Fixed some warnings.

src/main/java/com/sk89q/worldedit/ArbitraryShape.java

@@ -34,6 +34,7 @@ public abstract class ArbitraryShape {
     private int cacheOffsetX;
     private int cacheOffsetY;
     private int cacheOffsetZ;
+    @SuppressWarnings("FieldCanBeLocal")
     private int cacheSizeX;
     private int cacheSizeY;
     private int cacheSizeZ;
@@ -72,9 +73,9 @@ public abstract class ArbitraryShape {
     /**
      * Override this function to specify the shape to generate.
      *
-     * @param x
-     * @param y
-     * @param z
+     * @param x X coordinate to be queried
+     * @param y Y coordinate to be queried
+     * @param z Z coordinate to be queried
      * @param defaultMaterial The material returned by the pattern for the current block.
      * @return material to place or null to not place anything.
      */
@@ -136,7 +137,7 @@ public abstract class ArbitraryShape {
     /**
      * Generates the shape.
      *
-     * @param editSession
+     * @param editSession The EditSession to use.
      * @param pattern The pattern to generate default materials from.
      * @param hollow Specifies whether to generate a hollow shape.
      * @return number of affected blocks.
@@ -164,7 +165,6 @@ public abstract class ArbitraryShape {
                 continue;
             }
 
-            if (hollow) {
             boolean draw = false;
             do {
                 if (!isInsideCached(x + 1, y, z, pattern)) {
@@ -196,7 +196,6 @@ public abstract class ArbitraryShape {
             if (!draw) {
                 continue;
             }
-            }
 
             if (editSession.setBlock(position, material)) {
                 ++affected;

src/main/java/com/sk89q/worldedit/commands/GenerationCommands.java

@@ -269,7 +269,7 @@ public class GenerationCommands {
         
         int size = args.argsLength() > 0 ? Math.max(1, args.getInteger(0)) : 10;
         TreeGenerator.TreeType type = args.argsLength() > 1 ?
-                type = TreeGenerator.lookup(args.getString(1))
+                TreeGenerator.lookup(args.getString(1))
                 : TreeGenerator.TreeType.TREE;
         double density = args.argsLength() > 2 ? args.getDouble(2) / 100 : 0.05;