From d4c9271457c31e20ca2245fcc187e3032eff10d2 Mon Sep 17 00:00:00 2001 From: Aikar Date: Thu, 23 Apr 2020 01:36:39 -0400 Subject: [PATCH] Don't fire BlockFade on worldgen threads Caused a deadlock diff --git a/src/main/java/net/minecraft/server/BlockFire.java b/src/main/java/net/minecraft/server/BlockFire.java index b41de95a63..9e501514f3 100644 --- a/src/main/java/net/minecraft/server/BlockFire.java +++ b/src/main/java/net/minecraft/server/BlockFire.java @@ -44,6 +44,7 @@ public class BlockFire extends Block { @Override public IBlockData updateState(IBlockData iblockdata, EnumDirection enumdirection, IBlockData iblockdata1, GeneratorAccess generatoraccess, BlockPosition blockposition, BlockPosition blockposition1) { // CraftBukkit start + if (!(generatoraccess instanceof WorldServer)) return this.canPlace(iblockdata, generatoraccess, blockposition) ? (IBlockData) this.a((IBlockAccess) generatoraccess, blockposition).set(BlockFire.AGE, iblockdata.get(BlockFire.AGE)) : Blocks.AIR.getBlockData(); // Paper - don't fire events in world generation if (!iblockdata.canPlace(generatoraccess, blockposition)) { CraftBlockState blockState = CraftBlockState.getBlockState(generatoraccess, blockposition); blockState.setData(Blocks.AIR.getBlockData()); -- 2.26.2