Add back discard policy

patches/server/0273-Async-command-map-building.patch

@@ -9,10 +9,10 @@ commands if the server is restarting. Using the default async pool caused issues
 due to the shutdown logic generally being much later.
 
 diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
-index 2008fd542eaf1c2fac776ae1751c227a3b6dde4b..938db2436e0f099432263aba593e684eb89a44f9 100644
+index 2008fd542eaf1c2fac776ae1751c227a3b6dde4b..6212d94503023f7bb5ca21785cbb69babe4421c3 100644
 --- a/src/main/java/net/minecraft/commands/Commands.java
 +++ b/src/main/java/net/minecraft/commands/Commands.java
-@@ -455,6 +455,21 @@ public class Commands {
+@@ -455,6 +455,25 @@ public class Commands {
          if ( org.spigotmc.SpigotConfig.tabComplete < 0 ) return; // Spigot
          // CraftBukkit start
          // Register Vanilla commands into builtRoot as before
@@ -22,11 +22,15 @@ index 2008fd542eaf1c2fac776ae1751c227a3b6dde4b..938db2436e0f099432263aba593e684e
 +        COMMAND_SENDING_POOL.execute(() -> this.sendAsync(player, commandNodes));
 +    }
 +
-+    public static final java.util.concurrent.ExecutorService COMMAND_SENDING_POOL = java.util.concurrent.Executors.newFixedThreadPool(2,
++    // Fixed pool, but with discard policy
++    public static final java.util.concurrent.ExecutorService COMMAND_SENDING_POOL = new java.util.concurrent.ThreadPoolExecutor(
++        2, 2, 0, java.util.concurrent.TimeUnit.MILLISECONDS,
++        new java.util.concurrent.LinkedBlockingQueue<>(),
 +        new com.google.common.util.concurrent.ThreadFactoryBuilder()
 +            .setNameFormat("Paper Async Command Builder Thread Pool - %1$d")
 +            .setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(net.minecraft.server.MinecraftServer.LOGGER))
-+            .build()
++            .build(),
++        new java.util.concurrent.ThreadPoolExecutor.DiscardPolicy()
 +    );
 +
 +    private void sendAsync(ServerPlayer player, Collection<CommandNode<CommandSourceStack>> dispatcherRootChildren) {
@@ -34,7 +38,7 @@ index 2008fd542eaf1c2fac776ae1751c227a3b6dde4b..938db2436e0f099432263aba593e684e
          Map<CommandNode<CommandSourceStack>, CommandNode<SharedSuggestionProvider>> map = Maps.newIdentityHashMap(); // Use identity to prevent aliasing issues
          RootCommandNode vanillaRoot = new RootCommandNode();
  
-@@ -466,13 +481,20 @@ public class Commands {
+@@ -466,13 +485,20 @@ public class Commands {
          RootCommandNode<SharedSuggestionProvider> rootcommandnode = new RootCommandNode();
  
          map.put(this.dispatcher.getRoot(), rootcommandnode);
@@ -56,7 +60,7 @@ index 2008fd542eaf1c2fac776ae1751c227a3b6dde4b..938db2436e0f099432263aba593e684e
          PlayerCommandSendEvent event = new PlayerCommandSendEvent(player.getBukkitEntity(), new LinkedHashSet<>(bukkit));
          event.getPlayer().getServer().getPluginManager().callEvent(event);
  
-@@ -486,8 +508,10 @@ public class Commands {
+@@ -486,8 +512,10 @@ public class Commands {
          player.connection.send(new ClientboundCommandsPacket(rootcommandnode));
      }
  
@@ -69,7 +73,7 @@ index 2008fd542eaf1c2fac776ae1751c227a3b6dde4b..938db2436e0f099432263aba593e684e
  
          while (iterator.hasNext()) {
              CommandNode<CommandSourceStack> commandnode2 = (CommandNode) iterator.next();
-@@ -522,7 +546,7 @@ public class Commands {
+@@ -522,7 +550,7 @@ public class Commands {
                  resultNodes.put(commandnode2, commandnode3);
                  result.addChild(commandnode3);
                  if (!commandnode2.getChildren().isEmpty()) {

patches/server/0274-Brigadier-Mojang-API.patch

@@ -87,10 +87,10 @@ index 4d5f1dd1c3bd742b1bc5e3914101a699041caa7e..5316f148f3f9128690f019d544e462b0
      public boolean hasPermission(int level) {
          // CraftBukkit start
 diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
-index 938db2436e0f099432263aba593e684eb89a44f9..71c8692487c9c1c5b956b4356501d523368c0507 100644
+index 6212d94503023f7bb5ca21785cbb69babe4421c3..642d5c6849debc5a266605b0df30d55222339438 100644
 --- a/src/main/java/net/minecraft/commands/Commands.java
 +++ b/src/main/java/net/minecraft/commands/Commands.java
-@@ -488,6 +488,7 @@ public class Commands {
+@@ -492,6 +492,7 @@ public class Commands {
              bukkit.add(node.getName());
          }
          // Paper start - Perf: Async command map building
@@ -98,7 +98,7 @@ index 938db2436e0f099432263aba593e684eb89a44f9..71c8692487c9c1c5b956b4356501d523
          net.minecraft.server.MinecraftServer.getServer().execute(() -> {
             runSync(player, bukkit, rootcommandnode);
          });
-@@ -495,6 +496,7 @@ public class Commands {
+@@ -499,6 +500,7 @@ public class Commands {
  
      private void runSync(ServerPlayer player, Collection<String> bukkit, RootCommandNode<SharedSuggestionProvider> rootcommandnode) {
          // Paper end - Perf: Async command map building
@@ -106,7 +106,7 @@ index 938db2436e0f099432263aba593e684eb89a44f9..71c8692487c9c1c5b956b4356501d523
          PlayerCommandSendEvent event = new PlayerCommandSendEvent(player.getBukkitEntity(), new LinkedHashSet<>(bukkit));
          event.getPlayer().getServer().getPluginManager().callEvent(event);
  
-@@ -515,6 +517,11 @@ public class Commands {
+@@ -519,6 +521,11 @@ public class Commands {
  
          while (iterator.hasNext()) {
              CommandNode<CommandSourceStack> commandnode2 = (CommandNode) iterator.next();

patches/server/0953-Brigadier-based-command-API.patch

@@ -2068,7 +2068,7 @@ index fc0c60b22844ed010aede2fa125b9fa440d3de80..3549ffea451b932602efb113844ba21a
      public org.bukkit.command.CommandSender getBukkitSender() {
          return this.source.getBukkitSender(this);
 diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
-index f190a65ee2e091d4d5a1e114178eac42740075d4..622677fb281242681bf8ba39de34187bcc898a5f 100644
+index cfa328f06c1b972c8328ff40580b485c02e0c270..62704cbfe3a232809b3e62d1f1d8beb3bea6496e 100644
 --- a/src/main/java/net/minecraft/commands/Commands.java
 +++ b/src/main/java/net/minecraft/commands/Commands.java
 @@ -159,7 +159,7 @@ public class Commands {
@@ -2135,7 +2135,7 @@ index f190a65ee2e091d4d5a1e114178eac42740075d4..622677fb281242681bf8ba39de34187b
                  StackTraceElement[] astacktraceelement = exception.getStackTrace();
  
                  for (int i = 0; i < Math.min(astacktraceelement.length, 3); ++i) {
-@@ -475,13 +494,7 @@ public class Commands {
+@@ -479,13 +498,7 @@ public class Commands {
      private void sendAsync(ServerPlayer player, Collection<CommandNode<CommandSourceStack>> dispatcherRootChildren) {
          // Paper end - Perf: Async command map building
          Map<CommandNode<CommandSourceStack>, CommandNode<SharedSuggestionProvider>> map = Maps.newIdentityHashMap(); // Use identity to prevent aliasing issues
@@ -2150,7 +2150,7 @@ index f190a65ee2e091d4d5a1e114178eac42740075d4..622677fb281242681bf8ba39de34187b
          RootCommandNode<SharedSuggestionProvider> rootcommandnode = new RootCommandNode();
  
          map.put(this.dispatcher.getRoot(), rootcommandnode);
-@@ -516,6 +529,7 @@ public class Commands {
+@@ -520,6 +533,7 @@ public class Commands {
  
      // Paper start - Perf: Async command map building; pass copy of children
      private void fillUsableCommands(Collection<CommandNode<CommandSourceStack>> children, CommandNode<SharedSuggestionProvider> result, CommandSourceStack source, Map<CommandNode<CommandSourceStack>, CommandNode<SharedSuggestionProvider>> resultNodes) {
@@ -2158,7 +2158,7 @@ index f190a65ee2e091d4d5a1e114178eac42740075d4..622677fb281242681bf8ba39de34187b
          Iterator iterator = children.iterator();
          // Paper end - Perf: Async command map building
  
-@@ -530,6 +544,42 @@ public class Commands {
+@@ -534,6 +548,42 @@ public class Commands {
  
              if (commandnode2.canUse(source)) {
                  ArgumentBuilder argumentbuilder = commandnode2.createBuilder(); // CraftBukkit - decompile error

patches/server/0985-Fix-entity-type-tags-suggestions-in-selectors.patch

@@ -37,10 +37,10 @@ index 3549ffea451b932602efb113844ba21a7bc72371..13bd145b1e8006a53c22f5dc0c78f29b
 +    // Paper end - tell clients to ask server for suggestions for EntityArguments
  }
 diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
-index 622677fb281242681bf8ba39de34187bcc898a5f..daca005854ae2bb68300b19bceedadcbbe1e06fd 100644
+index 62704cbfe3a232809b3e62d1f1d8beb3bea6496e..2daf16ae4a30fe03bc1a1bbc3eb95b3b7bcd83fa 100644
 --- a/src/main/java/net/minecraft/commands/Commands.java
 +++ b/src/main/java/net/minecraft/commands/Commands.java
-@@ -533,6 +533,7 @@ public class Commands {
+@@ -537,6 +537,7 @@ public class Commands {
          Iterator iterator = children.iterator();
          // Paper end - Perf: Async command map building
  
@@ -48,7 +48,7 @@ index 622677fb281242681bf8ba39de34187bcc898a5f..daca005854ae2bb68300b19bceedadcb
          while (iterator.hasNext()) {
              CommandNode<CommandSourceStack> commandnode2 = (CommandNode) iterator.next();
              // Paper start - Brigadier API
-@@ -595,6 +596,12 @@ public class Commands {
+@@ -599,6 +600,12 @@ public class Commands {
  
                      if (requiredargumentbuilder.getSuggestionsProvider() != null) {
                          requiredargumentbuilder.suggests(SuggestionProviders.safelySwap(requiredargumentbuilder.getSuggestionsProvider()));