Fix some SonarLint Issues and Modernize Java

Persistent/src/de/steamwar/bungeecore/Bauserver.java

@@ -50,11 +50,6 @@ public class Bauserver extends Subserver {
         }
     }
 
-    @Override
-    protected void register() {
-        super.register();
-    }
-
     @Override
     protected void unregister() {
         synchronized (servers) {

Persistent/src/de/steamwar/bungeecore/Builderserver.java

@@ -49,11 +49,6 @@ public class Builderserver extends Subserver {
         }
     }
 
-    @Override
-    protected void register() {
-        super.register();
-    }
-
     @Override
     protected void unregister() {
         synchronized (servers) {

Persistent/src/de/steamwar/bungeecore/Subserver.java

@@ -116,11 +116,6 @@ public class Subserver {
         this.thread.start();
     }
 
-    @Deprecated(forRemoval = true)
-    public boolean hasStarted() {
-        return started;
-    }
-
     public void sendPlayer(Player p) {
         if (!started) {
             p.sendActionBar(generateBar(0));

src/de/steamwar/bungeecore/Node.java

@@ -170,7 +170,7 @@ public abstract class Node {
 
         public RemoteNode(String hostname) {
             super(hostname);
-            VelocityCore.getLogger().log(Level.INFO, "Added node " + hostname);
+            VelocityCore.getLogger().log(Level.INFO, "Added node {0}", hostname);
         }
 
         @Override

src/de/steamwar/bungeecore/ServerStarter.java

@@ -276,8 +276,8 @@ public class ServerStarter {
             arguments.put("checkpoint", checkpointDir.getPath());
 
         if(checkpoint && checkpointDir.exists()) {
-            try {
+            try(DataOutputStream out = new DataOutputStream(Files.newOutputStream(new File(checkpointDir, "port").toPath()))) {
-                new DataOutputStream(Files.newOutputStream(new File(checkpointDir, "port").toPath())).writeInt(port);
+                out.writeInt(port);
             } catch (IOException e) {
                 throw new SecurityException(e);
             }

src/de/steamwar/bungeecore/commands/ArenaCommand.java

@@ -65,7 +65,7 @@ public class ArenaCommand extends SWCommand {
             public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
                 List<Subserver> subserverList = Subserver.getServerList();
                 synchronized (subserverList) {
-                    return subserverList.stream().filter(subserver -> subserver.getType() == Servertype.ARENA).map(subserver -> subserver.getServer().getName()).collect(Collectors.toList());
+                    return subserverList.stream().filter(subserver -> subserver.getType() == Servertype.ARENA).map(subserver -> subserver.getServer().getName()).toList();
                 }
             }
         };

src/de/steamwar/bungeecore/commands/BauCommand.java

@@ -183,7 +183,7 @@ public class BauCommand extends SWCommand {
             public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
                 return BauweltMember.getMembers(sender.user().getId()).stream()
                         .map(bauweltMember -> SteamwarUser.get(bauweltMember.getMemberID()).getUserName())
-                        .collect(Collectors.toList());
+                        .toList();
             }
         };
     }

src/de/steamwar/bungeecore/commands/BuilderCloudCommand.java

@@ -115,7 +115,7 @@ public class BuilderCloudCommand extends SWCommand {
                 if(folder == null || (files = folder.list()) == null)
                     return Collections.emptyList();
 
-                return Arrays.stream(files).filter(file -> new File(folder, file).isDirectory()).filter(file -> s.startsWith(".") || !file.startsWith(".")).collect(Collectors.toList());
+                return Arrays.stream(files).filter(file -> new File(folder, file).isDirectory()).filter(file -> s.startsWith(".") || !file.startsWith(".")).toList();
             }
         };
     }
@@ -150,7 +150,7 @@ public class BuilderCloudCommand extends SWCommand {
                 if(folder == null || (files = folder.list()) == null)
                     return Collections.emptyList();
 
-                return Arrays.stream(files).filter(file -> new File(folder, file).isFile()).filter(file -> file.endsWith(".dat")).map(file -> file.substring(0, file.length() - 4)).collect(Collectors.toList());
+                return Arrays.stream(files).filter(file -> new File(folder, file).isFile()).filter(file -> file.endsWith(".dat")).map(file -> file.substring(0, file.length() - 4)).toList();
             }
         };
     }

src/de/steamwar/bungeecore/commands/CheckCommand.java

@@ -88,7 +88,8 @@ public class CheckCommand extends SWCommand {
         for (SchematicNode schematic : schematicList) {
             CheckSession current = currentSchems.get(schematic.getId());
             long waitedMillis = Timestamp.from(Instant.now()).getTime() - schematic.getLastUpdate().getTime();
-            String color = waitedMillis > 14400000 ? (waitedMillis > 86400000 ? "c" : "e") : "a";
+            String ce = waitedMillis > 86400000 ? "c" : "e";
+            String color = waitedMillis > 14400000 ? ce : "a";
             long hours = waitedMillis / 3600000;
             long minutes = (waitedMillis - hours * 3600000) / 60000;
             Message waitTime = new Message("CHECK_LIST_WAIT", color, hours, (minutes < 10) ? "0" + minutes : minutes);

src/de/steamwar/bungeecore/commands/DevCommand.java

@@ -51,7 +51,7 @@ public class DevCommand extends SWCommand {
             sender.system("DEV_NO_SERVER");
             return;
         } else if (devServers.size() == 1) {
-            sender.getPlayer().createConnectionRequest(devServers.values().stream().findAny().get()).fireAndForget();
+            devServers.values().stream().findAny().ifPresent(server -> sender.getPlayer().createConnectionRequest(server).fireAndForget());
             return;
         }
 

src/de/steamwar/bungeecore/commands/ListCommand.java

@@ -29,6 +29,7 @@ import de.steamwar.messages.Chatter;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.SortedMap;
 import java.util.TreeMap;
 import java.util.stream.Collectors;
 
@@ -38,8 +39,8 @@ public class ListCommand extends SWCommand {
         super("list");
     }
 
-    public static synchronized TreeMap<String, List<Player>> getCustomTablist(){
+    public static synchronized SortedMap<String, List<Player>> getCustomTablist(){
-        TreeMap<String, List<Player>> playerMap = new TreeMap<>();
+        SortedMap<String, List<Player>> playerMap = new TreeMap<>();
         for (Player player : VelocityCore.getProxy().getAllPlayers()) {
             ServerConnection pserver = player.getCurrentServer().orElse(null);
             if (pserver == null)
@@ -58,8 +59,8 @@ public class ListCommand extends SWCommand {
 
     @Register
     public void list(Chatter sender) {
-        TreeMap<String, List<Player>> playerMap = getCustomTablist();
+        SortedMap<String, List<Player>> playerMap = getCustomTablist();
-        for (String server : playerMap.navigableKeySet()) {
+        for (String server : playerMap.keySet()) {
             String serverName = server;
             if (server.equals("Bau")) {
                 serverName = sender.parseToLegacy("TABLIST_BAU");

src/de/steamwar/bungeecore/commands/ModCommand.java

@@ -57,7 +57,7 @@ public class ModCommand extends SWCommand {
             openGui(player);
         }), page -> {
             Mod.ModType filtertype = playerFilterType.get(player.user().getUUID());
-            return Mod.getAllModsFiltered(page,45, filtertype).stream().map(mod -> new SWListInv.SWListEntry<>(new SWItem("NAME_TAG", new Message("PLAIN_STRING", mod.getModName())).addLore(new Message("PLAIN_STRING", mod.getPlatform().name())), mod)).collect(Collectors.toList());
+            return Mod.getAllModsFiltered(page,45, filtertype).stream().map(mod -> new SWListInv.SWListEntry<>(new SWItem("NAME_TAG", new Message("PLAIN_STRING", mod.getModName())).addLore(new Message("PLAIN_STRING", mod.getPlatform().name())), mod)).toList();
         });
 
         swStreamInv.addItem(52, new SWItem("NAME_TAG", new Message("MOD_TITLE_FILTER")), click -> {

src/de/steamwar/bungeecore/commands/PlaytimeCommand.java

@@ -36,7 +36,7 @@ public class PlaytimeCommand extends SWCommand {
         SteamwarUser user = sender.user();
         NumberFormat format = NumberFormat.getNumberInstance(user.getLocale());
         format.setMaximumFractionDigits(2);
-        String formattedText = format.format((user.getOnlinetime() / (double) 3600));
+        String formattedText = format.format((user.getOnlinetime() / 3600d));
 
         sender.system("HOURS_PLAYED", formattedText);
     }

src/de/steamwar/bungeecore/commands/PunishmentCommand.java

@@ -72,7 +72,7 @@ public class PunishmentCommand {
         } catch (NoSuchElementException e) {
             // ignore, player does not exist
         } catch (IOException e) {
-            VelocityCore.getLogger().log(Level.SEVERE, "Could not get offline player UUID " + playerName, e);
+            VelocityCore.getLogger().log(Level.SEVERE, "Could not get offline player UUID {0}".formatted(playerName), e);
         }
         return null;
     }

src/de/steamwar/bungeecore/commands/ReplayCommand.java

@@ -61,7 +61,7 @@ public class ReplayCommand extends SWCommand {
             } else {
                 starter.arena(mode, map).start();
             }
-        }, page -> Fight.getPage(page, 45).stream().map(fight -> new SWListInv.SWListEntry<>(getFightItem(fight), fight)).collect(Collectors.toList())).open();
+        }, page -> Fight.getPage(page, 45).stream().map(fight -> new SWListInv.SWListEntry<>(getFightItem(fight), fight)).toList()).open();
     }
 
     private SWItem getFightItem(Fight fight) {

src/de/steamwar/bungeecore/commands/TeamCommand.java

@@ -236,7 +236,7 @@ public class TeamCommand extends SWCommand {
                 return Team.get(sender.user().getTeam()).getMembers().stream()
                         .map(SteamwarUser::get)
                         .map(SteamwarUser::getUserName)
-                        .collect(Collectors.toList());
+                        .toList();
             }
         };
     }
@@ -290,7 +290,7 @@ public class TeamCommand extends SWCommand {
 
     @Register(value = "info", description = "TEAM_INFO_USAGE")
     public void info(Chatter sender, @ErrorMessage("UNKNOWN_TEAM") Team team){
-        List<SteamwarUser> users = team.getMembers().stream().map(SteamwarUser::get).collect(Collectors.toList());
+        List<SteamwarUser> users = team.getMembers().stream().map(SteamwarUser::get).toList();
 
         sender.system("TEAM_INFO_TEAM", team.getTeamName(), team.getTeamColor(), team.getTeamKuerzel());
         sender.prefixless("TEAM_INFO_LEADER", users.stream().filter(SteamwarUser::isLeader).count(), getMemberList(users, true));
@@ -484,7 +484,7 @@ public class TeamCommand extends SWCommand {
         if(notDuringEvent(sender))
             return;
 
-        SWListInv<String> inv = new SWListInv<>(sender, new Message("TEAM_COLOR_TITLE"), COLOR_CODES.entrySet().stream().map(entry -> new SWListInv.SWListEntry<>(new SWItem(new Message("PLAIN_STRING", "§" + entry.getKey() + team.getTeamKuerzel()), entry.getValue()), entry.getKey())).collect(Collectors.toList()), (click, element) -> {});
+        SWListInv<String> inv = new SWListInv<>(sender, new Message("TEAM_COLOR_TITLE"), COLOR_CODES.entrySet().stream().map(entry -> new SWListInv.SWListEntry<>(new SWItem(new Message("PLAIN_STRING", "§" + entry.getKey() + team.getTeamKuerzel()), entry.getValue()), entry.getKey())).toList(), (click, element) -> {});
         inv.setCallback((click, element) -> {
             inv.close();
             team.setTeamColor(element);
@@ -512,7 +512,7 @@ public class TeamCommand extends SWCommand {
 
             @Override
             public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
-                return Event.getComing().stream().map(Event::getEventName).collect(Collectors.toList());
+                return Event.getComing().stream().map(Event::getEventName).toList();
             }
         };
     }
@@ -568,7 +568,7 @@ public class TeamCommand extends SWCommand {
             public Collection<String> tabCompletes(Chatter sender, PreviousArguments previousArguments, String s) {
                 return Team.getAll().stream()
                         .flatMap(team -> Stream.of(team.getTeamName(), team.getTeamKuerzel()))
-                        .collect(Collectors.toList());
+                        .toList();
             }
         };
     }

src/de/steamwar/bungeecore/commands/TutorialCommand.java

@@ -106,7 +106,7 @@ public class TutorialCommand extends SWCommand {
 
                     new ServerStarter().tutorial(sender.getPlayer(), tutorial).start();
                 },
-                page -> (own ? Tutorial.getOwn(user.getId(), page, 45) : Tutorial.getPage(page, 45, released)).stream().map(tutorial -> new SWListInv.SWListEntry<>(getTutorialItem(tutorial, own), tutorial)).collect(Collectors.toList())
+                page -> (own ? Tutorial.getOwn(user.getId(), page, 45) : Tutorial.getPage(page, 45, released)).stream().map(tutorial -> new SWListInv.SWListEntry<>(getTutorialItem(tutorial, own), tutorial)).toList()
         ).open();
     }
 
@@ -129,7 +129,7 @@ public class TutorialCommand extends SWCommand {
     private void rate(PlayerChatter sender, Tutorial tutorial) {
         int[] rates = new int[]{1, 2, 3, 4, 5};
 
-        new SWListInv<>(sender, new Message("TUTORIAL_RATE_TITLE"), Arrays.stream(rates).mapToObj(rate -> new SWListInv.SWListEntry<>(new SWItem("NETHER_STAR", new Message("TUTORIAL_RATE", rate)), rate)).collect(Collectors.toList()), (click, rate) -> {
+        new SWListInv<>(sender, new Message("TUTORIAL_RATE_TITLE"), Arrays.stream(rates).mapToObj(rate -> new SWListInv.SWListEntry<>(new SWItem("NETHER_STAR", new Message("TUTORIAL_RATE", rate)), rate)).toList(), (click, rate) -> {
             tutorial.rate(sender.user().getId(), rate);
             SWInventory.close(sender);
         }).open();

src/de/steamwar/bungeecore/commands/VerifyCommand.java

@@ -51,7 +51,7 @@ public class VerifyCommand extends SWCommand {
 
         User user = AuthManager.connectAuth(sender.user(), code);
         if(user != null) {
-            VelocityCore.getLogger().log(Level.INFO, sender.user().getUserName() + " Verified with Discorduser: " + user.getIdLong());
+            VelocityCore.getLogger().log(Level.INFO, "{0} Verified with Discorduser: {1}".formatted(sender.user().getUserName(), user.getIdLong()));
             sender.system("VERIFY_SUCCESS", user.getAsTag());
         } else {
             sender.system("VERIFY_INVALID");

src/de/steamwar/bungeecore/discord/DiscordBot.java

@@ -72,11 +72,11 @@ public class DiscordBot {
     }
 
     @Getter
-    private volatile DiscordChannel announcementChannel;
+    private DiscordChannel announcementChannel;
     @Getter
-    private volatile DiscordChatRoom ingameChat;
+    private DiscordChatRoom ingameChat;
     @Getter
-    private volatile DiscordChatRoom serverTeamChat;
+    private DiscordChatRoom serverTeamChat;
     @Getter
     private StaticMessageChannel eventChannel;
 

src/de/steamwar/bungeecore/discord/listeners/DiscordSchemUpload.java

@@ -82,7 +82,7 @@ public class DiscordSchemUpload extends ListenerAdapter {
             } catch (InterruptedException e) {
                 Thread.currentThread().interrupt();
             } catch (ExecutionException | IOException e) {
-                VelocityCore.getLogger().log(Level.SEVERE, "Could not upload schem \"" + name + "\" for user \"" + user.getUserName() + "\"", e);
+                VelocityCore.getLogger().log(Level.SEVERE, "Could not upload schem \"{0}\" for user \"{1}\"".formatted(name, user.getUserName()), e);
                 sender.system("DC_SCHEMUPLOAD_ERROR", name);
             }
         }

src/de/steamwar/bungeecore/discord/util/AuthManager.java

@@ -50,7 +50,7 @@ public class AuthManager {
         String code = Base64.getEncoder().encodeToString(randBytes);
 
         TOKENS.put(code, user);
-        VelocityCore.getLogger().log(Level.INFO, "Created Discord Auth-Token: " + code + " for: " + user.getAsTag());
+        VelocityCore.getLogger().log(Level.INFO, "Created Discord Auth-Token: {0} for: {1}", new Object[] {code, user.getAsTag()});
         VelocityCore.schedule(() -> TOKENS.remove(code)).delay(10, TimeUnit.MINUTES).schedule();
         return code;
     }

src/de/steamwar/bungeecore/discord/util/DiscordRanks.java

@@ -52,7 +52,7 @@ public class DiscordRanks {
             if (member.getRoles().stream().noneMatch(role -> role.getId().equals(prefixRole)))
                 guild.addRoleToMember(member, guild.getRoleById(prefixRole)).queue();
         }, e -> {
-            if(e instanceof ErrorResponseException && ((ErrorResponseException) e).getErrorCode() == 10007)
+            if(e instanceof ErrorResponseException err && err.getErrorCode() == 10007)
                 user.setDiscordId(null);
         });
     }

src/de/steamwar/bungeecore/listeners/ChatListener.java

@@ -46,7 +46,7 @@ import java.util.stream.Collectors;
 
 public class ChatListener extends BasicListener {
 
-    private static final List<String> rankedModes = ArenaMode.getAllModes().stream().filter(ArenaMode::isRanked).map(ArenaMode::getSchemType).collect(Collectors.toList());
+    private static final List<String> rankedModes = ArenaMode.getAllModes().stream().filter(ArenaMode::isRanked).map(ArenaMode::getSchemType).toList();
 
     @Subscribe
     public void onChatEvent(PlayerChatEvent e) {
@@ -58,7 +58,7 @@ public class ChatListener extends BasicListener {
         if (message.contains("jndi:ldap")) {
             SteamwarUser user = SteamwarUser.get(player.getUniqueId());
             PunishmentCommand.ban(user, Punishment.PERMA_TIME, "Versuchte Exploit-Ausnutzung", SteamwarUser.get(-1), true);
-            VelocityCore.getLogger().log(Level.SEVERE, user.getUserName() + " " + user.getId() + " wurde automatisch wegen jndi:ldap gebannt.");
+            VelocityCore.getLogger().log(Level.SEVERE,  "{0} {1} wurde automatisch wegen jndi:ldap gebannt.", new Object[]{user.getUserName(), user.getId()});
             return;
         }
 
@@ -78,7 +78,7 @@ public class ChatListener extends BasicListener {
     private static boolean isCommand(Player player, String message) {
         String command = message.substring(1);
         boolean isCommand = message.startsWith("/") || (message.startsWith("7") && command.split(" ", 2)[0].matches("[7/]?[A-Za-z]+"));
-        if(isCommand && !VelocityCore.getProxy().getCommandManager().executeImmediatelyAsync(player, command).join()) {
+        if(isCommand && Boolean.FALSE.equals(VelocityCore.getProxy().getCommandManager().executeImmediatelyAsync(player, command).join())) {
             if(command.startsWith("7"))
                 command = "/" + command.substring(1);
             message = "/" + command;

src/de/steamwar/bungeecore/listeners/IPSanitizer.java

@@ -46,7 +46,7 @@ public class IPSanitizer extends BasicListener {
 
     @Subscribe
     public void loginEvent(PreLoginEvent e) {
-        VelocityCore.getLogger().log(Level.INFO, e.getConnection().getRemoteAddress() + " has logged in with user name " + e.getUsername());
+        VelocityCore.getLogger().log(Level.INFO, "{0} has logged in with user name {1}".formatted(e.getConnection().getRemoteAddress(), e.getUsername()));
         remoteAddress.set(Hostname.getInitialInboundConnection((LoginInboundConnection) e.getConnection()).getConnection(), sanitized);
     }
 }

src/de/steamwar/bungeecore/mods/LabyMod.java

@@ -75,11 +75,11 @@ public class LabyMod {
 
         if(message.has("mods")) {
             VelocityCore.getLogger().log(Level.WARNING, () -> "LabyMod External Mods for debugging: " + message.getAsJsonArray("mods"));
-            for(JsonElement element : message.getAsJsonArray("mods")) {
+            //for(JsonElement element : message.getAsJsonArray("mods")) {
-                JsonObject addon = element.getAsJsonObject();
+            //    JsonObject addon = element.getAsJsonObject();
-                //TODO observe: FORGE and FABRIC mods available, do they always and with .jar? (would equal new mod platform)
+            //    //TODO observe: FORGE and FABRIC mods available, do they always and with .jar? (would equal new mod platform)
-                //mods.add(Mod.getOrCreate(addon.get("name").getAsString().replace(".jar", ""), Mod.Platform.FORGE));
+            //    //mods.add(Mod.getOrCreate(addon.get("name").getAsString().replace(".jar", ""), Mod.Platform.FORGE));
-            }
+            //}
         }
 
         ModUtils.handleMods(player, mods);

src/de/steamwar/bungeecore/mods/Lunar.java

@@ -82,8 +82,7 @@ public class Lunar {
 
             for(ModMessage mod : handshake.getInstalledModsList()) {
                 switch(mod.getType()) {
-                    case TYPE_FABRIC_INTERNAL:
+                    case TYPE_FABRIC_INTERNAL, TYPE_FORGE_INTERNAL:
-                    case TYPE_FORGE_INTERNAL:
                         // Controlled with ModSettings
                         break;
                     case TYPE_FABRIC_EXTERNAL:
@@ -92,8 +91,6 @@ public class Lunar {
                     case TYPE_FORGE_EXTERNAL:
                         mods.add(Mod.getOrCreate(mod.getName(), Mod.Platform.FORGE));
                         break;
-                    case TYPE_UNSPECIFIED:
-                    case UNRECOGNIZED:
                     default:
                         VelocityCore.getLogger().log(Level.INFO, () -> player.getUsername() + " uses Lunar mod with unknown type " + mod);
                         break;

src/de/steamwar/bungeecore/mods/ModUtils.java

@@ -54,7 +54,7 @@ public class ModUtils {
         Chatter sender = Chatter.of(uuid);
         SteamwarUser user = sender.user();
         playerModMap.put(uuid,new ArrayList<>(mods));
-        VelocityCore.getLogger().log(Level.INFO, user.getUserName() + " declares mods: " + mods.stream().map(mod -> mod.getPlatform() + ":" + mod.getModName()).collect(Collectors.joining(" ")));
+        VelocityCore.getLogger().log(Level.INFO, "{0} declares mods: {1}", new Object[]{user.getUserName(), mods.stream().map(mod -> mod.getPlatform() + ":" + mod.getModName()).collect(Collectors.joining(" "))});
 
         ModType max = ModType.YELLOW;
         Iterator<Mod> it = mods.iterator();
@@ -83,7 +83,7 @@ public class ModUtils {
 
         if(max == ModType.RED) {
             PunishmentCommand.ban(user, Timestamp.from(Instant.now().plus(7, ChronoUnit.DAYS)), message, SteamwarUser.get(-1), false);
-            VelocityCore.getLogger().log(Level.SEVERE, user.getUserName() + " " + user.getId() + " wurde automatisch wegen der Mods " + modList + " gebannt.");
+            VelocityCore.getLogger().log(Level.SEVERE, "{0} {1} wurde automatisch wegen der Mods {2} gebannt.", new Object[]{user.getUserName(), user.getId(), modList});
         }
 
         disconnect.accept(LegacyComponentSerializer.legacySection().deserialize(message));

src/de/steamwar/bungeecore/network/NetworkSender.java

@@ -34,7 +34,7 @@ public class NetworkSender {
 
     @SneakyThrows
     public static void send(Player player, NetworkPacket packet) {
-        player.getCurrentServer().map(server -> server.sendPluginMessage(swBridge, packet.serialize()));
+        player.getCurrentServer().ifPresent(server -> server.sendPluginMessage(swBridge, packet.serialize()));
     }
 
     public static void send(RegisteredServer server, NetworkPacket packet) {

src/de/steamwar/bungeecore/network/ServerMetaInfo.java

@@ -21,12 +21,5 @@ package de.steamwar.bungeecore.network;
 
 import com.velocitypowered.api.proxy.ServerConnection;
 import de.steamwar.network.packets.MetaInfos;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
 
-@Getter
+public record ServerMetaInfo(ServerConnection sender) implements MetaInfos {}
-@AllArgsConstructor
-public class ServerMetaInfo implements MetaInfos {
-
-    private final ServerConnection sender;
-}

src/de/steamwar/bungeecore/network/handlers/EloPlayerHandler.java

@@ -31,6 +31,7 @@ import lombok.RequiredArgsConstructor;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer;
 import net.kyori.adventure.title.Title;
+import org.jetbrains.annotations.NotNull;
 
 import java.time.Duration;
 import java.util.*;
@@ -173,17 +174,7 @@ public class EloPlayerHandler extends PacketHandler {
         if (player == null)
             return;
 
-        String finalOldEmblem = (oldEmblem.isEmpty() ? "/" : oldEmblem).trim();
+        IntFunction<String> getRankup = getEmblemTransition(oldEmblem, newEmblem, arrowColor);
-        String finalNewEmblem = (newEmblem.isEmpty() ? "/" : newEmblem).trim();
-
-        IntFunction<String> getRankup = i -> {
-            if (oldEmblem.equals(newEmblem)) return "§8" + finalOldEmblem;
-            if (i < 8) return "§8" + finalOldEmblem;
-            if (i < 16) return "§8" + finalOldEmblem + arrowColor + " >";
-            if (i < 24) return "§8" + finalOldEmblem + arrowColor + " >>";
-            if (i < 32) return "§8" + finalOldEmblem + arrowColor + " >>>";
-            return "§8" + finalOldEmblem + arrowColor + " >>> §8" + finalNewEmblem;
-        };
 
         String color = ((eloGain > 0) ? "§a+" : (eloGain == 0 ? "§7" : "§c"));
 
@@ -199,6 +190,20 @@ public class EloPlayerHandler extends PacketHandler {
         }
     }
 
+    private static @NotNull IntFunction<String> getEmblemTransition(String oldEmblem, String newEmblem, String arrowColor) {
+        String finalOldEmblem = (oldEmblem.isEmpty() ? "/" : oldEmblem).trim();
+        String finalNewEmblem = (newEmblem.isEmpty() ? "/" : newEmblem).trim();
+
+        return i -> {
+            if (oldEmblem.equals(newEmblem)) return "§8" + finalOldEmblem;
+            if (i < 8) return "§8" + finalOldEmblem;
+            if (i < 16) return "§8" + finalOldEmblem + arrowColor + " >";
+            if (i < 24) return "§8" + finalOldEmblem + arrowColor + " >>";
+            if (i < 32) return "§8" + finalOldEmblem + arrowColor + " >>>";
+            return "§8" + finalOldEmblem + arrowColor + " >>> §8" + finalNewEmblem;
+        };
+    }
+
     private Player player(int userId) {
         return VelocityCore.getProxy().getPlayer(SteamwarUser.get(userId).getUUID()).orElse(null);
     }

src/de/steamwar/bungeecore/network/handlers/FightInfoHandler.java

@@ -44,7 +44,7 @@ public class FightInfoHandler extends PacketHandler {
 
     @Handler
     public void handle(FightInfoPacket packet) {
-        RegisteredServer server = ((ServerMetaInfo) packet.getMetaInfos()).getSender().getServer();
+        RegisteredServer server = ((ServerMetaInfo) packet.getMetaInfos()).sender().getServer();
 
         FightInfoPacket lobbyPacket = packet.withServerName(server.getServerInfo().getName());
 

src/de/steamwar/bungeecore/network/handlers/ImALobbyHandler.java

@@ -27,6 +27,6 @@ public class ImALobbyHandler extends PacketHandler {
 
     @Handler
     public void handle(ImALobbyPacket packet) {
-        FightInfoHandler.addLobby(((ServerMetaInfo) packet.getMetaInfos()).getSender().getServer());
+        FightInfoHandler.addLobby(((ServerMetaInfo) packet.getMetaInfos()).sender().getServer());
     }
 }

src/de/steamwar/bungeecore/network/handlers/InventoryCallbackHandler.java

@@ -44,7 +44,7 @@ public class InventoryCallbackHandler extends PacketHandler {
         if(!inventoryHashMap.containsKey(owner.getId())) {
             Chatter.of(owner).system("UPDATE_INTERRUPTION");
             if(type == InventoryCallbackPacket.CallbackType.CLICK) {
-                NetworkSender.send((Player) ((ServerMetaInfo) packet.getMetaInfos()).getSender(), new CloseInventoryPacket(owner.getId()));
+                NetworkSender.send((Player) ((ServerMetaInfo) packet.getMetaInfos()).sender(), new CloseInventoryPacket(owner.getId()));
             }
             return;
         }

src/de/steamwar/bungeecore/tablist/Tablist.java

@@ -177,7 +177,7 @@ public class Tablist extends ChannelInboundHandlerAdapter {
         sendTabPacket(current, null);
         current.clear();
         synchronized (directTabItems) {
-            sendNpcPacket(npcs.stream().map(npc -> directTabItems.get(npc).getProfile().getName()).collect(Collectors.toList()), true);
+            sendNpcPacket(npcs.stream().map(npc -> directTabItems.get(npc).getProfile().getName()).toList(), true);
             npcs.clear();
         }
 

src/de/steamwar/bungeecore/tablist/TablistBuild.java

@@ -44,7 +44,7 @@ public class TablistBuild implements TablistPart {
                 continue;
 
             servers.add(server);
-            players.put(server, server.getPlayersConnected().stream().sorted(((p1, p2) -> p1.getUsername().compareToIgnoreCase(p2.getUsername()))).map(Item::new).collect(Collectors.toList()));
+            players.put(server, server.getPlayersConnected().stream().sorted(((p1, p2) -> p1.getUsername().compareToIgnoreCase(p2.getUsername()))).map(Item::new).toList());
         }
         servers.sort((s1, s2) -> s1.getServerInfo().getName().compareToIgnoreCase(s2.getServerInfo().getName()));
     }

src/de/steamwar/bungeecore/tablist/TablistServer.java

@@ -46,7 +46,7 @@ public class TablistServer implements TablistPart {
     private final List<Item> players;
 
     public TablistServer(RegisteredServer server) {
-        this(server, server.getPlayersConnected().stream().sorted((p1, p2) -> p1.getUsername().compareToIgnoreCase(p2.getUsername())).map(TablistPart.Item::new).collect(Collectors.toList()));
+        this(server, server.getPlayersConnected().stream().sorted((p1, p2) -> p1.getUsername().compareToIgnoreCase(p2.getUsername())).map(TablistPart.Item::new).toList());
     }
 
     public TablistServer(RegisteredServer server, FightInfoPacket info) {

src/de/steamwar/command/SWCommand.java

@@ -177,7 +177,7 @@ public class SWCommand extends AbstractSWCommand<Chatter> {
                 chatter.prefixless(s, new Message("PLAIN_STRING", hover), ClickEvent.suggestCommand("/" + name + " " + String.join(" ", subCommand.subCommand)));
             }
         } catch (Exception e) {
-            VelocityCore.getLogger().log(Level.WARNING, "Failed to send description of registered method '" + subCommand.method + "' with description '" + Arrays.toString(subCommand.description) + "'", e);
+            VelocityCore.getLogger().log(Level.WARNING, "Failed to send description of registered method '{0}' with description '{1}'".formatted(subCommand.method, Arrays.toString(subCommand.description)), e);
         }
     }
 }

src/de/steamwar/messages/Chatter.java

@@ -158,23 +158,23 @@ public interface Chatter {
         String pattern = "";
         if(prefixed)
             pattern = resourceBundle.getObject("PREFIX") + " ";
-        pattern += (String)resourceBundle.getObject(message.getFormat());
+        pattern += (String)resourceBundle.getObject(message.format());
 
         MessageFormat format = new MessageFormat(pattern, locale);
-        Object[] params = message.getParams();
+        Object[] params = message.params();
         for (int i = 0; i < params.length; i++) {
-            if(params[i] instanceof Message) {
+            if(params[i] instanceof Message msg) {
-                params[i] = parseToLegacy((Message) params[i]);
+                params[i] = parseToLegacy(msg);
-            } else if(params[i] instanceof Date) {
+            } else if(params[i] instanceof Date date) {
-                params[i] = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, locale).format((Date) params[i]);
+                params[i] = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, locale).format(date);
-            } else if(params[i] instanceof SteamwarUser) {
+            } else if(params[i] instanceof SteamwarUser user) {
-                params[i] = ((SteamwarUser) params[i]).getUserName();
+                params[i] = user.getUserName();
-            } else if(params[i] instanceof Player) {
+            } else if(params[i] instanceof Player player) {
-                params[i] = ((Player) params[i]).getUsername();
+                params[i] = player.getUsername();
-            } else if(params[i] instanceof Chatter) {
+            } else if(params[i] instanceof Chatter chatter) {
-                params[i] = ((Chatter) params[i]).user().getUserName();
+                params[i] = chatter.user().getUserName();
-            } else if(params[i] instanceof Function) {
+            } else if(params[i] instanceof Function func) {
-                params[i] = ((Function) params[i]).apply(this);
+                params[i] = func.apply(this);
             }
         }
         return LegacyComponentSerializer.legacySection().deserialize(format.format(params));

src/de/steamwar/messages/Message.java

@@ -19,16 +19,4 @@
 
 package de.steamwar.messages;
 
-import lombok.Getter;
+public record Message(String format, Object... params) { }
-
-@Getter
-public class Message {
-
-    private final String format;
-    private final Object[] params;
-
-    public Message(String format, Object... params) {
-        this.format = format;
-        this.params = params;
-    }
-}