Fix stuff

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

@@ -334,7 +334,7 @@ public class SQLProvider implements Provider {
         String dbLocale = rs.getString("Locale");
         Locale locale = null;
         if (dbLocale != null) {
-            locale = new Locale(dbLocale);
+            locale = Locale.forLanguageTag(dbLocale);
         }
         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"), locale);
     }

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

@@ -42,10 +42,9 @@ public class SteamwarUser {
 	}
 
 	public static void invalidate(int userId) {
-		if (!byId.containsKey(userId))
+		SteamwarUser user = byId.remove(userId);
+		if (user == null)
 			return;
-		SteamwarUser user = byId.get(userId);
-		byId.remove(userId);
 		byName.remove(user.getUserName());
 		byUUID.remove(user.getUUID());
 	}
@@ -98,13 +97,11 @@ public class SteamwarUser {
 
 	public Locale getLocale() {
 		Locale locale = this.locale;
-		if (locale == null) {
+		if (locale == null)
 			locale = WorldOfColorWrapper.impl.getLocale(Bukkit.getPlayer(uuid));
-		}
-		if (locale == null) {
-			locale = Locale.getDefault();
-		}
+		if (locale != null)
 			return locale;
+		return Locale.getDefault();
 	}
 
 	public static SteamwarUser get(String userName){