Utility functions used regularly

Utility.java

public class Utility {
  public static void copyDatabaseToSdcard(Context context, String databaseName) {
    if(BuildConfig.DEBUG) {
      String currentDBPath = context.getDatabasePath(databaseName).getAbsolutePath();
      String downloadDir = Environment.getExternalStorageDirectory() + "/Dump/" + databaseName + ".db";

      File dataBase = new File(currentDBPath);
      File file = new File(downloadDir);
      try {
        file.delete();
        if(!file.exists()) {
          file.createNewFile();
        }
        copyFileUsingFileStreams(dataBase, file);
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
  }
  
  private static void copyFileUsingFileStreams(File source, File dest) throws IOException {
      try (InputStream input = new FileInputStream(source); OutputStream output = new FileOutputStream(dest)) {
          byte[] buf = new byte[1024];
          int bytesRead;
          while ((bytesRead = input.read(buf)) > 0) {
              output.write(buf, 0, bytesRead);
          }
          output.flush();
      }
  }
  
  public void requestPermissions() {
    int courseLocation = ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION);
    int fineLocation = ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION);
    int readPermission = ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE);
    int writePermission = ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE);

    List<String> listPermissionsNeeded = new ArrayList<>();
    if (courseLocation != PackageManager.PERMISSION_GRANTED) {
      listPermissionsNeeded.add(Manifest.permission.ACCESS_COARSE_LOCATION);
    }
    if (fineLocation != PackageManager.PERMISSION_GRANTED) {
      listPermissionsNeeded.add(Manifest.permission.ACCESS_FINE_LOCATION);
    }
    if (readPermission != PackageManager.PERMISSION_GRANTED) {
      listPermissionsNeeded.add(Manifest.permission.READ_EXTERNAL_STORAGE);
    }
    if (writePermission != PackageManager.PERMISSION_GRANTED) {
      listPermissionsNeeded.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);
    }
    if (!listPermissionsNeeded.isEmpty()) {
      ActivityCompat.requestPermissions(
        MainActivity.this,
        listPermissionsNeeded.toArray(new String[listPermissionsNeeded.size()]),
        REQUEST_ID_MULTIPLE_PERMISSIONS
      );  
    }
  }
}

private static @Nullable AppCompatActivity scanForActivity(Context context) {
    if (context == null)
        return null;
    else if (context instanceof AppCompatActivity)
        return (AppCompatActivity) context;
    else if (context instanceof ContextWrapper)
        return scanForActivity(((ContextWrapper) context).getBaseContext());
    return null;
}