code: @Override
  	protected int replaceMessage(int handle, AbstractMessage message) throws JMSException
      {
      	return ((InMemoryLinkedDataStore)dataStore).replace(handle,message);
      }
docs: /* (non-Javadoc)
  @see net.timewalker.ffmq4.storage.message.impl.AbstractMessageStore#replaceMessage(int, net.timewalker.ffmq4.common.message.AbstractMessage)