Fix some component bugs in login disconnect packet (#10090)

patches/api/Adventure.patch

@@ -3231,6 +3231,17 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/org/bukkit/event/player/AsyncPlayerPreLoginEvent.java
 +++ b/src/main/java/org/bukkit/event/player/AsyncPlayerPreLoginEvent.java
 @@ -0,0 +0,0 @@ import org.jetbrains.annotations.NotNull;
+  * Stores details for players attempting to log in.
+  * <p>
+  * This event is asynchronous, and not run using main thread.
++ * <p>
++ * When this event is fired, the player's locale is not
++ * available. Therefore, any translatable component will be
++ * rendered with the default locale, {@link java.util.Locale#US}.
++ * <p>
++ * Consider rendering any translatable yourself with {@link net.kyori.adventure.translation.GlobalTranslator#render}
++ * if the client's language is known.
+  */
  public class AsyncPlayerPreLoginEvent extends Event {
      private static final HandlerList handlers = new HandlerList();
      private Result result;
@@ -3738,6 +3749,20 @@ diff --git a/src/main/java/org/bukkit/event/player/PlayerPreLoginEvent.java b/sr
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
 --- a/src/main/java/org/bukkit/event/player/PlayerPreLoginEvent.java
 +++ b/src/main/java/org/bukkit/event/player/PlayerPreLoginEvent.java
+@@ -0,0 +0,0 @@ import org.jetbrains.annotations.NotNull;
+ 
+ /**
+  * Stores details for players attempting to log in
++ * <p>
++ * When this event is fired, the player's locale is not
++ * available. Therefore, any translatable component will be
++ * rendered with the default locale, {@link java.util.Locale#US}.
++ * <p>
++ * Consider rendering any translatable yourself with {@link net.kyori.adventure.translation.GlobalTranslator#render}
++ * if the client's language is known.
+  *
+  * @deprecated This event causes synchronization from the login thread; {@link
+  *     AsyncPlayerPreLoginEvent} is preferred to keep the secondary threads
 @@ -0,0 +0,0 @@ import org.jetbrains.annotations.NotNull;
  public class PlayerPreLoginEvent extends Event {
      private static final HandlerList handlers = new HandlerList();

patches/server/Adventure.patch

@@ -2167,6 +2167,24 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
      public static final short MAX_STRING_LENGTH = 32767;
      public static final int MAX_COMPONENT_STRING_LENGTH = 262144;
      private static final int PUBLIC_KEY_SIZE = 256;
+@@ -0,0 +0,0 @@ public class FriendlyByteBuf extends ByteBuf {
+     }
+ 
+     public <T> void writeJsonWithCodec(Codec<T> codec, T value) {
++        // Paper start - Adventure
++        this.writeJsonWithCodec(codec, value, MAX_STRING_LENGTH);
++    }
++    public <T> void writeJsonWithCodec(Codec<T> codec, T value, int maxLength) {
++        // Paper end - Adventure
+         DataResult<JsonElement> dataresult = codec.encodeStart(JsonOps.INSTANCE, value);
+ 
+         this.writeUtf(FriendlyByteBuf.GSON.toJson((JsonElement) Util.getOrThrow(dataresult, (s) -> {
+             return new EncoderException("Failed to encode: " + s + " " + value);
+-        })));
++        })), maxLength); // Paper - Adventure
+     }
+ 
+     public <T> void writeId(IdMap<T> registry, T value) {
 @@ -0,0 +0,0 @@ public class FriendlyByteBuf extends ByteBuf {
          return (Component) this.readWithCodecTrusted(NbtOps.INSTANCE, ComponentSerialization.CODEC);
      }
@@ -2605,6 +2623,30 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
          buf.writeComponent(this.header);
          buf.writeComponent(this.footer);
      }
+diff --git a/src/main/java/net/minecraft/network/protocol/login/ClientboundLoginDisconnectPacket.java b/src/main/java/net/minecraft/network/protocol/login/ClientboundLoginDisconnectPacket.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/protocol/login/ClientboundLoginDisconnectPacket.java
++++ b/src/main/java/net/minecraft/network/protocol/login/ClientboundLoginDisconnectPacket.java
+@@ -0,0 +0,0 @@ public class ClientboundLoginDisconnectPacket implements Packet<ClientLoginPacke
+     }
+ 
+     public ClientboundLoginDisconnectPacket(FriendlyByteBuf buf) {
+-        this.reason = Component.Serializer.fromJsonLenient(buf.readUtf(262144));
++        this.reason = Component.Serializer.fromJsonLenient(buf.readUtf(FriendlyByteBuf.MAX_COMPONENT_STRING_LENGTH)); // Paper - diff on change
+     }
+ 
+     @Override
+     public void write(FriendlyByteBuf buf) {
+-        buf.writeUtf(Component.Serializer.toJson(this.reason));
++        // Paper start - Adventure
++        //buf.writeUtf(Component.Serializer.toJson(this.reason));
++
++        // In the login phase, buf.adventure$locale field is always null
++        buf.writeJsonWithCodec(net.minecraft.network.chat.ComponentSerialization.localizedCodec(java.util.Locale.US), this.reason, FriendlyByteBuf.MAX_COMPONENT_STRING_LENGTH);
++        // Paper end - Adventure
+     }
+ 
+     @Override
 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