@Override
  public boolean equals(Object obj) {
    if (this == obj) return true;
    if (obj == null) return false;

    if (obj instanceof DeleteMessageBatchRequest == false) return false;
    DeleteMessageBatchRequest other = (DeleteMessageBatchRequest) obj;
    if (other.getQueueUrl() == null ^ this.getQueueUrl() == null) return false;
    if (other.getQueueUrl() != null && other.getQueueUrl().equals(this.getQueueUrl()) == false)
      return false;
    if (other.getEntries() == null ^ this.getEntries() == null) return false;
    if (other.getEntries() != null && other.getEntries().equals(this.getEntries()) == false)
      return false;
    return true;
  }