From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Fri, 4 Mar 2022 00:12:49 -0700
Subject: [PATCH] Fix deadlock on watchdog crash

The watchdog thread sets MinecraftServer#forceTicks to true which will
cause waitUntilNextTick to hang when the task queue is drained.

diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
                 }, false);
             }
 
-            this.waitUntilNextTick();
+            this.managedBlock(() -> !this.canSleepForTickNoOversleep() || this.getPendingTasksCount() == 0); // Paper - based on waitUntilNextTick
         }
 
         this.saveAllChunks(false, true, false);