From 603d4bb5a6a0470128ae3fbc0651b39d0210cfed Mon Sep 17 00:00:00 2001
From: Josh Roy <10731363+JRoy@users.noreply.github.com>
Date: Fri, 27 Nov 2020 13:07:41 -0500
Subject: [PATCH] Fix cast check (#4813)

---
 .../Prevent-headless-pistons-from-being-created.patch         | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Spigot-Server-Patches/Prevent-headless-pistons-from-being-created.patch b/Spigot-Server-Patches/Prevent-headless-pistons-from-being-created.patch
index 85c8bd5b40..8c7e0dc7a6 100644
--- a/Spigot-Server-Patches/Prevent-headless-pistons-from-being-created.patch
+++ b/Spigot-Server-Patches/Prevent-headless-pistons-from-being-created.patch
@@ -32,8 +32,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
                                  set.add(blockposition);
 +                                // Paper start - prevent headless pistons from forming
 +                                if (!com.destroystokyo.paper.PaperConfig.allowHeadlessPistons && iblockdata.getBlock() == Blocks.MOVING_PISTON) {
-+                                    TileEntityPiston extension = (TileEntityPiston)this.world.getTileEntity(blockposition);
-+                                    if (extension.isHead()) {
++                                    TileEntity extension = this.world.getTileEntity(blockposition);
++                                    if (extension instanceof TileEntityPiston && ((TileEntityPiston) extension).isHead()) {
 +                                       EnumDirection direction = iblockdata.get(BlockPistonExtension.FACING);
 +                                       set.add(blockposition.shift(direction.opposite()));
 +                                    }