docs: public static void stop(){
      //--Close logger
      isClosed = true; // <- not a thread-safe boolean
      Thread.yield(); //poor man's synchronization attempt (let everything else log that wants to)
      Thread.yield();
      //--Close Tracks
      while(depth > 0){
        depth -= 1;
        //(send signal to handlers)
        handlers.process(null, MessageType.END_TRACK, depth, System.currentTimeMillis());
      }
      //--Shutdown
      handlers.process(null, MessageType.SHUTDOWN, 0, System.currentTimeMillis());
    }