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The RabbitMQ Java client library allows Java applications to interface with RabbitMQ.

There is a newer version: 5.22.0

//   The contents of this file are subject to the Mozilla Public License
//   Version 1.1 (the "License"); you may not use this file except in
//   compliance with the License. You may obtain a copy of the License at
//   http://www.mozilla.org/MPL/
//
//   Software distributed under the License is distributed on an "AS IS"
//   basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
//   License for the specific language governing rights and limitations
//   under the License.
//
//   The Original Code is RabbitMQ.
//
//   The Initial Developers of the Original Code are LShift Ltd,
//   Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd.
//
//   Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd,
//   Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd
//   are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial
//   Technologies LLC, and Rabbit Technologies Ltd.
//
//   Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift
//   Ltd. Portions created by Cohesive Financial Technologies LLC are
//   Copyright (C) 2007-2010 Cohesive Financial Technologies
//   LLC. Portions created by Rabbit Technologies Ltd are Copyright
//   (C) 2007-2010 Rabbit Technologies Ltd.
//
//   All Rights Reserved.
//
//   Contributor(s): ______________________________________.
//
package com.rabbitmq.client.impl;

import java.io.IOException;
import java.util.Date;
import java.util.Map;
import java.util.Hashtable;

import com.rabbitmq.client.BasicProperties;

public abstract class AMQBasicProperties
        extends AMQContentHeader implements BasicProperties {

    @Override
    public Object clone() throws CloneNotSupportedException {
        AMQBasicProperties bpClone = (AMQBasicProperties) super.clone();
        
        Map thisHeaders = getHeaders();
        if (thisHeaders != null) {
            Map headers = new Hashtable();
            headers.putAll(thisHeaders);
            bpClone.setHeaders(headers);
        }
        
        Date thisTimestamp = getTimestamp();
        if (thisTimestamp != null) {
            bpClone.setTimestamp((Date) thisTimestamp.clone());
        }
        
        return bpClone;
    }
}