From 6924e803b080a451e61f2f1a7d50f6a773b0db64 Mon Sep 17 00:00:00 2001
From: Morphan1 <morphanone@gmail.com>
Date: Tue, 13 Mar 2018 03:58:28 -0400
Subject: [PATCH] Fix strange sign cast exceptions, fixes #1729

---
 .../events/player/PlayerChangesSignScriptEvent.java        | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/plugin/src/main/java/net/aufdemrand/denizen/events/player/PlayerChangesSignScriptEvent.java b/plugin/src/main/java/net/aufdemrand/denizen/events/player/PlayerChangesSignScriptEvent.java
index 92bb50ee56..56b3a492f8 100644
--- a/plugin/src/main/java/net/aufdemrand/denizen/events/player/PlayerChangesSignScriptEvent.java
+++ b/plugin/src/main/java/net/aufdemrand/denizen/events/player/PlayerChangesSignScriptEvent.java
@@ -11,6 +11,7 @@
 import net.aufdemrand.denizencore.tags.core.EscapeTags;
 import net.aufdemrand.denizencore.utilities.CoreUtilities;
 import org.bukkit.Bukkit;
+import org.bukkit.block.BlockState;
 import org.bukkit.block.Sign;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
@@ -136,7 +137,11 @@ public void onPlayerChangesSign(SignChangeEvent event) {
         if (dEntity.isNPC(event.getPlayer())) {
             return;
         }
-        Sign sign = (Sign) event.getBlock().getState();
+        BlockState state = event.getBlock().getState();
+        if (!(state instanceof Sign)) {
+            return;
+        }
+        Sign sign = (Sign) state;
         material = dMaterial.getMaterialFrom(event.getBlock().getType(), event.getBlock().getData());
         location = new dLocation(event.getBlock().getLocation());
         cuboids = new dList();