Having trouble instantiating class in java

I have the following class definition:

class PurchaseData {
    public BigDecimal purchaseYears,
        contribRate,
        milYears,
        lapsedTime, lapsedTime2, lapsedTime3,
        factor,
        purchaseCost, purchaseCost2, purchaseCost3,
        paymentAmount;
    
    PurchaseData(BigDecimal py, BigDecimal cr, BigDecimal my,
        BigDecimal l1, BigDecimal l2, BigDecimal l3,
        BigDecimal f,
        BigDecimal p1, BigDecimal p2, BigDecimal p3,
        BigDecimal pa)
    {
        purchaseYears = py;
        contribRate = cr;  
        milYears = my;   
        lapsedTime = l1; 
        lapsedTime2 = l2;
        lapsedTime3 = l3;
        factor = f;
        purchaseCost = p1; 
        purchaseCost2 = p2;
        purchaseCost3 = p3;
        paymentAmount = pa;
    }
} 

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Note that, all by itself, that class definition compiles w/o errors.

In my program I do the following:

PurchaseData rd = new PurchaseData();
//and I've tried:
PurchaseData rd = new PurchaseData(null,null,null,null,null,null,null,null,null,null,null);

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when I try to run, I get:

org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: 2,068 in the jsp file: /purchaseServiceCredit.jsp
The constructor purchaseServiceCredit_jsp.PurchaseData() is undefined

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What am I doing wrong?