SpigotCore_Main/src/de/steamwar/comms/BungeeReceiver.java

@@ -23,6 +23,7 @@ import com.google.common.io.ByteArrayDataInput;
 import com.google.common.io.ByteStreams;
 import de.steamwar.comms.handlers.BungeeHandler;
 import de.steamwar.comms.handlers.InventoryHandler;
+import de.steamwar.comms.handlers.LocaleInvalidationHandler;
 import de.steamwar.core.BountifulWrapper;
 import de.steamwar.sql.BauweltMember;
 import de.steamwar.sql.SteamwarUser;
@@ -57,6 +58,7 @@ public class BungeeReceiver implements PluginMessageListener {
             Player player = Bukkit.getPlayer(SteamwarUser.get(byteArrayDataInput.readInt()).getUUID());
             player.closeInventory();
         });
+        registerHandler(PacketIdManager.LOCALE_INVALIDATION, new LocaleInvalidationHandler());
     }
 
     @Override

SpigotCore_Main/src/de/steamwar/comms/PacketIdManager.java

@@ -28,6 +28,8 @@ public class PacketIdManager {
     public static final byte PREPARE_SCHEM = 0x03;
     public static final byte BAUMEMBER_UPDATE = 0x04;
     public static final byte EXECUTE_COMMAND = 0x05;
+    public static final byte LOCALE_INVALIDATION = 0x06;
+
     //0x1(X) Bungee Inventory
     public static final byte INVENTORY_PACKET = 0x10;
     public static final byte INVENTORY_CALLBACK_PACKET = 0x11;

SpigotCore_Main/src/de/steamwar/comms/handlers/LocaleInvalidationHandler.java

@@ -0,0 +1,31 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2020  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.comms.handlers;
+
+import com.google.common.io.ByteArrayDataInput;
+import de.steamwar.sql.SteamwarUser;
+
+public class LocaleInvalidationHandler implements BungeeHandler {
+
+    @Override
+    public void handle(ByteArrayDataInput byteArrayDataInput) {
+        SteamwarUser.invalidate(byteArrayDataInput.readInt());
+    }
+}

SpigotCore_Main/src/de/steamwar/message/Message.java

@@ -21,6 +21,7 @@ package de.steamwar.message;
 
 import de.steamwar.core.BountifulWrapper;
 import de.steamwar.core.WorldOfColorWrapper;
+import de.steamwar.sql.SteamwarUser;
 import net.md_5.bungee.api.ChatMessageType;
 import net.md_5.bungee.api.chat.ClickEvent;
 import net.md_5.bungee.api.chat.HoverEvent;
@@ -74,7 +75,7 @@ public class Message {
     }
 
     private Locale getLocale(Player player){
-        return WorldOfColorWrapper.impl.getLocale(player);
+        return SteamwarUser.get(player).getLocale();
     }
 
     /* Send a message to one player */

SpigotCore_Main/src/de/steamwar/sql/SQLProvider.java

@@ -331,7 +331,8 @@ public class SQLProvider implements Provider {
     }
 
     private SteamwarUser newSteamwarUser(ResultSet rs) throws SQLException {
-        return new SteamwarUser(rs.getInt("id"), UUID.fromString(rs.getString("UUID")), rs.getString("UserName"), UserGroup.getUsergroup(rs.getString("UserGroup")), rs.getInt("Team"), rs.getBoolean("Bedrock"));
+        String dbLocale = rs.getString("Locale");
+        return new SteamwarUser(rs.getInt("id"), UUID.fromString(rs.getString("UUID")), rs.getString("UserName"), UserGroup.getUsergroup(rs.getString("UserGroup")), rs.getInt("Team"), rs.getBoolean("Bedrock"), dbLocale != null ? Locale.forLanguageTag(dbLocale) : null);
     }
 
     private static final Statement insert = new Statement("INSERT INTO Exception (server, message, stacktrace) VALUES (?, ?, ?)");

SpigotCore_Main/src/de/steamwar/sql/StandaloneProvider.java

@@ -20,6 +20,7 @@
 package de.steamwar.sql;
 
 import de.steamwar.core.WorldEditWrapper;
+import de.steamwar.core.WorldOfColorWrapper;
 import org.bukkit.Bukkit;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.entity.Player;
@@ -168,12 +169,12 @@ public class StandaloneProvider implements Provider {
         Player player = Bukkit.getPlayer(userName);
         if(player == null)
             return null;
-        return usersByUUID.computeIfAbsent(player.getUniqueId(), uuid -> new SteamwarUser(userId++, uuid, userName, UserGroup.Member, 0, false));
+        return usersByUUID.computeIfAbsent(player.getUniqueId(), uuid -> new SteamwarUser(userId++, uuid, userName, UserGroup.Member, 0, false, null));
     }
 
     @Override
     public SteamwarUser getUserByUUID(UUID uuid) {
-        return usersByUUID.computeIfAbsent(uuid, uuid1 -> new SteamwarUser(userId++, uuid1, Objects.requireNonNull(Objects.requireNonNull(Bukkit.getOfflinePlayer(uuid1)).getName()), UserGroup.Member, 0, false));
+        return usersByUUID.computeIfAbsent(uuid, uuid1 -> new SteamwarUser(userId++, uuid1, Objects.requireNonNull(Objects.requireNonNull(Bukkit.getOfflinePlayer(uuid1)).getName()), UserGroup.Member, 0, false, null));
     }
 
     @Override

SpigotCore_Main/src/de/steamwar/sql/SteamwarUser.java

@@ -20,13 +20,11 @@
 package de.steamwar.sql;
 
 import de.steamwar.core.Core;
+import de.steamwar.core.WorldOfColorWrapper;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.UUID;
+import java.util.*;
 
 public class SteamwarUser {
 
@@ -43,20 +41,30 @@ public class SteamwarUser {
 		}, 72000, 72000);
 	}
 
+	public static void invalidate(int userId) {
+		SteamwarUser user = byId.remove(userId);
+		if (user == null)
+			return;
+		byName.remove(user.getUserName());
+		byUUID.remove(user.getUUID());
+	}
+
 	private final int id;
 	private final UUID uuid;
 	private final String userName;
 	private final UserGroup userGroup;
 	private final int team;
 	private final boolean bedrock;
+	private Locale locale;
 
-	public SteamwarUser(int id, UUID uuid, String userName, UserGroup userGroup, int team, boolean bedrock) {
+	public SteamwarUser(int id, UUID uuid, String userName, UserGroup userGroup, int team, boolean bedrock, Locale locale) {
 		this.id = id;
 		this.uuid = uuid;
 		this.userName = userName;
 		this.userGroup = userGroup;
 		this.team = team;
 		this.bedrock = bedrock;
+		this.locale = locale;
 
 		byUUID.put(uuid, this);
 		byName.put(userName.toLowerCase(), this);
@@ -87,6 +95,15 @@ public class SteamwarUser {
 		return bedrock;
 	}
 
+	public Locale getLocale() {
+		if(locale != null)
+			return locale;
+		locale = WorldOfColorWrapper.impl.getLocale(Bukkit.getPlayer(uuid));
+		if (locale != null)
+			return locale;
+		return Locale.getDefault();
+	}
+
 	public static SteamwarUser get(String userName){
 		SteamwarUser user = byName.get(userName.toLowerCase());
 		if(user == null)