diff --git a/src/me/ryanhamshire/GriefPrevention/BlockEventHandler.java b/src/me/ryanhamshire/GriefPrevention/BlockEventHandler.java
index 546f7cc..3501af5 100644
--- a/src/me/ryanhamshire/GriefPrevention/BlockEventHandler.java
+++ b/src/me/ryanhamshire/GriefPrevention/BlockEventHandler.java
@@ -474,55 +474,62 @@ public class BlockEventHandler implements Listener
 		//pulling up is always safe
 		if(event.getDirection() == BlockFace.UP) return;
 		
-		//don't track in worlds where claims are not enabled
-        if(!GriefPrevention.instance.claimsEnabledForWorld(event.getBlock().getWorld())) return;
-		
-		//if pistons limited to only pulling blocks which are in the same claim the piston is in
-		if(GriefPrevention.instance.config_pistonsInClaimsOnly)
+		try
 		{
-		    //if piston not in a land claim, cancel event
-		    Claim pistonClaim = this.dataStore.getClaimAt(event.getBlock().getLocation(), false, null);
-		    if(pistonClaim == null)
-		    {
-		        event.setCancelled(true);
-		        return;
-		    }
-		    
-		    for(Block movedBlock : event.getBlocks())
-		    {
-		        //if pulled block isn't in the same land claim, cancel the event
-    		    if(!pistonClaim.contains(movedBlock.getLocation(), false, false))
+    		//don't track in worlds where claims are not enabled
+            if(!GriefPrevention.instance.claimsEnabledForWorld(event.getBlock().getWorld())) return;
+    		
+    		//if pistons limited to only pulling blocks which are in the same claim the piston is in
+    		if(GriefPrevention.instance.config_pistonsInClaimsOnly)
+    		{
+    		    //if piston not in a land claim, cancel event
+    		    Claim pistonClaim = this.dataStore.getClaimAt(event.getBlock().getLocation(), false, null);
+    		    if(pistonClaim == null)
     		    {
     		        event.setCancelled(true);
     		        return;
     		    }
-		    }
-		}
-		
-		//otherwise, consider ownership of both piston and block
-		else
-		{
-		    //who owns the piston, if anyone?
-            String pistonOwnerName = "_";
-            Location pistonLocation = event.getBlock().getLocation();       
-            Claim pistonClaim = this.dataStore.getClaimAt(pistonLocation, false, null);
-            if(pistonClaim != null) pistonOwnerName = pistonClaim.getOwnerName();
-		    
-		    String movingBlockOwnerName = "_";
-    		for(Block movedBlock : event.getBlocks())
+    		    
+    		    for(Block movedBlock : event.getBlocks())
+    		    {
+    		        //if pulled block isn't in the same land claim, cancel the event
+        		    if(!pistonClaim.contains(movedBlock.getLocation(), false, false))
+        		    {
+        		        event.setCancelled(true);
+        		        return;
+        		    }
+    		    }
+    		}
+    		
+    		//otherwise, consider ownership of both piston and block
+    		else
     		{
-    		    //who owns the moving block, if anyone?
-                Claim movingBlockClaim = this.dataStore.getClaimAt(movedBlock.getLocation(), false, pistonClaim);
-        		if(movingBlockClaim != null) movingBlockOwnerName = movingBlockClaim.getOwnerName();
-        		
-        		//if there are owners for the blocks, they must be the same player
-        		//otherwise cancel the event
-        		if(!pistonOwnerName.equals(movingBlockOwnerName))
+    		    //who owns the piston, if anyone?
+                String pistonOwnerName = "_";
+                Location pistonLocation = event.getBlock().getLocation();       
+                Claim pistonClaim = this.dataStore.getClaimAt(pistonLocation, false, null);
+                if(pistonClaim != null) pistonOwnerName = pistonClaim.getOwnerName();
+    		    
+    		    String movingBlockOwnerName = "_";
+        		for(Block movedBlock : event.getBlocks())
         		{
-        			event.setCancelled(true);
+        		    //who owns the moving block, if anyone?
+                    Claim movingBlockClaim = this.dataStore.getClaimAt(movedBlock.getLocation(), false, pistonClaim);
+            		if(movingBlockClaim != null) movingBlockOwnerName = movingBlockClaim.getOwnerName();
+            		
+            		//if there are owners for the blocks, they must be the same player
+            		//otherwise cancel the event
+            		if(!pistonOwnerName.equals(movingBlockOwnerName))
+            		{
+            			event.setCancelled(true);
+            		}
         		}
     		}
 		}
+		catch(NoSuchMethodError exception)
+		{
+		    GriefPrevention.AddLogEntry("Your server is running an outdated version of 1.8 which has a griefing vulnerability.  Update your server (reruns buildtools.jar to get an updated server JAR file) to ensure playres can't steal claimed blocks using pistons.");
+		}
 	}
 	
 	//blocks are ignited ONLY by flint and steel (not by being near lava, open flames, etc), unless configured otherwise