Sample for Bclass

Bclass.java

Class Bclass {
  static class Cclass {
  }
  
  public void methodCalledOnce() {
    Cclass cclass = new Cclass();

    new AsyncTask<Cclass, Void, Void>() {
      @Override
      protected Void doInBackground(Cclass... params) {
        return null;
      }
    }.execute(cclass);
  }
}