class Handler extends Thread {
  boolean running;

  static class Call {
    boolean isResponseDeferred() {
      return true;
    }
  }

  @Override
  public void run() {
    while (running) {
      Call call = null;
      try {
        if (running) {
          continue;
        }
      } catch (Exception e) {
      } finally {
        String s = call.isResponseDeferred() ? ", deferred" : "";
      }
    }
  }
}
