Prevent MustangProject from recalculating total price

[Zelosys]

Hello,

I am generating invoice lines using the following code:

new Item(
    new Product(position.getArticle().getArticleDescription() + " " + position.getArticleNameAddition(), 
                "Article", 
                "C62", 
                new BigDecimal(position.getTaxPercentage())), 
    position.getNetPrice(), 
    new BigDecimal(1)
)
.setGrossPrice(position.getGrossPrice()) 
.setPrice(position.getNetPrice())
.setQuantity(BigDecimal.valueOf(position.getAmount()));

In this case, position.getGrossPrice() and position.getNetPrice() already contain the total price (unit price * amount).
However, it seems that MustangProject multiplies price by quantity, leading to an incorrect total.

I could set amount = 1, but that would make the data incorrect.

How can I set the values properly and prevent MustangProject from recalculating the total price?

Thanks in advance!

[jstaerk]

Mustang will always calculate Qty*Price (/BaseAmount+Charges-Allowances) (unless you inject a complete XML), why dont you divide your item total by your amount and put the amount in the quantify and the net price in the price?