From 16e89c23f594441f3c62c48b6ef9c312b17850bc Mon Sep 17 00:00:00 2001
From: sk89q <the.sk89q@gmail.com>
Date: Thu, 3 Apr 2014 20:09:01 -0700
Subject: [PATCH] Added sanity check to DataValidatorExtent.

---
 .../extent/validation/DataValidatorExtent.java         | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/sk89q/worldedit/extent/validation/DataValidatorExtent.java b/src/main/java/com/sk89q/worldedit/extent/validation/DataValidatorExtent.java
index 91e9b9daa..383e54574 100644
--- a/src/main/java/com/sk89q/worldedit/extent/validation/DataValidatorExtent.java
+++ b/src/main/java/com/sk89q/worldedit/extent/validation/DataValidatorExtent.java
@@ -60,10 +60,16 @@ public class DataValidatorExtent extends AbstractDelegateExtent {
             return false;
         }
 
-        if (type == 0) {
-            block.setData(0);
+        if (block.getData() < 0) {
+            throw new SevereValidationException("Cannot set a data value that is less than 0");
         }
 
         return super.setBlock(location, block);
     }
+
+    private static class SevereValidationException extends WorldEditException {
+        private SevereValidationException(String message) {
+            super(message);
+        }
+    }
 }