code: public static CPInstance findByC_S(long CPDefinitionId, String sku)
  		throws com.liferay.commerce.product.exception.NoSuchCPInstanceException {
  		return getPersistence().findByC_S(CPDefinitionId, sku);
  	}
docs: Returns the cp instance where CPDefinitionId = &#63; and sku = &#63; or throws a {@link NoSuchCPInstanceException} if it could not be found.
  
  @param CPDefinitionId the cp definition ID
  @param sku the sku
  @return the matching cp instance
  @throws NoSuchCPInstanceException if a matching cp instance could not be found