diff --git a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java
index 74417dd03..d12c12853 100644
--- a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java
+++ b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java
@@ -165,19 +165,6 @@ public final class Tools {
 
         getCacioJavaArgs(javaArgList, JREUtils.jreReleaseList.get("JAVA_VERSION").startsWith("1.8.0"));
 
-/*
-        int mcReleaseDate = Integer.parseInt(versionInfo.releaseTime.substring(0, 10).replace("-", ""));
-        // 13w17a: 20130425
-        // 13w18a: 20130502
-        if (mcReleaseDate < 20130502 && versionInfo.minimumLauncherVersion < 9){
-            ctx.appendlnToLog("AWT-enabled version detected! ("+mcReleaseDate+")");
-            getCacioJavaArgs(javaArgList,false);
-        }else{
-            getCacioJavaArgs(javaArgList,false); // true
-            ctx.appendlnToLog("Headless version detected! ("+mcReleaseDate+")");
-        }
-*/
-
         if (versionInfo.logging != null) {
             String configFile = Tools.DIR_DATA + "/security/" + versionInfo.logging.client.file.id.replace("client", "log4j-rce-patch");
             if (!new File(configFile).exists()) {
@@ -375,17 +362,6 @@ public final class Tools {
                 }
             }
         }
-        /*
-        minecraftArgs.add("--width");
-        minecraftArgs.add(Integer.toString(CallbackBridge.windowWidth));
-        minecraftArgs.add("--height");
-        minecraftArgs.add(Integer.toString(CallbackBridge.windowHeight));
-
-        minecraftArgs.add("--fullscreenWidth");
-        minecraftArgs.add(Integer.toString(CallbackBridge.windowWidth));
-        minecraftArgs.add("--fullscreenHeight");
-        minecraftArgs.add(Integer.toString(CallbackBridge.windowHeight));
-        */
 
         String[] argsFromJson = JSONUtils.insertJSONValueList(
                 splitAndFilterEmpty(
@@ -455,26 +431,6 @@ public final class Tools {
 
         String[] classpath = generateLibClasspath(info);
 
-        // Debug: LWJGL 3 override
-        // File lwjgl2Folder = new File(Tools.MAIN_PATH, "lwjgl2");
-
-        /*
-         File lwjgl3Folder = new File(Tools.MAIN_PATH, "lwjgl3");
-         if (lwjgl3Folder.exists()) {
-         for (File file: lwjgl3Folder.listFiles()) {
-         if (file.getName().endsWith(".jar")) {
-         libStr.append(file.getAbsolutePath() + ":");
-         }
-         }
-         } else if (lwjgl2Folder.exists()) {
-         for (File file: lwjgl2Folder.listFiles()) {
-         if (file.getName().endsWith(".jar")) {
-         libStr.append(file.getAbsolutePath() + ":");
-         }
-         }
-         }
-         */
-
         if (isClientFirst) {
             libStr.append(getPatchedFile(actualname));
         }
@@ -811,87 +767,16 @@ public final class Tools {
         }
     }
 
-    public static String convertStream(InputStream inputStream) throws IOException {
-        return convertStream(inputStream, Charset.forName("UTF-8"));
-    }
-
-    public static String convertStream(InputStream inputStream, Charset charset) throws IOException {
-        StringBuilder out = new StringBuilder();
-        int len;
-        byte[] buf = new byte[512];
-        while((len = inputStream.read(buf))!=-1) {
-            out.append(new String(buf, 0, len, charset));
-        }
-        return out.toString();
-    }
-
-    public static File lastFileModified(String dir) {
-        File fl = new File(dir);
-
-        File[] files = fl.listFiles(File::isFile);
-        if(files == null) {
-            return null;
-            // The patch was a bit wrong...
-            // So, this may be null, why? Because this folder may not exist yet
-            // Or it may not have any files...
-            // Doesn't matter. We must check for that in the crash fragment.
-        }
-        long lastMod = Long.MIN_VALUE;
-        File choice = null;
-        for (File file : files) {
-            if (file.lastModified() > lastMod) {
-                choice = file;
-                lastMod = file.lastModified();
-            }
-        }
-        return choice;
-    }
-
-
     public static String read(InputStream is) throws IOException {
-        StringBuilder out = new StringBuilder();
-        int len;
-        byte[] buf = new byte[512];
-        while((len = is.read(buf))!=-1) {
-            out.append(new String(buf, 0, len));
-        }
-        return out.toString();
+        return IOUtils.toString(new InputStreamReader(is, StandardCharsets.UTF_8));
     }
 
     public static String read(String path) throws IOException {
-        return read(new FileInputStream(path));
-    }
-
-    public static void write(String path, byte[] content) throws IOException
-    {
-        File outPath = new File(path);
-        outPath.getParentFile().mkdirs();
-        outPath.createNewFile();
-
-        BufferedOutputStream fos = new BufferedOutputStream(new FileOutputStream(path));
-        fos.write(content, 0, content.length);
-        fos.close();
+        return IOUtils.toString(new InputStreamReader(new FileInputStream(path), StandardCharsets.UTF_8));
     }
 
     public static void write(String path, String content) throws IOException {
-        write(path, content.getBytes());
-    }
-
-    public static byte[] loadFromAssetToByte(Context ctx, String inFile) {
-        byte[] buffer = null;
-
-        try {
-            InputStream stream = ctx.getAssets().open(inFile);
-
-            int size = stream.available();
-            buffer = new byte[size];
-            stream.read(buffer);
-            stream.close();
-        } catch (IOException e) {
-            // Handle exceptions here
-            e.printStackTrace();
-        }
-        return buffer;
+        IOUtils.write(content, new FileOutputStream(path));
     }
 
     public static void downloadFile(String urlInput, String nameOutput) throws IOException {