From 9ce9ed3657f99f127bf194e8c042af781c1bf0be Mon Sep 17 00:00:00 2001
From: sk89q <the.sk89q@gmail.com>
Date: Fri, 26 Nov 2010 21:29:27 -0800
Subject: [PATCH] Fixed error caused by not specifying a mob spawner type.

---
 src/WorldEditListener.java | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/WorldEditListener.java b/src/WorldEditListener.java
index cf8ae9f42..d43d994a9 100755
--- a/src/WorldEditListener.java
+++ b/src/WorldEditListener.java
@@ -257,10 +257,14 @@ public class WorldEditListener extends PluginListener {
                 text[3] = args0.length > 4 ? args0[4] : "";
                 return new SignBlock(blockType.getID(), data, text);
             } else if (blockType == BlockType.MOB_SPAWNER) {
-                if (!ServerInterface.isValidMobType(args0[1])) {
-                    throw new InvalidItemException(arg, "Unknown mob type '" + args0[1] + "'");
+                if (args0.length > 0) {
+                    if (!ServerInterface.isValidMobType(args0[1])) {
+                        throw new InvalidItemException(arg, "Unknown mob type '" + args0[1] + "'");
+                    }
+                    return new MobSpawnerBlock(data, args0[1]);
+                } else {
+                    return new MobSpawnerBlock(data, "Pig");
                 }
-                return new MobSpawnerBlock(data, args0[1]);
             }
 
             return new BaseBlock(blockType.getID(), data);