don't use File AT ALL

src/main/java/land/chipmunk/chayapak/chomens_bot/Main.java

@@ -15,6 +15,8 @@ import java.io.*;
 import java.net.URL;
 import java.net.URLConnection;
 import java.net.UnknownHostException;
+import java.nio.file.Files;
+import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.ExecutorService;
@@ -37,11 +39,12 @@ public class Main {
     private static Configuration config;
 
     public static void main(String[] args) throws IOException {
-        final File file = new File("config.yml");
+        final Path configPath = Path.of("config.yml");
+
         final Constructor constructor = new Constructor(Configuration.class, new LoaderOptions());
         final Yaml yaml = new Yaml(constructor);
 
-        if (!file.exists()) {
+        if (!Files.exists(configPath)) {
             // creates config file from default-config.yml
             InputStream is = ClassLoader.getSystemClassLoader().getResourceAsStream("default-config.yml");
 
@@ -56,14 +59,14 @@ public class Main {
             String defaultConfig = stringBuilder.toString();
 
             // writes it
-            BufferedWriter configWriter = new BufferedWriter(new FileWriter(file));
+            BufferedWriter configWriter = Files.newBufferedWriter(configPath);
             configWriter.write(defaultConfig);
             configWriter.close();
 
             LoggerUtilities.info("config.yml file not found, so the default one was created");
         }
 
-        InputStream opt = new FileInputStream(file);
+        InputStream opt = Files.newInputStream(configPath);
         BufferedReader reader = new BufferedReader(new InputStreamReader(opt));
 
         config = yaml.load(reader);

src/main/java/land/chipmunk/chayapak/chomens_bot/commands/MusicCommand.java

@@ -16,6 +16,7 @@ import net.kyori.adventure.text.format.NamedTextColor;
 import java.io.File;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.ArrayList;
@@ -54,7 +55,7 @@ false
     public Component execute(CommandContext context, String[] args, String[] fullArgs) {
         if (args.length < 1) return Component.text("Not enough arguments").color(NamedTextColor.RED);
 
-        root = Path.of(MusicPlayerPlugin.SONG_DIR.getPath());
+        root = MusicPlayerPlugin.SONG_DIR;
         return switch (args[0]) {
             case "play", "playurl", "playnbs", "playnbsurl" -> play(context, args);
             case "stop" -> stop(context);
@@ -202,8 +203,7 @@ false
         final List<Component> fullList = new ArrayList<>();
         int i = 0;
         for (String filename : filenames) {
-            final String pathString = path.toString();
+            final boolean isDirectory = Files.isDirectory(path);
-            final File file = new File(Paths.get(pathString, filename).toUri());
 
             Path location;
             try {
@@ -219,7 +219,7 @@ false
                                     ClickEvent.suggestCommand(
                                             prefix +
                                                     name +
-                                                    (file.isFile() ? " play " : " list ") +
+                                                    (isDirectory ? " list " : " play ") +
                                                     joinedPath
                                     )
                             )

src/main/java/land/chipmunk/chayapak/chomens_bot/plugins/MusicPlayerPlugin.java

@@ -14,8 +14,9 @@ import land.chipmunk.chayapak.chomens_bot.util.MathUtilities;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.format.NamedTextColor;
 
-import java.io.File;
+import java.io.IOException;
 import java.net.URL;
+import java.nio.file.Files;
 import java.nio.file.Path;
 import java.text.DecimalFormat;
 import java.util.ArrayList;
@@ -26,9 +27,13 @@ public class MusicPlayerPlugin extends Bot.Listener {
     private final Bot bot;
 
     public static final String SELECTOR = "@a[tag=!nomusic,tag=!chomens_bot_nomusic]";
-    public static final File SONG_DIR = new File("songs");
+    public static final Path SONG_DIR = Path.of("songs");
     static {
-        if (!SONG_DIR.exists()) SONG_DIR.mkdir();
+        try {
+            if (!Files.exists(SONG_DIR)) Files.createDirectory(SONG_DIR);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
 
     public Song currentSong;

src/main/java/land/chipmunk/chayapak/chomens_bot/plugins/PacketSnifferPlugin.java

@@ -4,31 +4,33 @@ import com.github.steveice10.packetlib.Session;
 import com.github.steveice10.packetlib.packet.Packet;
 import land.chipmunk.chayapak.chomens_bot.Bot;
 
-import java.io.FileOutputStream;
+import java.io.BufferedWriter;
 import java.io.IOException;
-import java.io.OutputStreamWriter;
+import java.nio.file.Files;
-import java.nio.charset.StandardCharsets;
+import java.nio.file.Path;
+import java.nio.file.StandardOpenOption;
 
 // normally unused in the main instance of the bot
 public class PacketSnifferPlugin extends Bot.Listener {
     public final boolean enabled = false;
 
-    private OutputStreamWriter writer;
+    private BufferedWriter writer;
 
     public PacketSnifferPlugin (Bot bot) {
         if (!enabled) return;
 
+        final String name = String.format(
+                "packets-%s-%s.log",
+                bot.options.host,
+                bot.options.port
+        );
+
+        final Path path = Path.of(name);
+
         try {
-            writer = new OutputStreamWriter(
+            if (!Files.exists(path)) Files.createFile(path);
-                    new FileOutputStream(
+
-                            String.format(
+            writer = Files.newBufferedWriter(path, StandardOpenOption.APPEND);
-                                    "packets-%s-%s.log",
-                                    bot.options.host,
-                                    bot.options.port
-                            )
-                    ),
-                    StandardCharsets.UTF_8
-            );
         } catch (IOException e) {
             e.printStackTrace();
         }

src/main/java/land/chipmunk/chayapak/chomens_bot/song/SongLoaderRunnable.java

@@ -6,18 +6,19 @@ import land.chipmunk.chayapak.chomens_bot.util.DownloadUtilities;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.format.NamedTextColor;
 
-import java.io.File;
+import java.io.IOException;
 import java.net.URL;
-import java.nio.file.Path;
 import java.nio.file.Files;
+import java.nio.file.Path;
 import java.nio.file.Paths;
+import java.util.stream.Stream;
 
 // Author: _ChipMC_ or hhhzzzsss? also i modified it to use runnable
 // because thread = bad !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 public class SongLoaderRunnable implements Runnable {
   public final String fileName;
 
-  private File songPath;
+  private Path songPath;
   private URL songUrl;
   public SongLoaderException exception;
   public Song song;
@@ -39,24 +40,26 @@ public class SongLoaderRunnable implements Runnable {
   public SongLoaderRunnable(Path location, Bot bot) {
     this.bot = bot;
     isUrl = false;
-    songPath = location.toFile();
+    songPath = location;
 
-    isFolder = songPath.isDirectory();
+    isFolder = Files.isDirectory(songPath);
 
     fileName = location.getFileName().toString();
   }
 
   public void run () {
     if (isFolder && !isUrl) {
-      final File[] files = songPath.listFiles();
+      try (Stream<Path> files = Files.list(songPath)) {
+        if (files != null) {
+          files.forEach((file) -> {
+            songPath = file;
+            processFile();
+          });
 
-      if (files != null) {
+          showAddedToQueue();
-        for (File file : files) {
-          songPath = file;
-          processFile();
         }
-
+      } catch (IOException e) {
-        showAddedToQueue();
+        e.printStackTrace();
       }
     } else processFile();
   }
@@ -69,8 +72,8 @@ public class SongLoaderRunnable implements Runnable {
         bytes = DownloadUtilities.DownloadToByteArray(songUrl, 10*1024*1024);
         name = Paths.get(songUrl.toURI().getPath()).getFileName().toString();
       } else {
-        bytes = Files.readAllBytes(songPath.toPath());
+        bytes = Files.readAllBytes(songPath);
-        name = songPath.getName();
+        name = fileName;
       }
     } catch (Exception e) {
       exception = new SongLoaderException(Component.text(e.getMessage()));