public CRMDO copy(CRMDO dto)
{
	CRMSession session = getCRMSession();
	...
}

 public CRMDO copy(CRMDO dto)
{
	CRMSession session = getCRMSession();
	if( dto instanceof CUSTOMCRMDORentalTypeProduct)
	{
		CUSTOMCRMDORentalTypeProduct oldProduct = (CUSTOMCRMDORentalTypeProduct) dto;
		CUSTOMCRMDORentalTypeProduct newProduct = (CUSTOMCRMDORentalTypeProduct)oldProduct.clone();
		newProduct.setCreatedDate(getCurrentDate());
		newProduct.setCreatedByUnit(session.getUnit());
		newProduct.setCreatedByUser(ejbSession.getLoggedUser());
		newProduct.setUpdatedByUnit(null);
		newProduct.setUpdatedByUser(null);
		newProduct.setUpdatedDate(null);
	}
}