Don't know how to make native "
+                    + foreign.getClass().getCanonicalName());
+        }
+    }
+
+    /**
+     * Converts a WorldEdit-native NBT structure to a NMS structure.
+     *
+     * @param foreign structure to convert
+     * @return non-native structure
+     */
+    private static NBTBase fromNative(Tag foreign) {
+        if (foreign == null) {
+            return null;
+        }
+        if (foreign instanceof CompoundTag) {
+            NBTTagCompound tag = new NBTTagCompound(foreign.getName());
+            for (Map.Entry<String, Tag> entry : ((CompoundTag) foreign)
+                    .getValue().entrySet()) {
+                tag.set(entry.getKey(), fromNative(entry.getValue()));
+            }
+            return tag;
+        } else if (foreign instanceof ByteTag) {
+            return new NBTTagByte(foreign.getName(),
+                    ((ByteTag) foreign).getValue());
+        } else if (foreign instanceof ByteArrayTag) {
+            return new NBTTagByteArray(foreign.getName(),
+                    ((ByteArrayTag) foreign).getValue());
+        } else if (foreign instanceof DoubleTag) {
+            return new NBTTagDouble(foreign.getName(),
+                    ((DoubleTag) foreign).getValue());
+        } else if (foreign instanceof FloatTag) {
+            return new NBTTagFloat(foreign.getName(),
+                    ((FloatTag) foreign).getValue());
+        } else if (foreign instanceof IntTag) {
+            return new NBTTagInt(foreign.getName(),
+                    ((IntTag) foreign).getValue());
+        } else if (foreign instanceof IntArrayTag) {
+            return new NBTTagIntArray(foreign.getName(),
+                    ((IntArrayTag) foreign).getValue());
+        } else if (foreign instanceof ListTag) {
+            NBTTagList tag = new NBTTagList(foreign.getName());
+            ListTag foreignList = (ListTag) foreign;
+            for (Tag t : foreignList.getValue()) {
+                tag.add(fromNative(t));
+            }
+            return tag;
+        } else if (foreign instanceof LongTag) {
+            return new NBTTagLong(foreign.getName(),
+                    ((LongTag) foreign).getValue());
+        } else if (foreign instanceof ShortTag) {
+            return new NBTTagShort(foreign.getName(),
+                    ((ShortTag) foreign).getValue());
+        } else if (foreign instanceof StringTag) {
+            return new NBTTagString(foreign.getName(),
+                    ((StringTag) foreign).getValue());
+        } else if (foreign instanceof EndTag) {
+            return new NBTTagEnd();
+        } else {
+            throw new IllegalArgumentException("Don't know how to make NMS "
+                    + foreign.getClass().getCanonicalName());
+        }
+    }
+
+    public static boolean isValidBlockType(int type) throws NoClassDefFoundError {
+        return type == 0 || (type >= 1 && type < net.minecraft.server.v1_4_R1.Block.byId.length
+                && net.minecraft.server.v1_4_R1.Block.byId[type] != null);
+    }
+}

src/main/java/com/sk89q/worldedit/bukkit/NmsBlock.java

@@ -1,442 +1,42 @@
-// $Id$
-/*
- * This file is a part of WorldEdit.
- * Copyright (c) sk89q <http://www.sk89q.com>
- * Copyright (c) the WorldEdit team and contributors
- *
- * This program is free software: you can redistribute it and/or modify it under the
- * terms of the GNU Lesser General Public License as published by the Free Software
- * (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
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
 package com.sk89q.worldedit.bukkit;
 
-import java.lang.reflect.Field;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.logging.Logger;
-
-import net.minecraft.server.v1_4_6.NBTBase;
-import net.minecraft.server.v1_4_6.NBTTagByte;
-import net.minecraft.server.v1_4_6.NBTTagByteArray;
-import net.minecraft.server.v1_4_6.NBTTagCompound;
-import net.minecraft.server.v1_4_6.NBTTagDouble;
-import net.minecraft.server.v1_4_6.NBTTagEnd;
-import net.minecraft.server.v1_4_6.NBTTagFloat;
-import net.minecraft.server.v1_4_6.NBTTagInt;
-import net.minecraft.server.v1_4_6.NBTTagIntArray;
-import net.minecraft.server.v1_4_6.NBTTagList;
-import net.minecraft.server.v1_4_6.NBTTagLong;
-import net.minecraft.server.v1_4_6.NBTTagShort;
-import net.minecraft.server.v1_4_6.NBTTagString;
-import net.minecraft.server.v1_4_6.TileEntity;
-
 import org.bukkit.World;
-import org.bukkit.craftbukkit.v1_4_6.CraftWorld;
 
-import com.sk89q.jnbt.ByteArrayTag;
-import com.sk89q.jnbt.ByteTag;
-import com.sk89q.jnbt.CompoundTag;
-import com.sk89q.jnbt.DoubleTag;
-import com.sk89q.jnbt.EndTag;
-import com.sk89q.jnbt.FloatTag;
-import com.sk89q.jnbt.IntArrayTag;
-import com.sk89q.jnbt.IntTag;
-import com.sk89q.jnbt.ListTag;
-import com.sk89q.jnbt.LongTag;
-import com.sk89q.jnbt.NBTConstants;
-import com.sk89q.jnbt.ShortTag;
-import com.sk89q.jnbt.StringTag;
-import com.sk89q.jnbt.Tag;
 import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.blocks.BaseBlock;
-import com.sk89q.worldedit.blocks.TileEntityBlock;
-import com.sk89q.worldedit.data.DataException;
 import com.sk89q.worldedit.foundation.Block;
 
-/**
- * A blind handler of blocks with TileEntity data that directly access Minecraft's
- * classes through CraftBukkit.
- * </p>
- * Usage of this class may break terribly in the future, and therefore usage should
- * be trapped in a handler for {@link Throwable}.
- */
-class NmsBlock extends BaseBlock implements TileEntityBlock {
+public abstract class NmsBlock extends BaseBlock {
 
-    private static final Logger logger = Logger.getLogger(NmsBlock.class.getCanonicalName());
-    private static Field compoundMapField;
-    private static final Field nmsBlock_isTileEntityField; // The field is deobfuscated but the method isn't. No idea why.
-    private NBTTagCompound nbtData = null;
-
-    static {
-        Field field;
-        try {
-            field = net.minecraft.server.v1_4_6.Block.class.getDeclaredField("isTileEntity");
-            field.setAccessible(true);
-        } catch (NoSuchFieldException e) {
-            logger.severe("Could not find NMS block tile entity field!");
-            field = null;
-        }
-        nmsBlock_isTileEntityField = field;
+    protected NmsBlock(int type) {
+        super(type);
     }
 
-    /**
-     * Create a new instance with a given type ID, data value, and previous
-     * {@link TileEntityBlock}-implementing object.
-     *
-     * @param type block type ID
-     * @param data data value
-     * @param tileEntityBlock tile entity block
-     */
-    public NmsBlock(int type, int data, TileEntityBlock tileEntityBlock) {
+    protected NmsBlock(int type, int data) {
         super(type, data);
-
-        nbtData = (NBTTagCompound) fromNative(tileEntityBlock.getNbtData());
     }
 
-    /**
-     * Create a new instance with a given type ID, data value, and raw
-     * {@link NBTTagCompound} copy.
-     *
-     * @param type block type ID
-     * @param data data value
-     * @param nbtData raw NBT data
-     */
-    public NmsBlock(int type, int data, NBTTagCompound nbtData) {
-        super(type, data);
-
-        this.nbtData = nbtData;
-    }
-
-    /**
-     * Build a {@link NBTTagCompound} that has valid coordinates.
-     *
-     * @param pt coordinates to set
-     * @return the tag compound
-     */
-    private NBTTagCompound getNmsData(Vector pt) {
-        if (nbtData == null) {
-            return null;
-        }
-
-        nbtData.set("x", new NBTTagInt("x", pt.getBlockX()));
-        nbtData.set("y", new NBTTagInt("y", pt.getBlockY()));
-        nbtData.set("z", new NBTTagInt("z", pt.getBlockZ()));
-
-        return nbtData;
-    }
-
-    @Override
-    public boolean hasNbtData() {
-        return nbtData != null;
-    }
-
-    @Override
-    public String getNbtId() {
-        if (nbtData == null) {
-            return "";
-        }
-
-        return nbtData.getString("id");
-    }
-
-    @Override
-    public CompoundTag getNbtData() {
-        if (nbtData == null) {
-            return new CompoundTag(getNbtId(),
-                    new HashMap<String, Tag>());
-        }
-        return (CompoundTag) toNative(nbtData);
-    }
-
-    @Override
-    public void setNbtData(CompoundTag tag) throws DataException {
-        if (tag == null) {
-            this.nbtData = null;
-        }
-        this.nbtData = (NBTTagCompound) fromNative(tag);
-    }
-
-    /**
-     * Build an instance from the given information.
-     *
-     * @param world world to get the block from
-     * @param position position to get the block at
-     * @param type type ID of block
-     * @param data data value of block
-     * @return the block, or null
-     */
-    public static NmsBlock get(World world, Vector position, int type, int data) {
-        if (!hasTileEntity(type)) {
-            return null;
-        }
-
-        TileEntity te = ((CraftWorld) world).getHandle().getTileEntity(
-                position.getBlockX(), position.getBlockY(), position.getBlockZ());
-
-        if (te != null) {
-            NBTTagCompound tag = new NBTTagCompound();
-            te.b(tag); // Load data
-            return new NmsBlock(type, data, tag);
-        }
-
-        return null;
-    }
-
-    /**
-     * Set an instance or a {@link TileEntityBlock} to the given position.
-     *
-     * @param world world to set the block in
-     * @param position position to set the block at
-     * @param block the block to set
-     * @return true if tile entity data was copied to the world
-     */
-    public static boolean set(World world, Vector position, BaseBlock block) {
-        NBTTagCompound data = null;
-        if (!hasTileEntity(world.getBlockTypeIdAt(position.getBlockX(), position.getBlockY(), position.getBlockZ()))) {
+    public static boolean verify() {
         return false;
     }
 
-        if (block instanceof NmsBlock) {
-            NmsBlock nmsProxyBlock = (NmsBlock) block;
-            data = nmsProxyBlock.getNmsData(position);
-        } else if (block instanceof TileEntityBlock) {
-            NmsBlock nmsProxyBlock = new NmsBlock(
-                    block.getType(), block.getData(), block);
-            data = nmsProxyBlock.getNmsData(position);
-        }
-
-        if (data != null) {
-            TileEntity te = ((CraftWorld) world).getHandle().getTileEntity(
-                    position.getBlockX(), position.getBlockY(), position.getBlockZ());
-            if (te != null) {
-                te.a(data); // Load data
-                return true;
-            }
+    public static NmsBlock get(World world, Vector vector, int type, int data) {
+        return null;
     }
 
+    public static boolean set(World world, Vector vector, Block block) {
         return false;
     }
 
-    /**
-     * Tries to set a block 'safely', as in setting the block data to the location, and
-     * then triggering physics only at the end.
-     *
-     * @param world world to set the block in
-     * @param position position to set the block at
-     * @param block the block to set
-     * @param notifyAdjacent true to notify physics and what not
-     * @return true if block id or data was changed
-     */
-    public static boolean setSafely(BukkitWorld world, Vector position,
-            Block block, boolean notifyAdjacent) {
-
-        int x = position.getBlockX();
-        int y = position.getBlockY();
-        int z = position.getBlockZ();
-
-        CraftWorld craftWorld = ((CraftWorld) world.getWorld());
-
-        boolean changed = craftWorld.getHandle().setRawTypeIdAndData(
-                x, y, z, block.getId(), block.getData());
-
-        if (block instanceof BaseBlock) {
-            world.copyToWorld(position, (BaseBlock) block);
-        }
-
-        if (changed) {
-            if (notifyAdjacent) {
-                craftWorld.getHandle().update(x, y, z, block.getId());
-            } else {
-                craftWorld.getHandle().notify(x, y, z);
-            }
-        }
-
-        return changed;
+    public static boolean setSafely(World world, Vector vector, Block block, boolean notify) {
+        return false;
     }
 
     public static boolean hasTileEntity(int type) {
-        net.minecraft.server.v1_4_6.Block nmsBlock = getNmsBlock(type);
-        if (nmsBlock == null) {
         return false;
     }
 
-        try {
-            return nmsBlock_isTileEntityField.getBoolean(nmsBlock); // Once we have the field stord, gets are fast
-        } catch (IllegalAccessException e) {
+    public static boolean isValidBlockType(int type) {
         return false;
     }
-    }
-
-    public static net.minecraft.server.v1_4_6.Block getNmsBlock(int type) {
-        if (type < 0 || type >= net.minecraft.server.v1_4_6.Block.byId.length) {
-            return null;
-        }
-        return net.minecraft.server.v1_4_6.Block.byId[type];
-    }
-
-    /**
-     * Converts from a non-native NMS NBT structure to a native WorldEdit NBT
-     * structure.
-     *
-     * @param foreign non-native NMS NBT structure
-     * @return native WorldEdit NBT structure
-     */
-    @SuppressWarnings("unchecked")
-    private static Tag toNative(NBTBase foreign) {
-        if (foreign == null) {
-            return null;
-        }
-        if (foreign instanceof NBTTagCompound) {
-            Map<String, Tag> values = new HashMap<String, Tag>();
-            Collection<Object> foreignValues = null;
-
-            if (compoundMapField == null) {
-                try {
-                    // Method name may change!
-                    foreignValues = ((NBTTagCompound) foreign).c();
-                } catch (Throwable t) {
-                    try {
-                        logger.warning("WorldEdit: Couldn't get NBTTagCompound.c(), " +
-                                "so we're going to try to get at the 'map' field directly from now on");
-
-                        if (compoundMapField == null) {
-                            compoundMapField = NBTTagCompound.class.getDeclaredField("map");
-                            compoundMapField.setAccessible(true);
-                        }
-                    } catch (Throwable e) {
-                        // Can't do much beyond this
-                        throw new RuntimeException(e);
-                    }
-                }
-            }
-
-            if (compoundMapField != null) {
-                try {
-                    foreignValues = ((HashMap<Object, Object>) compoundMapField.get(foreign)).values();
-                } catch (Throwable e) {
-                    // Can't do much beyond this
-                    throw new RuntimeException(e);
-                }
-            }
-
-            for (Object obj : foreignValues) {
-                NBTBase base = (NBTBase) obj;
-                values.put(base.getName(), toNative(base));
-            }
-            return new CompoundTag(foreign.getName(), values);
-        } else if (foreign instanceof NBTTagByte) {
-            return new ByteTag(foreign.getName(), ((NBTTagByte) foreign).data);
-        } else if (foreign instanceof NBTTagByteArray) {
-            return new ByteArrayTag(foreign.getName(),
-                    ((NBTTagByteArray) foreign).data);
-        } else if (foreign instanceof NBTTagDouble) {
-            return new DoubleTag(foreign.getName(),
-                    ((NBTTagDouble) foreign).data);
-        } else if (foreign instanceof NBTTagFloat) {
-            return new FloatTag(foreign.getName(), ((NBTTagFloat) foreign).data);
-        } else if (foreign instanceof NBTTagInt) {
-            return new IntTag(foreign.getName(), ((NBTTagInt) foreign).data);
-        } else if (foreign instanceof NBTTagIntArray) {
-            return new IntArrayTag(foreign.getName(),
-                    ((NBTTagIntArray) foreign).data);
-        } else if (foreign instanceof NBTTagList) {
-            List<Tag> values = new ArrayList<Tag>();
-            NBTTagList foreignList = (NBTTagList) foreign;
-            int type = NBTConstants.TYPE_BYTE;
-            for (int i = 0; i < foreignList.size(); i++) {
-                NBTBase foreignTag = foreignList.get(i);
-                values.add(toNative(foreignTag));
-                type = foreignTag.getTypeId();
-            }
-            Class<? extends Tag> cls = NBTConstants.getClassFromType(type);
-            return new ListTag(foreign.getName(), cls, values);
-        } else if (foreign instanceof NBTTagLong) {
-            return new LongTag(foreign.getName(), ((NBTTagLong) foreign).data);
-        } else if (foreign instanceof NBTTagShort) {
-            return new ShortTag(foreign.getName(), ((NBTTagShort) foreign).data);
-        } else if (foreign instanceof NBTTagString) {
-            return new StringTag(foreign.getName(),
-                    ((NBTTagString) foreign).data);
-        } else if (foreign instanceof NBTTagEnd) {
-            return new EndTag();
-        } else {
-            throw new IllegalArgumentException("Don't know how to make native "
-                    + foreign.getClass().getCanonicalName());
-        }
-    }
-
-    /**
-     * Converts a WorldEdit-native NBT structure to a NMS structure.
-     *
-     * @param foreign structure to convert
-     * @return non-native structure
-     */
-    private static NBTBase fromNative(Tag foreign) {
-        if (foreign == null) {
-            return null;
-        }
-        if (foreign instanceof CompoundTag) {
-            NBTTagCompound tag = new NBTTagCompound(foreign.getName());
-            for (Map.Entry<String, Tag> entry : ((CompoundTag) foreign)
-                    .getValue().entrySet()) {
-                tag.set(entry.getKey(), fromNative(entry.getValue()));
-            }
-            return tag;
-        } else if (foreign instanceof ByteTag) {
-            return new NBTTagByte(foreign.getName(),
-                    ((ByteTag) foreign).getValue());
-        } else if (foreign instanceof ByteArrayTag) {
-            return new NBTTagByteArray(foreign.getName(),
-                    ((ByteArrayTag) foreign).getValue());
-        } else if (foreign instanceof DoubleTag) {
-            return new NBTTagDouble(foreign.getName(),
-                    ((DoubleTag) foreign).getValue());
-        } else if (foreign instanceof FloatTag) {
-            return new NBTTagFloat(foreign.getName(),
-                    ((FloatTag) foreign).getValue());
-        } else if (foreign instanceof IntTag) {
-            return new NBTTagInt(foreign.getName(),
-                    ((IntTag) foreign).getValue());
-        } else if (foreign instanceof IntArrayTag) {
-            return new NBTTagIntArray(foreign.getName(),
-                    ((IntArrayTag) foreign).getValue());
-        } else if (foreign instanceof ListTag) {
-            NBTTagList tag = new NBTTagList(foreign.getName());
-            ListTag foreignList = (ListTag) foreign;
-            for (Tag t : foreignList.getValue()) {
-                tag.add(fromNative(t));
-            }
-            return tag;
-        } else if (foreign instanceof LongTag) {
-            return new NBTTagLong(foreign.getName(),
-                    ((LongTag) foreign).getValue());
-        } else if (foreign instanceof ShortTag) {
-            return new NBTTagShort(foreign.getName(),
-                    ((ShortTag) foreign).getValue());
-        } else if (foreign instanceof StringTag) {
-            return new NBTTagString(foreign.getName(),
-                    ((StringTag) foreign).getValue());
-        } else if (foreign instanceof EndTag) {
-            return new NBTTagEnd();
-        } else {
-            throw new IllegalArgumentException("Don't know how to make NMS "
-                    + foreign.getClass().getCanonicalName());
-        }
-    }
-
-    public static boolean isValidBlockType(int type) throws NoClassDefFoundError {
-        return type == 0 || (type >= 1 && type < net.minecraft.server.v1_4_6.Block.byId.length
-                && net.minecraft.server.v1_4_6.Block.byId[type] != null);
-    }
 }

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

@@ -28,6 +28,7 @@ import java.util.jar.JarFile;
 import java.util.logging.Handler;
 import java.util.zip.ZipEntry;
 
+import org.bukkit.Bukkit;
 import org.bukkit.World;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
@@ -95,6 +96,7 @@ public class WorldEditPlugin extends JavaPlugin {
 
         // Make the data folders that WorldEdit uses
         getDataFolder().mkdirs();
+        new File(getDataFolder() + File.separator + "nmsblocks").mkdir();
 
         // Create the default configuration file
         createDefaultConfiguration("config.yml");
@@ -110,15 +112,16 @@ public class WorldEditPlugin extends JavaPlugin {
         // Setup interfaces
         server = new BukkitServerInterface(this, getServer());
         controller = new WorldEdit(server, config);
+        WorldEdit.getInstance().logger.setParent(Bukkit.getLogger());
         api = new WorldEditAPI(this);
         getServer().getMessenger().registerIncomingPluginChannel(this, CUI_PLUGIN_CHANNEL, new CUIChannelListener(this));
         getServer().getMessenger().registerOutgoingPluginChannel(this, CUI_PLUGIN_CHANNEL);
-
         // Now we can register events!
         getServer().getPluginManager().registerEvents(new WorldEditListener(this), this);
 
         getServer().getScheduler().scheduleAsyncRepeatingTask(this,
                 new SessionTimer(controller, getServer()), 120, 120);
+
     }
 
     /**