State system is done. It works. Finally. Still a few rough edges that need fixing however.

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

@@ -82,6 +82,8 @@ public class WorldEditPlugin extends JavaPlugin implements TabCompleter {
 
         WorldEdit worldEdit = WorldEdit.getInstance();
 
+        loadAdapter(); // Need an adapter to work with special blocks with NBT data
+
         // Setup platform
         server = new BukkitServerInterface(this, getServer());
         worldEdit.getPlatformManager().register(server);
@@ -101,8 +103,6 @@ public class WorldEditPlugin extends JavaPlugin implements TabCompleter {
         // Forge WorldEdit and there's (probably) not going to be any other
         // platforms to be worried about... at the current time of writing
         WorldEdit.getInstance().getEventBus().post(new PlatformReadyEvent());
-
-        loadAdapter(); // Need an adapter to work with special blocks with NBT data
     }
 
     private void loadConfig() {

worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/DefaultBlockParser.java

@@ -164,8 +164,10 @@ class DefaultBlockParser extends InputParser<BlockStateHolder> {
                     if (propertyKey == null) {
                         throw new NoMatchException("Unknown state " + parts[0] + " for block " + state.getBlockType().getName());
                     }
-                    Object value = propertyKey.getValueFor(parts[1]);
-                    if (value == null) {
+                    Object value;
+                    try {
+                        value = propertyKey.getValueFor(parts[1]);
+                    } catch (IllegalArgumentException e) {
                         throw new NoMatchException("Unknown value " + parts[1] + " for state " + parts[0]);
                     }
 

worldedit-core/src/main/java/com/sk89q/worldedit/registry/state/AbstractProperty.java

@@ -21,6 +21,9 @@ package com.sk89q.worldedit.registry.state;
 
 import static com.google.common.base.Preconditions.checkState;
 
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
+
 import java.util.List;
 
 public abstract class AbstractProperty<T> implements Property<T> {

worldedit-core/src/main/java/com/sk89q/worldedit/registry/state/DirectionalProperty.java

@@ -34,7 +34,7 @@ public class DirectionalProperty extends AbstractProperty<Direction> {
     @Nullable
     @Override
     public Direction getValueFor(final String string) {
-        Direction direction = Direction.valueOf(string);
+        Direction direction = Direction.valueOf(string.toUpperCase());
         if (!getValues().contains(direction)) {
             throw new IllegalArgumentException("Invalid direction value: " + string + ". Must be in " + getValues().toString());
         }

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

@@ -24,10 +24,12 @@ import com.google.common.collect.HashBasedTable;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Table;
+import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.registry.state.Property;
 
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.Comparator;
 import java.util.HashMap;
 import java.util.LinkedHashMap;
 import java.util.List;
@@ -66,19 +68,28 @@ public class BlockState implements BlockStateHolder<BlockState> {
     }
 
     public static Map<Map<Property<?>, Object>, BlockState> generateStateMap(BlockType blockType) {
-        List<? extends Property> properties = blockType.getProperties();
-        List<List<Object>> valueLists = Lists.cartesianProduct(properties.stream().map(Property::getValues).collect(Collectors.toList()));
         Map<Map<Property<?>, Object>, BlockState> stateMap = new LinkedHashMap<>();
-        for (int i = 0; i < valueLists.size(); i++) {
-            List<Object> valueList = valueLists.get(i);
-            Property<?> property = properties.get(i);
-            LinkedHashMap<Property<?>, Object> valueMap = new LinkedHashMap<>();
-            BlockState stateMaker = new BlockState(blockType);
-            for (Object value : valueList) {
-                valueMap.put(property, value);
-                stateMaker.setState(property, value);
+        List<? extends Property> properties = blockType.getProperties();
+
+        if (!properties.isEmpty()) {
+            List<List<Object>> separatedValues = Lists.newArrayList();
+            for (Property prop : properties) {
+                List<Object> vals = Lists.newArrayList();
+                vals.addAll(prop.getValues());
+                separatedValues.add(vals);
+            }
+            List<List<Object>> valueLists = Lists.cartesianProduct(separatedValues);
+            for (List<Object> valueList : valueLists) {
+                Map<Property<?>, Object> valueMap = Maps.newTreeMap(Comparator.comparing(Property::getName));
+                BlockState stateMaker = new BlockState(blockType);
+                for (int i = 0; i < valueList.size(); i++) {
+                    Property<?> property = properties.get(i);
+                    Object value = valueList.get(i);
+                    valueMap.put(property, value);
+                    stateMaker.setState(property, value);
+                }
+                stateMap.put(valueMap, stateMaker);
             }
-            stateMap.put(valueMap, stateMaker);
         }
 
         if (stateMap.isEmpty()) {
@@ -101,7 +112,13 @@ public class BlockState implements BlockStateHolder<BlockState> {
 
             property.getValues().forEach(value -> {
                 if(value != entry.getValue()) {
-                    states.put(property, value, stateMap.get(this.withValue(property, value)));
+                    BlockState modifiedState = stateMap.get(this.withValue(property, value));
+                    if (modifiedState != null) {
+                        states.put(property, value, modifiedState);
+                    } else {
+                        System.out.println(stateMap);
+                        WorldEdit.logger.warning("Found a null state at " + this.withValue(property, value));
+                    }
                 }
             });
         }

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

@@ -76,7 +76,9 @@ public interface BlockStateHolder<T extends BlockStateHolder> {
         if (getStates().isEmpty()) {
             return this.getBlockType().getId();
         } else {
-            String properties = getStates().entrySet().stream().map(entry -> entry.getKey() + "=" + entry.getValue()).collect(Collectors.joining(","));
+            String properties =
+                    getStates().entrySet().stream().map(entry -> entry.getKey().getName() + "=" + entry.getValue().toString().toLowerCase()).collect(Collectors.joining(
+                    ","));
             return this.getBlockType().getId() + "[" + properties + "]";
         }
     }

worldedit-core/src/main/java/com/sk89q/worldedit/world/registry/BundledBlockData.java

@@ -133,9 +133,7 @@ public class BundledBlockData {
 
     public static class BlockEntry {
         private String id;
-        private String unlocalizedName;
         public String localizedName;
-        private List<String> aliases;
         private SimpleBlockMaterial material = new SimpleBlockMaterial();
     }