docs: public Object copy(Object obj, PersistenceBroker broker)
  			throws ObjectCopyException
  	{
  		if (obj instanceof OjbCloneable)
  		{
  			try
  			{
  				return ((OjbCloneable) obj).ojbClone();
  			}
  			catch (Exception e)
  			{
  				throw new ObjectCopyException(e);
  			}
  		}
  		else
  		{
  			throw new ObjectCopyException("Object must implement OjbCloneable in order to use the"
  										  + " CloneableObjectCopyStrategy");
  		}
  	}