Fix thread unsafe collections use in PlayerList

shiroha-server/minecraft-patches/features/0025-Fix-thread-unsafe-collections-use-in-PlayerList.patch

@@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: NanaChiyo0721 <nanachiyo0721@163.com>
+Date: Wed, 12 Aug 2026 16:31:01 +0800
+Subject: [PATCH] Fix thread unsafe collections use in PlayerList
+
+
+diff --git a/net/minecraft/server/players/PlayerList.java b/net/minecraft/server/players/PlayerList.java
+index 259eb7574841b1b885093b534440f8a40db4e8e2..c70d3169002681c5f2131ca8e98ef7d42c6dc4fa 100644
+--- a/net/minecraft/server/players/PlayerList.java
++++ b/net/minecraft/server/players/PlayerList.java
+@@ -132,7 +132,7 @@ public abstract class PlayerList {
+ 
+     // CraftBukkit start
+     private org.bukkit.craftbukkit.CraftServer cserver;
+-    private final Map<String,ServerPlayer> playersByName = new java.util.HashMap<>();
++    private final Map<String,ServerPlayer> playersByName = new java.util.concurrent.ConcurrentHashMap<>(); // Folia - region threading - change to CHM - Note: we do NOT expect concurrency PER KEY!
+     public @Nullable String collideRuleTeamName; // Paper - Configurable player collision
+ 
+     // Folia start - region threading

shiroha-server/minecraft-patches/features/0035-Async-protocol-switching-optimization.patch

@@ -253,7 +253,7 @@ index 95787d6d29ddb8dca78506bb2a115fa612fdaa29..8c4b60e7c7c44f20e13e917bc0bc3b75
  
      @Override
 diff --git a/net/minecraft/server/players/PlayerList.java b/net/minecraft/server/players/PlayerList.java
-index 259eb7574841b1b885093b534440f8a40db4e8e2..fcfa2b7b6e8f4c00763b8c23d6eb2699aced3e75 100644
+index c70d3169002681c5f2131ca8e98ef7d42c6dc4fa..ac5f82eaa9965f7b610f7df2d0cd4cb028951d65 100644
 --- a/net/minecraft/server/players/PlayerList.java
 +++ b/net/minecraft/server/players/PlayerList.java
 @@ -237,9 +237,11 @@ public abstract class PlayerList {

shiroha-server/minecraft-patches/features/0064-Leaf-Remove-useless-creating-stats-json-bases-on-pla.patch

@@ -9,7 +9,7 @@ As part of: Leaf (https://github.com/Winds-Studio/Leaf/blob/7f3e240bbe0970683c40
 Licensed under: MIT (https://github.com/Winds-Studio/Leaf/blob/7f3e240bbe0970683c40279a7a65f0fde47503b6/licenses/MIT.txt)
 
 diff --git a/net/minecraft/server/players/PlayerList.java b/net/minecraft/server/players/PlayerList.java
-index fcfa2b7b6e8f4c00763b8c23d6eb2699aced3e75..7ee90d4a8d333c253077871cede3fed63ef23539 100644
+index ac5f82eaa9965f7b610f7df2d0cd4cb028951d65..206af6865525d238ae1501ef023f5e5ade11faa5 100644
 --- a/net/minecraft/server/players/PlayerList.java
 +++ b/net/minecraft/server/players/PlayerList.java
 @@ -1294,22 +1294,26 @@ public abstract class PlayerList {

shiroha-server/minecraft-patches/features/0068-Leaf-Configurable-vanilla-username-check.patch

@@ -86,12 +86,12 @@ index 7443744e3f256983e52a1cefcaf66082e4a46a7b..b7553611723f7120c66e1f3e51d89df2
          }
  
 diff --git a/net/minecraft/server/players/PlayerList.java b/net/minecraft/server/players/PlayerList.java
-index 7ee90d4a8d333c253077871cede3fed63ef23539..dffb0a5cbbcf7a225402bd2e364941b5271a2c24 100644
+index 206af6865525d238ae1501ef023f5e5ade11faa5..11c49f4b19a2a7221c34203fe0b26d256b4fac26 100644
 --- a/net/minecraft/server/players/PlayerList.java
 +++ b/net/minecraft/server/players/PlayerList.java
 @@ -134,6 +134,7 @@ public abstract class PlayerList {
      private org.bukkit.craftbukkit.CraftServer cserver;
-     private final Map<String,ServerPlayer> playersByName = new java.util.HashMap<>();
+     private final Map<String,ServerPlayer> playersByName = new java.util.concurrent.ConcurrentHashMap<>(); // Folia - region threading - change to CHM - Note: we do NOT expect concurrency PER KEY!
      public @Nullable String collideRuleTeamName; // Paper - Configurable player collision
 +    public final List<String> playedPlayers = new java.util.concurrent.CopyOnWriteArrayList<>(); // Leaf - Configurable vanilla username check