From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <spottedleaf@spottedleaf.dev>
Date: Thu, 10 Dec 2020 15:18:05 -0800
Subject: [PATCH] Improve abnormal server shutdown process

- When we're trying to kill the main thread from watchdog,
step up the stop() spamming after 15s to really kill the main thread.

- Do not wait for window disposing when disposing of the server
gui. It looks like during sigint shutdown there can be some
deadlock between the server thread and awt shutdown thread here.

diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 29677908376e111abead33b42920e07aeb1d4b02..7b0b416c73c8914f3c8c570f2020490ef2babf64 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -878,10 +878,11 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
         org.spigotmc.WatchdogThread.doStop(); // Paper
         if (!isMainThread()) {
             MinecraftServer.LOGGER.info("Stopping main thread (Ignore any thread death message you see! - DO NOT REPORT THREAD DEATH TO PAPER)");
+            long start = System.nanoTime(); // Tuinity - really try hard to kill the main thread
             while (this.getThread().isAlive()) {
                 this.getThread().stop();
                 try {
-                    Thread.sleep(1);
+                    if ((System.nanoTime() - start) <= (15L * 1000L * 1000L * 1000L)) Thread.sleep(1); // Tuinity - really try hard to kill the main thread - if we're past 15s we're probably in a terrible loop, spam it to really kill it
                 } catch (InterruptedException e) {}
             }
             // We've just obliterated the main thread, this will prevent stop from dying when removing players
diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
index d0cfc0053c9f49406a31de983e4980da8f8643d6..d902efdb8f2d42ea4c3933f7fa76ebe135ee09db 100644
--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
@@ -399,7 +399,7 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
         }
 
         if (this.q != null) {
-            this.q.b();
+            //this.q.b(); // Tuinity - do not wait for AWT, causes deadlock with sigint handler (AWT shutdown will properly clear our resources anyways)
         }
 
         if (this.remoteControlListener != null) {