From dd57be73018b764888a4dfc8a0fabd9c2f397edd Mon Sep 17 00:00:00 2001
From: mcmonkey4eva <mcmonkey4eva@hotmail.com>
Date: Mon, 23 Sep 2013 16:07:56 -0700
Subject: [PATCH] Ignore non-signs firing sign events, fixes #430

---
 .../denizen/scripts/containers/core/WorldScriptHelper.java     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/java/net/aufdemrand/denizen/scripts/containers/core/WorldScriptHelper.java b/src/main/java/net/aufdemrand/denizen/scripts/containers/core/WorldScriptHelper.java
index abc62641cf..289be13f3d 100644
--- a/src/main/java/net/aufdemrand/denizen/scripts/containers/core/WorldScriptHelper.java
+++ b/src/main/java/net/aufdemrand/denizen/scripts/containers/core/WorldScriptHelper.java
@@ -1087,6 +1087,9 @@ public void signChange(final SignChangeEvent event) {
 
         Player player = event.getPlayer();
         Block block = event.getBlock();
+        if (block == null || !(block.getState() instanceof Sign)) {
+            return; // Fix error induced by dark magic.
+        }
         Sign sign = (Sign) block.getState();
         dMaterial material = new dMaterial(block.getType());